How do I politely ask a client to pay an overdue invoice?

Keep it short and factual. Name the invoice number, amount and due date, add the payment link, and assume it slipped through. Example: Invoice 1042 for $480 was due on 14 October. You can pay here. If something looks wrong, reply and I will sort it.

When should I send the first payment reminder?

Send a friendly heads-up a few days before the due date, then the first overdue reminder 1 to 3 days after it passes. Xero's guide suggests the same 1 to 3 day window, followed by a firmer note at 14 days and a final notice at 30.

How many reminders should I send before a final notice?

Three or four is common: a polite nudge, a request for a payment date, a firmer note with a deadline, then the final notice. Add a phone call once two emails go unanswered. What matters is that each step is dated and asks for one clear thing.

Can I add a late fee or interest to an overdue invoice?

Only if your written terms say so, or the law where you trade gives you the right. In the UK, business-to-business invoices can carry statutory interest of 8% plus the Bank of England base rate and a fixed recovery sum of £40, £70 or £100, according to GOV.UK. Household clients are different. This is general information, not legal advice.

Should I call or text instead of emailing about a late invoice?

Email first so there is a written record with the invoice attached. Text is fine for trades and home services where clients already text you, as long as it repeats the invoice number and amount. If two reminders get no reply, call and ask what is holding it up.

Can GBot chase unpaid invoices for me?

No. GBot does not track who has paid, does not send reminders on its own, and does not collect debts. You tell it which invoice is late and it drafts the reminder in your voice. You check the facts and send it yourself.

Overdue Invoice Reminder Emails: 8 Templates + Schedule

The short answer: send a friendly note a few days before the due date, then reminders at roughly 1 to 3 days late, 7 days, 14 days, and a final notice around 30 days. Every message should carry the invoice number, the amount, the due date, a way to pay, and one clear ask. The eight templates below cover each step, plus short text versions and the fee rules to check before you mention one.

This guide is for owners who bill after the work is done: cleaners, plumbers, electricians, photographers, tutors, small agencies, and any shop that invoices other businesses. You do not need software to use it. You need the facts in one place and wording you can reuse without sounding angry.

Before you write: fill the facts box

Most awkward reminders are awkward because the facts are fuzzy. Fill this once per late invoice, then paste it into every message:

Field	Example (illustrative)
Client name	Dana Reyes
Invoice number	1042
Amount due	$480
Due date	14 October
What the job was	Deep clean, 2-bed flat, 7 October
How to pay	Pay link or bank details
Who to contact	Your name and number

If any field is wrong on the invoice itself, fix the invoice first. A reminder that repeats a wrong amount gives the client a reason to wait.

The reminder schedule

Use this as a starting point and adjust for your terms and the size of the invoice. Accounting software guides suggest a similar rhythm; Xero's guide on chasing invoices recommends a first reminder 1 to 3 days after the due date, a formal follow-up at 14 days, and a final notice at 30 days.

When	Goal	Tone
3 days before due	Make sure they have it	Friendly
Due date	Easy pay link	Neutral
1 to 3 days late	Assume it slipped	Polite
7 days late	Get a payment date	Direct
14 days late	Set a deadline	Firm
About 30 days late	Final notice, next step	Formal

One reminder, one ask. Do not mix "please pay", "please confirm the address", and "also, about next month's job" in one message. One ask gets one answer.

8 overdue invoice reminder templates

Replace the brackets. Keep the subject line specific: invoice number plus status is easier to find in a busy inbox than "Following up".

1. Before the due date

Subject: Invoice [number] due on [date]

Hi [name],

A quick heads-up that invoice [number] for [amount] ([job in one line]) is due on [date]. You can pay here: [link]. If anything on it looks wrong, just reply and I will fix it.

Thanks, [your name]

2. On the due date

Subject: Invoice [number] is due today

Hi [name],

Invoice [number] for [amount] is due today. Here is the payment link again: [link]. If you have already paid, thank you, and please ignore this.

[your name]

3. 1 to 3 days late

Subject: Invoice [number] is now overdue

Hi [name],

Invoice [number] for [amount] was due on [date] and still shows as unpaid on my side. These things slip, so this is just a nudge. You can pay here: [link].

If there is a problem with the invoice or the work, reply and tell me. I would rather fix it than chase it.

[your name]

4. 7 days late: ask for a date

Subject: Invoice [number]: when can I expect payment?

Hi [name],

I am following up on invoice [number] for [amount], due on [date]. Could you reply with the date you plan to pay? If someone else handles payments, send me their email and I will contact them directly.

Invoice attached. Pay link: [link]

Thanks, [your name]

5. 14 days late: set a deadline

Subject: Action needed: invoice [number] is 14 days overdue

Hi [name],

Invoice [number] for [amount] is now 14 days past its due date of [date], and I have not had a reply to my earlier emails. Please pay by [deadline, about 7 days out] using this link: [link].

If you cannot pay in full by then, reply today and we can agree a short plan.

[your name]

6. Final notice (around 30 days)

Subject: Final notice: invoice [number], [amount] overdue

Hi [name],

This is my final reminder about invoice [number] for [amount], due on [date]. I have emailed on [dates] without a reply.

Please pay by [deadline]. If I have not received payment or heard from you by then, I will [the one next step you will actually take, for example: add the late fee set out in my terms / pause further bookings / start a small claim].

I would much rather settle this directly, so call me on [number] if something is wrong.

[your name]

7. Partial payment received

Subject: Thanks for your payment on invoice [number]

Hi [name],

Thank you, I received [amount paid] towards invoice [number]. That leaves [balance] outstanding. Can you confirm when the rest will follow? Pay link: [link].

[your name]

8. Client says there is a problem with the work

Subject: Re: invoice [number]

Hi [name],

Thanks for telling me. I want to get this right. Can you send a photo or a short note on what is not right with [job]? I will reply by [day] with a fix or an adjustment to the invoice.

If part of the invoice is not in question, could you pay that part now ([amount]) while we sort out the rest?

[your name]

Short text versions

Trades and home-service clients often answer texts faster than email. Keep the same facts, cut the rest:

Due today: "Hi [name], it's [your name] from [business]. Invoice [number] for [amount] is due today. Pay here: [link]. Thanks!"
A few days late: "Hi [name], quick nudge: invoice [number] for [amount] was due [date]. Pay link: [link]. Reply if anything looks wrong."
7+ days late: "Hi [name], following up on invoice [number] ([amount]). Can you let me know a date you'll pay? Happy to talk if easier."

Plain words beat formal ones in a text. More on that in words customers actually use.

Late fees and interest: only what your terms say

Never mention a fee you have not agreed in writing, and never threaten a step you will not take. Both make the next conversation harder.

Your own terms come first. If your quote or invoice states a late fee, you can point to it. If it does not, adding one later usually starts an argument, not a payment.
UK business-to-business invoices. GOV.UK says you can charge statutory interest of 8% plus the Bank of England base rate when another business pays late, unless your contract sets a different rate. You can also claim a fixed recovery sum once per invoice: £40 up to £999.99, £70 from £1,000 to £9,999.99, and £100 for £10,000 or more. If no payment date was agreed, the payment counts as late 30 days after the customer gets the invoice or you deliver, whichever is later.
Household clients and other countries. The UK rules above are for business customers. For consumers, or if you trade elsewhere, check your local rules or ask an accountant before adding charges.

This is general information, not legal advice.

When to stop emailing and call

If two reminders get no reply, pick up the phone. Xero's guide makes the same point: a call lets you solve the problem or agree a payment plan on the spot. Keep it simple:

"I'm calling about invoice [number] for [amount]. Has it reached the right person?"
Listen. Often it is a missing purchase order, a wrong address, or a dispute nobody mentioned.
Agree a date out loud, then send a one-line email confirming it.

Prevent the next late invoice

Put your payment terms (due date, how to pay, any late fee) on the quote, not just the invoice.
Add a pay link to every invoice so paying takes one tap.
For bigger jobs, take a deposit up front. The same logic as a no-show policy applies: clear rules agreed before the work are easier than arguments after.
Invoice the same day you finish. The longer the gap, the more the job feels like old news.
Keep your prices on one clear price list so the invoice matches what the client expected.

Where GBot fits

If writing the third reminder is the part you keep putting off, GBot can help with the words. Sam, its bookkeeper helper, prepares quotes and invoices with the maths done, and the writing helpers draft emails in your voice. Tell it which invoice is late and how firm to be, and it drafts the reminder for you to check and send. GBot does not track who has paid, does not send reminders on its own, and does not collect debts.