A General Contractor Disputes Your Invoice: Decision Tree
Why this matters
A short-paid pay application is a test of your paperwork, not your patience. When a GC disputes your invoice, the outcome is decided almost entirely by what you can document and what deadlines you protect, not by who argues hardest. The two ways subs lose here are letting a friendly "we will work it out" negotiation run past a hard lien deadline, and having no record to back the work. This tree keeps you on the right side of both.
Protect the clock before you negotiate
Before anything else, calendar your deadlines. Mechanic's lien and payment-bond claim rights have hard cutoffs that vary by state, often measured in weeks to a few months from your last day on the job or last material delivery, and missing one can erase your strongest leverage. A dispute conversation that drifts past that date leaves you negotiating with nothing behind you.
- Find your state's deadline for a lien or bond claim and write it on the calendar now.
- Do not let a promise to resolve it later push you past that date. Preserving the right is not the same as filing; you can protect the deadline and still settle amicably.
Start here: what are they actually disputing?
Sort the dispute so you answer the real question, not a general sense of "they did not pay."
- A short-pay with no clear reason is usually a stall or a cash problem, not a dispute.
- A back-charge is a deduction for cleanup, damage, or fixing another trade's work.
- A scope or quantity dispute claims the work was not in your scope or the count is wrong.
- A quality or defect claim rejects the work itself.
Each has a different document that settles it.
| Dispute type | Document that settles it |
|---|---|
| Unexplained short-pay | Signed field tickets and approved pay application |
| Back-charge | Contract notice-and-cure clause, your daily reports and photos |
| Scope or quantity | The subcontract scope and written, approved change orders |
| Quality or defect | Your completion sign-off, inspection records, photos |
Pull your paper before you respond
The dispute is won or lost on the record, so gather it before you say a word back.
- Daily reports, signed field tickets, before-and-after photos, delivery records.
- Every approved change order and the RFI trail behind any extra work.
- If your paper clearly supports the invoice and they still will not pay, this is a stall; escalate on the facts.
- If your paper is thin or the extra work was never authorized in writing, read that honestly. You may have a weaker position than you feel, and knowing it shapes how hard you push.
Handle a back-charge
A back-charge has to earn its way onto your check.
- Demand it in writing, with documentation of the cost and the reason.
- Check the subcontract. Most require written notice and a chance to cure before a back-charge is valid. An undocumented, unilateral deduction usually does not meet that bar; cite the notice clause and push back.
Handle a scope or quantity dispute
Go to the contract and the change-order file.
- If the extra work was directed and authorized in writing, you are owed it; present the approved change order.
- If it rests on a verbal directive, this is where verbal directives die. Make the strongest case you can from your daily reports, and bank the lesson: get every directive in writing going forward.
Escalate on facts, in order
Work the ladder only as far as you need.
- Talk to the project manager or a decision-maker, and calmly present the documentation. Most disputes end here.
- Put the demand in writing with the paper attached, referencing the contract's dispute-resolution clause.
- Serve any required preliminary or lien notice within the deadline to preserve your rights. This is leverage, and it is often what gets a stalled invoice moving.
- Pursue mediation or arbitration per the contract, or file the lien or bond claim before the cutoff.
- Stop work only if the contract allows it for non-payment. Many bar it, and a wrongful stop-work puts you in breach; confirm before you pull off.
The rule to keep
Verify your paper, protect the deadline, escalate on facts and not emotion. A GC who cannot produce a documented reason to short-pay is stalling, and stalls fold when you show the record and the clock at the same time.
Recap
- Calendar your lien and bond deadlines before you negotiate.
- Identify the dispute type and the document that settles it.
- Pull your full record before responding.
- Reject undocumented back-charges under the notice-and-cure clause.
- Escalate in order, preserving your rights before the cutoff.
References
- State mechanic's lien and payment-bond claim statutes and deadlines
- ConsensusDocs and AIA subcontract dispute-resolution and back-charge provisions
- Trade-standard practice for pay applications and change-order documentation
- See related: Documenting Commercial Work to Survive a Payment Dispute; The Red Flags in a Commercial Contract a Sub Should Catch