# Maine — Construction prompt payment act deadlines by US state — owner-to-contractor and contractor-to-subcontractor payment windows, retention release deadlines, and late-payment interest rates

For Maine, owner-to-gc payment deadline (days) is 20; gc-to-sub flow-down deadline (days) is 7; retention release deadline (days) is 30; late-payment interest rate is 1% per month; project types covered is both, verified against its source on 2026-08-15.

- **State:** Maine _(verified: appears in the quote below)_
- **Owner-to-GC payment deadline (days):** 20 _(verified: appears in the quote below)_
- **GC-to-sub flow-down deadline (days):** 7 _(verified: appears in the quote below)_
- **Retention release deadline (days):** 30 _(verified: appears in the quote below)_
- **Late-payment interest rate:** 1% per month _(verified: appears in the quote below)_
- **Project types covered:** both _(verified: appears in the quote below)_
- **Attorney fees recoverable:** yes _(verified: appears in the quote below)_
- **Statutory citation:** 10 M.R.S.A. §§ 1111 et seq.; 5 M.R.S.A. §§ 1551 et seq. _(verified: appears in the quote below)_

## What the source says

> 20 days from the end of the "billing period." This may be modified by agreement. 7 DAYS Subcontractors On public projects, Maine requires payment from the hiring party to subcontractors within 7 days of: the hiring party's receipt of invoice; or the hiring party's receipt of payment from above. This deadline may be modified by contract. 7 DAYS Suppliers Payment on public projects is due to material suppliers in Maine by the later of 7 days from receipt of invoice or receipt of payment from above. This deadline can be modified by contract. 1% / MONTH Interest & Fees Maine assesses an interest penalty on late payments at the statutory rate of 1% per month. Attorney fees may be awarded to the "substantially" prevailing party in a prompt payment claim. Choose Different State Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota Ohio Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington DC Washington West Virginia Wisconsin Wyoming Choose Different Maine Topic Preliminary Notice Mechanics Lien Bond Claim Lien Waiver Prompt Payment Retainage Skip down to FAQs Maine’s prompt payment laws regulate the acceptable amount of time in which payments must be made to contractors and subs on both public and private construction projects.

## Source

- https://www.levelset.com/prompt-payment/maine-prompt-payment-faqs/

Last verified: 2026-08-15. Review by: 2027-08-15.
Part of [Construction prompt payment act deadlines by US state — owner-to-contractor and contractor-to-subcontractor payment windows, retention release deadlines, and late-payment interest rates](https://referencesource.org/construction-prompt-payment-deadlines-by-state/).