Send a clear invoice first, then follow up in writing

The fastest way to collect payment is to send an invoice before the customer owes you anything. An invoice should state what you provided, the amount due, the date it was due, and how to pay you. Email it immediately after the work is done or the sale is complete. If payment doesn't arrive by the due date, send a written reminder—email counts—within three to five days. A second reminder after another week often brings payment without further action.

If the customer still hasn't paid after two reminders, move to a phone call or in-person conversation. This is where you learn whether the customer forgot, disputes the charge, or cannot pay right now. Many payment delays are simple oversights. Others are disputes you can resolve on the spot by adjusting the invoice, providing proof of work, or agreeing to a payment plan.

Keep records of every communication: the date you sent the invoice, the date of each reminder, and notes on any conversation about the debt. These records matter if you later need to pursue the debt in small claims court or through a collection agency.

Key Takeaways

  • Send an invoice immediately after providing the service or product, stating the amount, due date, and payment method clearly.
  • Follow up in writing within three to five days if payment is late, then again after another week if needed.
  • Call or meet the customer to find out why payment is late—many delays are oversights or disputes you can resolve directly.
  • Keep dated records of every invoice, reminder, and conversation in case you need to pursue the debt later.
  • Offer a payment plan or partial payment if the customer cannot pay in full, and get the agreement in writing.

Decide whether to offer a payment plan

If a customer says they cannot pay the full amount right now, you have two choices: refuse and risk never collecting, or offer a payment plan. A payment plan is an agreement to accept partial payments over time instead of the full amount at once.

Before you agree, decide how many payments you will accept and when each is due. A common structure is half now and half in 30 days, or four equal payments spread over two months. Write down the agreement—email is fine—and have the customer confirm it. Include the total amount owed, each payment amount, each due date, and what happens if a payment is missed.

Payment plans work best when the customer has a real reason for the delay (a paycheck is coming, insurance is processing a claim) rather than a pattern of not paying. If a customer has already missed one deadline, a payment plan is riskier and you may want to require payment upfront before doing more work.

Use a payment method that reduces your risk

The payment method you accept affects how easily you can collect and what happens if the payment fails. Credit cards and debit cards are fastest—payment arrives in your account within one to three business days—but you pay a processing fee of 2 to 3 percent of the amount. Bank transfers (ACH) are cheaper (often under 1 percent) but take three to five business days and can be reversed by the customer for up to 60 days after the transfer.

Checks are slow (five to seven business days to clear) and can bounce, leaving you with a returned check fee from your bank. Cash is immediate but risky if you meet in person—get a receipt signed by the customer stating the amount and date.

For customers you do not know well or who have a history of late payment, require payment by credit card or debit card before you start work. For regular customers, you can offer multiple payment methods and accept whichever is most convenient for them.

Know when to stop pursuing the debt yourself

After two written reminders and a phone call, if the customer still will not pay and refuses to discuss a payment plan, you have reached the point where further effort on your part costs more than the debt is worth. At this stage, you can either write off the loss or pursue it through a collection agency or small claims court.

Small claims court is an option if the debt is under a certain amount—usually $5,000 to $10,000 depending on your state. You file a claim, pay a filing fee (typically $50 to $200), and if you win, the court orders the customer to pay. The customer can appeal, and even if you win, collecting the judgment can be difficult if the customer has no money or assets.

Collection agencies buy your debt for a percentage of what you are owed (often 30 to 50 percent) and pursue the customer themselves. You get paid immediately but receive less than the full amount. Collection agencies can report the debt to credit bureaus, which damages the customer's credit score and sometimes motivates payment.

Before you pursue either option, make sure the debt is real and the amount is correct. If the customer has a legitimate dispute about what they owe, a court or collection agency will not help you.

Document everything in case you need proof later

Keep a file for each customer that includes the original invoice, any emails or messages about the debt, notes on phone calls (date, time, what was said), and copies of any payment plan agreement. If you end up in small claims court or dealing with a collection agency, you will need to prove that the customer owes you money and that you made a reasonable effort to collect it.

If you use accounting software or invoicing software, most of these tools keep a record of invoices and payment status automatically. If you work with paper or email, create a simple spreadsheet with the customer name, invoice date, amount, due date, and status (paid, overdue, in dispute, payment plan). Update it every time you send a reminder or receive a payment.

Handle disputes about the amount or quality of work

Sometimes a customer refuses to pay because they say the work was not done correctly, was incomplete, or does not match what was promised. Before you pursue the debt, listen to the complaint and decide whether it is valid.

If the customer has a point—the work was rushed, you missed something, the product arrived damaged—offer to fix it or refund part of the payment. This is often faster and cheaper than pursuing a full debt. Get the customer to confirm in writing that the adjustment settles the debt.

If you believe the complaint is unfounded, explain your position in writing and ask the customer to explain their concern in detail. Sometimes a customer is confused about what they ordered or what was included. Clearing up the confusion often leads to payment. If the customer still refuses and you believe you are right, you can pursue the debt, but be aware that a judge or collection agency may side with the customer if the dispute is unclear.

Prevent payment problems before they start

The easiest payment to collect is one that never becomes overdue. Before you start work or deliver a product, be clear about the price, what is included, and when payment is due. If the job is large or the customer is new, ask for a deposit upfront—typically 25 to 50 percent of the total. This shows the customer is serious and gives you money to cover your costs if they back out.

For ongoing work or repeat customers, set a regular payment schedule—for example, payment due on the 15th of each month—and stick to it. Consistency makes it easier for the customer to remember and budget for the payment.

If you work with businesses rather than individuals, ask for a purchase order before you start work. A purchase order is a document the customer's accounting department issues that commits them to paying you. It makes collection much easier because you can pursue the debt through their accounts payable system rather than chasing an individual.

Frequently Asked Questions

What should I do if a customer says they will pay next week but keeps delaying?

After the second delay, stop accepting promises and ask for a specific written commitment with a date. If they miss that date, move to a payment plan with smaller amounts due more frequently, or stop doing work for them until they pay. Document each promise and delay in writing so you have a record if you pursue the debt later.

Can I charge interest or a late fee if payment is overdue?

Yes, but only if you stated the fee in the original invoice or contract. Late fees are typically 1 to 2 percent of the amount owed per month, or a flat fee of $25 to $50. Some states cap how much interest you can charge, so check your state's rules before adding a fee to an invoice.

What if a customer pays by check and it bounces?

Contact the customer immediately and ask them to issue a new check or pay by another method. Your bank will charge you a returned check fee (usually $25 to $35), which you can ask the customer to reimburse. If they refuse or the second check also bounces, treat it as non-payment and pursue the debt as you would any other late payment.

Should I keep working for a customer who is already behind on payment?

No. Stop work until they pay what they owe or agree to a payment plan. If you continue working, you are giving them more credit and increasing the amount at risk. Make it clear that future work depends on current payment being up to date.

How long can I pursue a debt before it is too old to collect?

This depends on your state and the type of debt. Most states allow you to pursue a debt for three to six years, but the clock starts when the debt was created, not when you last contacted the customer. Check your state's statute of limitations to know your deadline, and do not wait too long to pursue a debt in court.