How long to wait before sending an invoice reminder

The wait is part of the reminder. A note that arrives on the due date feels like you don’t believe they will pay, and a note that arrives a month later feels like you forgot too. For most contractor and shop invoices, a short gap after the due date is the whole trick. These gaps are a practical schedule, not a law. If the contract names different terms, check the contract and local rules, and follow the contract.

Don’t send the first reminder on the due date. Payments that were already approved often move that day or the next business day. Three to seven days after the due date is a reasonable first note. Three days is enough when the job was small, the person who pays is the person you stood next to, and you know they saw the invoice. Closer to seven days is better when a bookkeeper, a spouse, or a property manager has to touch it. The words for that first note are the polite overdue invoice email. It assumes the invoice was buried. That assumption is usually right the first time.

Contract terms beat a habit. If you wrote net 30, the invoice is not late on day 7. Count from the due date you printed, not from the day you finished the work, unless those are the same day. A progress draw isn’t late because the whole project is unfinished. It is late when that draw’s own due date has passed. Don’t “remind” someone about a bill that isn’t due yet. Send the invoice when the phase is done, and start the clock then.

Use a payment day they already told you. Some customers pay on Fridays. Some offices pay on the 15th and the last day of the month. If they said that, the first reminder waits until that run has passed, even if your usual gap would have been shorter. Then the note can mention the day they named, so it sounds like you listened. If that run passes with nothing, you don’t owe them another full cycle of silence. Ask for a date.

If the first reminder gets no answer and no payment, wait about a week before the second note. A week is long enough that you aren’t stacking emails, and short enough that the job is still recognizable. The second note is shorter. It asks for a date. That is the second ask. Don’t fill the gap with extra emails “just checking in.” Two asks that can be answered beat five asks that all say the same thing. Daily email teaches people to filter you.

A promise changes the clock. If they reply “Thursday,” you don’t write on Wednesday to confirm, and you don’t write on Thursday morning. You wait until that day has passed. The next business day, you name the date they gave and ask for a new one. That note is when a client promised to pay and didn’t. If they said a check was mailed, give it about a week and ask for the check number, the amount, and the day it was mailed. Mail is slow. A week separates a slow check from a sentence that was never true.

Resending an invoice they never received is not a reminder. Send it the same day, then start the ordinary gaps once they have it. A missing bill is yours to fix before it is their lateness.

The size of the invoice doesn’t shorten the wait. A roof balance and a service call can use the same gaps. A broken promise shortens the wait. A contract term or a pay run they told you about lengthens it. If two asks and a missed date still produce nothing, the next note is the last one, or a decision to pause new work. It is not another week of the same paragraph.

Do

• Wait three to seven days after the due date for the first reminder.
• Wait about a week after that first note before you ask again.
• Honor a payday or a contract term that is longer than your usual gap.
• Write on the next business day after a date they promised and missed.

Don’t

• Don’t remind them on the due date.
• Don’t email every day because the balance is large.
• Don’t write again before a date they already gave you.
• Don’t treat a missing invoice as lateness. Resend it, then start the clock.

Copy a first reminder only after the gap has passed. The second sample is for the day after a payment run they told you about. Replace the brackets. Neither one is a final notice.

Subject: Invoice [Invoice number] — due [Due date]

Hi [Client first name],

Invoice [Invoice number] for [Amount] was due [Due date]. It is for [Work description] at [Job address]. I don’t see a payment yet.

Please send [Amount], or reply with the date it will go out. If you need the invoice again, I’ll resend it.

[Your name]
[Your company]

Subject: Invoice [Invoice number] — after your [Payment day] run

Hi [Client first name],

You mentioned payments go out on [Payment day]. Invoice [Invoice number] for [Amount] was due [Due date], and that [Payment day] has passed. It is for [Work description].

Please reply with the date it will be sent, or send [Amount] if it is still in this run.

[Your name]
[Your company]

When the wait is over, the overdue invoice email writes the note: a friendly first reminder, a shorter second ask, or a final notice. Copy it into your own mail. The page does not send it, and it will not tell you whether you have waited long enough. That decision is the schedule above.