TN · compiled 2026-07-17
Tennessee late fee law
Tennessee does not publish a single fixed contract-silent rate: it is set by formula or index under Tenn. Code Ann. §§ 47-14-103, 47-14-102. The formula, where the current figure is published, and the rules for agreed rates are below with citations.
Legal interest rate (type not classified)
Tenn. Code Ann. §§ 47-14-103, 47-14-102We have not been able to confirm whether this figure is a contract-silent default, a litigation-only rate, or a ceiling. Do not rely on it without counsel.
No single fixed default: Tennessee sets tiered MAXIMUM effective rates rather than one legal rate. Under § 47-14-103, transactions governed by other statutes use those rates; written contracts may charge up to the 'formula rate' - 4 percentage points above the Federal Reserve's published average prime loan rate, or 24% per annum, whichever is less (§ 47-14-102, published by the TN Dept. of Financial Institutions); all other (non-written-contract) transactions are capped at 10% per annum (§ 47-14-103(3)). Prejudgment interest is discretionary up to 10% under § 47-14-123. Verified via FindLaw/Justia reproductions plus the official tn.gov formula-rate publication (official code is Lexis-hosted). Rate type not classified: Tennessee sets tiered MAXIMUM effective rates rather than a single default legal rate, so there is no single figure that accrues by operation of law. Verify with counsel.
Agreed (contract) rates and caps
Tenn. Code Ann. §§ 47-14-103(2), 47-14-102 (definition of formula rate)Parties to a written contract may agree to any rate up to the applicable formula rate (avg. prime + 4 points, capped at 24% per annum); specific lender/transaction statutes may authorize other rates. Without a written contract the 10% ceiling applies. Verify current formula rate via the TN Dept. of Financial Institutions.
Prompt payment act
Tenn. Code Ann. §§ 66-34-101 et seq., 66-34-601public+private-construction
Tennessee's Prompt Pay Act (Tenn. Code Ann. § 66-34-101 et seq.) covers construction projects, including private projects (excluding residential of 4 or fewer units), with owner→contractor payment generally due within 30 days of a pay application; § 66-34-601: delinquent payments accrue interest from the date due at the written-contract rate or, if none specified, 1.5% per month. No general private commercial (non-construction) prompt-payment statute found.
Late-fee notes
The Prompt Pay Act's 1.5%/month default is a distinctive statutory late-charge for construction invoices (contract rate controls if specified); remedies include stop-work rights and notice requirements. Outside construction, flat late fees on B2B invoices follow ordinary liquidated-damages/penalty doctrine and interest components must respect the § 47-14-103 ceilings. Verify with counsel.
Compute a late fee on a real invoice under Tennessee context, derivation shown, citation alongside.
Calculator, prefilled for TNSources for this entry
- https://codes.findlaw.com/tn/title-47-commercial-instruments-and-transactions/tn-code-sect-47-14-103/
- https://law.justia.com/codes/tennessee/title-47/chapter-14/part-1/section-47-14-102/
- https://www.tn.gov/tdfi/tdfi-how-do-i/info/mortgage-rate-of-interest.html
- https://law.justia.com/codes/tennessee/title-66/chapter-34/part-6/section-66-34-601/
- https://www.levelset.com/prompt-payment/tennessee-prompt-payment-faqs/
Not legal advice
Informational summary of state and federal statutes as researched on the sources listed per entry; not legal advice - verify current law with licensed counsel before relying on any rate or citation.
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Duebay applies these rules automatically: fees computed from your agreed terms, the citation shown, and reminder sequences that escalate on schedule.