Retainage · North Dakota

North Dakota retainage law: 10% cap until 50% complete (2026)

By Oussama Chicha, EditorUpdated Checked against primary sources · not yet reviewed by a licensed professionalFact-checked
Quick answer

North Dakota allows retention of 10% of each estimate only until the project is 50% complete; later estimates carry no further retainage. N.D.C.C. § 43-07-23 sets this for private contracts and § 48-01.2-13 for public improvements, where retention may continue past 50% only if unsatisfactory progress or performance is documented. Neither section fixes a number of days for releasing what was held.

Private work

North Dakota · Private workVerified 2026-09-22
Retainage cap
10%
Applies to contracts between persons for work to be done by a contractor, except contracts subject to N.D.C.C. § 40-22-37 or § 48-01.2-13 (public improvements) or governed by federal retention rules.
Deadline
The 10% retention is allowable only until the project is 50% complete; after that no further retainage may be taken on estimates during the contract. The statute sets no release deadline for the amount already retained.
What the statute says
Contracts entered between persons for the performance of work to be done by a contractor, except those contracts subject to section 40-22-37 or 48-01.2-13, or contracts governed by federal statutes or regulations which require other provisions with respect to retention, are subject to a maximum retention on amounts due under the contract as follows: retention of ten percent of each estimate presented is allowable until such time as the project is fifty percent complete ...
N.D.C.C. § 43-07-23. · Official text · retrieved 2026-09-22

Public work

North Dakota · Public workVerified 2026-09-22
Retainage cap
10%
Ten percent of each partial payment estimate until the project is 50% complete, then no further retainage unless unsatisfactory progress or performance is documented. At 95% completion the governing body may pay up to 95% of the amount retained from previous estimates.
Deadline
No fixed release deadline for retainage. Final payment of all moneys due follows completion of all work, acceptance of the project by the governing body, and provision of necessary releases; the remaining retained amount is paid in the amounts and at the times approved by the architect or engineer.
What the statute says
A partial payment estimate must include retentions or retainage as follows: ten percent of each estimate until the project is fifty percent completed with no further retainage on estimates during the continuance of the contract unless unsatisfactory progress or performance is documented.
N.D.C.C. § 48-01.2-13. · Official text · retrieved 2026-09-22

Who this applies to

North Dakota puts the same retainage ceiling in two chapters of its Century Code: one for work between private parties, one for public improvements.

What the rule says

Retention in North Dakota stops at the halfway point instead of running to the end of the job. Each estimate may carry retainage of 10% up to the point the project reaches 50% completion [2], and estimates after that carry none for the rest of the contract [2]. Public improvements use the same 10% and 50% figures [1], with one opening: retention can go on past the halfway point where unsatisfactory progress or performance is documented [1]. Neither section sets a day count for paying out what has already been held [2] [1].

How to comply

  1. Hold the retention clause to the statute. On a private job, a clause that keeps more than 10% of an estimate, or keeps taking retainage once the project is 50% complete, goes past the maximum in § 43-07-23 [2]. On a public improvement, retention after the 50% mark needs documented unsatisfactory progress or performance [1].
  2. Find the payout date in the contract on private work. Section 43-07-23 names no deadline for releasing retained amounts [2]. One money rule does apply at the end: if the owner, governing board or authorized committee invested the retained funds, the interest they earned is payable to the contractor at final payment [2].
  3. Follow the public close-out sequence. Once 95% of the contract is complete, the governing body may pay the contractor up to 95% of the amount retained from earlier estimates [1]. The rest is paid in the amounts and at the times the architect or engineer approves [1], and final payment of all money due follows completion of all work, the governing body's acceptance of the project and provision of the necessary releases [1].
  4. Track the 30-day interest trigger on public work. Under § 48-01.2-14, a governing body that goes more than 30 days, counted from approval or from the completion and acceptance date, without considering a properly submitted estimate, paying an approved estimate or making final payment owes interest from the date of approval [1]. The rate is two percentage points below the Bank of North Dakota prime rate [1].

The full text of both sections is linked in the Sources list below; read it next to your own contract before you bill or release retainage.

Related

Retainage laws: other states

Sources

  1. N.D.C.C. ch. 48-01.2, Public Improvement Bids and Contracts (North Dakota Legislative Branch official Century Code PDF) (retrieved 2026-09-22)
  2. N.D.C.C. ch. 43-07, Contractors (North Dakota Legislative Branch official Century Code PDF), § 43-07-23 (retrieved 2026-09-22)

Changelog

  1. : Page published.
  2. : Dataset first published with 36 of 51 jurisdictions verified.