How to chase clients for accounting documents without damaging the relationship

The bank statement has arrived, but not the invoices. The purchase invoices are there, but not the sales invoices. And last month's expense receipts are still "in the car". Every month it's the same chase, and every month you feel a little more like you're running after a client who pays you to look after them.

This article is for accounting firms, bookkeepers and freelancers who keep their clients' books. It offers a list, a schedule and messages to chase clients for accounting documents without damaging the relationship.

Why do the documents always arrive late?

Because for your client, accounting isn't the work: it's what comes after. Their documents are scattered between their inbox, three suppliers' customer portals, their phone and an envelope of receipts. Gathering them takes an hour they never find.

There's also a less visible reason: they don't always know what you expect. "Send me your documents for the month" leaves the hardest question open: which ones? The client sends what they have to hand, and you discover the gaps during the bank reconciliation.

The solution comes down to three decisions: a precise list, a fixed schedule, and follow-ups that name exactly what's missing.

Which documents should you request every month?

There's no single list: it depends on the client's business and on your engagement letter. But most files revolve around the same categories. Write them down once, in words the client understands, and always send the same list.

• Bank statements for every business account, from the first to the last day of the month.
• Sales invoices issued during the month, and credit notes.
• Purchase invoices and overheads: suppliers, subscriptions, rent, energy, phone.
• Expense reports with their receipts: tickets, train tickets, hotel invoices.
• Till receipts and cash slips, if the client takes or spends cash.
• Any unusual document from the month: a contract, a loan and its repayment schedule, a letter from the tax authorities.

Also remind your clients that they have to keep their records for a long time. In France, for example, supporting documents and accounting books must be kept for 10 years from the end of the financial year, according to service-public.gouv.fr (opens in a new tab) (in French), based on article L123-22 of the French Commercial Code. Retention periods vary from country to country: check the one that applies to your clients. A client who knows they have to keep everything files better, and files sooner.

How often should you ask, and when should you follow up?

The secret of a monthly collection is that it never surprises anyone. Same day, same message, same list, every month. A simple rhythm, to adapt to your own deadlines:

1. The first working day of the month, the request, with the full list.
2. A week later, a short reminder to those who haven't sent anything.
3. After your first reconciliation pass, a specific message listing the bank transactions without supporting documents.
4. A few days before your internal deadline, a final message, or a call.

Set that internal deadline according to your own filing obligations, which vary with each client's tax regime, with a margin of a few days. Announce it in the request, and stick to it.

Which messages should you send?

The monthly request, identical every month. The client ends up recognising it, and that's exactly the point:

Subject: Your [month] documents, by [day and date]

Hi [First name],

It's time to send your documents for [month]. By [day and date], I need:

1. Statements for all your business accounts
2. Your sales invoices and credit notes
3. Your purchase and expense invoices
4. Your expense reports, with the receipts
5. Any unusual document (contract, loan, letter)

Just reply to this message with the files, a clear photo is fine for receipts.

Thanks, and have a good month,
[Your first name]

The most useful message of all is the one that follows the reconciliation. It no longer talks about "documents", it lists specific transactions that the client can find in thirty seconds in their banking app:

Subject: [Month]: 4 receipts to find

Hi [First name],

Thanks for your [month] documents, the rest is fine. I'm missing a receipt for these 4 transactions:

- [Month] 3: €49.90 [bank description]
- [Month] 11: €212.00 [bank description]
- [Month] 18: €18.50 [bank description]
- [Month] 27: €1,080.00 [bank description]

A photo, a PDF or even a screenshot from the supplier's customer portal is fine. If any of them is a personal expense, let me know and I'll record it as such.

Thanks,
[Your first name]

Notice the two doors: the simplest possible format, and the "personal expense" way out. That's often the reason a document never arrives.

And, before your deadline, a message that says what happens, without threatening:

Subject: [Month]: closing on Friday

Hi [First name],

I'm closing [month] on Friday. I'm still missing the receipts for the transactions on the 11th and the 27th.

Without them, these two expenses will stay pending and I'll have to come back to you later. If it's easier, give me a ten-minute call and we'll find them together.

[Your first name]

For other ways of phrasing it, from the friendly nudge to the final follow-up, see our six reminder email templates.

How do you follow up without damaging the relationship?

Your client isn't at fault, they're busy. Chasing a client for accounting documents is doing them a service they pay for: sparing them from having to think about it. Three habits change the tone of the exchange:

• Start with what's fine. "The rest is fine" tells the client they're almost done.
• Never list what they forgot last month. Every month starts from scratch.
• Explain once why the rhythm matters, at the start of the engagement, rather than in every follow-up.

The human side of following up, and why a client's silence is almost never ill will, is covered in how to follow up without being pushy.

If your clients are in France: what e-invoicing changes

France is rolling out mandatory electronic invoicing. According to the French tax authority, "all companies of all sizes are required to comply with the reform by 1 September 2026, and must be able to receive e-invoices by this date", while small and micro-enterprises have until 1 September 2027 to issue them (impots.gouv.fr, I want to understand electronic invoicing (opens in a new tab)). Invoices go through approved platforms.

For collection, this means some of your clients' purchase invoices will go through their platform. Check with each of them: which platform they chose, and how you can access it. Every invoice you can retrieve yourself is one less follow-up. Receipts, expense reports and invoices from foreign suppliers, on the other hand, will keep arriving the usual way.

And when you have thirty clients?

The method works by hand for a handful of files. Beyond that, tracking is what breaks: knowing, every morning, who sent what, and who to write to. The general method for keeping that table is described in how to collect documents from multiple people.

Please Send It sends each client their own upload link with your list for the month, only chases those who still have documents missing, and files everything by client. The reminders stop on their own as soon as the file is complete.