If you are about to apply for a mortgage, the most useful thing you can do this week is collect your paperwork. Not because the documents are hard to find, but because the usual cause of a slow application is a missing page, a stale statement or a name spelt two ways, and each of those costs a few days.
This page covers what UK lenders ask for, what changes if you are self-employed, a landlord or getting help with the deposit, and the mistakes that send applications back. Skim the short version first, then read the sections that match your situation.
The Short Version
- Passport or photocard driving licence, in date
- A bank statement, utility bill or council tax bill from the last three months as proof of address
- Your last three payslips and latest P60 if you are employed
- SA302s and Tax Year Overviews for two or three years, plus accounts or an accountant’s letter, if you work for yourself
- Full statements for the last three months on each account you use, every page included
- A note of your loans, cards and other regular payments
- Proof of where your deposit came from
- Anything specific to you, like tenancy agreements, a contractor’s contract, a gift letter or visa details
ID and Proof of Address
Nobody enjoys this part, and it is the easiest to get right. A passport or full photocard driving licence works for ID, provided it has not expired, because an expired one is rejected outright.
For address you need something recent with your name and current address on it, usually a bank statement or a utility or council tax bill issued within the last three months.
The detail that catches people out is consistency. If your passport says Katherine and your payslip says Kate, or the utility bill still shows the flat you left last year, expect an email asking you to explain. Check you are on the electoral roll at your current address as well, since many lenders look at it early on.
Buyers who are not British citizens will usually be asked for evidence of their right to live in the UK, such as a visa or an eVisa share code. Lenders are far from uniform on what they accept, so this is a good moment to talk to a broker before you apply.
Proof of Income
Employed Applicants
If you are on a payslip, life is simple. Three months of payslips and your latest P60 are the standard pair. The payslips show monthly pay, the P60 shows the full tax year, and the underwriter compares them to make sure the figures agree.
Things get a little more involved when part of your pay is bonus, commission or overtime. A lender will not simply take your word that the bonus recurs, so expect to hand over the P60s for the last two or three years and sometimes a letter from your employer.
The same letter is usually requested if you are still on probation or only just started the job, confirming what you do, what you earn and whether the contract is permanent.
Self-Employed Applicants and Directors
For anyone working for themselves, the tax paperwork matters more than anything else you send. Most lenders want the SA302s for the last two or three tax years, together with the matching Tax Year Overviews, both of which you can pull from your HMRC online account in a few minutes. An accountant’s certificate or reference is accepted in place of full accounts by many lenders, though some like to see both.
If you run a limited company, add the company accounts to the pile. Lenders look at what you pay yourself in salary and dividends and, with some of them, at the profit left in the business, so how much you can borrow depends on which lender you ask. Our self-employed mortgage guide goes through the different methods, and matching the person to the right method is the main reason a broker earns their keep on these cases.
Contractors
Contractors on a day rate are usually assessed on that rate, which means the lender wants to see the contract itself and not your own summary of it. If you have had gaps between contracts, include the older ones too so the history is visible. We cover the calculation on our contractor mortgage page.
Pensions, Benefits and Rental Income
Pension income is evidenced with statements or award letters, and Universal Credit with the latest award statement from the Department for Work and Pensions. Child Benefit comes with an HMRC award notice, although not every lender will count it towards affordability. A word of warning on older guides: plenty still list tax credit award notices as a document to provide, but Working Tax Credit and Child Tax Credit both ended on 5 April 2025, so there is nothing current to produce.
If part of your income is rent, bring the tenancy agreements along with the account statements where the rent is paid in. Dividend vouchers or interest certificates do the same job for investment income.
Bank Statements and What You Owe
Going through statements and commitments together before applying
Expect to send three months of statements for your main current account, and more if a savings account holds the deposit. Send every page and make sure your name, the account number and the sort code are all visible. A statement with the corner cut off is a classic reason for a request to resend.
The underwriter is reading these for habits. They want to see the salary from your payslip arriving, the bills going out on time and no pattern of gambling, overdraft use or returned direct debits that would make a mortgage payment look tight.
You will also be asked about everything you owe. Loans, credit cards, car finance, student loan deductions, buy now pay later balances, childcare and maintenance all count, and all of it should go on the form.
Your credit file will reveal most of it regardless, and a debt that turns up halfway through underwriting does more harm than the debt would have done if declared up front. A big list of commitments will lower what you can borrow, which our mortgage affordability guide explains in more detail.
Where Your Deposit Came From
Every solicitor and lender has to check this, because anti-money laundering rules say so, and it applies to everyone buying and not only people with an unusual story.
Savings built up steadily in one account are the easy case, since the statements speak for themselves.
A large sum that landed last month is different, because someone will ask where it came from.
If the money is from selling a property, the solicitor’s completion statement does the job. An inheritance is evidenced by a letter from the solicitor or executor handling the estate.
A gift from family needs a signed letter confirming that it is a gift, that it is not a loan and that the giver is not taking a share in the property, together with the giver’s ID and a statement showing the money leaving their account.
The deposit cannot be borrowed, so a personal loan or a cash advance on a credit card will be refused. If relatives want to help in a different way, for instance as a guarantor, the paperwork changes again and our guarantor mortgages guide explains how. First-time buyers receiving a gift will find more in our first-time buyer mortgage guide.
Remortgaging and Buy to Let
Remortgaging mostly follows the same list, with a recent statement from your current lender in place of the deposit evidence, showing the balance, the rate and how many years are left. If you are raising extra cash, say what it is for. Our remortgage guide has the detail.
Landlords add tenancy agreements and rent statements. Anyone with four or more mortgaged properties is generally treated as a portfolio landlord and asked for a schedule listing the balance, rent and lender on each, which can take an afternoon to put together. Our buy to let guide explains how rental income is assessed.
Look at Your Credit Report First
Check your credit report before a lender does. You do not send it in, but reading it first gives you time to fix mistakes.
Experian, Equifax and TransUnion each hold their own file on you and the entries do not always match, so all three are worth a look.
The things to watch for are unfamiliar accounts, old addresses and late payments recorded in error. Our guide to how your credit score affects your mortgage application covers what lenders look at.
Decision in Principle
A Decision in Principle is a lender’s early view of what it might lend you, and for most it needs only a handful of details and not the full document pack.
Some lenders run a soft search for it, which leaves no mark on your credit file. Others run a hard search, which does.
It costs nothing to ask which type you are agreeing to before you say yes. Documents are requested at full application.
A Worked Example
Here is how it looks in practice. Imagine a buyer on a £42,000 salary whose bonus fluctuates. Her P60 shows £46,200 for the year, £4,200 of it bonus, and as the bonus is not guaranteed the underwriter wants last year’s P60 as well as this year’s, alongside her three latest payslips.
Her deposit is £25,000. Of that, £17,000 has built up in one savings account over 14 months, which the statements show without any further explanation, and £8,000 is a gift from her father, which needs a signed gift letter, his ID and a statement from his account showing the transfer.
Her current account statements show her salary arriving every month and a single car finance payment, which she lists on the form. Everything on the form can be matched to a piece of paper, so the application goes through without anyone having to chase her. She is a composite example, not a real client.
Mistakes That Hold Up Applications
The most common slip is sending an incomplete statement, with pages missing or a cropped image of just the balance. These go straight back, so download the full PDF from your online banking instead of photographing paper.
The second is details that do not line up. Spelling variations in a name, an address from two moves ago and statements that were fresh when saved but out of date by submission all produce queries, and each query takes days to clear.
Big unexplained credits are the third. If a large amount arrived in the months before your application, note what it was, whether a gift, a bonus or a refund, and keep the paper trail.
Finally, resist sending documents in instalments. Early ones can go out of date while you chase later ones, so gather the lot and send it together. Our guide to why mortgages get declined covers the bigger reasons applications fail.
Why a Broker Helps With the Paperwork
One reason to involve a mortgage broker at this stage is that lenders disagree about paperwork. Some accept an accountant’s certificate where others insist on three years of SA302s, and the treatment of bonus income varies from full credit to partial. A broker who has placed cases with each can tell you which documents you need before you apply, and send the application to a lender that suits what you hold, which is quicker than finding out the hard way.
Frequently Asked Questions
What documents do I need for a UK mortgage application?
At minimum, photo ID, a recent proof of address, evidence of what you earn, your bank statements, details of any debts and proof of where the deposit is coming from.
Extras depend on you. Landlords add tenancy agreements, contractors add their contract, and anyone receiving a gift adds a signed letter.
How many payslips and statements do I need?
Three of each is the norm.
A lender may want more if your pay fluctuates from month to month or the deposit came from several places.
What is the difference between a P60 and an SA302?
Employees get a P60 from their employer once the tax year has ended, showing total pay and tax deducted.
An SA302 is generated from your Self Assessment return and shows what you declared to HMRC, so it is the self-employed equivalent. Self-employed borrowers normally supply it with the matching Tax Year Overview.
Which documents prove self-employed income?
Normally SA302s and Tax Year Overviews for two or three years, sometimes with accounts or an accountant’s letter.
If you have only been trading a short while or your profits swing a lot, your choice of lender narrows, and a broker can steer you to the ones that look at the case sensibly.
What proof of deposit do lenders accept?
It depends on where the money came from, but there must be a paper trail.
Statements for savings, a completion statement for a house sale, a letter from the executor for an inheritance and a signed gift letter for family money. A sum arriving with no explanation is what slows things.
Do I need documents for a Decision in Principle?
Usually not.
You will give a few details such as your address history, job and earnings, and the lender gives a provisional figure. Do check whether it uses a soft or hard credit search, because a hard one is recorded on your file.
Can I send screenshots of my documents?
Best avoided.
Lenders prefer full PDFs from your online banking or employer portal with every page included. Photos of paper copies and cropped images are often sent back for resubmission.
Speak to a documents and application specialist
Speak to a Documents and Application Specialist
Pulling together the right paperwork is often the part of a mortgage application people find most stressful — not because it is complicated, but because it is easy to miss something a lender needs, and that can slow your whole application down. Our advisers check exactly what you need before you apply, based on your employment status and circumstances, so nothing gets held up further down the line.
UK Mortgage Broker is a whole-of-market broker helping clients throughout the UK and globally to secure funding on UK property. We are directly authorised and regulated by the Financial Conduct Authority.
Your home may be repossessed if you do not keep up repayments on your mortgage.
Call: +44 1628 969 500 Email: info@uk-mortgagebroker.co.uk
Related Pages
- Complex Income Mortgages – how lenders treat bonus, commission, contract and other income that is harder to evidence.
- Bad Credit Mortgages – what to expect if your credit file has missed payments, defaults or CCJs, and which documents help.
- Types of Mortgage in the UK – the main mortgage products explained, so you know what you are applying for.
- Mortgage Rates UK – how rates compare across mortgage types once your paperwork is ready.
- First Time Buyer Mortgage with Unsatisfied CCJs and Foreign National Status – a real example of how identity and credit documentation is handled for a buyer with a more complex background.