Payment Dispute Guide for Contractors

Why Clients Don't Pay — And What It Means for Your Case

Understanding the reason for non-payment determines your best legal path. Each situation calls for a different response.

Disputing the quality of work Document your completion with photos, sign-off emails, and inspection records. A demand letter with evidence often resolves this quickly. If the dispute is unreasonable, file a lien and let the courts decide.

Cash flow problems The client may genuinely not have the funds. Negotiate a payment plan in writing — but file a mechanic's lien immediately to secure your position regardless.

Disputing the contract amount Reference the signed contract and any written change orders. Verbal agreements are difficult to enforce. A lien forces the dispute into the open and often leads to a negotiated settlement.

Waiting for their client to pay them "Pay-when-paid" clauses may limit your rights against the general contractor — but a mechanic's lien on the property bypasses this entirely. The property owner is liable regardless of what the GC tells you.

Simply ignoring invoices This is the most common scenario. A formal demand letter by certified mail resolves most of these cases. If ignored, file a lien immediately.

Your Legal Options

Demand Letter

The first formal step. A written demand creates a legal record, signals seriousness, and resolves approximately 73% of payment disputes without further action. Cost: essentially free. Timeline: 1–2 weeks.

Mechanic's Lien

The most powerful tool for private projects. A lien attaches to the property title — the owner cannot sell or refinance until the debt is paid. Once filed, most owners pay within days to clear the title. Cost: $200–$500 filing fee. Timeline: immediate pressure.

Bond Claim

For public works and bonded private projects. You can claim directly against the payment bond — the surety company is obligated to pay valid claims. This works even when the general contractor or owner has no funds. Cost: low. Timeline: 30–90 days.

Small Claims Court

For amounts under your state's limit (typically $10,000–$25,000). No attorney required. Fast and inexpensive. File in the court of the county where the project was located. Cost: $30–$200 filing fee. Timeline: 1–3 months.

Civil Lawsuit

For larger amounts or complex disputes. Requires an attorney. Can take 6–18 months. Attorney fees may be recoverable if your contract includes a prevailing party clause. Consider this only after other options are exhausted.

Step-by-Step: What to Do Right Now

Step 1: Document everything immediately

Gather your signed contract, all change orders, invoices, completion photos, text messages, and emails. Without documentation, your claim is significantly weakened. Do this before doing anything else.

Step 2: Send a formal demand letter

Send by certified mail. Give a specific payment deadline (10–14 days). State clearly what legal action you will take if unpaid. Most disputes end here.

Step 3: Check your lien deadline

Mechanic's lien deadlines are strict and state-specific — ranging from 30 days to 8 months from project completion. If your deadline is approaching, file the lien before taking any other action.

Step 4: File a mechanic's lien (private projects)

For private projects, record the lien with the county recorder. This creates immediate pressure. Most owners respond within days to protect their property title.

Step 5: Enforce or escalate

If the lien doesn't resolve it within 30–60 days, you have two options: enforce the lien through a foreclosure action, or file a separate lawsuit. At this point, consult with a construction attorney.

Evidence That Wins Payment Disputes

The strength of your case depends on documentation. Gather and organize:

• Signed original contract
• All signed change orders (unsigned = unenforceable in most states)
• Final completion photos with timestamps
• Delivery receipts for all materials
• All invoices with dates
• Written approvals or sign-offs from the client
• Your active contractor license
• Project permit records
• All relevant text messages and emails

Timeline: Payment Recovery

Most payment disputes follow this arc:

• Week 1: Invoice due. Follow up by phone or email.
• Weeks 2–3: Send formal demand letter by certified mail.
• Weeks 3–6: If no response, file mechanic's lien (check your state deadline).
• Weeks 6–12: Most cases resolve after lien is filed. If not, prepare for court.

Common Mistakes Contractors Make

• Waiting too long — Every day you wait, the lien deadline gets closer. Act quickly.
• No preliminary notice — Many states require preliminary notice early in the project. If you missed it, you may have lost lien rights.
• No written change orders — Verbal agreements are nearly impossible to enforce. Always get changes in writing.
• Accepting partial payments without agreement — Accepting partial payment may imply you agreed to a reduced amount.
• Threatening without following through — If you say you will file a lien, file it. Empty threats reduce your credibility.

Get Help Analyzing Your Situation

Kayron analyzes your specific situation — contract type, project state, amount owed, timeline — and tells you exactly which legal path gives you the best chance of recovery.