How to Collect When a Customer Won't Pay Final Invoice

Three months after I stopped working for Whitman Builders, I got a letter from a bankruptcy trustee in Marlborough. Sixty-one thousand dollars owed. I collected twenty-three thousand and change. Staying patient cost me thirty-eight thousand dollars.

That's what it cost. I want to be specific about that number.

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The Phone Call Won't Get You Paid

Here's what happens. You call. They don't answer. You text. They say they'll handle it. You email a reminder. They say there's an issue with the punch list. You call again. You stay professional.

And while you're doing that, you're being managed.

The customer has figured out you won't act. Every Friday you wait, that bet gets confirmed. I figured this out about Whitman in late 2011, too late to do anything with it. He wasn't disorganized. He was paying whoever made the most credible threat with their money, and I was the line item he'd pushed to the bottom because I'd shown him I'd sit there.

Meanwhile, if you don't have 90 days of operating expenses in reserve, that unpaid invoice is already a threat to your guys' paychecks. Not eventually. Right now.

The phone call feels like action. It ain't. It's just delay.

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The Clock Is Already Running and You Probably Don't Know It

Every state has a hard deadline for filing a mechanics lien, measured from your last date of work on the job. Not the invoice date. Not the payment due date. The last day you had tools on the project.

Pennsylvania is six months from last work. Massachusetts is 90 days for subcontractors on private projects. Some states are shorter. A missed deadline turns your lien right into a letter nobody reads.

I've had guys in my code class at the voc school here in Worcester who thought they had a year. They didn't.

Here's the pattern I've watched more than once: guy finishes a job in April, customer won't pay, he calls through May, texts through June, by August he's asking his brother-in-law if he knows a lawyer, September he actually calls one. Lawyer asks when last work was. April. Lawyer says the window closed in July. Now what?

Nothing. That's what.

Past 75 days, stop calling it slow pay. Call it a collection problem, because the response is different. A slow-paying customer gets a second call. A collection problem gets a written demand with a deadline, and you look up the lien clock the same day.

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File the Preliminary Notice Before You Think You Need It

A preliminary notice — the name varies by state, sometimes it's a notice of intent to lien, sometimes just a pre-lien notice — is not the nuclear option. It is standard. And the thing the prelim does that a phone call can't: it tells a GC you know the process. That changes what happens next.

I've watched GCs stretch payment past 60 days for years. It's not their cash flow — they've got money. It's a free credit line running on your labor. The framer gets paid because the framer pulled his crew. The roofer gets paid because the roofer filed a notice. The plumber sits there waiting because the plumber doesn't want to make it weird.

File the prelim first. Then pick up the phone.

In most states the prelim costs nothing. You can do it yourself. It doesn't require a lawyer. And in my experience, money tends to appear within two weeks of a notice landing — not because the customer found the funds, but because the calculus changed.

I get asked sometimes about consultants selling collections "strategy" to small contractors. What I've actually seen is email templates and upsells. You don't need any of that. The preliminary notice is free, does more in ten days than any email sequence, and you can file it yourself before lunch.

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What Actually Happened With Whitman

Spring 2011. Whitman Builders out of Marlborough owed me $61,000 across four open jobs. I was carrying three guys, doing service and small residential remodel. Whitman was real money, and I'd worked for him before the crash.

Payments started slipping in January. Then it was waiting on the Phase Two closing. Then almost there, next Friday. Then next Friday again, and again.

I kept working. Told myself the relationship was worth protecting.

What I should have done: the day that account hit 60 days, stop work on all four jobs, pull tools off-site, send certified letters, file liens on everything still inside the window.

What I did: called. Took the meetings. Waited.

The framer got paid that spring. I know because he told me himself, over a coffee I didn't enjoy. He'd pulled his crew off a job in February and made it clear he was filing. That was the whole difference between him and me. He stopped work. I kept going.

When the bankruptcy letter came, the relationship was already gone. I'd just been the last one to figure that out. I ended up with 38 cents on the dollar and a lesson I now tell to every kid in my code class who thinks patience is professional.

Hell, I thought so too once. I was wrong.

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The Sequence

Stop work first. Day 30 past due with nothing in writing about timing — you stop. Tools off the job site. No more labor until the account is current.

Then the letter. Certified mail, return receipt. List every invoice: number, amount, date issued, date due. Give them seven days. State that you will file a mechanics lien on the property if payment isn't received. Send it to the customer's address of record and to the property address if it's a GC situation.

But actually — look up the deadline before any of this. Before you do anything else, look up your state's lien deadline and count backward from the last day you had tools on the job. If you're already past it, the sequence is different: you call a construction attorney who handles lien work, not a general practice guy.

File the notice or lien. Most states, you can do this yourself at the county recorder's office. Some have online filing. It runs somewhere between thirty and a hundred dollars depending on the county. File it before your seven-day demand deadline runs out — concurrent with the letter, not after.

Then call. Short call. Did they receive the demand? Do they intend to pay? If the answer isn't a wire transfer date, you escalate — collection attorney or small claims depending on the dollar amount.

The reason contractors run this backward — call first, letters second, file never — is it feels like escalating before you've tried to resolve it. That's the wrong way to look at it. The lien clock doesn't care about your phone calls. File to protect your position. Then talk.

I cover this at the voc school in two parts: the deadline math, and what it actually costs to skip straight to the phone. I know what skipping costs. I've already told you the number.

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What You Do Monday Morning

Don't make the call tonight angry. Angry letters have typos and threats you can't back up.

But tonight, before you go to bed: look up your state's lien deadline. Google your state name and "mechanics lien deadline subcontractor." Write the number down. Massachusetts is 90 days from last work for subcontractors on private jobs. Pennsylvania is six months. Your state is whatever it actually is, not what you assumed.

Then count backward from the last day you had tools on the job.

If you're inside the window: Monday morning, pull the invoices and write the demand. Certified mail. Invoice numbers, amounts, dates, seven-day deadline. Post office before noon.

File the notice or lien before the seven days runs, not after.

Day eight with nothing in: short call. Wire transfer date or you move to the next step.

If you're outside the window: construction attorney, Monday morning. Not a general practice guy — someone who handles lien work. Ask what you've still got.

Don't wait for next Friday. I promise you it's not coming.

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Questions I Get Asked

I finished three months ago — is it too late?

Depends on the state. Three months puts you inside the window in Pennsylvania, outside it in others. Look up the deadline tonight and count from the actual last day you had tools on the job, not the invoice date. If you're inside, file before you do anything else. If you've missed it, you're down to small claims or collection — and you need to know that before you spend money on an attorney who can't help you with the lien.

Can I file the lien myself or do I need a lawyer?

On a straightforward residential job where you're the direct contractor, usually you can file yourself. County recorder's office has the forms, some states have online filing, cost is modest. Where you need an attorney: subcontractor work with a GC layer, multiple parties claiming against the same property, or anything over $20,000 where a procedural mistake is expensive. The few hundred dollars for a construction attorney to review the filing is cheap insurance on a big job.

The customer is threatening a bad Google review if I lien their property.

File the lien. A bad review is annoying. Thirty thousand dollars you never collect is a payroll problem — ask me how I know. Some customers use the review threat deliberately because they've figured out it works on contractors who don't want the headache. Don't be the contractor who teaches them it works.

The customer says there were defects in my work — that's why they won't pay.

Ask them to put the specific defects in writing. Call or email today, ask them to send you the list. A legitimate complaint gets documented and you either fix the actual problem or prove you worked to code. A complaint invented to avoid the final invoice tends to get vague or disappear when you ask for it in writing. Don't agree in that conversation that any defect exists. Don't offer a credit before you've seen it in writing and looked at the work yourself. And file your preliminary notice while this is going on — the lien clock doesn't pause for a dispute, and asking for documentation in writing is not the same as agreeing you owe them anything.

My contract says mediation before suit — does that affect the lien?

No. File the lien regardless. The lien right comes from state law, and a contractual mediation clause doesn't touch it. What the mediation clause affects is when you can sue to enforce the lien, if it goes that far. File now to protect the position. Deal with the mediation question if and when you get to enforcement.