How to Get Paid: Payment Terms, Due Dates and Follow-Ups

This article first appeared on Invoala.

The reason clients pay late is almost never that they didn't want to pay. It's that nobody told them exactly when, how, or to whom — and then nobody followed up. Getting paid is a paperwork problem before it's a people problem. Fix the paperwork, and most of the chasing stops.

Here's the practical version: what to put in your payment terms, how to set a due date clients respect, and how to follow up on an unpaid invoice without sounding like a debt collector.

What belongs in your payment terms (before you send anything)

Payment terms are the written answer to four questions: how much, by when, how, and what happens if it's late. If a client has to guess any of them, they'll default to paying whenever their next payment run happens — which is typically the end of the month, or whenever their accountant gets around to it.

Include these in the contract or quote, not just on the invoice:

• The due date or terms shorthand. "Net 30" means the invoice is due 30 days after the invoice date. "Due on receipt" means immediately. Net 15 and Net 45 exist too. Pick one and use the same term on every project.
• Deposit or upfront portion. For project work, a deposit of some percentage before work starts is common, though how much is normal depends on your industry and the client's size. Fixed-fee work usually justifies a larger upfront slice than hourly.
• Accepted payment methods and the exact details. Bank transfer details, or a payment link. Don't make them ask.
• Who to send remittance to and who to ask questions of. A name and an email.
• What happens late. A late fee or interest charge. Whether you can actually charge it, and how much, depends on your country and sometimes your state or province — some jurisdictions cap it, others require it to be agreed in writing in advance. Describe it in your terms, then check your local rules before relying on it.

Two smaller things that matter more than people expect: put the client's purchase order number on the invoice if they use POs, and address the invoice to the legal entity that's actually paying. Invoices sent to the wrong department are a very common cause of "we never received it."

Photo by Kelly Sikkema on Unsplash

How to set an invoice due date clients actually respect

A due date gets respected when it's unambiguous, short enough to stay on someone's radar, and attached to a document with everything needed to pay.

A few specifics that help:

• Anchor the due date to a stated event. "Due within 14 days of receipt of this invoice" is clearer than a bare date, because it survives the invoice sitting in a spam folder for three days.
• Shorter is generally better than longer. Net 30 is the default many companies assume, but 14 days is increasingly workable for freelancers. Longer terms mean more time for your invoice to fall off the approver's to-do list.
• Avoid dates that land on a weekend or public holiday. If the 30th is a Saturday, say the following Tuesday. You lose nothing and remove an excuse.
• State the date in the invoice header, not in a footnote. It should be one of the first things visible.
• Send it the day the work is done or the milestone is hit. The invoice that arrives late is paid late.
• Bill milestones as you hit them instead of one big invoice at the end. Smaller, more frequent invoices are typically easier for a client to approve than a single large one.

If you're invoicing internationally, remember that public holidays, banking cut-offs and standard terms differ by country — check what's normal for your client's location rather than assuming yours applies.

Example: invoicing $2,400 with 8% sales tax on Net 14 terms

Say you finish a design project on 3 March and invoice $2,400 for your fee, on Net 14, with 8% sales tax.

• Fee: $2,400.00
• Sales tax at 8%: $192.00
• Total due: $2,592.00
• Invoice date: 3 March
• Due date: 17 March (Net 14, and it falls on a Tuesday that year — no adjustment needed)

Now add a late fee clause of 1.5% per month on overdue amounts. If payment lands on 17 April — 31 days late — one month's fee is $38.88 (1.5% of $2,592.00), bringing the balance to $2,630.88.

Whether you can charge that $38.88 depends on where you and the client are. In some countries a late fee is enforceable only if it was agreed in writing beforehand; in others there's a statutory default rate you can rely on instead. Check your local rules, and if the amount is small, sometimes the stronger move is to charge it once, clearly, and keep the relationship. Note too that sales tax treatment of your own services varies enormously — some services are exempt in some jurisdictions, and cross-border work often has different rules again. Confirm the rate and whether it applies with your local tax authority or an accountant before you put a number on an invoice.

If you're in a country where quotes should list tax separately, do that on the estimate too, so the final invoice never surprises anyone.

Photo by SumUp on Unsplash

Following up on unpaid invoices without the drama

Most invoices don't need chasing. The ones that do usually need a short, specific, escalating sequence — and it should start before the due date, not after.

A sequence that tends to work:

1. A few days before the due date: a brief "just a reminder this is due Friday, here's the invoice again" note. This catches the invoices that were never entered into the client's system.
2. The day after the due date: polite, factual, assume good faith. Confirm the invoice number, amount, and due date, and ask if anything is needed to process it.
3. One week overdue: ask directly who the right contact is for accounts payable, and whether there's an approval step you can help with.
4. Two to three weeks overdue: state the position plainly, restate the late fee if your terms include one, and set a specific date you need payment by.
5. Beyond that: pause new work on the account, or escalate to the contact who signed the contract. What you're legally able to do next — small claims, collections, statutory interest — varies by country, so check the official source for your jurisdiction rather than acting on a forum post.

Three details make this much less uncomfortable. Keep every message to a few sentences. Always attach the invoice again, because "I can't find it" is the most common reply and you can eliminate it instantly. And write the reminder the way you'd write it if you expected them to pay tomorrow — because usually they will.

Tracking which invoices are actually paid, due, or overdue

Chasing breaks down when you're working from memory. You need one list showing, for every invoice: client, amount, date sent, due date, and status.

A simple spreadsheet works. So does a folder of PDFs with a naming convention that sorts by due date. The point isn't the tool, it's that you can answer "what's overdue right now?" in five seconds, because the invoices you forget are the ones that go unpaid.

If you'd rather not maintain the list by hand, invoice payment tracking is the part of this that software handles well. Whichever route you take, review the list on a fixed day each week. That single habit catches more late payments than any clever template.

How Invoala helps

Everything above is paperwork and reminders. Invoala is a free invoice generator built for exactly that step, and here's how it maps onto the process in this post:

1. Set your terms once, on the document. Open the generator, fill the form with your business details, the client's details, the line items, and your payment terms — due date, accepted payment methods, and your late fee wording if you use one.
2. Add tax as a separate line if your jurisdiction requires it, so the total is unambiguous.
3. Download an A4-accurate PDF. No sign-up to create and download it, and no watermark on the output, which matters if you're sending invoices to a client's accounts payable department and don't want them looking provisional.
4. Send it the day the work is done, and keep a copy in your own records with the due date in the filename.
5. Work from a list. Use the payment tracking view to keep paid, due, and overdue invoices in one place instead of reconstructing it from your inbox, and automated payment reminders to handle the day-before and day-after nudges so you're not drafting them from scratch each time.

If you want a starting point before you fill anything in, the free invoice templates cover common layouts, and there's a step-by-step guide to creating an invoice if you'd rather see the fields explained first. Freelancers with multiple clients may find the freelancer-specific notes closer to their situation.

The short version

Decide your terms before the project starts and write them down. Put an unambiguous due date near the top of every invoice, anchor it to a stated event, and don't let it land on a weekend. Send the invoice as soon as the work is done. Then keep one list of what's paid, due, and overdue, and follow up on a schedule that starts before the due date — short messages, invoice always reattached, escalating slowly. Do that and getting paid stops being the stressful part of the job.

Originally published at How to Get Paid: Payment Terms, Due Dates and Follow-Ups. More guides at Invoala.