What to check before you make the final payment

Final payment is the last moment you have any leverage. Here is the checklist to work through before the money leaves.

September 4, 2026 · 6 min read

What to check before you make the final payment

The final payment — usually the retainage — is the last leverage you will ever have on the job. After it clears, getting anybody back to finish anything depends entirely on goodwill. Spend an hour on this list first.

The punch list is genuinely closed

Not "mostly". Every item either approved by you or formally recorded as accepted-as-is. If items are still open, the honest options are to withhold a sum proportionate to the remaining work, or to agree in writing when they will be done and what happens if they are not. A properly run punch list makes this a two-minute check rather than an argument.

The contract arithmetic reconciles

  • Original contract, plus every approved change order, equals the current contract value.
  • Every payment you have made, added up, plus this final payment, equals that same figure.
  • Any extras on the final invoice have an approved change order behind them.

If those three do not agree, resolve it now. They frequently do not, usually because of informal extras.

Lien waivers, unconditional and final

From the general contractor and from every sub and supplier. This is the moment they are all obtainable and the moment they matter most. More on what to collect.

The documents that outlive the job

  1. Warranties — manufacturer warranties on materials and equipment, plus the contractor's own workmanship warranty and its duration.
  2. Operating manuals for anything mechanical: HVAC, water heater, appliances, controls.
  3. As-built drawings, if anything moved from the plans. Whoever opens a wall in ten years will need them.
  4. Permits closed and final inspections passed. An open permit follows the property, not the contractor, and surfaces at the worst possible moment: when you sell.
  5. Paint and material schedules — colours, finishes, product codes. Trivial to get now, genuinely hard later.
  6. Subcontractor contact list, so the person who installed the thing is findable when it fails.
The permit one catches people

An open permit is a defect on the property, and it is discovered by a buyer's attorney years after the contractor has moved on. Confirm every permit is closed and every final inspection passed before the last payment, and get the paperwork.

For an insurance job, one more

If the work was funded by a claim, make sure your completion packet is assembled before you release final payment — invoices, photographs and the mapping to the scope lines. That packet is what releases the recoverable depreciation still sitting with the carrier, and assembling it is far easier while the contractor is still engaged and answering the phone.

Common questions

What should I get before final payment to a contractor?

A closed punch list, reconciled contract arithmetic, unconditional final lien waivers from everyone, warranties, manuals, as-builts, closed permits with passed final inspections, and a material and colour schedule.

Can I withhold final payment for unfinished work?

Retainage exists for exactly this. Withhold an amount proportionate to the remaining work and put the reason and the completion plan in writing rather than simply not paying.

Why do open permits matter?

They attach to the property rather than the contractor, and they typically surface during a sale — years later, when the contractor is long gone.

Keep all of this in one place

Punchlist360 is the punch list, the photographs, the budget and the insurance claim file for your build — so the record exists as a by-product of doing the work. $9.99 a month, cancel any time. Contractors you invite are free.

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