Self-employed and buying in the UK: how lenders actually read your income

A lender does not lend against your turnover. For a sole trader it lends against the net profit you declared to HMRC; for a director, usually the salary and dividends you actually drew. Both are numbers a good accountant spent the year making as small as legitimately possible. Hence the awkwardness of buying while self-employed: the tax return that pleased you in January is the application that disappoints you in June.

Every legitimate deduction — the van, the laptop, the share of household bills — comes off that figure pound for pound, and no lender adds it back before multiplying to reach its maximum loan. Nobody is suggesting you pay more tax than you owe, but the trade is real.

Two years averaged, and the average only helps when the line goes up

Most lenders want two years of finalised accounts, some three, a minority one. The usual method is the average of the last two, and the asymmetry catches people out: if your most recent year is the lower one, most lenders use that year alone, reading a falling trend as more honest than the arithmetic. One quiet year before you apply costs more than people expect.

A limited company pays you twice, and lenders disagree about the second half

A director usually takes a small salary topped up with dividends. Most lenders add the salary to the dividends you declared and drew, so profit you sensibly left inside the company is income they never see. A smaller group use your share of the company's net profit before tax instead, recognising retained profit.

The paperwork has to agree with itself

The tax calculation, still universally called the SA302, shows the income you declared; the tax year overview for the same year shows that the return was filed and what was charged. Underwriters compare them, and a mismatch holds the case until it is explained. The overview always comes from your HMRC account. The calculation comes from wherever the return was filed: your HMRC account, or your accountant's software if they filed it, where it may be labelled a tax computation. Neither is available for a few days after filing. The steps, and whether a lender takes copies you print yourself, are on gov.uk.

Most lenders also require accounts certified by an accountant with a recognised qualification, and each publishes its own list of accepted bodies: a case can fail on the accountant, not the accounts. Since Making Tax Digital for Income Tax began, sole traders above the qualifying threshold send quarterly updates through software. Those updates do not replace the year-end return and are not what a lender reads: the finalised figures are. Separately, some lenders will look at current-year figures alongside the last finalised accounts, which helps when your latest year is your best, but only with a lender that asks.

No credit history is a different problem from bad credit

A clean twenty-year record in Cairo, Dubai or Amman does not travel. UK credit reference agencies hold nothing about you until UK companies start reporting, and a scorecard with no data is harder to pass than one reading a small, explained blemish. A thin file is usually behind a new arrival on a good salary being declined without being told why.

What fills it is slow: a utility account in your own name, a current account your income visibly passes through, one credit card used lightly and cleared in full. The electoral roll is the strongest address marker a lender reads, but eligibility depends on your nationality and on where in the UK you live — the current list is on gov.uk. If you cannot register, the agencies still tie you to an address through accounts in your own name, and some lenders check address history by hand. Three years of address history is the usual ask, sometimes more, so write your overseas addresses down accurately now. Time is the ingredient you cannot shorten, so this starts the month you arrive.

Visa status is a lender policy question, not a legal one

Nothing in law stops a non-citizen holding a UK mortgage. Each lender sets its own rule, and they differ on time resident here and time left on your leave. Indefinite leave to remain or settled status is often treated as equivalent to citizenship. Without it, many lenders cap loan-to-value below their standard range — a larger deposit for reasons unconnected to your income. Some want a year or two left on the visa; some will look at a case where an extension is already in.

Proof is digital: you view and share your status from your UKVI account rather than from a document, described on gov.uk. Ask the lender which evidence it wants, because the share code services are built for employers and landlords rather than lenders. Lenders generally do not re-check your status after completion, and renewing does not disturb a mortgage you already hold.

What a broker is for, and how to check one is real

Not a secret rate. Knowing, before anyone touches your credit file, which lender's criteria your shape fits: which years are finalised, who certified them, how long you have been resident, how long your leave runs. Every full application leaves a hard search other lenders can see, and several in a few weeks read like a run of refusals whether or not they were. Check the firm's reference number on the Financial Services Register, and that its permissions cover mortgages. Ask how they are paid — a fee from you, commission from the lender, or both — before the first meeting.

The most expensive mistake is one of order: walking into the bank you have used for years because it knows you, being declined on a criterion unrelated to affordability, then looking seriously with a hard search already on the file. The second is a large tax decision taken in the same year as the application. Both cost nothing to avoid, if you think about the mortgage before the accounts are signed off.

This is general information about how a process works, not advice about your situation. Thresholds, fees and deadlines change — check the official source linked above for the current figures, or ask a professional who can see your circumstances.