Notice2026-09871
Quarterly IRS Interest Rates Used in Calculating Interest on Overdue Accounts and Refunds of Customs Duties
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
May 18, 2026
Issuing agencies
Homeland Security DepartmentU.S. Customs and Border Protection
Abstract
This notice advises the public that the quarterly Internal Revenue Service interest rates used to calculate interest on overdue accounts (underpayments) and refunds (overpayments) of customs duties will decrease from the previous quarter. For the calendar quarter beginning April 1, 2026, the interest rate for underpayments will be 6 percent for both corporations and non-corporations. The interest rate for overpayments will be 6 percent for non-corporations and 5 percent for corporations. This notice is published for the convenience of the importing public and U.S. Customs and Border Protection personnel.
Full Text
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<title>Federal Register, Volume 91 Issue 95 (Monday, May 18, 2026)</title>
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[Federal Register Volume 91, Number 95 (Monday, May 18, 2026)]
[Notices]
[Pages 28601-28602]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-09871]
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DEPARTMENT OF HOMELAND SECURITY
U.S. Customs and Border Protection
Quarterly IRS Interest Rates Used in Calculating Interest on
Overdue Accounts and Refunds of Customs Duties
AGENCY: U.S. Customs and Border Protection, Department of Homeland
Security.
ACTION: General notice.
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SUMMARY: This notice advises the public that the quarterly Internal
Revenue Service interest rates used to calculate interest on overdue
accounts (underpayments) and refunds (overpayments) of customs duties
will decrease from the previous quarter. For the calendar quarter
beginning April 1, 2026, the interest rate for underpayments will be 6
percent for both corporations and non-corporations. The interest rate
for overpayments will be 6 percent for non-corporations and 5 percent
for corporations. This notice is published for the convenience of the
importing public and U.S. Customs and Border Protection personnel.
DATES: The rates announced in this notice are applicable as of April 1,
2026.
FOR FURTHER INFORMATION CONTACT: Bruce Ingalls, Revenue Division,
Collection Refunds & Analysis Branch, 8899 E. 56th Street, Mail Stop
203J, Indianapolis, IN 46249; telephone (317) 298-1107.
SUPPLEMENTARY INFORMATION:
Background
Pursuant to 19 U.S.C. 1505 and Treasury Decision 85-93, published
in the Federal Register on May 29, 1985 (50 FR 21832), the interest
rate paid on applicable overpayments or underpayments of customs duties
must be in accordance with the Internal Revenue Code rate established
under 26 U.S.C. 6621 and 6622. Section 6621 provides different interest
rates applicable to overpayments: one for corporations and one for non-
corporations.
The interest rates are based on the Federal short-term rate and
determined by the Internal Revenue Service (IRS) on behalf of the
Secretary of the Treasury on a quarterly basis. The rates effective for
a quarter are determined during the first-month period of the previous
quarter.
In Revenue Ruling 2026-5, the IRS determined the rates of interest
for the calendar quarter beginning April 1, 2026, and ending on June
30, 2026. The interest rate paid to the Treasury for underpayments will
be the Federal short-term rate (3%) plus three percentage points (3%)
for a total of six percent (6%) for both corporations and non-
corporations. For overpayments made by non-corporations, the rate is
the Federal short-term rate (3%) plus three percentage points (3%) for
a total of six percent (6%). For corporate overpayments, the rate is
the Federal short-term rate (3%) plus two percentage points (2%) for a
total of five percent (5%). These interest rates used to calculate
interest on overdue accounts (underpayments) and refunds (overpayments)
of customs duties will decrease from the previous quarter. These
interest rates are subject to change for the calendar quarter beginning
July 1, 2026, and ending on September 30, 2026.
For the convenience of the importing public and U.S. Customs and
Border Protection personnel, the following list of IRS interest rates
used, covering the period from July of 1974 to date, to calculate
interest on overdue accounts and refunds of customs duties, is
published in summary format.
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Corporate Overpay-
Beginning date Ending date Underpayments Overpayments ments (Eff. 1-1-
(percent) (percent) 99) (percent)
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070174.............................. 063075 6 6
070175.............................. 013176 9 9
020176.............................. 013178 7 7
020178.............................. 013180 6 6
020180.............................. 013182 12 12
020182.............................. 123182 20 20
010183.............................. 063083 16 16
070183.............................. 123184 11 11
010185.............................. 063085 13 13
070185.............................. 123185 11 11
010186.............................. 063086 10 10
070186.............................. 123186 9 9
010187.............................. 093087 9 8
100187.............................. 123187 10 9
010188.............................. 033188 11 10
040188.............................. 093088 10 9
100188.............................. 033189 11 10
040189.............................. 093089 12 11
100189.............................. 033191 11 10
040191.............................. 123191 10 9
010192.............................. 033192 9 8
040192.............................. 093092 8 7
100192.............................. 063094 7 6
070194.............................. 093094 8 7
100194.............................. 033195 9 8
040195.............................. 063095 10 9
070195.............................. 033196 9 8
[[Page 28602]]
040196.............................. 063096 8 7
070196.............................. 033198 9 8
040198.............................. 123198 8 7
010199.............................. 033199 7 7 6
040199.............................. 033100 8 8 7
040100.............................. 033101 9 9 8
040101.............................. 063001 8 8 7
070101.............................. 123101 7 7 6
010102.............................. 123102 6 6 5
010103.............................. 093003 5 5 4
100103.............................. 033104 4 4 3
040104.............................. 063004 5 5 4
070104.............................. 093004 4 4 3
100104.............................. 033105 5 5 4
040105.............................. 093005 6 6 5
100105.............................. 063006 7 7 6
070106.............................. 123107 8 8 7
010108.............................. 033108 7 7 6
040108.............................. 063008 6 6 5
070108.............................. 093008 5 5 4
100108.............................. 123108 6 6 5
010109.............................. 033109 5 5 4
040109.............................. 123110 4 4 3
010111.............................. 033111 3 3 2
040111.............................. 093011 4 4 3
100111.............................. 033116 3 3 2
040116.............................. 033118 4 4 3
040118.............................. 123118 5 5 4
010119.............................. 063019 6 6 5
070119.............................. 063020 5 5 4
070120.............................. 033122 3 3 2
040122.............................. 063022 4 4 3
070122.............................. 093022 5 5 4
100122.............................. 123122 6 6 5
010123.............................. 093023 7 7 6
100123.............................. 123124 8 8 7
010125.............................. 033126 7 7 6
040126.............................. 063026 6 6 5
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Jeffrey Caine,
Chief Financial Officer, U.S. Customs and Border Protection.
[FR Doc. 2026-09871 Filed 5-15-26; 8:45 am]
BILLING CODE 9111-14-P
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</html>Indexed from Federal Register on May 18, 2026.
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