Internal Revenue Bulletin:  2013-13 

March 25, 2013 

Rev. Rul. 2013-6


Table of Contents

Interest rates: underpayment and overpayments. The rates for interest determined under section 6621 of the Code for the calendar quarter beginning April 1, 2013, will be 3 percent for overpayments (2 percent in the case of a corporation), 3 percent for the underpayments, and 5 percent for large corporate underpayments. The rate of interest paid on the portion of a corporate overpayment exceeding $10,000 will be 0.5 percent.

Interest rates: underpayment and overpayments. The rates for interest determined under section 6621 of the Code for the calendar quarter beginning April 1, 2013, will be 3 percent for overpayments (2 percent in the case of a corporation), 3 percent for the underpayments, and 5 percent for large corporate underpayments. The rate of interest paid on the portion of a corporate overpayment exceeding $10,000 will be 0.5 percent.

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)(2)(B) provides that in determining the addition to tax under section 6654 for failure to pay estimated tax for any taxable year, the federal short-term rate that applies during the third month following the taxable year also applies during the first 15 days of the fourth month following the taxable year. 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 January 2013 is the rate published in Revenue Ruling 2013-3, 2013-8 I.R.B. 500, to take effect beginning February 1, 2013. The federal short-term rate, rounded to the nearest full percent, based on daily compounding determined during the month of January 2013 is 0 percent. Accordingly, an overpayment rate of 3 percent (2 percent in the case of a corporation) and an underpayment rate of 3 percent are established for the calendar quarter beginning April 1, 2013. The overpayment rate for the portion of a corporate overpayment exceeding $10,000 for the calendar quarter beginning April 1, 2013, is 0.5 percent. The underpayment rate for large corporate underpayments for the calendar quarter beginning April 1, 2013, is 5 percent. These rates apply to amounts bearing interest during that calendar quarter.

The 3 percent rate also applies to estimated tax underpayments for the second calendar quarter in 2013.

Interest factors for daily compound interest for annual rates of 0.5 percent are published in Appendix A of this Revenue Ruling. Interest factors for daily compound interest for annual rates of 2 percent, 3 percent and 5 percent are published in Tables 9, 11, and 15 of Rev. Proc. 95-17, 1995-1 C.B. 563, 565, and 569.

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 Deborah Colbert-James of the Office of Associate Chief Counsel (Procedure & Administration). For further information regarding this revenue ruling, contact Ms. Gulas at (202) 622-4570 (not a toll-free call).

APPENDIX A

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—Jun. 30, 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 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
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. 31, 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
TABLE OF INTEREST RATES FOR
LARGE CORPORATE UNDERPAYMENTS
FROM JANUARY 1, 1991 — PRESENT
  1995-1 C.B.
  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—Mar. 31, 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—Jun. 30, 2002 8% 21 575
Jul. 1, 2002—Sep. 30, 2002 8% 21 575
Oct. 1, 2002—Dec. 30, 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—Jun. 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
TABLE OF INTEREST RATES FOR CORPORATE
OVERPAYMENTS EXCEEDING $10,000
FROM JANUARY 1, 1995 — PRESENT
  1995-1 C.B.
  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—Jun. 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%*    

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