Lenders ask the self-employed for roughly twice the paperwork of a salaried borrower — and reject files for smaller mistakes. This interactive checklist covers everything a sole trader, contractor or company director should have ready in 2026 before approaching a lender.
There is no payslip to prove your income, so lenders rebuild it from evidence: finalised accounts, tax returns and real bank activity over two to three years. They are looking for one thing — sustainability. A single exceptional year counts for less than three steady ones, and a recent dip will be asked about, so be ready to explain it.
Two to three years of finalised accounts or tax returns are the core of the file. In the UK, lenders specifically want your SA302 tax calculations together with the matching HMRC tax year overviews — the SA302 states what you earned, the overview confirms the tax was paid, and the figures must agree. Recent invoices or signed contracts show the income is still flowing today, not just in last year’s accounts.
Business bank statements let the lender verify that the turnover in your accounts actually arrives in the bank. An accountant’s certificate — or simply your accountant’s details so the lender can verify the accounts — adds credibility, especially for limited company directors who pay themselves in salary plus dividends.
On top of the business paperwork, you still need everything a salaried borrower provides: valid photo ID, recent proof of address, three months of personal bank statements for all accounts, your existing credit commitments, and the property documents — purchase agreement, energy performance certificate and title extract.
Dossia turns this checklist into a private upload link: your client photographs each document from their phone, you validate it in one click, and the file is bank-ready without a single chasing email.
Send this checklist as a private upload link