Rev. Rul. 2026-15, 2026-36 I.R.B. 216

Section 6621 of the Internal Revenue Code establishes the interest rates on overpayments and underpayments of tax. Under section 6621(a)(1), the overpayment rate is the sum of the federal short-term rate plus 3 percentage points (2 percentage points in the case of a corporation), except the rate for the portion of a corporate overpayment of tax exceeding $10,000 for a taxable period is the sum of the federal short-term rate plus 0.5 of a percentage point. Under section 6621(a)(2), the underpayment rate is the sum of the federal short-term rate plus 3 percentage points.

Section 6621(c) provides that for purposes of interest payable under section 6601 on any large corporate underpayment, the underpayment rate under section 6621(a)(2) is determined by substituting “5 percentage points” for “3 percentage points.” See section 6621(c) and section 301.6621-3 of the Regulations on Procedure and Administration for the definition of a large corporate underpayment and for the rules for determining the applicable date. Section 6621(c) and section 301.6621-3 are generally effective for periods after December 31, 1990.

Section 6621(b)(1) provides that the Secretary will determine the federal short-term rate for the first month in each calendar quarter. Section 6621(b)(2)(A) provides that the federal short-term rate determined under section 6621(b)(1) for any month applies during the first calendar quarter beginning after that month. Section 6621(b)(3) provides that the federal short-term rate for any month is the federal short-term rate determined during that month by the Secretary in accordance with section 1274(d), rounded to the nearest full percent (or, if a multiple of 1/2 of 1 percent, the rate is increased to the next highest full percent).

Notice 88-59, 1988-1 C.B. 546, announced that in determining the quarterly interest rates to be used for overpayments and underpayments of tax under section 6621, the Internal Revenue Service will use the federal short-term rate based on daily compounding because that rate is most consistent with section 6621 which, pursuant to section 6622, is subject to daily compounding.

The federal short-term rate determined in accordance with section 1274(d) during July 2026 is the rate published in Revenue Ruling 2026-13, 2026-32 IRB 132, to take effect beginning August 1, 2026. The federal short-term rate, rounded to the nearest full percent, based on daily compounding determined during the month of July 2026 is 4 percent. Accordingly, an overpayment rate of 7 percent (6 percent in the case of a corporation) and an underpayment rate of 7 percent are established for the calendar quarter beginning October 1, 2026. The overpayment rate for the portion of a corporate overpayment exceeding $10,000 for the calendar quarter beginning October 1, 2026, is 4.5 percent. The underpayment rate for large corporate underpayments for the calendar quarter beginning October 1, 2026, is 9 percent. These rates apply to amounts bearing interest during that calendar quarter.

Sections 6654(a)(1) and 6655(a)(1) provide that the underpayment rate established under section 6621 applies in determining the addition to tax under sections 6654 and 6655 for failure to pay estimated tax for any taxable year. Thus, the 7 percent rate also applies to estimated tax underpayments for the fourth calendar quarter beginning October 1, 2026. In addition, pursuant to section 6603(d)(4), the rate of interest on section 6603 deposits is 4 percent for the fourth calendar quarter in 2026.

Interest factors for daily compound interest for annual rates of 4.5 percent, 6 percent, 7 percent and 9 percent are published in Tables 14, 17, 19 and 23 of Rev. Proc. 95-17, 1995-1 C.B. 566, 569, 571, and 575.

Annual interest rates to be compounded daily pursuant to section 6622 that apply for prior periods are set forth in the tables accompanying this revenue ruling.

DRAFTING INFORMATION

The principal author of this revenue ruling is Casey R. Conrad of the Office of the Associate Chief Counsel (Procedure and Administration). For further information regarding this revenue ruling, contact Mr. Conrad at (202) 317-6844 (not a toll-free number).

365 Day Year

0.5% Compound Rate 184 Days

Days Factor Days Factor Days Factor

1 0.000013699 63 0.000863380 125 0.001713784

2 0.000027397 64 0.000877091 126 0.001727506

3 0.000041096 65 0.000890801 127 0.001741228

4 0.000054796 66 0.000904512 128 0.001754951

5 0.000068495 67 0.000918223 129 0.001768673

6 0.000082195 68 0.000931934 130 0.001782396

7 0.000095894 69 0.000945646 131 0.001796119

8 0.000109594 70 0.000959357 132 0.001809843

9 0.000123294 71 0.000973069 133 0.001823566

10 0.000136995 72 0.000986781 134 0.001837290

11 0.000150695 73 0.001000493 135 0.001851013

12 0.000164396 74 0.001014206 136 0.001864737

13 0.000178097 75 0.001027918 137 0.001878462

14 0.000191798 76 0.001041631 138 0.001892186

15 0.000205499 77 0.001055344 139 0.001905910

16 0.000219201 78 0.001069057 140 0.001919635

17 0.000232902 79 0.001082770 141 0.001933360

18 0.000246604 80 0.001096484 142 0.001947085

19 0.000260306 81 0.001110197 143 0.001960811

20 0.000274008 82 0.001123911 144 0.001974536

21 0.000287711 83 0.001137625 145 0.001988262

22 0.000301413 84 0.001151339 146 0.002001988

23 0.000315116 85 0.001165054 147 0.002015714

24 0.000328819 86 0.001178768 148 0.002029440

25 0.000342522 87 0.001192483 149 0.002043166

26 0.000356225 88 0.001206198 150 0.002056893

27 0.000369929 89 0.001219913 151 0.002070620

28 0.000383633 90 0.001233629 152 0.002084347

29 0.000397336 91 0.001247344 153 0.002098074

30 0.000411041 92 0.001261060 154 0.002111801

31 0.000424745 93 0.001274776 155 0.002125529

32 0.000438449 94 0.001288492 156 0.002139257

33 0.000452154 95 0.001302208 157 0.002152985

34 0.000465859 96 0.001315925 158 0.002166713

35 0.000479564 97 0.001329641 159 0.002180441

36 0.000493269 98 0.001343358 160 0.002194169

37 0.000506974 99 0.001357075 161 0.002207898

38 0.000520680 100 0.001370792 162 0.002221627

39 0.000534386 101 0.001384510 163 0.002235356

40 0.000548092 102 0.001398227 164 0.002249085

41 0.000561798 103 0.001411945 165 0.002262815

42 0.000575504 104 0.001425663 166 0.002276544

43 0.000589211 105 0.001439381 167 0.002290274

44 0.000602917 106 0.001453100 168 0.002304004

45 0.000616624 107 0.001466818 169 0.002317734

46 0.000630331 108 0.001480537 170 0.002331465

47 0.000644039 109 0.001494256 171 0.002345195

48 0.000657746 110 0.001507975 172 0.002358926

49 0.000671454 111 0.001521694 173 0.002372657

50 0.000685161 112 0.001535414 174 0.002386388

51 0.000698869 113 0.001549133 175 0.002400120

52 0.000712578 114 0.001562853 176 0.002413851

53 0.000726286 115 0.001576573 177 0.002427583

54 0.000739995 116 0.001590293 178 0.002441315

55 0.000753703 117 0.001604014 179 0.002455047

56 0.000767412 118 0.001617734 180 0.002468779

57 0.000781121 119 0.001631455 181 0.002482511

58 0.000794831 120 0.001645176 182 0.002496244

59 0.000808540 121 0.001658897 183 0.002509977

60 0.000822250 122 0.001672619 184 0.002523710

61 0.000835960 123 0.001686340

62 0.000849670 124 0.001700062

366 Day Year

0.5% Compound Rate 184 Days

Days Factor Days Factor Days Factor

1 0.000013661 63 0.000861020 125 0.001709097

2 0.000027323 64 0.000874693 126 0.001722782

3 0.000040984 65 0.000888366 127 0.001736467

4 0.000054646 66 0.000902040 128 0.001750152

5 0.000068308 67 0.000915713 129 0.001763837

6 0.000081970 68 0.000929387 130 0.001777522

7 0.000095632 69 0.000943061 131 0.001791208

8 0.000109295 70 0.000956735 132 0.001804893

9 0.000122958 71 0.000970409 133 0.001818579

10 0.000136620 72 0.000984084 134 0.001832265

11 0.000150283 73 0.000997758 135 0.001845951

12 0.000163947 74 0.001011433 136 0.001859638

13 0.000177610 75 0.001025108 137 0.001873324

14 0.000191274 76 0.001038783 138 0.001887011

15 0.000204938 77 0.001052459 139 0.001900698

16 0.000218602 78 0.001066134 140 0.001914385

17 0.000232266 79 0.001079810 141 0.001928073

18 0.000245930 80 0.001093486 142 0.001941760

19 0.000259595 81 0.001107162 143 0.001955448

20 0.000273260 82 0.001120839 144 0.001969136

21 0.000286924 83 0.001134515 145 0.001982824

22 0.000300590 84 0.001148192 146 0.001996512

23 0.000314255 85 0.001161869 147 0.002010201

24 0.000327920 86 0.001175546 148 0.002023889

25 0.000341586 87 0.001189223 149 0.002037578

26 0.000355252 88 0.001202900 150 0.002051267

27 0.000368918 89 0.001216578 151 0.002064957

28 0.000382584 90 0.001230256 152 0.002078646

29 0.000396251 91 0.001243934 153 0.002092336

30 0.000409917 92 0.001257612 154 0.002106025

31 0.000423584 93 0.001271291 155 0.002119715

32 0.000437251 94 0.001284969 156 0.002133405

33 0.000450918 95 0.001298648 157 0.002147096

34 0.000464586 96 0.001312327 158 0.002160786

35 0.000478253 97 0.001326006 159 0.002174477

36 0.000491921 98 0.001339685 160 0.002188168

37 0.000505589 99 0.001353365 161 0.002201859

38 0.000519257 100 0.001367044 162 0.002215550

39 0.000532925 101 0.001380724 163 0.002229242

40 0.000546594 102 0.001394404 164 0.002242933

41 0.000560262 103 0.001408085 165 0.002256625

42 0.000573931 104 0.001421765 166 0.002270317

43 0.000587600 105 0.001435446 167 0.002284010

44 0.000601269 106 0.001449127 168 0.002297702

45 0.000614939 107 0.001462808 169 0.002311395

46 0.000628608 108 0.001476489 170 0.002325087

47 0.000642278 109 0.001490170 171 0.002338780

48 0.000655948 110 0.001503852 172 0.002352473

49 0.000669618 111 0.001517533 173 0.002366167

50 0.000683289 112 0.001531215 174 0.002379860

51 0.000696959 113 0.001544897 175 0.002393554

52 0.000710630 114 0.001558580 176 0.002407248

53 0.000724301 115 0.001572262 177 0.002420942

54 0.000737972 116 0.001585945 178 0.002434636

55 0.000751643 117 0.001599628 179 0.002448331

56 0.000765315 118 0.001613311 180 0.002462025

57 0.000778986 119 0.001626994 181 0.002475720

58 0.000792658 120 0.001640678 182 0.002489415

59 0.000806330 121 0.001654361 183 0.002503110

60 0.000820003 122 0.001668045 184 0.002516806

61 0.000833675 123 0.001681729

62 0.000847348 124 0.001695413

TABLE OF INTEREST RATES PERIODS BEFORE JUL. 1, 1975 – PERIODS ENDING DEC. 31, 1986 OVERPAYMENTS AND UNDERPAYMENTS

PERIOD RATE In 1995–1 C.B. DAILY RATE TABLE

Before Jul. 1, 1975 6% Table 2, pg. 557

Jul. 1, 1975–Jan. 31, 1976 9% Table 4, pg. 559

Feb. 1, 1976–Jan. 31, 1978 7% Table 3, pg. 558

Feb. 1, 1978–Jan. 31, 1980 6% Table 2, pg. 557

Feb. 1, 1980–Jan. 31, 1982 12% Table 5, pg. 560

Feb. 1, 1982–Dec. 31, 1982 20% Table 6, pg. 560

Jan. 1, 1983–Jun. 30, 1983 16% Table 37, pg. 591

Jul. 1, 1983–Dec. 31, 1983 11% Table 27, pg. 581

Jan. 1, 1984–Jun. 30, 1984 11% Table 75, pg. 629

Jul. 1, 1984–Dec. 31, 1984 11% Table 75, pg. 629

Jan. 1, 1985–Dec. 31, 1985 13% Table 31, pg. 585

Jul. 1, 1985–Dec. 31, 1985 11% Table 27, pg. 581

Jan. 1, 1986–Jun. 30, 1986 10% Table 25, pg. 579

Jul. 1, 1986–Dec. 31, 1986 9% Table 23, pg. 577

TABLE OF INTEREST RATES FROM JAN. 1, 1987 – Dec. 31, 1998

OVERPAYMENTS UNDERPAYMENTS

1995–1 C.B. 1995–1 C.B. RATE

RATE TABLE PG RATE TABLE PG

Jan. 1, 1987–Mar. 31, 1987 8% 21 575 9% 23 577

Apr. 1, 1987–Jun. 30, 1987 8% 21 575 9% 23 577

Jul. 1, 1987–Sep. 30, 1987 8% 21 575 9% 23 577

Oct. 1, 1987–Dec. 31, 1987 9% 23 577 10% 25 579

Jan. 1, 1988–Mar. 31, 1988 10% 73 627 11% 75 629

Apr. 1, 1988–Jun. 30, 1988 9% 71 625 10% 73 627

Jul. 1, 1988–Sep. 30, 1988 9% 71 625 10% 73 627

Oct. 1, 1988–Dec. 31, 1988 10% 73 627 11% 75 629

Jan. 1, 1989–Mar. 31, 1989 10% 25 579 11% 27 581

Apr. 1, 1989–Jun. 30, 1989 11% 27 581 12% 29 583

Jul. 1, 1989–Sep. 30, 1989 11% 27 581 12% 29 583

Oct. 1, 1989–Dec. 31, 1989 10% 25 579 11% 27 581

Jan. 1, 1990–Mar. 31, 1990 10% 25 579 11% 27 581

Apr. 1, 1990–Jun. 30, 1990 10% 25 579 11% 27 581

Jul. 1, 1990–Sep. 30, 1990 10% 25 579 11% 27 581

Oct. 1, 1990–Dec. 31, 1990 10% 25 579 11% 27 581

Jan. 1, 1991–Mar. 31, 1991 10% 25 579 11% 27 581

Apr. 1, 1991–Jun. 30, 1991 9% 23 577 10% 25 579

Jul. 1, 1991–Sep. 30, 1991 9% 23 577 10% 25 579

Oct. 1, 1991–Dec. 31, 1991 9% 23 577 10% 25 579

Jan. 1, 1992–Mar. 31, 1992 8% 69 623 9% 71 625

Apr. 1, 1992–Jun. 30, 1992 7% 67 621 8% 69 623

Jul. 1, 1992–Sep. 30, 1992 7% 67 621 8% 69 623

Oct. 1, 1992–Dec. 31, 1992 6% 65 619 7% 67 621

Jan. 1, 1993–Mar. 31, 1993 6% 17 571 7% 19 573

Apr. 1, 1993–Jun. 30, 1993 6% 17 571 7% 19 573

Jul. 1, 1993–Sep. 30, 1993 6% 17 571 7% 19 573

Oct. 1, 1993–Dec. 31, 1993 6% 17 571 7% 19 573

Jan. 1, 1994–Mar. 31, 1994 6% 17 571 7% 19 573

Apr. 1, 1994–Jun. 30, 1994 6% 17 571 7% 19 573

Jul. 1, 1994–Sep. 30, 1994 7% 19 573 8% 21 575

Oct. 1, 1994–Dec. 31, 1994 8% 21 575 9% 23 577

Jan. 1, 1995–Mar. 31, 1995 8% 21 575 9% 23 577

Apr. 1, 1995–Jun. 30, 1995 9% 23 577 10% 25 579

Jul. 1, 1995–Sep. 30, 1995 8% 21 575 9% 23 577

Oct. 1, 1995–Dec. 31, 1995 8% 21 575 9% 23 577

Jan. 1, 1996–Mar. 31, 1996 8% 69 623 9% 71 625

Apr. 1, 1996–Jun. 30, 1996 7% 67 621 8% 69 623

Jul. 1, 1996–Sep. 30, 1996 8% 69 623 9% 71 625

Oct. 1, 1996–Dec. 31, 1996 8% 69 623 9% 71 625

Jan. 1, 1997–Mar. 31, 1997 8% 21 575 9% 23 577

Apr. 1, 1997–Jun. 30, 1997 8% 21 575 9% 23 577

Jul. 1, 1997–Sep. 30, 1997 8% 21 575 9% 23 577

Oct. 1, 1997–Dec. 31, 1997 8% 21 575 9% 23 577

Jan. 1, 1998–Mar. 31, 1998 8% 21 575 9% 23 577

Apr. 1, 1998–Jun. 30, 1998 7% 19 573 8% 21 575

Jul. 1, 1998–Sep. 30, 1998 7% 19 573 8% 21 575

Oct. 1, 1998–Dec. 31, 1998 7% 19 573 8% 21 575

TABLE OF INTEREST RATES FROM JANUARY 1, 1999 – PRESENT NONCORPORATE OVERPAYMENTS AND UNDERPAYMENTS

1995–1 C.B.

RATE TABLE PAGE

Jan. 1, 1999–Mar. 31, 1999 7% 19 573

Apr. 1, 1999–Jun. 30, 1999 8% 21 575

Jul. 1, 1999–Sep. 30, 1999 8% 21 575

Oct. 1, 1999–Dec. 31, 1999 8% 21 575

Jan. 1, 2000–Mar. 31, 2000 8% 69 623

Apr. 1, 2000–Jun. 30, 2000 9% 71 625

Jul. 1, 2000–Sep. 30, 2000 9% 71 625

Oct. 1, 2000–Dec. 31, 2000 9% 71 625

Jan. 1, 2001–Mar. 31, 2001 9% 23 577

Apr. 1, 2001–Jun. 30, 2001 8% 21 575

Jul. 1, 2001–Sep. 30, 2001 7% 19 573

Oct. 1, 2001–Dec. 31, 2001 7% 19 573

Jan. 1, 2002–Mar. 31, 2002 6% 17 571

Apr. 1, 2002–Jun. 30, 2002 6% 17 571

Jul. 1, 2002–Sep. 30, 2002 6% 17 571

Oct. 1, 2002–Dec. 31, 2002 6% 17 571

Jan. 1, 2003–Mar. 31, 2003 5% 15 569

Apr. 1, 2003–Jun. 30, 2003 5% 15 569

Jul. 1, 2003–Sep. 30, 2003 5% 15 569

Oct. 1, 2003–Dec. 31, 2003 4% 13 567

Jan. 1, 2004–Mar. 31, 2004 4% 61 615

Apr. 1, 2004–Jun. 30, 2004 5% 63 617

Jul. 1, 2004–Sep. 30, 2004 4% 61 615

Oct. 1, 2004–Dec. 31, 2004 5% 63 617

Jan. 1, 2005–Mar. 31, 2005 5% 15 569

Apr. 1, 2005–Jun. 30, 2005 6% 17 571

Jul. 1, 2005–Sep. 30, 2005 6% 17 571

Oct. 1, 2005–Dec. 31, 2005 7% 19 573

Jan. 1, 2006–Mar. 31, 2006 7% 19 573

Apr. 1, 2006–Jun. 30, 2006 7% 19 573

Jul. 1, 2006–Sep. 30, 2006 8% 21 575

Oct. 1, 2006–Dec. 31, 2006 8% 21 575

Jan. 1, 2007–Mar. 31, 2007 8% 21 575

Apr. 1, 2007–Jun. 30, 2007 8% 21 575

Jul. 1, 2007–Sep. 30, 2007 8% 21 575

Oct. 1, 2007–Dec. 31, 2007 8% 21 575

Jan. 1, 2008–Mar. 31, 2008 7% 67 621

Apr. 1, 2008–Jun. 30, 2008 6% 65 619

Jul. 1, 2008–Sep. 30, 2008 5% 63 617

Oct. 1, 2008–Dec. 31, 2008 6% 65 619

Jan. 1, 2009–Mar. 31, 2009 5% 15 569

Apr. 1, 2009–Jun. 30, 2009 4% 13 567

Jul. 1, 2009–Sep. 30, 2009 4% 13 567

Oct. 1, 2009–Dec. 31, 2009 4% 13 567

Jan. 1, 2010–Mar. 31, 2010 4% 13 567

Apr. 1, 2010–Jun. 30, 2010 4% 13 567

Jul. 1, 2010–Sep. 30, 2010 4% 13 567

Oct. 1, 2010–Dec. 31, 2010 4% 13 567

Jan. 1, 2011–Mar. 31, 2011 3% 11 565

Apr. 1, 2011–Jun. 30, 2011 4% 13 567

Jul. 1, 2011–Sep. 30, 2011 4% 13 567

Oct. 1, 2011–Dec. 31, 2011 3% 11 565

Jan. 1, 2012–Mar. 31, 2012 3% 59 613

Apr. 1, 2012–Jun. 30, 2012 3% 59 613

Jul. 1, 2012–Sep. 30, 2012 3% 59 613

Oct. 1, 2012–Dec. 31, 2012 3% 59 613

Jan. 1, 2013–Mar. 31, 2013 3% 11 565

Apr. 1, 2013–Jun. 30, 2013 3% 11 565

Jul. 1, 2013–Sep. 30, 2013 3% 11 565

Oct. 1, 2013–Dec. 31, 2013 3% 11 565

Jan. 1, 2014–Mar. 31, 2014 3% 11 565

Apr. 1, 2014–Jun. 30, 2014 3% 11 565

Jul. 1, 2014–Sep. 30, 2014 3% 11 565

Oct. 1, 2014–Dec. 31, 2014 3% 11 565

Jan. 1, 2015–Mar. 31, 2015 3% 11 565

Apr. 1, 2015–Jun. 30, 2015 3% 11 565

Jul. 1, 2015–Sep. 30, 2015 3% 11 565

Oct. 1, 2015–Dec. 31, 2015 3% 11 565

Jan. 1, 2016–Mar. 31, 2016 3% 59 613

Apr. 1, 2016–Jun. 30, 2016 4% 61 615

Jul. 1, 2016–Sep. 30, 2016 4% 61 615

Oct. 1, 2016–Dec. 31, 2016 4% 61 615

Jan. 1, 2017–Mar. 31, 2017 4% 13 567

Apr. 1, 2017–Jun. 30, 2017 4% 13 567

Jul. 1, 2017–Sep. 30, 2017 4% 13 567

Oct. 1, 2017–Dec. 31, 2017 4% 13 567

Jan. 1, 2018–Mar. 31, 2018 4% 13 567

Apr. 1, 2018–Jun. 30, 2018 5% 15 569

Jul. 1, 2018–Sep. 30, 2018 5% 15 569

Oct. 1, 2018–Dec. 31, 2018 5% 15 569

Jan. 1, 2019–Mar. 31, 2019 6% 17 571

Apr. 1, 2019–Jun. 30, 2019 6% 17 571

Jul. 1, 2019–Sep. 30, 2019 5% 15 569

Oct. 1, 2019–Dec. 31, 2019 5% 15 569

Jan. 1, 2020–Mar. 31, 2020 5% 63 617

Apr. 1, 2020–Jun. 30, 2020 5% 63 617

Jul. 1, 2020–Sep. 30, 2020 3% 59 613

Oct. 1, 2020–Dec. 31, 2020 3% 59 613

Jan. 1, 2021–Mar. 31, 2021 3% 11 565

Apr. 1, 2021–Jun. 30, 2021 3% 11 565

Jul. 1, 2021–Sep. 30, 2021 3% 11 565

Oct. 1, 2021–Dec. 31, 2021 3% 11 565

Jan. 1, 2022–Mar. 31, 2022 3% 11 565

Apr. 1, 2022–Jun. 30, 2022 4% 13 567

Jul. 1, 2022–Sep. 30, 2022 5% 15 569

Oct. 1, 2022–Dec. 31, 2022 6% 17 571

Jan. 1, 2023–Mar. 31, 2023 7% 19 573

Apr. 1, 2023–Jun. 30, 2023 7% 19 573

Jul. 1, 2023–Sep. 30, 2023 7% 19 573

Oct. 1, 2023–Dec. 31, 2023 8% 21 575

Jan. 1, 2024–Mar. 31, 2024 8% 69 623

Apr. 1, 2024–Jun. 30, 2024 8% 69 623

Jul. 1, 2024–Sep. 30, 2024 8% 69 623

Oct. 1, 2024–Dec. 31, 2024 8% 69 623

Jan. 1, 2025–Mar. 31, 2025 7% 19 573

Apr. 1, 2025–Jun. 30, 2025 7% 19 573

Jul. 1, 2025–Sep. 30, 2025 7% 19 573

Oct. 1, 2025–Dec. 31, 2025 7% 19 573

Jan. 1, 2026–Mar. 31, 2026 7% 19 573

Apr. 1, 2026–Jun. 30, 2026 6% 17 571

Jul. 1, 2026–Sep. 30, 2026 7% 19 573

Oct. 1, 2026–Dec. 31, 2026 7% 19 573

TABLE OF INTEREST RATES FROM JANUARY 1, 1999 – PRESENT CORPORATE OVERPAYMENTS AND UNDERPAYMENTS

OVERPAYMENTS UNDERPAYMENTS

1995–1 C.B. 1995–1 C.B.

RATE TABLE PG RATE TABLE PG

Jan. 1, 1999–Mar. 31, 1999 6% 17 571 7% 19 573

Apr. 1, 1999–Jun. 30, 1999 7% 19 573 8% 21 575

Jul. 1, 1999–Sep. 30, 1999 7% 19 573 8% 21 575

Oct. 1, 1999–Dec. 31, 1999 7% 19 573 8% 21 575

Jan. 1, 2000–Mar. 30, 2000 7% 67 621 8% 69 623

Apr. 1, 2000–Jun. 30, 2000 8% 69 623 9% 71 625

Jul. 1, 2000–Sep. 30, 2000 8% 69 623 9% 71 625

Oct. 1, 2000–Dec. 31, 2000 8% 69 623 9% 71 625

Jan. 1, 2001–Mar. 31, 2001 8% 21 575 9% 23 577

Apr. 1, 2001–Jun. 30, 2001 7% 19 573 8% 21 575

Jul. 1, 2001–Sep. 30, 2001 6% 17 571 7% 19 573

Oct. 1, 2001–Dec. 31, 2001 6% 17 571 7% 19 573

Jan. 1, 2002–Mar. 31, 2002 5% 15 569 6% 17 571

Apr. 1, 2002–Jun. 30, 2002 5% 15 569 6% 17 571

Jul. 1, 2002–Sep. 30, 2002 5% 15 569 6% 17 571

Oct. 1, 2002–Dec. 31, 2002 5% 15 569 6% 17 571

Jan. 1, 2003–Mar. 31, 2003 4% 13 567 5% 15 569

Apr. 1, 2003–Jun. 30, 2003 4% 13 567 5% 15 569

Jul. 1, 2003–Sep. 30, 2003 4% 13 567 5% 15 569

Oct. 1, 2003–Dec. 31, 2003 3% 11 565 4% 13 567

Jan. 1, 2004–Mar. 31, 2004 3% 59 613 4% 61 615

Apr. 1, 2004–Jun. 30, 2004 4% 61 615 5% 63 617

Jul. 1, 2004–Sep. 30, 2004 3% 59 613 4% 61 615

Oct. 1, 2004–Dec. 31, 2004 4% 61 615 5% 63 617

Jan. 1, 2005–Mar. 31, 2005 4% 13 567 5% 15 569

Apr. 1, 2005–Jun. 30, 2005 5% 15 569 6% 17 571

Jul. 1, 2005–Sep. 30, 2005 5% 15 569 6% 17 571

Oct. 1, 2005–Dec. 31, 2005 6% 17 571 7% 19 573

Jan. 1, 2006–Mar. 31, 2006 6% 17 571 7% 19 573

Apr. 1, 2006–Jun. 30, 2006 6% 17 571 7% 19 573

Jul. 1, 2006–Sep. 30, 2006 7% 19 573 8% 21 575

Oct. 1, 2006–Dec. 31, 2006 7% 19 573 8% 21 575

Jan. 1, 2007–Mar. 31, 2007 7% 19 573 8% 21 575

Apr. 1, 2007–Jun. 30, 2007 7% 19 573 8% 21 575

Jul. 1, 2007–Sep. 30, 2007 7% 19 573 8% 21 575

Oct. 1, 2007–Dec. 31, 2007 7% 19 573 8% 21 575

Jan. 1, 2008–Mar. 31, 2008 6% 65 619 7% 67 621

Apr. 1, 2008–Jun. 30, 2008 5% 63 617 6% 65 619

Jul. 1, 2008–Sep. 30, 2008 4% 61 615 5% 63 617

Oct. 1, 2008–Dec. 31, 2008 5% 63 617 6% 65 619

Jan. 1, 2009–Mar. 31, 2009 4% 13 567 5% 15 569

Apr. 1, 2009–Jun. 30, 2009 3% 11 565 4% 13 567

Jul. 1, 2009–Sep. 30, 2009 3% 11 565 4% 13 567

Oct. 1, 2009–Dec. 31, 2009 3% 11 565 4% 13 567

Jan. 1, 2010–Mar. 31, 2010 3% 11 565 4% 13 567

Apr. 1, 2010–Jun. 30, 2010 3% 11 565 4% 13 567

Jul. 1, 2010–Sep. 30, 2010 3% 11 565 4% 13 567

Oct. 1, 2010–Dec. 31, 2010 3% 11 565 4% 13 567

Jan. 1, 2011–Mar. 31, 2011 2% 9 563 3% 11 565

Apr. 1, 2011–Jun. 30, 2011 3% 11 565 4% 13 567

Jul. 1, 2011–Sep. 30, 2011 3% 11 565 4% 13 567

Oct. 1, 2011–Dec. 31, 2011 2% 9 563 3% 11 565

Jan. 1, 2012–Mar. 31, 2012 2% 57 611 3% 59 613

Apr. 1, 2012–Jun. 30, 2012 2% 57 611 3% 59 613

Jul. 1, 2012–Sep. 30, 2012 2% 57 611 3% 59 613

Oct. 1, 2012–Dec. 31, 2012 2% 57 611 3% 59 613

Jan. 1, 2013–Mar. 31, 2013 2% 9 563 3% 11 565

Apr. 1, 2013–Jun. 30, 2013 2% 9 563 3% 11 565

Jul. 1, 2013–Sep. 30, 2013 2% 9 563 3% 11 565

Oct. 1, 2013–Dec. 31, 2013 2% 9 563 3% 11 565

Jan. 1, 2014–Mar. 31, 2014 2% 9 563 3% 11 565

Apr. 1, 2014–Jun. 30, 2014 2% 9 563 3% 11 565

Jul. 1, 2014–Sep. 30, 2014 2% 9 563 3% 11 565

Oct. 1, 2014–Dec. 31, 2014 2% 9 563 3% 11 565

Jan. 1, 2015–Mar. 31, 2015 2% 9 563 3% 11 565

Apr. 1, 2015–Jun. 30, 2015 2% 9 563 3% 11 565

Jul. 1, 2015–Sep. 30, 2015 2% 9 563 3% 11 565

Oct. 1, 2015–Dec. 31, 2015 2% 9 563 3% 11 565

Jan. 1, 2016–Mar. 31, 2016 2% 57 611 3% 59 613

Apr. 1, 2016–Jun. 30, 2016 3% 59 613 4% 61 615

Jul. 1, 2016–Sep. 30, 2016 3% 59 613 4% 61 615

Oct. 1, 2016–Dec. 31, 2016 3% 59 613 4% 61 615

Jan. 1, 2017–Mar. 31, 2017 3% 11 565 4% 13 567

Apr. 1, 2017–Jun. 30, 2017 3% 11 565 4% 13 567

Jul. 1, 2017–Sep. 30, 2017 3% 11 565 4% 13 567

Oct. 1, 2017–Dec. 31, 2017 3% 11 565 4% 13 567

Jan. 1, 2018–Mar. 31, 2018 3% 11 565 4% 13 567

Apr. 1, 2018–Jun. 30, 2018 4% 13 567 5% 15 569

Jul. 1, 2018–Sep. 30, 2018 4% 13 567 5% 15 569

Oct. 1, 2018–Dec. 31, 2018 4% 13 567 5% 15 569

Jan. 1, 2019–Mar. 31, 2019 5% 15 569 6% 17 571

Apr. 1, 2019–Jun. 30, 2019 5% 15 569 6% 17 571

Jul. 1, 2019–Sep. 30, 2019 4% 13 567 5% 15 569

Oct. 1, 2019–Dec. 31, 2019 4% 13 567 5% 15 569

Jan. 1, 2020–Mar. 31, 2020 4% 61 615 5% 63 617

Apr. 1, 2020–Jun. 30, 2020 4% 61 615 5% 63 617

Jul. 1, 2020–Sep. 30, 2020 2% 57 611 3% 59 613

Oct. 1, 2020–Dec. 31, 2020 2% 57 611 3% 59 613

Jan. 1, 2021–Mar. 31, 2021 2% 9 563 3% 11 565

Apr. 1, 2021–Jun. 30, 2021 2% 9 563 3% 11 565

Jul. 1, 2021–Sep. 30, 2021 2% 9 563 3% 11 565

Oct. 1, 2021–Dec. 31, 2021 2% 9 563 3% 11 565

Jan. 1, 2022–Mar. 31, 2022 2% 9 563 3% 11 565

Apr. 1, 2022–Jun. 30, 2022 3% 11 565 4% 13 567

Jul. 1, 2022–Sep. 30, 2022 4% 13 567 5% 15 569

Oct. 1, 2022–Dec. 31, 2022 5% 15 569 6% 17 571

Jan. 1, 2023–Mar. 31, 2023 6% 17 571 7% 19 573

Apr. 1, 2023–Jun. 30, 2023 6% 17 571 7% 19 573

Jul. 1, 2023–Sep. 30, 2023 6% 17 571 7% 19 573

Oct. 1, 2023–Dec. 31, 2023 7% 19 573 8% 21 575

Jan. 1, 2024–Mar. 31, 2024 7% 67 621 8% 69 623

Apr. 1, 2024–Jun. 30, 2024 7% 67 621 8% 69 623

Jul. 1, 2024–Sep. 30, 2024 7% 67 621 8% 69 623

Oct. 1, 2024–Dec. 31, 2024 7% 67 621 8% 69 623

Jan. 1, 2025–Mar. 31, 2025 6% 17 571 7% 19 573

Apr. 1, 2025–Jun. 30, 2025 6% 17 571 7% 19 573

Jul. 1, 2025–Sep. 30, 2025 6% 17 571 7% 19 573

Oct. 1, 2025–Dec. 31, 2025 6% 17 571 7% 19 573

Jan. 1, 2026–Mar. 31, 2026 6% 17 571 7% 19 573

Apr. 1, 2026–Jun. 30, 2026 5% 15 569 6% 17 571

Jul. 1, 2026–Sep. 30, 2026 6% 17 571 7% 19 573

Oct. 1, 2026–Dec. 31, 2026 6% 17 571 7% 19 573

TABLE OF INTEREST RATES FOR LARGE CORPORATE UNDERPAYMENTS FROM JANUARY 1, 1991 – PRESENT

1995–1 C.B.

PERIOD RATE TABLE PG

Jan. 1, 1991–Mar. 31, 1991 13% 31 585

Apr. 1, 1991–Jun. 30, 1991 12% 29 583

Jul. 1, 1991–Sep. 30, 1991 12% 29 583

Oct. 1, 1991–Dec. 31, 1991 12% 29 583

Jan. 1, 1992–Mar. 31, 1992 11% 75 629

Apr. 1, 1992–Jun. 30, 1992 10% 73 627

Jul. 1, 1992–Sep. 30, 1992 10% 73 627

Oct. 1, 1992–Dec. 31, 1992 9% 71 625

Jan. 1, 1993–Mar. 31, 1993 9% 23 577

Apr. 1, 1993–Jun. 30, 1993 9% 23 577

Jul. 1, 1993–Sep. 30, 1993 9% 23 577

Oct. 1, 1993–Dec. 31, 1993 9% 23 577

Jan. 1, 1994–Mar. 31, 1994 9% 23 577

Apr. 1, 1994–Jun. 30, 1994 9% 23 577

Jul. 1, 1994–Sep. 30, 1994 10% 25 579

Oct. 1, 1994–Dec. 31, 1994 11% 27 581

Jan. 1, 1995–Jun. 30, 1995 11% 27 581

Apr. 1, 1995–Jun. 30, 1995 12% 29 583

Jul. 1, 1995–Sep. 30, 1995 11% 27 581

Oct. 1, 1995–Dec. 31, 1995 11% 27 581

Jan. 1, 1996–Mar. 31, 1996 11% 75 629

Apr. 1, 1996–Jun. 30, 1996 10% 73 627

Jul. 1, 1996–Sep. 30, 1996 11% 75 629

Oct. 1, 1996–Dec. 31, 1996 11% 75 629

Jan. 1, 1997–Mar. 31, 1997 11% 27 581

Apr. 1, 1997–Jun. 30, 1997 11% 27 581

Jul. 1, 1997–Sep. 30, 1997 11% 27 581

Oct. 1, 1997–Dec. 31, 1997 11% 27 581

Jan. 1, 1998–Mar. 31, 1998 11% 27 581

Apr. 1, 1998–Jun. 30, 1998 10% 25 579

Jul. 1, 1998–Sep. 30, 1998 10% 25 579

Oct. 1, 1998–Dec. 31, 1998 10% 25 579

Jan. 1, 1999–Mar. 31, 1999 9% 23 577

Apr. 1, 1999–Jun. 30, 1999 10% 25 579

Jul. 1, 1999–Sep. 30, 1999 10% 25 579

Oct. 1, 1999–Dec. 31, 1999 10% 25 579

Jan. 1, 2000–Mar. 31, 2000 10% 73 627

Apr. 1, 2000–Jun. 30, 2000 11% 75 629

Jul. 1, 2000–Sep. 30, 2000 11% 75 629

Oct. 1, 2000–Dec. 31, 2000 11% 75 629

Jan. 1, 2001–Mar. 31, 2001 11% 27 581

Apr. 1, 2001–Jun. 30, 2001 10% 25 579

Jul. 1, 2001–Sep. 30, 2001 9% 23 577

Oct. 1, 2001–Dec. 31, 2001 9% 23 577

Jan. 1, 2002–Mar. 31, 2002 8% 21 575

Apr. 1, 2002–Sep. 30, 2002 8% 21 575

Jul. 1, 2002–Sep. 30, 2002 8% 21 575

Oct. 1, 2002–Dec. 31, 2002 8% 21 575

Jan. 1, 2003–Mar. 31, 2003 7% 19 573

Apr. 1, 2003–Jun. 30, 2003 7% 19 573

Jul. 1, 2003–Sep. 30, 2003 7% 19 573

Oct. 1, 2003–Dec. 31, 2003 6% 17 571

Jan. 1, 2004–Mar. 31, 2004 6% 65 619

Apr. 1, 2004–Jun. 30, 2004 7% 67 621

Jul. 1, 2004–Sep. 30, 2004 6% 65 619

Oct. 1, 2004–Dec. 31, 2004 7% 67 621

Jan. 1, 2005–Mar. 31, 2005 7% 19 573

Apr. 1, 2005–Jun. 30, 2005 8% 21 575

Jul. 1, 2005–Sep. 30, 2005 8% 21 575

Oct. 1, 2005–Dec. 31, 2005 9% 23 577

Jan. 1, 2006–Mar. 31, 2006 9% 23 577

Apr. 1, 2006–Jun. 30, 2006 9% 23 577

Jul. 1, 2006–Sep. 30, 2006 10% 25 579

Oct. 1, 2006–Dec. 31, 2006 10% 25 579

Jan. 1, 2007–Mar. 31, 2007 10% 25 579

Apr. 1, 2007–Jun. 30, 2007 10% 25 579

Jul. 1, 2007–Sep. 30, 2007 10% 25 579

Oct. 1, 2007–Dec. 31, 2007 10% 25 579

Jan. 1, 2008–Mar. 31, 2008 9% 71 625

Apr. 1, 2008–Sep. 30, 2008 8% 69 623

Jul. 1, 2008–Sep. 30, 2008 7% 67 621

Oct. 1, 2008–Dec. 31, 2008 8% 69 623

Jan. 1, 2009–Mar. 31, 2009 7% 19 573

Apr. 1, 2009–Jun. 30, 2009 6% 17 571

Jul. 1, 2009–Sep. 30, 2009 6% 17 571

Oct. 1, 2009–Dec. 31, 2009 6% 17 571

Jan. 1, 2010–Mar. 31, 2010 6% 17 571

Apr. 1, 2010–Jun. 30, 2010 6% 17 571

Jul. 1, 2010–Sep. 30, 2010 6% 17 571

Oct. 1, 2010–Dec. 31, 2010 6% 17 571

Jan. 1, 2011–Mar. 31, 2011 5% 15 569

Apr. 1, 2011–Jun. 30, 2011 6% 17 571

Jul. 1, 2011–Sep. 30, 2011 6% 17 571

Oct. 1, 2011–Dec. 31, 2011 5% 15 569

Jan. 1, 2012–Mar. 31, 2012 5% 63 617

Apr. 1, 2012–Jun. 30, 2012 5% 63 617

Jul. 1, 2012–Sep. 30, 2012 5% 63 617

Oct. 1, 2012–Dec. 31, 2012 5% 63 617

Jan. 1, 2013–Mar. 31, 2013 5% 15 569

Apr. 1, 2013–Jun. 30, 2013 5% 15 569

Jul. 1, 2013–Sep. 30, 2013 5% 15 569

Oct. 1, 2013–Dec. 31, 2013 5% 15 569

Jan. 1, 2014–Mar. 31, 2014 5% 15 569

Apr. 1, 2014–Jun. 30, 2014 5% 15 569

Jul. 1, 2014–Sep. 30, 2014 5% 15 569

Oct. 1, 2014–Dec. 31, 2014 5% 15 569

Jan. 1, 2015–Mar. 31, 2015 5% 15 569

Apr. 1, 2015–Jun. 30, 2015 5% 15 569

Jul. 1, 2015–Sep. 30, 2015 5% 15 569

Oct. 1, 2015–Dec. 31, 2015 5% 15 569

Jan. 1, 2016–Mar. 31, 2016 5% 63 617

Apr. 1, 2016–Jun. 30, 2016 6% 65 619

Jul. 1, 2016–Sep. 30, 2016 6% 65 619

Oct. 1, 2016–Dec. 31, 2016 6% 65 619

Jan. 1, 2017–Mar. 31, 2017 6% 17 571

Apr. 1, 2017–Jun. 30, 2017 6% 17 571

Jul. 1, 2017–Sep. 30, 2017 6% 17 571

Oct. 1, 2017–Dec. 31, 2017 6% 17 571

Jan. 1, 2018–Mar. 31, 2018 6% 17 571

Apr. 1, 2018–Jun. 30, 2018 7% 19 573

Jul. 1, 2018–Sep. 30, 2018 7% 19 573

Oct. 1, 2018–Dec. 31, 2018 7% 19 573

Jan. 1, 2019–Mar. 31, 2019 8% 21 575

Apr. 1, 2019–Jun. 30, 2019 8% 21 575

Jul. 1, 2019–Sep. 30, 2019 7% 19 573

Oct. 1, 2019–Dec. 31, 2019 7% 19 573

Jan. 1, 2020–Mar. 31, 2020 7% 67 621

Apr. 1, 2020–Jun. 30, 2020 7% 67 621

Jul. 1, 2020–Sep. 30, 2020 5% 63 617

Oct. 1, 2020–Dec. 31, 2020 5% 63 617

Jan. 1, 2021–Mar. 31, 2021 5% 15 569

Apr. 1, 2021–Jun. 30, 2021 5% 15 569

Jul. 1, 2021–Sep. 30, 2021 5% 15 569

Oct. 1, 2021–Dec. 31, 2021 5% 15 569

Jan. 1, 2022–Mar. 31, 2022 5% 15 569

Apr. 1, 2022–Jun. 30, 2022 6% 17 571

Jul. 1, 2022–Sep. 30, 2022 7% 19 573

Oct. 1, 2022–Dec. 31, 2022 8% 21 575

Jan. 1, 2023–Mar. 31, 2023 9% 23 577

Apr. 1, 2023–Jun. 30, 2023 9% 23 577

Jul. 1, 2023–Sep. 30, 2023 9% 23 577

Oct. 1, 2023–Dec. 31, 2023 10% 25 579

Jan. 1, 2024–Mar. 31, 2024 10% 73 627

Apr. 1, 2024–Jun. 30, 2024 10% 73 627

Jul. 1, 2024–Sep. 30, 2024 10% 73 627

Oct. 1, 2024–Dec. 31, 2024 10% 73 627

Jan. 1, 2025–Mar. 31, 2025 9% 23 577

Apr. 1, 2025–Jun. 30, 2025 9% 23 577

Jul. 1, 2025–Sep. 30, 2025 9% 23 577

Oct. 1, 2025–Dec. 31, 2025 9% 23 577

Jan. 1, 2026–Mar. 31, 2026 9% 23 577

Apr. 1, 2026–Jun. 30, 2026 8% 21 575

Jul. 1, 2026–Sep. 30, 2026 9% 23 577

Oct. 1, 2026–Dec. 31, 2026 9% 23 577

TABLE OF INTEREST RATES FOR CORPORATE OVERPAYMENTS EXCEEDING $10,000 FROM JANUARY 1, 1995 – PRESENT

1995–1 C.B.

PERIOD RATE TABLE PG

Jan. 1, 1995–Mar. 31, 1995 6.5% 18 572

Apr. 1, 1995–Jun. 30, 1995 7.5% 20 574

Jul. 1, 1995–Sep. 30, 1995 6.5% 18 572

Oct. 1, 1995–Dec. 31, 1995 6.5% 18 572

Jan. 1, 1996–Mar. 31, 1996 6.5% 66 620

Apr. 1, 1996–Jun. 30, 1996 5.5% 64 618

Jul. 1, 1996–Sep. 30, 1996 6.5% 66 620

Oct. 1, 1996–Dec. 31, 1996 6.5% 66 620

Jan. 1, 1997–Mar. 31, 1997 6.5% 18 572

Apr. 1, 1997–Jun. 30, 1997 6.5% 18 572

Jul. 1, 1997–Sep. 30, 1997 6.5% 18 572

Oct. 1, 1997–Dec. 31, 1997 6.5% 18 572

Jan. 1, 1998–Mar. 31, 1998 6.5% 18 572

Apr. 1, 1998–Jun. 30, 1998 5.5% 16 570

Jul. 1, 1998–Sep. 30, 1998 5.5% 16 570

Oct. 1, 1998–Dec. 31, 1998 5.5% 16 570

Jan. 1, 1999–Mar. 31, 1999 4.5% 14 568

Apr. 1, 1999–Sep. 30, 1999 5.5% 16 570

Jul. 1, 1999–Sep. 30, 1999 5.5% 16 570

Oct. 1, 1999–Dec. 31, 1999 5.5% 16 570

Jan. 1, 2000–Mar. 31, 2000 5.5% 64 618

Apr. 1, 2000–Jun. 30, 2000 6.5% 66 620

Jul. 1, 2000–Sep. 30, 2000 6.5% 66 620

Oct. 1, 2000–Dec. 31, 2000 6.5% 66 620

Jan. 1, 2001–Mar. 31, 2001 6.5% 18 572

Apr. 1, 2001–Jun. 30, 2001 5.5% 16 570

Jul. 1, 2001–Sep. 30, 2001 4.5% 14 568

Oct. 1, 2001–Dec. 31, 2001 4.5% 14 568

Jan. 1, 2002–Mar. 31, 2002 3.5% 12 566

Apr. 1, 2002–Jun. 30, 2002 3.5% 12 566

Jul. 1, 2002–Sep. 30, 2002 3.5% 12 566

Oct. 1, 2002–Dec. 31, 2002 3.5% 12 566

Jan. 1, 2003–Mar. 31, 2003 2.5% 10 564

Apr. 1, 2003–Jun. 30, 2003 2.5% 10 564

Jul. 1, 2003–Sep. 30, 2003 2.5% 10 564

Oct. 1, 2003–Dec. 31, 2003 1.5% 8 562

Jan. 1, 2004–Mar. 31, 2004 1.5% 56 610

Apr. 1, 2004–Jun. 30, 2004 2.5% 58 612

Jul. 1, 2004–Sep. 30, 2004 1.5% 56 610

Oct. 1, 2004–Dec. 31, 2004 2.5% 58 612

Jan. 1, 2005–Mar. 31, 2005 2.5% 10 564

Apr. 1, 2005–Jun. 30, 2005 3.5% 12 566

Jul. 1, 2005–Sep. 30, 2005 3.5% 12 566

Oct. 1, 2005–Dec. 31, 2005 4.5% 14 568

Jan. 1, 2006–Mar. 31, 2006 4.5% 14 568

Apr. 1, 2006–Jun. 30, 2006 4.5% 14 568

Jul. 1, 2006–Sep. 30, 2006 5.5% 16 570

Oct. 1, 2006–Dec. 31, 2006 5.5% 16 570

Jan. 1, 2007–Mar. 31, 2007 5.5% 16 570

Apr. 1, 2007–Jun. 30, 2007 5.5% 16 570

Jul. 1, 2007–Sep. 30, 2007 5.5% 16 570

Oct. 1, 2007–Dec. 31, 2007 5.5% 16 570

Jan. 1, 2008–Mar. 31, 2008 4.5% 62 616

Apr. 1, 2008–Jun. 30, 2008 3.5% 60 614

Jul. 1, 2008–Sep. 30, 2008 2.5% 58 612

Oct. 1, 2008–Dec. 31, 2008 3.5% 60 614

Jan. 1, 2009–Mar. 31, 2009 2.5% 10 564

Apr. 1, 2009–Jun. 30, 2009 1.5% 8 562

Jul. 1, 2009–Sep. 30, 2009 1.5% 8 562

Oct. 1, 2009–Dec. 31, 2009 1.5% 8 562

Jan. 1, 2010–Mar. 31, 2010 1.5% 8 562

Apr. 1, 2010–Jun. 30, 2010 1.5% 8 562

Jul. 1, 2010–Sep. 30, 2010 1.5% 8 562

Oct. 1, 2010–Dec. 31, 2010 1.5% 8 562

Jan. 1, 2011–Mar. 31, 2011 0.5%*

Apr. 1, 2011–Jun. 30, 2011 1.5% 8 562

Jul. 1, 2011–Sep. 30, 2011 1.5% 8 562

Oct. 1, 2011–Dec. 31, 2011 0.5%*

Jan. 1, 2012–Mar. 31, 2012 0.5%*

Apr. 1, 2012–Jun. 30, 2012 0.5%*

Jul. 1, 2012–Sep. 30, 2012 0.5%*

Oct. 1, 2012–Dec. 31, 2012 0.5%*

Jan. 1, 2013–Mar. 31, 2013 0.5%*

Apr. 1, 2013–Jun. 30, 2013 0.5%*

Jul. 1, 2013–Sep. 30, 2013 0.5%*

Oct. 1, 2013–Dec. 31, 2013 0.5%*

Jan. 1, 2014–Mar. 31, 2014 0.5%*

Apr. 1, 2014–Jun. 30, 2014 0.5%*

Jul. 1, 2014–Sep. 30, 2014 0.5%*

Oct. 1, 2014–Dec. 31, 2014 0.5%*

Jan. 1, 2015–Mar. 31, 2015 0.5%*

Apr. 1, 2015–Jun. 30, 2015 0.5%*

Jul. 1, 2015–Sep. 30, 2015 0.5%*

Oct. 1, 2015–Dec. 31, 2015 0.5%*

Jan. 1, 2016–Mar. 31, 2016 0.5%*

Apr. 1, 2016–Jun. 30, 2016 1.5% 56 610

Jul. 1, 2016–Sep. 30, 2016 1.5% 56 610

Oct. 1, 2016–Dec. 31, 2016 1.5% 56 610

Jan. 1, 2017–Mar. 31, 2017 1.5% 8 562

Apr. 1, 2017–Jun. 30, 2017 1.5% 8 562

Jul. 1, 2017–Sep. 30, 2017 1.5% 8 562

Oct. 1, 2017–Dec. 31, 2017 1.5% 8 562

Jan. 1, 2018–Mar. 31, 2018 1.5% 8 562

Apr. 1, 2018–Jun. 30, 2018 2.5% 10 564

Jul. 1, 2018–Sep. 30, 2018 2.5% 10 564

Oct. 1, 2018–Dec. 31, 2018 2.5% 10 564

Jan. 1, 2019–Mar. 31, 2019 3.5% 12 566

Apr. 1, 2019–Jun. 30, 2019 3.5% 12 566

Jul. 1, 2019–Sep. 30, 2019 2.5% 10 564

Oct. 1, 2019–Dec. 31, 2019 2.5% 10 564

Jan. 1, 2020–Mar. 31, 2020 2.5% 58 612

Apr. 1, 2020–Jun. 30, 2020 2.5% 58 612

Jul. 1, 2020–Sep. 30, 2020 0.5%*

Oct. 1, 2020–Dec. 31, 2020 0.5%*

Jan. 1, 2021–Mar. 31, 2021 0.5%*

Apr. 1, 2021–Jun. 30, 2021 0.5%*

Jul. 1, 2021–Sep. 30, 2021 0.5%*

Oct. 1, 2021–Dec. 31, 2021 0.5%*

Jan. 1, 2022–Mar. 31, 2022 0.5%*

Apr. 1, 2022–Jun. 30, 2022 1.5% 8 562

Jul. 1, 2022–Sep. 30, 2022 2.5% 10 564

Oct. 1, 2022–Dec. 31, 2022 3.5% 12 566

Jan. 1, 2023–Mar. 31, 2023 4.5% 14 568

Apr. 1, 2023–Jun. 30, 2023 4.5% 14 568

Jul. 1, 2023–Sep. 30, 2023 4.5% 14 568

Oct. 1, 2023–Dec. 31, 2023 5.5% 16 570

Jan. 1, 2024–Mar. 31, 2024 5.5% 64 618

Apr. 1, 2024–Jun. 30, 2024 5.5% 64 618

Jul. 1, 2024–Sep. 30, 2024 5.5% 64 618

Oct. 1, 2024–Dec. 31, 2024 5.5% 64 618

Jan. 1, 2025–Mar. 31, 2025 4.5% 14 568

Apr. 1, 2025–Jun. 30, 2025 4.5% 14 568

Jul. 1, 2025–Sep. 30, 2025 4.5% 14 568

Oct. 1, 2025–Dec. 31, 2025 4.5% 14 568

Jan. 1, 2026–Mar. 31, 2026 4.5% 14 568

Apr. 1, 2026–Jun. 30, 2026 3.5% 12 566

Jul. 1, 2026–Sep. 30, 2026 4.5% 14 568

Oct. 1, 2026–Dec. 31, 2026 4.5% 14 568

* The asterisk reflects the interest factors for daily compound interest for annual rates of 0.5 percent published in Appendix A of this Revenue Ruling.