Alabama — 6% default rate
Default rate (contract silent): 6%
Written-contract cap: Conditional cap · cap details · table row
Statute: Ala. Code §§ 8-8-1, 8-8-5 verified 2026-08-19
Alabama late fee calculator → Calculate with Alabama's rate ↑
Need to chase it? Generate a formal demand letter with this calculation — statute cited, interest included →
| State | If the contract is silent | Written-contract cap | Statute |
|---|---|---|---|
| Alabama verified 2026-08-19 | 6% Default when there is no written rate; runs from the day payment was due. | Conditional cap 8% (deals under $2,000) Cap details for Alabama → | Ala. Code §§ 8-8-1, 8-8-5 Statute text
|
| Alaska verified 2026-08-19 | 10.5% Statutory legal rate on money after it is due when no written rate is set. | Conditional cap greater of 10% or Fed 12th-District rate +5 pts (deals $25,000 or less) Cap details for Alaska → | AS 45.45.010 Statute text
|
| Arizona verified 2026-08-19 | 10% Legal rate when no rate is agreed in writing. | No statutory cap Cap details for Arizona → | A.R.S. §§ 44-1201, 44-1202 Statute text
|
| Arkansas verified 2026-08-19 | 6% Default when the contract is silent; in litigation, court-awarded interest follows the contract rate or Fed primary credit rate +2%, whichever is greater. | Hard cap 17% (constitutional) Cap details for Arkansas → | Ark. Const. amend. 89; Ark. Code Ann. § 4-57-101(d) Statute text
|
| California verified 2026-08-19 | 10% Default on contract debts after breach when the contract is silent; runs from the date a fixed sum became due. | Conditional cap higher of 10% or FRBSF rate +5 pts (if a 'loan or forbearance') Cap details for California → | Cal. Civ. Code § 3289(b); Cal. Const. art. XV, § 1 Statute text
|
| Colorado verified 2026-08-19 | 8% Compounded annually; runs from when the money became due on instruments, settled accounts, and money due on account. | Hard cap 45% Cap details for Colorado → | C.R.S. §§ 5-12-101 to -103 Statute text
|
| Connecticut verified 2026-08-21 | 10% Court-awarded (discretionary) on money wrongfully withheld, from when it became payable; absent any agreement to the contrary the legal rate is 8% a year, and interest at the legal rate accrues as an addition to the debt from the date the debt matures. | Conditional cap 12% (debt $10k or less) Cap details for Connecticut → | Conn. Gen. Stat. §§ 37-1, 37-3a, 37-4, 37-9 Statute text
|
| Delaware verified 2026-10-01 | Variable — 9.00% (since Sep 17, 2026) Fed discount rate +5 pts, fixed as of when interest became due; simple interest on invoice debts. | No statutory cap Cap details for Delaware → | 6 Del. C. §§ 2301, 2306 Statute text
|
| District of Columbia verified 2026-08-19 | 6% Default absent an expressed rate; on liquidated debts interest runs from the due date. | Conditional cap 24% (deals $2,500 or less) Cap details for District of Columbia → | D.C. Code §§ 28-3301, 28-3302, 15-108 Statute text
|
| Florida verified 2026-09-25 | Variable — 7.87% (Oct–Dec 2026) (figure read from the Brevard County Clerk of the Court's copy of the CFO rate table) Set quarterly by the state CFO (NY Fed discount 12-month average +400 bps); applies when the contract is silent. | Hard cap 18% Cap details for Florida → | Fla. Stat. §§ 687.01, 55.03, 687.02–.03 Statute text
|
| Georgia verified 2026-09-25 | 7% Legal rate on liquidated demands when no written rate; on commercial accounts, O.C.G.A. § 7-4-16 lets the owner charge up to 1 1/2 percent per month (18% a year simple) on the portion that has been due and payable for 30 days or more. | Conditional cap 16% (principal $3,000 or less) Cap details for Georgia → | O.C.G.A. §§ 7-4-2, 7-4-16 Statute text
|
| Hawaii verified 2026-08-19 | 10% Legal rate when there is no express written contract fixing a different rate. | No statutory cap Cap details for Hawaii → | HRS §§ 478-2, 478-4(c) Statute text
|
| Idaho verified 2026-08-19 | 12% Legal rate absent a written rate; fixed-sum invoices accrue from the due date; open accounts start 3 months after the last item. | No statutory cap Cap details for Idaho → | Idaho Code §§ 28-22-104, 28-42-201 Statute text
|
| Illinois verified 2026-08-19 | 5% Statutory legal rate on written instruments and money wrongfully withheld when no rate is agreed. | No statutory cap Cap details for Illinois → | 815 ILCS 205/2, 205/4 Statute text
|
| Indiana verified 2026-08-19 | 8% Legal rate on overdue contract debts when the contract specifies no rate. | No statutory cap Cap details for Indiana → | Ind. Code §§ 24-4.6-1-102, -103 Statute text
|
| Iowa verified 2026-08-19 | 5% Legal rate absent a written agreement; open accounts start 6 months after the last item. A separate variable rate governs once suit is filed. | No statutory cap Cap details for Iowa → | Iowa Code § 535.2 Statute text
|
| Kansas verified 2026-08-19 | 10% Legal rate for money after it becomes due when no other rate is agreed; no waiting period or demand requirement. | No statutory cap Cap details for Kansas → | K.S.A. 16-201, 16-207 Statute text
|
| Kentucky verified 2026-08-19 | 8% Legal rate, recoverable after default until judgment when the contract names no rate. | Conditional cap 19% (non-entity, $15,000 or less) Cap details for Kentucky → | KRS 360.010 Statute text
|
| Louisiana verified 2026-08-19 | Variable — 7.50% (2026) Judicial interest, reset each calendar year by the Commissioner of Financial Institutions (Fed discount rate on first business day of October +3.25 pts); runs from the time the sum was due. | No statutory cap Cap details for Louisiana → | La. R.S. 9:3500, 13:4202; Civ. Code art. 2000 Statute text
|
| Maine verified 2026-08-19 | Variable — 6.51% (2026) When the contract is silent: 1-year U.S. Treasury bill rate +3 pts (prejudgment; T-bill +6 pts after judgment). The rate is fixed for the whole year at the Fed's weekly average 1-year constant maturity Treasury yield for the last full week of the PRIOR calendar year (not the current week's H.15 figure). For 2026 the anchor is the week ending December 26, 2025, whose weekly average was 3.51%, so the 2026 figures are 6.51% before judgment and 9.51% after. | No statutory cap Cap details for Maine → | 14 M.R.S. §§ 1602-B, 1602-C; 9-A M.R.S. § 1-202(1) Statute text
|
| Maryland verified 2026-08-19 | 6% Constitutional legal rate; recoverable as of right on liquidated sums from the date payment was due. | Hard cap 6% (8% with signed agreement) Cap details for Maryland → | Md. Const. art. III, § 57; Com. Law §§ 12-102, 12-103 Statute text
|
| Massachusetts verified 2026-08-21 | 6% Default legal rate when there is no agreement or provision of law for a different rate; a higher rate is recoverable in a suit only if the agreement to pay it is in writing. Separately, in contract actions the clerk of the court adds prejudgment interest at the contract rate, if established, or at 12% from the date of breach or demand. | Hard cap 20% criminal (all-in) Cap details for Massachusetts → | MGL c.231 § 6C; c.107 § 3; c.271 § 49 Statute text
|
| Michigan verified 2026-08-19 | No automatic rate — 4.959% (Jul–Dec 2026) If the contract is silent, no contractual interest accrues before suit; once a complaint is filed, the judgment-interest formula applies (5-yr Treasury auction average +1 pt, reset semi-annually, compounded annually). | Hard cap 25% criminal Cap details for Michigan → | MCL 438.31, 438.61, 450.1275; MCL 600.6013 Statute text
|
| Minnesota verified 2026-08-19 | 6% Legal rate when no rate is contracted in writing. Once a claim/suit is noticed, a separate court-set rate applies (2026: 4% up to $50,000; 10% above). | Conditional cap Fed 90-day CP discount +4.5% (under $100k) Cap details for Minnesota → | Minn. Stat. §§ 334.01, 334.011; § 549.09 Statute text
|
| Mississippi verified 2026-08-19 | 8% Legal rate on notes, accounts and contracts when no rate is agreed. | Conditional cap any written rate over $2,000 Cap details for Mississippi → | Miss. Code Ann. § 75-17-1 Statute text
|
| Missouri verified 2026-08-19 | 9% On written contracts, from the due date; on open accounts, after the debt is due AND payment has been demanded. | No statutory cap Cap details for Missouri → | RSMo 408.020, 408.030, 408.035 Statute text
|
| Montana verified 2026-08-19 | 10% Legal rate after the money becomes due (instruments, accounts stated, settled accounts) when no written rate is fixed. | Hard cap 15% (floor) Cap details for Montana → | MCA 31-1-106, 31-1-107 Statute text
|
| Nebraska verified 2026-08-19 | 12% On written instruments and settled accounts; on unsettled accounts each charge bears interest from the billing date unless paid within 30 days. | No statutory cap Cap details for Nebraska → | Neb. Rev. Stat. §§ 45-104, 45-101.03, 45-101.04 Statute text
|
| Nevada verified 2026-08-19 | Variable — 8.75% (Jul–Dec 2026) Prime rate at the largest bank in Nevada +2 pts, as ascertained by the Commissioner of Financial Institutions on the January 1 or July 1 immediately preceding the date of the transaction; it runs on money from the time it becomes due. | No statutory cap Cap details for Nevada → | NRS 99.040, 99.050 Statute text
|
| New Hampshire verified 2026-08-21 | 10% Rate recovered in litigation (pre- and post-judgment): 26-week T-bill discount rate +2 pts, set annually by the State Treasurer. A fixed 10% residual default applies to business transactions outside that context. | No statutory cap Cap details for New Hampshire → | RSA 336:1 Statute text
|
| New Jersey verified 2026-08-21 | Variable — 4.5% / 6.5% (2026) Post-judgment interest under Court Rule 4:42-11(a): the annual rate equals the average rate of return of the State of New Jersey Cash Management Fund (State accounts) for the preceding fiscal year, to the nearest whole or one-half percent, but not less than 0.25%; judgments exceeding the Special Civil Part monetary limit ($20,000) bear that rate plus 2% per annum. Set annually by AOC notice. | Hard cap 50% criminal (entity) Cap details for New Jersey → | N.J. Ct. R. 4:42-11; N.J.S.A. 31:1-1, 31:1-6; 2C:21-19 Statute text
|
| New Mexico verified 2026-08-19 | Up to 15% When no written rate is fixed; courts typically award the full 15% on matured sums from the day the balance is ascertained. | No statutory cap Cap details for New Mexico → | NMSA 1978 §§ 56-8-3, 56-8-5, 56-8-9 Statute text
|
| New York verified 2026-08-19 | 9% Statutory prejudgment rate on contract debts (simple), from the earliest date the claim existed. The 2% consumer-debt rate does not apply to B2B. | Hard cap 25% criminal (effective) Cap details for New York → | CPLR 5004; GOL 5-501; Penal Law 190.40 Statute text
|
| North Carolina verified 2026-08-19 | 8% Legal rate; on contract claims the awarded amount bears interest from the date of breach. | No statutory cap Cap details for North Carolina → | N.C.G.S. §§ 24-1, 24-5, 24-1.1, 24-9 Statute text
|
| North Dakota verified 2026-10-01 | 6% Legal rate for any legal indebtedness unless a different written rate (continues after maturity). | Conditional cap 6-month T-bill average +5.5 pts, 7% floor (non-entity, $35k or less) Cap details for North Dakota → | N.D.C.C. 47-14-05, 47-14-09 Statute text
|
| Ohio verified 2026-08-19 | Variable — 7% (2026) Set annually by the Tax Commissioner (federal short-term rate rounded +3 pts); runs from when the money became due and payable. | No statutory cap Cap details for Ohio → | ORC 1343.03, 5703.47, 1343.01 Statute text
|
| Oklahoma verified 2026-08-21 | 6% Legal rate absent a contract rate; liquidated sums earn interest from the day the right to recover vested. | Hard cap 10% (constitutional) Cap details for Oklahoma → | 15 O.S. § 266; Okla. Const. art. XIV, § 2 Statute text
|
| Oregon verified 2026-08-19 | 9% Legal rate on moneys after they become due; open accounts bear interest from the date of the last item. | No statutory cap Cap details for Oregon → | ORS 82.010 Statute text
|
| Pennsylvania verified 2026-08-19 | 6% Legal rate; on a fixed-sum debt it runs as of right from the date payment was due. | No statutory cap Cap details for Pennsylvania → | 41 P.S. §§ 201, 202 Statute text
|
| Rhode Island verified 2026-08-19 | 12% Statutory legal rate when no rate is agreed. | Hard cap 21% (or prime+9%) Cap details for Rhode Island → | R.I. Gen. Laws §§ 6-26-1, 6-26-2 Statute text
|
| South Carolina verified 2026-08-19 | 8.75% Legal rate on ascertained sums due when no rate is agreed (post-judgment rate is separate: prime +4 pts, 10.75% for 2026). | No statutory cap Cap details for South Carolina → | S.C. Code Ann. §§ 34-31-20, 37-10-106 Statute text
|
| South Dakota verified 2026-08-21 | 15% Category F default rate when no written rate is fixed, from the day the balance is due/ascertained. | Conditional cap 18% if the rate only appears on the bill, statement, or invoice; no cap if fixed by written agreement Cap details for South Dakota → | SDCL 54-3-5, 54-3-16, 54-3-1.1 Statute text
|
| Tennessee verified 2026-10-30 | 10% Maximum effective default for uncontracted transactions; courts award prejudgment interest in equity at up to 10%. | Hard cap formula rate (11.00% on Oct 27, 2026; max 24%) Cap details for Tennessee → | Tenn. Code Ann. §§ 47-14-102, -103, -123 Statute text
|
| Texas verified 2026-10-30 | 6% Begins accruing on the 30th day after the amount is due when the contract specifies no rate. | Hard cap 18% for Oct 19–25, 2026 (28% statutory max) Cap details for Texas → | Tex. Fin. Code §§ 302.002, 303.002, 303.009 Statute text
|
| Utah verified 2026-08-19 | 10% Legal rate for contracts (including services and breach claims) unless the parties specify otherwise. | No statutory cap Cap details for Utah → | Utah Code § 15-1-1 Statute text
|
| Vermont verified 2026-08-19 | 12% Legal rate; awarded as of right on liquidated sums from the date the debt became due. | No statutory cap Cap details for Vermont → | 9 V.S.A. §§ 41a, 46 Statute text
|
| Virginia verified 2026-08-19 | 6% On open accounts with no written credit agreement, interest accrues AUTOMATICALLY from day 61 after the invoice/billing statement is presented and unpaid — no demand needed. | Conditional cap 12% (deals under $5,000) Cap details for Virginia → | Va. Code §§ 6.2-301, 6.2-303, 6.2-317 Statute text
|
| Washington verified 2026-08-19 | 12% Legal rate where no different rate is agreed in writing; applied as prejudgment interest on liquidated claims. | No statutory cap Cap details for Washington → | RCW 19.52.010, 19.52.020 Statute text
|
| West Virginia verified 2026-08-21 | 6% Legal rate absent a written rate; once litigated, a court-set rate applies (judgments/decrees entered in 2026: 6.25%; floor 4% / cap 9%). | No statutory cap Cap details for West Virginia → | W. Va. Code §§ 47-6-5, 47-6-11 Statute text
|
| Wisconsin verified 2026-08-19 | 5% Legal rate when the contract is silent; runs from the contractual due date (or from demand/suit if no time is set). | No statutory cap Cap details for Wisconsin → | Wis. Stat. §§ 138.04, 138.05 Statute text
|
| Wyoming verified 2026-08-19 | 7% Statutory default when no rate is agreed in writing. | No statutory cap Cap details for Wyoming → | Wyo. Stat. § 40-14-106 Statute text
|
Source: the statute linked in each row · How we verify this data · Changelog
$10,000 invoice paid 90 days late, simple interest at the state default rate.
| Rank | State | Default rate applied | Interest owed on the example |
|---|---|---|---|
| 1 | New Mexico | Up to 15% | $369.86 |
| 2 | South Dakota | 15% | $369.86 |
| 3 | Idaho | 12% | $295.89 |
| 4 | Nebraska | 12% | $295.89 |
| 5 | Rhode Island | 12% | $295.89 |
| 6 | Vermont | 12% | $295.89 |
| 7 | Washington | 12% | $295.89 |
| 8 | Alaska | 10.5% | $258.90 |
| 9 | Arizona | 10% | $246.58 |
| 10 | California | 10% | $246.58 |
| 11 | Connecticut | 10% | $246.58 |
| 12 | Hawaii | 10% | $246.58 |
| 13 | Kansas | 10% | $246.58 |
| 14 | Montana | 10% | $246.58 |
| 15 | New Hampshire | 10% | $246.58 |
| 16 | Tennessee | 10% | $246.58 |
| 17 | Utah | 10% | $246.58 |
| 18 | Missouri | 9% | $221.92 |
| 19 | New York | 9% | $221.92 |
| 20 | Oregon | 9% | $221.92 |
| 21 | South Carolina | 8.75% | $215.75 |
| 22 | Colorado | 8% | $197.26 |
| 23 | Indiana | 8% | $197.26 |
| 24 | Kentucky | 8% | $197.26 |
| 25 | Mississippi | 8% | $197.26 |
| 26 | North Carolina | 8% | $197.26 |
| 27 | Georgia | 7% | $172.60 |
| 28 | Wyoming | 7% | $172.60 |
| 29 | Alabama | 6% | $147.95 |
| 30 | Arkansas | 6% | $147.95 |
| 31 | District of Columbia | 6% | $147.95 |
| 32 | Maryland | 6% | $147.95 |
| 33 | Massachusetts | 6% | $147.95 |
| 34 | Minnesota | 6% | $147.95 |
| 35 | North Dakota | 6% | $147.95 |
| 36 | Oklahoma | 6% | $147.95 |
| 37 | Pennsylvania | 6% | $147.95 |
| 38 | Texas | 6% | $147.95 |
| 39 | Virginia | 6% | $147.95 |
| 40 | West Virginia | 6% | $147.95 |
| 41 | Illinois | 5% | $123.29 |
| 42 | Iowa | 5% | $123.29 |
| 43 | Wisconsin | 5% | $123.29 |
Row-by-row verification: each row shows the date it was last re-verified against the primary source (the badge under the state name; most recent: October 30, 2026), and 51 rows quote the operative legal text verbatim — the statute, constitutional provision or, where the rate is set by court rule, the rule itself (expand “Statute text” in any row). How we verify this data → · Changelog
Not legal advice. B2B invoices only; verify the linked statute before charging a late fee.
Worked example: a $10,000 B2B invoice paid 90 days late, simple
interest at the state default rate. Re-derive any row yourself:
owed = $10,000 × (rate ÷ 365) × 90. This is the same simple-interest
formula used by the calculator at the top of this page.
Rows whose default is a statutory ceiling (shown as “Up to X%”) are ranked at that ceiling — a court may award less; see the state's row for the conditions.
Ranking covers the 43 states with a fixed statutory default. The 8 states below set their default by a formula or an officer's periodic order, so there is no single printed number to rank — follow each link for the live figure and enter it in the calculator.
Last full review: August 19, 2026; 13 rows re-checked since then carry their own date (latest: October 30, 2026). Every figure is computed at build time from the statutory default rate in the table above — see each state's row and cited statute.
Default rate (contract silent): 6%
Written-contract cap: Conditional cap · cap details · table row
Statute: Ala. Code §§ 8-8-1, 8-8-5 verified 2026-08-19
Alabama late fee calculator → Calculate with Alabama's rate ↑
Default rate (contract silent): 10.5%
Written-contract cap: Conditional cap · cap details · table row
Statute: AS 45.45.010 verified 2026-08-19
Default rate (contract silent): 10%
Written-contract cap: No statutory cap · cap details · table row
Statute: A.R.S. §§ 44-1201, 44-1202 verified 2026-08-19
Arizona late fee calculator → Calculate with Arizona's rate ↑
Default rate (contract silent): 6%
Written-contract cap: Hard cap · cap details · table row
Statute: Ark. Const. amend. 89; Ark. Code Ann. § 4-57-101(d) verified 2026-08-19
Arkansas late fee calculator → Calculate with Arkansas's rate ↑
Default rate (contract silent): 10%
Written-contract cap: Conditional cap · cap details · table row
Statute: Cal. Civ. Code § 3289(b); Cal. Const. art. XV, § 1 verified 2026-08-19
California late fee calculator → Calculate with California's rate ↑
Default rate (contract silent): 8%
Written-contract cap: Hard cap · cap details · table row
Statute: C.R.S. §§ 5-12-101 to -103 verified 2026-08-19
Colorado late fee calculator → Calculate with Colorado's rate ↑
Default rate (contract silent): 10%
Written-contract cap: Conditional cap · cap details · table row
Statute: Conn. Gen. Stat. §§ 37-1, 37-3a, 37-4, 37-9 verified 2026-08-21
Connecticut late fee calculator → Calculate with Connecticut's rate ↑
Default rate (contract silent): Variable — 9.00% (since Sep 17, 2026)
Written-contract cap: No statutory cap · cap details · table row
Statute: 6 Del. C. §§ 2301, 2306 verified 2026-10-01
Delaware late fee calculator → Calculate with Delaware's rate ↑
Default rate (contract silent): 6%
Written-contract cap: Conditional cap · cap details · table row
Statute: D.C. Code §§ 28-3301, 28-3302, 15-108 verified 2026-08-19
District of Columbia late fee calculator → Calculate with District of Columbia's rate ↑
Default rate (contract silent): Variable — 7.87% (Oct–Dec 2026) (figure read from the Brevard County Clerk of the Court's copy of the CFO rate table)
Written-contract cap: Hard cap · cap details · table row
Statute: Fla. Stat. §§ 687.01, 55.03, 687.02–.03 verified 2026-09-25
Florida late fee calculator → Calculate with Florida's rate ↑
Default rate (contract silent): 7%
Written-contract cap: Conditional cap · cap details · table row
Statute: O.C.G.A. §§ 7-4-2, 7-4-16 verified 2026-09-25
Georgia late fee calculator → Calculate with Georgia's rate ↑
Default rate (contract silent): 10%
Written-contract cap: No statutory cap · cap details · table row
Statute: HRS §§ 478-2, 478-4(c) verified 2026-08-19
Default rate (contract silent): 12%
Written-contract cap: No statutory cap · cap details · table row
Statute: Idaho Code §§ 28-22-104, 28-42-201 verified 2026-08-19
Default rate (contract silent): 5%
Written-contract cap: No statutory cap · cap details · table row
Statute: 815 ILCS 205/2, 205/4 verified 2026-08-19
Illinois late fee calculator → Calculate with Illinois's rate ↑
Default rate (contract silent): 8%
Written-contract cap: No statutory cap · cap details · table row
Statute: Ind. Code §§ 24-4.6-1-102, -103 verified 2026-08-19
Indiana late fee calculator → Calculate with Indiana's rate ↑
Default rate (contract silent): 5%
Written-contract cap: No statutory cap · cap details · table row
Statute: Iowa Code § 535.2 verified 2026-08-19
Default rate (contract silent): 10%
Written-contract cap: No statutory cap · cap details · table row
Statute: K.S.A. 16-201, 16-207 verified 2026-08-19
Default rate (contract silent): 8%
Written-contract cap: Conditional cap · cap details · table row
Statute: KRS 360.010 verified 2026-08-19
Kentucky late fee calculator → Calculate with Kentucky's rate ↑
Default rate (contract silent): Variable — 7.50% (2026)
Written-contract cap: No statutory cap · cap details · table row
Statute: La. R.S. 9:3500, 13:4202; Civ. Code art. 2000 verified 2026-08-19
Louisiana late fee calculator → Calculate with Louisiana's rate ↑
Default rate (contract silent): Variable — 6.51% (2026)
Written-contract cap: No statutory cap · cap details · table row
Statute: 14 M.R.S. §§ 1602-B, 1602-C; 9-A M.R.S. § 1-202(1) verified 2026-08-19
Default rate (contract silent): 6%
Written-contract cap: Hard cap · cap details · table row
Statute: Md. Const. art. III, § 57; Com. Law §§ 12-102, 12-103 verified 2026-08-19
Maryland late fee calculator → Calculate with Maryland's rate ↑
Default rate (contract silent): 6%
Written-contract cap: Hard cap · cap details · table row
Statute: MGL c.231 § 6C; c.107 § 3; c.271 § 49 verified 2026-08-21
Massachusetts late fee calculator → Calculate with Massachusetts's rate ↑
Default rate (contract silent): No automatic rate — 4.959% (Jul–Dec 2026)
Written-contract cap: Hard cap · cap details · table row
Statute: MCL 438.31, 438.61, 450.1275; MCL 600.6013 verified 2026-08-19
Michigan late fee calculator → Calculate with Michigan's rate ↑
Default rate (contract silent): 6%
Written-contract cap: Conditional cap · cap details · table row
Statute: Minn. Stat. §§ 334.01, 334.011; § 549.09 verified 2026-08-19
Minnesota late fee calculator → Calculate with Minnesota's rate ↑
Default rate (contract silent): 8%
Written-contract cap: Conditional cap · cap details · table row
Statute: Miss. Code Ann. § 75-17-1 verified 2026-08-19
Mississippi late fee calculator → Calculate with Mississippi's rate ↑
Default rate (contract silent): 9%
Written-contract cap: No statutory cap · cap details · table row
Statute: RSMo 408.020, 408.030, 408.035 verified 2026-08-19
Missouri late fee calculator → Calculate with Missouri's rate ↑
Default rate (contract silent): 10%
Written-contract cap: Hard cap · cap details · table row
Statute: MCA 31-1-106, 31-1-107 verified 2026-08-19
Montana late fee calculator → Calculate with Montana's rate ↑
Default rate (contract silent): 12%
Written-contract cap: No statutory cap · cap details · table row
Statute: Neb. Rev. Stat. §§ 45-104, 45-101.03, 45-101.04 verified 2026-08-19
Nebraska late fee calculator → Calculate with Nebraska's rate ↑
Default rate (contract silent): Variable — 8.75% (Jul–Dec 2026)
Written-contract cap: No statutory cap · cap details · table row
Statute: NRS 99.040, 99.050 verified 2026-08-19
Default rate (contract silent): 10%
Written-contract cap: No statutory cap · cap details · table row
Statute: RSA 336:1 verified 2026-08-21
New Hampshire late fee calculator → Calculate with New Hampshire's rate ↑
Default rate (contract silent): Variable — 4.5% / 6.5% (2026)
Written-contract cap: Hard cap · cap details · table row
Statute: N.J. Ct. R. 4:42-11; N.J.S.A. 31:1-1, 31:1-6; 2C:21-19 verified 2026-08-21
New Jersey late fee calculator → Calculate with New Jersey's rate ↑
Default rate (contract silent): Up to 15%
Written-contract cap: No statutory cap · cap details · table row
Statute: NMSA 1978 §§ 56-8-3, 56-8-5, 56-8-9 verified 2026-08-19
New Mexico late fee calculator → Calculate with New Mexico's rate ↑
Default rate (contract silent): 9%
Written-contract cap: Hard cap · cap details · table row
Statute: CPLR 5004; GOL 5-501; Penal Law 190.40 verified 2026-08-19
New York late fee calculator → Calculate with New York's rate ↑
Default rate (contract silent): 8%
Written-contract cap: No statutory cap · cap details · table row
Statute: N.C.G.S. §§ 24-1, 24-5, 24-1.1, 24-9 verified 2026-08-19
North Carolina late fee calculator → Calculate with North Carolina's rate ↑
Default rate (contract silent): 6%
Written-contract cap: Conditional cap · cap details · table row
Statute: N.D.C.C. 47-14-05, 47-14-09 verified 2026-10-01
North Dakota late fee calculator → Calculate with North Dakota's rate ↑
Default rate (contract silent): Variable — 7% (2026)
Written-contract cap: No statutory cap · cap details · table row
Statute: ORC 1343.03, 5703.47, 1343.01 verified 2026-08-19
Default rate (contract silent): 6%
Written-contract cap: Hard cap · cap details · table row
Statute: 15 O.S. § 266; Okla. Const. art. XIV, § 2 verified 2026-08-21
Oklahoma late fee calculator → Calculate with Oklahoma's rate ↑
Default rate (contract silent): 9%
Written-contract cap: No statutory cap · cap details · table row
Statute: ORS 82.010 verified 2026-08-19
Default rate (contract silent): 6%
Written-contract cap: No statutory cap · cap details · table row
Statute: 41 P.S. §§ 201, 202 verified 2026-08-19
Pennsylvania late fee calculator → Calculate with Pennsylvania's rate ↑
Default rate (contract silent): 12%
Written-contract cap: Hard cap · cap details · table row
Statute: R.I. Gen. Laws §§ 6-26-1, 6-26-2 verified 2026-08-19
Rhode Island late fee calculator → Calculate with Rhode Island's rate ↑
Default rate (contract silent): 8.75%
Written-contract cap: No statutory cap · cap details · table row
Statute: S.C. Code Ann. §§ 34-31-20, 37-10-106 verified 2026-08-19
South Carolina late fee calculator → Calculate with South Carolina's rate ↑
Default rate (contract silent): 15%
Written-contract cap: Conditional cap · cap details · table row
Statute: SDCL 54-3-5, 54-3-16, 54-3-1.1 verified 2026-08-21
South Dakota late fee calculator → Calculate with South Dakota's rate ↑
Default rate (contract silent): 10%
Written-contract cap: Hard cap · cap details · table row
Statute: Tenn. Code Ann. §§ 47-14-102, -103, -123 verified 2026-10-30
Tennessee late fee calculator → Calculate with Tennessee's rate ↑
Default rate (contract silent): 6%
Written-contract cap: Hard cap · cap details · table row
Statute: Tex. Fin. Code §§ 302.002, 303.002, 303.009 verified 2026-10-30
Default rate (contract silent): 10%
Written-contract cap: No statutory cap · cap details · table row
Statute: Utah Code § 15-1-1 verified 2026-08-19
Default rate (contract silent): 12%
Written-contract cap: No statutory cap · cap details · table row
Statute: 9 V.S.A. §§ 41a, 46 verified 2026-08-19
Vermont late fee calculator → Calculate with Vermont's rate ↑
Default rate (contract silent): 6%
Written-contract cap: Conditional cap · cap details · table row
Statute: Va. Code §§ 6.2-301, 6.2-303, 6.2-317 verified 2026-08-19
Virginia late fee calculator → Calculate with Virginia's rate ↑
Default rate (contract silent): 12%
Written-contract cap: No statutory cap · cap details · table row
Statute: RCW 19.52.010, 19.52.020 verified 2026-08-19
Washington late fee calculator → Calculate with Washington's rate ↑
Default rate (contract silent): 6%
Written-contract cap: No statutory cap · cap details · table row
Statute: W. Va. Code §§ 47-6-5, 47-6-11 verified 2026-08-21
West Virginia late fee calculator → Calculate with West Virginia's rate ↑
Default rate (contract silent): 5%
Written-contract cap: No statutory cap · cap details · table row
Statute: Wis. Stat. §§ 138.04, 138.05 verified 2026-08-19
Wisconsin late fee calculator → Calculate with Wisconsin's rate ↑
Default rate (contract silent): 7%
Written-contract cap: No statutory cap · cap details · table row
Statute: Wyo. Stat. § 40-14-106 verified 2026-08-19
Wyoming late fee calculator → Calculate with Wyoming's rate ↑
Annual rate, simple interest: fee = amount × (annual rate ÷ 365) × days
Annual rate, compounded daily: fee = amount × ((1 + annual rate ÷ 365)^days − 1)
% per month: fee = amount × monthly rate × months; pro-rated by day: amount × (monthly rate × 12 ÷ 365) × days
% per day: fee = amount × daily rate × days
One-time % or flat fee: fee = amount × percentage or fee = flat amount
Equivalent annual simple rate: (fee ÷ amount) × (365 ÷ days); for a rate per month, monthly rate × 12
Worked examples for every method: How to calculate late fees on an invoice →
“Late fee” means two legally unrelated things in every US state, and the two are easy to mix up:
Why we point this out: summaries around the web sometimes answer the business-invoice question with citations drawn from the landlord–tenant chapter. Before relying on any late-fee table — including ours — open the cited statute and check which chapter it actually sits in. That is exactly why every row above quotes the operative legal text verbatim and links the official source: you can verify each claim in one click.
Searching for rent late-fee rules? This page deliberately does not cover residential tenancy. Our rent late fee pages cover Massachusetts, Hawaii and New Mexico; for any other state, start from its landlord–tenant act.
Cite this data. Derived from the on-page state late-payment table (legal default rates, B2B). Last full review: August 19, 2026; 13 rows re-checked since then carry their own date (latest: October 30, 2026). Licensed CC BY 4.0. Copy-ready citation:
MyInvoiceTemplate, US State Late-Payment Interest Rates (2026), myinvoicetemplate.com/tools/late-fee-calculator/#ranked
Both reference tables on this page are available as open data, regenerated from the verified source at every build.
State late-payment interest (51 jurisdictions): CSV · JSON
VAT / GST standard rates by country: CSV · JSON
Plain-text mirror of the ranked list (easy to cite or paste): TXT
Every verification pass and correction is logged publicly: data changelog
Cite this dataset. MyInvoiceTemplate, US State Late-Payment Interest Rates (2026). Last full review: August 19, 2026; 13 rows re-checked since then carry their own date (latest: October 30, 2026). Licensed CC BY 4.0. Copy-ready citation:
MyInvoiceTemplate, US State Late-Payment Interest Rates (2026), CC BY 4.0, myinvoicetemplate.com/data/late-payment-interest-by-state-2026.json (full review 2026-08-19; rows re-checked to 2026-10-30)
Free under CC BY 4.0 — the only condition is that the attribution line inside the widget stays visible. The embed is a compact, self-updating version of the 51-row table above:
<iframe src="https://myinvoicetemplate.com/embed/late-fee-table/" width="100%" height="520" style="border:1px solid #e5e7eb;border-radius:8px" loading="lazy" title="US state late-payment interest (B2B) — MyInvoiceTemplate"></iframe>
Prefer raw data instead? Use the JSON / CSV downloads above.