Reference Source

Massachusetts

For Massachusetts, public project retainage cap (%) is 5%; private project retainage cap (%) is 5% (contracts ≥$3M, excluding residential 1–4 units); release deadline is not later than 14 days after substantial completion, notice submitted; retainage due per contract terms; escrow required is no; milestone reduction is none, recorded from its source on 2026-08-17.

State
Massachusetts
Public project retainage cap (%)
5%
Private project retainage cap (%)
5% (contracts ≥$3M, excluding residential 1–4 units)
Release deadline
not later than 14 days after substantial completion, notice submitted; retainage due per contract terms
Escrow required
no verified
Milestone reduction
none
Statutory citation
Mass. Gen. Laws ch. 149, § 29F our reading
Sourcecodes.findlaw.com
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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

No contract for construction shall include retainage that exceeds 5 per cent of any progress payment.

codes.findlaw.com, retrieved 2026-08-17

Source

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