A GC based in Georgia starts a hotel project in Florida. They apply their standard 10% retainage to all subcontracts. Three months in, a mechanical subcontractor's attorney sends a demand letter: Florida caps retainage at 10% for private projects but requires release within 30 days of the sub's completion. The GC planned to hold retention until project closeout, 9 months away.

This is not a hypothetical. Retainage handling for subcontractors varies so significantly across states that a multi-state GC must maintain different retainage policies for different projects. What is standard in Texas may violate the law in California. What is contractual in Georgia may be statutory in New York.

This guide maps the retainage laws that affect subcontractor payments across every state where the differences matter most.

The Case: Multi-State GC Discovers Retainage Liability

Company: A $220M general contractor headquartered in Atlanta, operating across Georgia, Florida, Texas, California, and New York. They managed 180 active subcontracts across 15 projects.

The problem: The company used a single retainage policy: 10% withheld until project substantial completion, released within 60 days. This policy complied with Georgia law but violated statutes in three of their other four states.

Financial exposure discovered during an internal audit:

State	Violation	Subcontracts Affected	Potential Penalty
Florida	Retainage not released within 30 days of sub completion	12 subs	$94,000 in interest
California	Retainage exceeded 5% on private projects	8 subs	$67,000 in penalties
New York	No interest paid on public project retainage	3 subs	$28,000 in interest owed
Texas	Compliant	14 subs	$0

Total exposure: $189,000 across 23 subcontracts. The company had to retroactively reduce retainage, calculate and pay interest, and restructure their billing procedures for each state.

Resolution time: 4 months of accounting work, legal review in each state, and subcontractor negotiations. The company invested $45,000 in legal fees and dedicated one full-time project accountant to the remediation.

State-by-State Retainage Rules: High-Impact States

States That Cap Retainage at 5% or Less

California

Private projects: 5% maximum retention
Public projects: 5% maximum retention
Reduction: Must reduce when sub is 50% complete (practice, not statute)
Release: Within 30 days of sub's work acceptance
Penalty: 2% per month on wrongfully withheld retention
Escrow: Securities may be substituted for cash retention

Colorado

Public projects: 5% maximum retention
Private projects: No statutory cap (contractual)
Release: Public projects require release within 60 days of final acceptance
Penalty: Interest at statutory rate

Maryland

Public projects: 5% maximum; must be reduced to 2.5% at 50% completion
Private projects: No statutory cap
Release: Within 45 days of acceptance for public work
Escrow: State agencies must deposit retainage in interest-bearing escrow

Oregon

Public projects: 5% maximum; may be reduced to 0% after 50% completion
Private projects: No statutory cap
Release: Within 30 days of completion of sub's work
Escrow: Required for public projects over $500,000

Minnesota

Public projects: 5% maximum
Private projects: No statutory cap
Release: Within 60 days of final acceptance for public work
Penalty: 1.5% per month interest on late retention payments

States That Require Retainage Escrow

State	Project Type	Threshold	Interest to Sub
Massachusetts	Public	Over $25,000	Yes
Nevada	Public	All amounts	Yes
New Mexico	Public	All amounts	Yes
Oregon	Public	Over $500,000	Yes
Maryland	Public (state)	All amounts	Yes
Utah	Private (if requested)	Over $50,000	Shared
Ohio	Public	All amounts	Yes

States with Strict Release Deadlines

Florida

Release trigger: Sub's portion of work complete and accepted
Deadline: 30 days from acceptance (private); per contract but "prompt" (public)
Penalty: Interest at 1% per month plus attorney fees
Special rule: Owner must make retained funds available to GC within 30 days; GC must pay sub within 10 days of receipt

Texas

Release trigger: Acceptance of the sub's work on government contracts
Deadline: 30 days after acceptance for government work; per contract for private
Penalty: Interest at 1.5% per month for government contracts
Special rule: On government contracts, retainage may not exceed 5% without justification

New York

Release trigger: Sub's work approved; project reaches substantial completion
Deadline: Per contract, but prompt-payment act applies
Penalty: Interest at rate specified in the contract or statutory rate
Special rule: For public projects, the Interest on State Contracts Act requires interest on late retention payments

Illinois

Release trigger: Sub's work complete
Deadline: 60 days for private projects; 60 days for public projects
Penalty: 2% per month for private; interest plus attorney fees for public
Special rule: On public contracts, retainage exceeding 5% requires written justification

States with No Statutory Retainage Limits

These states leave retainage entirely to contract negotiation:

State	Retainage Governed By	Common Practice
Georgia	Contract terms only	10% standard
Alabama	Contract terms only	10% standard
Mississippi	Contract terms only	10% standard
South Carolina	Contract terms only	5-10%
Louisiana	Contract terms (public has rules)	5% public, 10% private
Tennessee	Contract terms only	5-10%
Kentucky	Contract terms only	10% standard

In these states, the subcontract language is the only governing authority. GCs have maximum flexibility but also maximum exposure to disputes if their retention practices differ from industry norms.

Public vs. Private Project Differences

The distinction between public and private retainage rules creates a compliance matrix that GCs must track project by project.

Federal projects (Miller Act / FAR):

Retainage should not exceed 10% and should be reduced to the maximum extent practicable
FAR 32.103 encourages agencies to reduce or eliminate retainage
Interest is owed on retention held beyond 14 days after payment is due
Payment bonds provide additional protection to subcontractors

State/local public projects:

Most restrictive retainage rules
Many states cap at 5%
Escrow and interest requirements are most common on public work
Prompt-payment acts typically apply with statutory penalties

Private commercial projects:

Retainage is primarily contractual
State caps apply where they exist
Prompt-payment acts may or may not include retainage
Mechanic's lien rights provide the sub's primary remedy

Residential projects:

Some states have specific residential construction retainage rules
Consumer protection statutes may limit retainage
Lien rights differ from commercial construction in many states

Compliance Framework for Multi-State GCs

To avoid the situation in the case study, GCs operating across state lines need a structured approach:

Before project start:

Identify the applicable state's retainage statutes for the project type
Determine the maximum allowable retention percentage
Check for escrow requirements and set up accounts if needed
Review release deadlines and penalty provisions
Adjust subcontract retainage language to comply with the specific state

During construction:

Apply the correct retention percentage from the first pay application
Track the 50% completion milestone for each subcontract
Reduce retention when the milestone is reached (per contract or statute)
Calculate and accrue interest on retained funds where required

At sub completion:

Begin the retention release clock when the sub's scope is complete
Process release within the statutory deadline
Collect final lien waivers before releasing funds
Pay any accrued interest with the retention release
Document the release with date stamps for audit trail

Frequently Asked Questions

Which state's retainage law applies if the sub is incorporated in a different state than the project?

The project location governs. Retainage laws are tied to where the construction work is performed, not where the GC or sub is incorporated. A sub based in Georgia working on a California project must receive California retainage treatment.

Can the GC and sub agree to waive state retainage protections?

In most states, no. Retainage caps and prompt-payment provisions on public projects are mandatory and cannot be waived by contract. On private projects, some states allow contractual modification of retainage terms, while others treat their retainage statutes as non-waivable.

How do I track different retainage rules across multiple states simultaneously?

Configure your pay application system to apply state-specific retention rules at the project level. Each project should have a retainage profile that includes the applicable percentage, reduction triggers, release deadlines, and escrow requirements based on the project's state and type (public/private).

What happens if I discover I have been over-retaining on a project?

Immediately reduce the retainage percentage to the correct amount and retroactively recalculate all prior pay applications. Issue a corrective payment for the over-retained amount plus any applicable interest. Document the correction and the cause. Consider whether the subcontractor is entitled to attorney fees if they had to request the correction.

Are there federal retainage standards that preempt state law?

On federal projects, FAR retainage provisions apply. These do not preempt state law on state-funded projects. There is no federal preemption for private projects. Each project follows the retainage law of the state where it is located, with federal rules overlaying on federally funded work.

How do retainage bonds work as an alternative to cash retention?

A retainage bond (or retention bond) is a surety bond that the sub purchases to guarantee completion of their work. The bond replaces the cash withheld by the GC. The sub receives full payment on each pay application, and the GC holds the bond as security instead. If the sub defaults, the GC makes a claim against the bond. Typical cost: 1-2% of the bond amount annually.

Managing retainage rules across multiple states is too complex for spreadsheets. Schedule a demo to see how SubcontractorAudit enforces state-specific retainage rules automatically, calculates interest obligations, and tracks release deadlines per subcontract.