Holdback Amount Calculator

Holdback = total contract × holdback % (typically 10%). Released after lien period and punch list complete.

Inputs

Statutory in many states/provinces (Canada: 10% by law).

Result

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General calculation reads

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How to use this calculator

  • Enter total contract value.
  • Set holdback % — 10% standard in most jurisdictions.
  • Track this amount separately from progress payments.
  • Release only after lien period + punch list complete.

About this calculator

Holdback (also called retainage) is the share of each progress payment that the owner keeps until lien rights expire and the project is fully complete. It's the homeowner's only real leverage to get punch-list items finished. Canada's Construction Lien Acts mandate 10% holdback by law. US states vary: Texas allows 10% retainage; California prohibits >5% on private work; many states require funded retainage accounts. Release the holdback only after: (1) certificate of completion, (2) punch list signed off, (3) lien period elapsed, (4) final lien waivers received from GC + all material suppliers.

Frequently asked

Is 10% legally required?+
In Canada (varies by province), yes. In US: depends on state and contract type. Many private contracts use 5-10% by convention.
When is it released?+
After: lien period elapses (35-60 days post-completion in most US states), punch list signed, final lien waivers from GC + subs.
Can the contractor refuse holdback?+
They can negotiate, but most reputable GCs accept 5-10% as standard. Refusal is a red flag.
What if punch list is never finished?+
You can hire someone else to complete punch list and pay them from holdback. Keep documented evidence of the unfinished items.
Holdback vs. final payment?+
Final payment (if scheduled) is typically 10-15% paid at substantial completion. Holdback is held longer (past lien period). Some contracts combine them.

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