Most late payments are not disputes, they are drift, so the way you invoice and follow up is what decides whether the money comes in on time or turns into a chase. A clear, complete invoice sent the moment the work is billable, with firm payment terms and a steady follow-up rhythm behind it, gets paid faster than a vague one you send whenever you get around to it. Getting paid well is a system, not a personality. Set the system up right and you rarely reach the point of demand letters and liens at all. Here is how to bill so the money shows up, and how to chase it calmly when it does not.
This is the front end. When friendly follow-up runs out of road, you step up to a formal demand letter and then the escalation ladder, which have their own guides.
What a proper invoice contains
An invoice that is easy to pay leaves the customer no reason to pause and no excuse to query. Every one should carry:
- Your full business name, address, and license or registration number where you carry one.
- The customer's name and the job address, so there is no confusion on a customer with more than one property.
- An invoice number and the date, which also matter later if you ever cite prompt-pay interest.
- A plain description of the work, matched to the contract or the agreed stage, not a one-word line.
- The amount due, broken out clearly: the work, any approved change orders, any retainage being billed, and the total.
- Your payment terms, an actual date the money is due, not "on receipt" left hanging. How to pay you, and which methods you take.
- A reference to the milestone if you are billing in stages, so it lines up with your contract's payment schedule.
Send it the day the work becomes billable. A milestone hit on Monday and invoiced on Friday is four days of the customer's clock you gave away for nothing.
Set payment terms that actually mean something
"On receipt" and "as soon as possible" are not terms, they are hopes. Put a real due date on it, whatever your terms are, so both sides know exactly when it is late. Net 15 and net 30 are common, meaning payment is due 15 or 30 days from the invoice date. Shorter terms get you paid sooner, so do not default to net 30 out of habit if the job can carry net 15 or net 7.
Two things back your terms up:
- Your contract. The payment terms on the invoice should match what the contract already says, so the invoice is enforcing a deal, not proposing one.
- Your state's prompt-pay law. On construction work, most states set a legal deadline for the customer or GC to pay and often owe you interest once it passes, on top of your own terms. That is real leverage most contractors never use. The deadline and rate are set state by state, so get yours from Working in Your State.
The follow-up rhythm
Chasing late money is uncomfortable, so build a routine and follow it every time, before it is personal:
- The day it goes overdue, send a short, friendly reminder. Attach the invoice again. Assume it slipped through, because usually it did.
- A week later, a firmer note. Restate the amount, the original due date, and ask for a specific pay date in reply. Keep it factual, not annoyed.
- A phone call often beats a fourth email. People pay a real voice faster than an inbox.
- Keep every message. Dated emails and texts are your paper trail if this ever escalates, and they show you gave fair, repeated notice.
The point of the rhythm is that you are not deciding, job by job, whether to feel awkward about chasing. You just run the steps.
Know when to stop being friendly
Follow-up has a limit, and dragging it out past that limit costs you leverage, because your strongest tools run on deadlines. When a reminder cycle has clearly failed, or the customer starts disputing rather than just delaying, it is time to step up to a formal demand letter, which is a different, firmer document, and from there to the full ladder of options: prompt-pay interest, a lien or a bond claim, small claims, or an attorney. The mistake is staying in polite-reminder mode so long that a lien deadline quietly passes. See How to write a demand letter and Not been paid: your options, and if a private-job payment is going bad, check your lien deadline early.
Common questions
What should a contractor invoice include to get paid faster?
Your business name and license number, the customer and job address, an invoice number and date, a plain description of the work, a clear itemized amount, and a real payment due date. Vague invoices give the customer a reason to pause; complete ones leave no excuse. Match it to your contract and send it the day the work is billable. A clean, dated invoice also sets up your state's prompt-pay interest if the payment later runs late.
What payment terms should I put on an invoice?
A specific due date, not "on receipt," so both sides know exactly when it is late. Net 15 and net 30 are common, meaning payment is due 15 or 30 days from the invoice date, and shorter terms get you paid sooner. Your invoice terms should match your contract. On construction work, your state's prompt-pay law also sets a legal payment deadline and often interest, which stacks on top, so check yours in Working in Your State.
How do I follow up on an unpaid invoice without wrecking the relationship?
Run a set routine instead of deciding job by job: a friendly reminder the day it is overdue, a firmer note a week later, then a phone call, keeping every message. Assume the first one just slipped, because it usually did. Staying factual and consistent gets you paid without it feeling personal. If the routine clearly fails or the customer starts disputing, step up to a formal demand letter rather than sending endless reminders.
When should I stop sending reminders and take real action?
When a reminder cycle has plainly failed or the customer is disputing rather than just delaying, and always before a lien deadline can slip past. Polite follow-up has a limit, and staying in it too long can cost you your strongest tools, which run on strict deadlines. Move up to a formal demand letter, then the escalation ladder: prompt-pay interest, a lien or bond claim, small claims, or an attorney. On a private job, check your lien deadline early.
The honest bit
- Prompt-pay deadlines and interest rates that back up your invoice terms are set state by state, and they change. This guide teaches the billing system. Get your state's actual prompt-pay deadline and rate from Working in Your State before you cite a figure in a follow-up.
- This is general guidance, not legal advice. The most expensive billing mistake is staying in friendly-reminder mode so long that a lien or bond deadline passes, so when follow-up stalls, move to the formal steps quickly, and on a large or contested balance talk to a construction attorney.
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