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
If you live in the UK and work for yourself, fees from Nigerian clients are part of your trading income and go on your Self Assessment return like fees from UK clients. Above £1,000 of gross trading income in a tax year you must register for Self Assessment. For 2026 to 2027, profits are taxed at the income tax rates after the £12,570 personal allowance, plus Class 4 National Insurance of 6% on profits between £12,570 and £50,270 and 2% above.
Where the client is does not change the basic rule
GOV.UK describes you as likely to be trading if you sell regularly to make a profit or are paid for a service you provide, especially if you take responsibility for the business, charge a fixed price for your work or provide your own main equipment. If you do that work from the UK as a UK resident, the fact that the client is in Lagos or pays in naira does not turn the fees into "foreign income" for a separate set of pages. They are receipts of your business, and you report the profit of the whole business.
What does change is the paperwork around the money: conversion to pounds, any Nigerian tax deducted at source, and VAT. Those are covered in linked articles below.
The £1,000 trading allowance
HMRC's trading allowance is a tax exemption of up to £1,000 a year for individuals with trading income. GOV.UK says that if your annual gross income from trading is £1,000 or less, you do not need to tell HMRC. Above £1,000, you must register for Self Assessment, and you can either deduct the £1,000 allowance or claim your actual expenses, not both. The allowance cannot be used for income from a company or partnership you are connected to, or from your employer or your spouse's employer. Small side income is covered in the trading allowance and side income.
Registering and deadlines
GOV.UK says you must register by 5 October following the end of the tax year in which you started, for example by 5 October 2026 for 2025 to 2026; registering later "could get a penalty". The return deadlines for 2025 to 2026 are:
| What | Deadline |
|---|---|
| Paper return | 31 October 2026 |
| Online return | 31 January 2027 |
| Pay tax owed | 31 January 2027 |
| Second payment on account (if due) | 31 July |
Steps to register are in registering as self-employed.
What you pay: 2026 to 2027 rates
- Income tax (England, Wales and Northern Ireland): personal allowance £12,570; 20% up to £50,270; 40% up to £125,140; 45% above. Scotland has its own bands.
- Class 4 National Insurance: 6% on profits between £12,570 and £50,270, 2% above.
- Class 2 National Insurance: voluntary at £3.65 a week, which some people pay to protect their State Pension record.
Your profit is your income less allowable business expenses, such as software, equipment, a share of phone and internet used for work, and travel to see clients; whether a trip to Nigeria qualifies depends on its purpose, covered in claiming a client trip to Nigeria. Keep receipts in whatever currency you paid. If your profit pushes your tax bill over a certain level, HMRC may also ask for payments on account towards next year, which is why the 31 July date in the table above matters to many freelancers in their second year.
Worked example
Example only. Ada lives in Manchester and has no other income. In 2026 to 2027 she invoices Nigerian clients £34,000 and UK clients £4,000, and has £8,000 of allowable expenses. Her profit is £30,000 (34,000 + 4,000 - 8,000).
| Item | Working | Amount |
|---|---|---|
| Taxable after personal allowance | 30,000 - 12,570 | £17,430 |
| Income tax at 20% | 17,430 x 20% | £3,486.00 |
| Class 4 NI at 6% | 17,430 x 6% | £1,045.80 |
| Total | £4,531.80 |
Her Nigerian and UK fees are taxed together; there is no separate rate for the Nigerian work. If a Nigerian client deducted withholding tax, she may be able to set some or all of it against this bill; see claiming Nigerian withholding tax on a UK return.
Practical points for naira and Nigerian clients
- Convert to pounds consistently. Record each naira receipt at its pound value using a consistent, documented rate source. HMRC publishes exchange rates, referenced in its SA106 notes; ask your accountant which method suits your accounts, and see timing naira conversions.
- Keep evidence of every receipt: invoice, contract, bank statement line. Payments arriving from Nigeria in a different name from the client should be explained in your records.
- Nigerian withholding tax. Some Nigerian payers deduct tax before paying you. Record the gross fee as income and keep the deduction certificate.
- VAT is separate: services to Nigerian businesses are generally outside the scope of UK VAT, which matters for the £90,000 threshold. See UK VAT and Nigerian clients.
Where Pryme fits
A Pryme Business Account keeps pound and naira receipts in separate balances with local account details for each, so the naira a Lagos client pays and the pounds a UK client pays are easy to tell apart at year end. The Finance agent can prepare a record of receipts for your accountant; a person approves before anything is sent.
Questions people ask
Do I pay UK tax on money from Nigerian clients?
Yes, if you are UK resident and trading from the UK. The fees are part of your business income and go on your Self Assessment return with your UK fees.
Do I need to register as self-employed for small Nigerian jobs?
Not if your gross trading income for the tax year is £1,000 or less, unless you must file a return for another reason. Above £1,000 you must register for Self Assessment.
What tax rate do UK sole traders pay in 2026 to 2027?
Income tax at 20%, 40% or 45% above the £12,570 personal allowance (Scotland differs), plus Class 4 National Insurance at 6% on profits from £12,570 to £50,270 and 2% above.
Is naira income converted to pounds for HMRC?
Yes. Record each naira receipt at its pound value using a consistent rate source; HMRC publishes exchange rates.
Sources
- GOV.UK: Working for yourself (updated 5 Oct 2026) · accessed Oct 2026
- GOV.UK: Tax-free allowances on property and trading income · accessed Oct 2026
- GOV.UK: Register for Self Assessment (updated 8 Oct 2026) · accessed Oct 2026
- GOV.UK: Self Assessment deadlines · accessed Oct 2026
- GOV.UK: National Insurance, how much you pay · accessed Oct 2026
- GOV.UK: Income Tax rates and Personal Allowances · 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.