01
Find the agreement before the invoice
Start with the contract, quote, purchase order, scope, email approval, terms and conditions, change orders, or message thread showing what the customer accepted. If the agreement was oral, write down who said what, when, and who else heard it.
- Signed contract or quote
- Scope and change orders
- Terms, due date, and approval trail
02
Proof of delivery is the strongest pressure point
A lawyer or court may ask whether the work was performed, goods were delivered, milestones were accepted, defects were reported, or the customer used the work. Save delivery receipts, completion photos, login records, project messages, and acceptance emails.
03
Separate nonpayment from quality disputes
A customer may claim poor work, late delivery, missing scope, offset, warranty, or no authority to approve payment. List each objection and the record that answers it. A strong demand letter should address real disputes without exaggerating.
04
Collection language must stay professional
A demand letter can be firm, specific, and deadline-based without threats that are not legally supported. Avoid criminal accusations, public shaming, false legal citations, or inflated fees unless the contract and local law support them.
05
Venue, interest, fees, and limitation periods matter
The contract may contain governing law, venue, arbitration, late fee, interest, attorney fee, notice, or dispute-resolution clauses. These can affect whether the next step is negotiation, small claims, arbitration, or a lawsuit.
Business file
Contract and business routes connected to this page
Contract problems usually move from promise, to performance, to payment, to remedy. The best next page depends on whether the user is reviewing terms, collecting money, responding to breach, or preparing a demand.
Use this page when the main business invoice non payment question turns on unpaid invoices for services, goods, consulting, construction, creative work, or professional work. It keeps the search close to unpaid invoice lawyer without mixing it with unrelated legal issues.
02Clients disputing quality, scope, delivery, timing, pricing, or authority to approve workUse this page when the main business invoice non payment question turns on clients disputing quality, scope, delivery, timing, pricing, or authority to approve work. It keeps the search close to contract lawyer without mixing it with unrelated legal issues.
03Businesses considering a demand letter, negotiation, small claims, collection action, or contract lawyerUse this page when the main business invoice non payment question turns on businesses considering a demand letter, negotiation, small claims, collection action, or contract lawyer. It keeps the search close to demand letter without mixing it with unrelated legal issues.
Proof
Business records that keep the dispute grounded
A detailed first message should not attach every private document at once. It should name the records that exist, explain the dates, and keep originals safe until the user knows who is reviewing them and why.
Local rights
Why forum, venue, and business location matter
A contract may point to a particular court, arbitration forum, state, province, or country. Work location, party location, payment location, and written venue clauses can all change the practical route.
AskLocalLaw should use the user's selected or allowed location to frame the information, then remind the reader that official sources, current forms, and local lawyer review matter before relying on any deadline or remedy.
Consultation
Questions to bring to a contract lawyer
A contract lawyer may help when the invoice is large, the customer disputes performance, the contract has arbitration or fee clauses, a demand letter needs care, or litigation is likely.