Reminder for an overdue invoice: templates for 7 to 60+ days

Key takeaways

• Send a short, friendly nudge at 7 days overdue, a dated request at 14 days, a final notice at 30, and a signed letter at 60.
• Never hedge. Apologising or writing “just checking in” tells the client the payment is negotiable.
• Move from email to a letter at 60 days, when a client breaks a payment promise, or after two reminders get no reply at all.
• Xero can send the 7, 14 and 30 day emails for you. The 60 day letter you send yourself, signed and on letterhead.
• Deposits, late fees written into the agreement, and billing by milestone prevent most overdue invoices before they start.

What should a reminder say at 7 days versus 30 days?

The tone moves from “this probably slipped” to “this is now a problem we both need to solve.” The content moves from a nudge with a copy of the invoice to a specific request with a date and a stated next step.

At 7 days, assume an oversight

At a week, the invoice was most likely missed, not dodged. Keep it to three sentences: the invoice number and amount, the invoice attached again, and one question about whether it is scheduled. No blame and no mention of late fees.

At 30 days, name the consequence

At a month, state the facts plainly. Give the date you need payment by and say what happens if it does not arrive, such as pausing work or applying the late terms you agreed. Being direct here protects the relationship better than another vague nudge, because it gives the client something definite to answer.

Which templates work without damaging the relationship?

The templates below can be sent as written. Each one is short, because a long email reads as anxious and invites delay.

7 days: the friendly nudge

Subject: Invoice #1042 from [your studio]

Hi [Name],

Invoice #1042 for [$amount] was due on [date] and is now a week past due. It may have slipped through, so here is a copy.

Could you confirm it is scheduled for payment?

Thanks, [Your name]

No apology, no “just checking in,” no “sorry to bother you.” A plain fact and one clear question is easier to answer than a paragraph of hedging.

14 days: the direct ask with a deadline

Subject: Invoice #1042 is past due

Hi [Name],

Invoice #1042 for [$amount] is now 14 days overdue. Please arrange payment by [date, 7 days out].

If something is blocking payment on your side, tell me what it is and I’ll work with you. Otherwise I’ll expect payment by that date.

Thanks, [Your name]

This one is firm but leaves the client a way out: name the problem, or pay. The deadline matters, because “when you get a chance” gives you nothing to follow up on.

30 days: the final notice

Subject: Invoice #1042, now 30 days overdue

Hi [Name],

Invoice #1042 for [$amount] was due on [date] and is now 30 days past due. This is my last email reminder before I send a formal notice. Please pay by [date, 7 days out], or reply to arrange a payment plan. A copy of the invoice is attached.

[Your name]

One consequence, one deadline, one way to reply. No apology and no small talk.

How do you write a letter when polite reminders have failed?

At 60 days, email stops and a letter starts. The letter differs from an email in three ways. It goes on letterhead. It states the total owed, including any late fees your original terms allow. And it sets a date after which you will refer the debt to a collections agency or file in small claims court.

Keep it to five sentences:

• the invoice number, date and original amount;
• the amount now owed, with late fees shown separately;
• the date you need payment by;
• what you will do if that date passes;
• one person to contact about payment.

Sign it with your name, not “the accounts team.” The letter works because it is unremarkable. It reads as a record rather than a nudge, and if the debt does go further, it is the document you will be asked for.

What to stop doing at 60 days

Pause active work for that client and decline new scope until the balance clears. Say so in the same letter, so the pause is in writing. Keep logging the time the chase costs you against that client, so the real cost is in front of you when you decide whether to keep them.

Which subject lines get reminders opened and answered?

Match the subject line to the stage: neutral at 7 days, factual at 14, firm at 30, formal at 60. A line like “just checking in” gets skimmed because it hides what the email is about.

Putting the invoice number in every subject means the client can find the thread and forward it to whoever pays, without asking you for anything.

When should a reminder move from email to a formal letter?

When any one of three things happens: the invoice passes 60 days overdue, the client breaks a specific promise (“the payment goes out Friday,” and Friday passes), or two reminders get no reply at all. Short of that, email is still doing its job.

The amount matters too. A $400 invoice rarely justifies the friction of a letter. A $6,000 invoice sitting at 45 days usually does.

A formal letter is not anger. It is a change of channel, and it tells the client the account has moved into your collection process. That is often enough to get a stalled invoice paid without a lawyer.

How do you automate overdue reminders in Xero?

In Xero, invoice reminders are switched on in the invoice settings. Turn on the option to email customers when an invoice is overdue, then edit each reminder and paste in the wording from the templates above. Xero only reminds on invoices it has marked as sent, and the menu names change from time to time, so check Xero’s own help if yours look different.

Map Xero’s schedule to the stages

Set three reminders: 7, 14 and 30 days overdue, each with the matching subject line from the table. Leave the 60 day stage out of Xero entirely. That one is the letter, and it should arrive signed and on letterhead, from you.

Write the reminders as if a person sent them. No “this is an automated message,” and no capital letters for emphasis.

What Xero reminders can’t do

Xero sends email but does not read replies. If a client answers with a promise to pay, the schedule keeps firing anyway, so look over the overdue list each week and stop reminders where a conversation is already happening. Xero also can’t send the letter or hold a client to the date they promised. Treat it as the first three stages and nothing more.

How do you keep track across every client?

A spreadsheet breaks first. One tab per client gives you no single place to see what is overdue and what needs attention. You need one list of every invoice still unpaid, across every client, with how long each has waited. Once that exists, the reminders run themselves and you only step in at the letter.

That list is part of what Projectous is for. Ask it who owes you money and it shows every client with a past-due balance, the total, and how many days the oldest invoice has waited, next to the client work and hours behind it. It stops there on purpose. It won’t write your letter or chase a client for you. If you are weighing it against a larger tool, here is how it compares with Productive.

How do you stop invoices going overdue in the first place?

Three terms in the agreement prevent most of it: a deposit before work starts, late fees written into the contract, and payment tied to milestones rather than one invoice at the end.

Bill at each milestone, not at the end. A client who has paid three small invoices on time rarely goes quiet on the fourth. A client sitting on one large invoice for two months of work holds all the leverage.

Invoice the day a milestone is delivered, while the work is fresh in the client’s mind. Waiting for month end gives away weeks for nothing.

None of this ends chasing. It shrinks the amount at risk and shortens how long any one invoice stays overdue.

Questions people ask

Is it unprofessional to send a payment reminder?

No. A plain reminder with the invoice number, amount and due date is standard practice, and easier for the client to answer than silence. What reads as unprofessional is hedging: apologising, “just checking in,” or burying the request. State the fact, ask one question, and stop.

Should I charge a late fee, and how do I word it?

Only if the fee is in your original agreement, and say so: “Per our terms, a late fee of [X%] now applies to Invoice #1042.” Name the fee alongside the deadline at 30 days, and include what has built up in the total the 60 day letter asks for. Some places cap late fees, so check yours before you set the rate.

How many reminders before I call the client?

Two with no reply. If the 7 and 14 day emails get no answer at all, call instead of sending a third. Call too if the client breaks a specific promise to pay.

Can I pause work while an invoice is overdue?

Yes, and at 60 days you should. Stop active work and decline new scope until the balance clears, and put that in writing in the same letter as the payment demand. Your contract decides how much notice you owe, so read it before you pause.