How to collect unpaid invoices without losing your temper or your rights

Every service business carries some unpaid invoices. A few customers forget, some are waiting on a paycheck, some are unhappy and have not said so, and a small number never intended to pay. The difference between a business that loses money to this and one that does not is rarely a tougher personality. It is a routine that starts before the job and runs the same way every time.

This guide covers that routine, from prevention to the last resort. It touches on debt collection law in general terms; it is not legal advice. Collection practices are regulated federally and by each state, so check your state's rules before you escalate, and talk to an attorney about anything involving a lawsuit or a lien.

Stop late invoices before the job starts

The cheapest collection is the one you never have to do. Before the job:

• Put payment terms in writing. Due date, accepted methods, deposit and any late fee, in the quote the customer approves. Our guide on what to put in a service contract covers the wording.
• Take a deposit on larger jobs and special orders, so the customer has a stake in finishing.
• Collect at completion. For residential one-time work, the best time to get paid is while the crew is packing up and the customer is looking at the finished job. A tap-to-pay reader or a text-to-pay link makes that normal.
• Keep a card on file for recurring service, with clear authorization. The card on file and autopay guide explains how.
• Check new commercial accounts. Ask property managers and businesses for their payment process, who approves invoices and what they need on them (purchase order, W-9, certificate of insurance). Many slow commercial payments are missing paperwork.

Send an invoice that is easy to pay

An invoice that confuses the customer gets set aside. A good invoice goes out the same day the work is done and shows:

• Your business name and contact details, and the customer's name and service address.
• The date of service and a plain description that matches the approved quote.
• Any approved changes, listed separately.
• The amount due, the due date and how to pay, ideally with a pay-now link.
• Photos of the finished work, when they help.

Most late payers are not refusing to pay. They are busy. A link they can tap in the grocery store line is the difference between paid today and paid "when I get to it."

A reminder schedule that runs itself

Decide your schedule once and let your software send it. A typical residential sequence:

Commercial accounts often pay on 30-day cycles, so adjust the timing to the terms you agreed. The rule is the same: every invoice gets the sequence, nobody falls through the cracks, and the office does not have to remember. A custom CRM can send these reminders automatically and stop them the moment the payment lands, so a paid customer never gets a nagging text.

Make the call before you write the letter

A phone call solves more past-due invoices than any letter, because it uncovers the reason. Keep it short and neutral:

"Hi, this is Sam from the company that cleaned your gutters on the 12th. I'm calling about the invoice for that job, which is a couple of weeks past due. Did it come through all right, and was everything good with the work?"

Then listen. You will usually hear one of four things:

• "I forgot." Send the pay link while you are on the phone.
• "Money is tight." Offer a short payment plan in writing (see below).
• "I'm not happy with the work." This is a complaint, not a collection problem. Handle it as one: our guide on handling customer complaints covers the conversation. Fixing a small problem often releases the whole payment.
• "I'm not paying." Stay calm, take notes, and move to the written demand.

Write down the date, who you spoke with and what was said. Those notes matter if this goes further.

The written demand and the payment plan

If the call does not resolve it, send a demand letter by email and by mail with tracking. It should state the facts and nothing else: the work done and the date, the amount owed, what you have already done to collect, a specific date to pay by, how to pay, and what you will do next if payment does not arrive. Attach the invoice and the signed quote.

Only list next steps you actually intend to take and are legally able to take. Threatening a lawsuit you will never file, or a lien you have no right to, damages your credibility and can create legal problems of its own.

A payment plan is a reasonable tool when the customer wants to pay and cannot do it at once. Put it in writing: the amounts, the dates, the payment method (card on file for automatic charges works well), and what happens if a payment is missed. Getting paid in three installments beats a write-off.

What debt collection law means for a small business

The federal Fair Debt Collection Practices Act (FDCPA) applies mainly to third-party debt collectors collecting consumer debts, meaning debts for personal, family or household purposes. The Consumer Financial Protection Bureau explains that the FDCPA does not cover business debts and does not generally cover collection by the original creditor, the business that was owed the money.

That does not mean anything goes when you collect your own invoices. The CFPB notes that most states have their own debt collection laws, some of which cover original creditors, and that state unfair and deceptive practices laws may also apply. A sensible rule for your own collections is to behave as if the FDCPA's standards applied to you: no calls at odd hours, no repeated calls meant to harass, no threats of action you do not intend to take, and no telling neighbors, employers or anyone else about the debt.

If you hand an account to a collection agency, the agency is the kind of business the FDCPA was written for. Choose one that collects consumer debts in your state, and ask how it complies with federal and state law. How you treat a past-due customer reflects on your company long after the invoice is closed.

Last resorts: small claims, liens and agencies

• Small claims court. Built for disputes like an unpaid service invoice, usually without lawyers. Dollar limits, filing fees and procedures vary by state and sometimes by county. Winning a judgment is not the same as being paid, so ask the court how judgments are collected where you are.
• Mechanics liens. If your work improved real property, you may have lien rights, but only if you followed your state's notice rules and deadlines from the start. Read mechanics liens explained before you need it.
• Collection agencies. Agencies typically keep a share of what they collect. Worth it for accounts you have given up on, and the agency takes on the compliance burden.
• Stop work. For recurring customers, pausing service until the balance is paid is often the simplest step. Say so plainly in your terms.

When to write it off

Some invoices are not worth chasing further. Decide on a cut-off and close the account in your books. Know the tax point first: the IRS says in Topic 453 that cash method taxpayers generally cannot take a bad debt deduction for unpaid fees and similar income, because that income was never reported. Business bad debts are deductible only if the amount was included in gross income. Ask your accountant which method your business uses; our bookkeeping guide explains the basics.

Then flag the customer in your system so nobody books them again without payment up front.

Frequently asked questions