AI agents for business finance: what they can and can't do
What AI agents can do in bookkeeping, close, collections and compliance today, where a person must stay in charge, and how to judge a product.
The short answer
Give a Nigerian client two documents: a full invoice before payment and a receipt after it, each with your name, address, invoice number, date, service, amount and currency. The receipt should also show the date and method of payment and any withholding tax deducted. A verifiable receipt adds a check anyone can run to confirm it is genuine and unaltered, which helps a client whose auditors or bank question a foreign payment.
Why Nigerian clients ask for more than a thank-you email
A Nigerian company paying a UK individual has to explain that payment more than once: to its bank when the money leaves, to its auditors at year end, and to the tax authority if it deducted withholding tax. Each of them wants a document that ties the payment to a real service from a real supplier. A screenshot of a chat or a one-line email rarely does that. Faked transfer receipts are also common enough that finance teams in Nigeria are wary of documents they cannot check; our Nigeria guide on spotting a fake transfer receipt shows what they look out for.
On your side, HMRC expects you to keep records of your income from the day you start trading, as GOV.UK's sole trader page says. The same documents that satisfy the client also become your own evidence of what you were paid and when.
The invoice: before payment
- Your full name, or trading name and your name, and your UK address.
- The client's registered company name and address in Nigeria.
- A unique invoice number and the invoice date.
- A clear description of the service and the period it covers.
- The amount and the currency, and whether bank charges are for the sender or shared.
- The due date and your payment details, including your bank's SWIFT/BIC.
- If you are VAT-registered, the VAT treatment. ACCA's guidance on services to customers outside the UK says business-to-business services follow the place where the customer belongs and are outside the scope of UK VAT; it describes a reverse-charge note on the invoice as good practice rather than mandatory, and says to hold evidence that the customer is in business.
An invoice with a due date also matters if you later chase payment. GOV.UK's late commercial payments guidance explains that where no payment date is agreed, a business payment becomes late 30 days after the customer receives the invoice or the service is delivered, whichever is later.
The receipt: after payment
A receipt confirms that a specific invoice was paid. It should show:
- The invoice number it settles and the receipt's own number and date.
- The amount received, the currency, and the date the money arrived.
- How it was paid, with the bank or transfer reference.
- Any amount deducted at source, such as Nigerian withholding tax, and the net received.
- Whether the invoice is now settled in full or a balance remains.
When withholding tax was deducted
If the client deducted withholding tax, the receipt should show the gross invoice, the deduction and the net amount. KPMG's note on Mondaq (13 August 2025) says withholding on services supplied from abroad is a final tax for the non-resident. Ask the client for its evidence of the deduction and keep it with your copy of the receipt. Whether the deduction was correct under the UK-Nigeria treaty is a separate question, covered in Nigerian withholding tax on a UK freelancer's invoice.
Regular or verifiable
| Regular receipt (PDF) | Verifiable receipt | |
|---|---|---|
| Shows invoice, amount, date | Yes | Yes |
| Can be edited after sending | Yes, by anyone with a PDF editor | Any change shows up when checked |
| Client's auditor can confirm it | Only by contacting you | By running the check themselves |
| Useful for | Small, trusted relationships | Audits, banks, disputes, new clients |
A verifiable receipt is one where the recipient, or anyone they pass it to, can check that it was issued by the sender and has not been changed. That is useful when a client's finance team is several people away from the person who hired you. Our Nigeria library explains what a verified receipt proves and what it does not: it confirms the document is genuine and unaltered, not that the work was good.
Mistakes that cause queries
- Invoicing a person at the client instead of the company, so the payment does not match the client's own records.
- Reusing invoice numbers, which makes your own books and the client's hard to reconcile.
- Leaving the currency off, which in a naira-and-pound relationship invites argument later.
- Not recording bank charges, so the receipt does not match the amount the client sent.
Keeping your own copies
File each invoice and receipt with the bank statement line that shows the money arriving. For a Nigerian client that pays in naira, note the pound value you recorded and the rate you used. If the client later asks for a duplicate, send a copy of the original rather than a new document with a new date, so both sets of books still match.
Where Pryme fits
Pryme partners with VerifyDoc.ai so that any customer can generate a regular or a verifiable receipt or statement from the account, and anyone can check a verifiable one is genuine and unaltered. See receipts. Business accounts also include invoicing, so the invoice and the receipt come from the same place as the payment.
Questions people ask
What should a receipt to a Nigerian client include?
The invoice number it settles, the receipt number and date, the amount and currency received, the payment date and reference, any withholding tax deducted, and whether a balance remains.
Do I charge UK VAT on an invoice to a Nigerian company?
If you are VAT-registered, business-to-business services to a customer outside the UK are generally outside the scope of UK VAT, per ACCA's guidance. Keep evidence the customer is a business.
What is a verifiable receipt?
A receipt that anyone holding it can check was issued by the sender and has not been changed since.
Should my receipt show withholding tax deducted in Nigeria?
Yes. Show the gross amount, the deduction and the net received, and keep the client's evidence of the deduction.
Sources
- GOV.UK: Set up as a sole trader (updated 5 Oct 2026) · accessed Oct 2026
- ACCA In Practice: VAT on supplies of services to customers outside the UK (Sep 2022) · accessed Oct 2026
- GOV.UK: Late commercial payments, charging interest and debt recovery · accessed Oct 2026
- Mondaq (KPMG): The Nigeria Tax Act and non-resident companies (13 Aug 2025) · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.