Reference Source

Washington

For Washington, public project retainage cap (%) is 5%; private project retainage cap (%) is no statutory cap; release deadline is 60 days after completion of all contract work; escrow required is optional; milestone reduction is contractor may request retainage be reduced to 100% of the value of work remaining, recorded from its source on 2026-08-17.

State
Washington
Public project retainage cap (%)
5%
Private project retainage cap (%)
no statutory cap
Release deadline
60 days after completion of all contract work
Escrow required
optional
Milestone reduction
contractor may request retainage be reduced to 100% of the value of work remaining
Statutory citation
RCW 60.28.011 our reading
Sourceapp.leg.wa.gov
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DatasetConstruction retainage limits by US state — maximum withholding percentages, release deadlines, escrow requirements, and public vs private distinctions with statutory citations

Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.

What the source says

public improvement contracts must provide, and public bodies must reserve, a contract retainage not to exceed five percent of the moneys earned by the contractor as a trust fund for the protection and payment of: (i) The claims of any person arising under the contract

app.leg.wa.gov, retrieved 2026-08-17

Source

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