checklist

Getting Mortgage-Ready: What to Do Before Applying

Prepare for your mortgage application with this checklist. Documents you need, how to boost your approval chances, and mistakes to avoid.

7 min readUpdated: 15 January 2025

Quick Answer

To get mortgage-ready, you'll need proof of income (payslips, P60), bank statements, ID documents, proof of address, and evidence of your deposit source. Start preparing 3-6 months before applying: clean up your credit file, reduce debts, and avoid making big financial changes.

Why preparation matters

A rejected mortgage application wastes time and can damage your credit score. Worse, it might mean losing the property you've set your heart on. Taking time to prepare before applying gives you the best chance of success.

Documents you'll need

Start gathering these documents now. Having everything ready speeds up your application and shows lenders you're organised.

Identity and address

  • Passport (current, valid)
  • Driving licence or other photo ID
  • Proof of address — Utility bill or bank statement from last 3 months
  • Proof of right to live in UK (if not a British citizen)

Income evidence (employed)

  • Last 3 months' payslips — More if you have variable income
  • P60 from your current employer
  • Employment contract — Especially if recently started
  • Letter from employer — Confirming role, salary, and permanence

Income evidence (self-employed)

  • Last 2-3 years' accounts — Prepared by an accountant
  • Tax returns (SA302) for last 2-3 years
  • Tax year overview from HMRC
  • Business bank statements — Last 3-6 months
  • Proof of upcoming contracts (if relevant)

Financial situation

  • Last 3 months' bank statements — All accounts
  • Proof of deposit source — Savings statements, gift letter if applicable
  • Details of existing debts — Loans, credit cards, car finance
  • Pension statements (if using for affordability)
  • Investment statements (if relevant to deposit)

Property details (once you've made an offer)

  • Property details — Address, price, estate agent
  • Lease details (for flats) — Length remaining

6-month countdown to applying

6 months before

Check your credit report

Get your free credit report from all three agencies:

  • Experian
  • Equifax
  • TransUnion

Look for:

  • Errors or wrong addresses
  • Accounts you don't recognise
  • Old debts you've forgotten about

Fix any issues now — disputes take time to resolve.

Register on the electoral roll

If you're not registered, do it immediately. This is one of the easiest ways to boost your credit score.

3-6 months before

Pay down debts

Focus on:

  • Credit card balances (aim for under 30% utilisation)
  • Overdrafts (get back to zero)
  • Small loans you can clear

Every £100/month of debt repayments reduces your borrowing power by roughly £15,000-£20,000.

Stop applying for credit

No new credit cards, phone contracts, or "buy now pay later." Each application leaves a footprint on your credit file.

Cancel unused credit

Close old credit cards and overdrafts you don't use. Too much available credit can worry lenders.

Don't close your oldest credit card if you've had it for years — age of credit history matters. Just stop using it.

1-3 months before

Stabilise your bank accounts

Lenders will review your statements, looking for:

  • Regular income
  • Consistent spending patterns
  • No gambling transactions
  • No unexplained large deposits

Avoid:

  • Bounced payments
  • Using your overdraft
  • Payday loans (even paid off, these are red flags)
  • Excessive spending on takeaways or subscriptions

Gather documents

Start collecting everything from the checklist above. Make digital copies — most applications are online now.

Get an Agreement in Principle

An AIP (also called a Decision in Principle) gives you a rough borrowing figure. It:

  • Usually involves a soft credit check (doesn't affect your score)
  • Is valid for 60-90 days
  • Shows sellers you're serious
  • Gives you a realistic budget

Common mistakes that delay or sink applications

Financial mistakes

  • Taking out new credit — Even buying furniture on finance
  • Changing jobs — Especially during probation periods
  • Large unexplained deposits — Looks like money laundering
  • Gambling transactions — Even small amounts raise concerns
  • Missing payments — Even one missed payment can hurt

Documentation mistakes

  • Submitting blurry documents — Use a scanner app, not quick phone photos
  • Missing pages — Statements must show all pages
  • Out-of-date documents — Most need to be less than 3 months old
  • Name mismatches — Ensure names match across all documents

Application mistakes

  • Applying to multiple lenders — Multiple credit checks hurt your score
  • Inaccurate information — Don't round up your salary or hide debts
  • Forgetting debts — Include everything, even £0 balance credit cards

Use a mortgage broker for your application. They submit to one lender at a time, protecting your credit score. They also know which lenders suit your circumstances.

Special situations

Recently self-employed

Most lenders want 2-3 years of accounts. Options if you have less:

  • Some lenders accept 1 year of accounts
  • Some will use your employed history plus short self-employed period
  • A broker can find specialist lenders

Just changed jobs

If you're still in your probation period, some lenders won't proceed. Options:

  • Wait until probation ends
  • Some lenders are more flexible with certain industries (NHS, teaching)
  • If it's a significant salary increase in the same industry, some lenders are relaxed

Bad credit history

Past credit problems don't always mean rejection:

  • Older issues (5+ years) matter less
  • Some specialist lenders work with adverse credit
  • Be upfront — a broker can guide you to suitable lenders

Buying with a partner

Both applicants are assessed:

  • Both credit files are checked
  • Both incomes count
  • Both debts count against you
  • You're jointly liable for the full mortgage

Your pre-application checklist

Immediately

  • Check all three credit reports
  • Register on electoral roll
  • Fix any credit file errors

3-6 months before

  • Pay down credit cards to under 30% of limit
  • Clear overdraft
  • Stop applying for new credit
  • Cancel unused credit accounts (except oldest)

1-3 months before

  • Gather all documents
  • Stabilise bank account activity
  • Save final evidence of deposit

Ready to apply

  • Get Agreement in Principle
  • Choose a mortgage broker or lender
  • Have all documents digitally ready

After the Agreement in Principle

Once you have your AIP, you're ready to seriously house hunt. The AIP tells you your approximate budget, so you can:

  • Set realistic search criteria
  • View properties within your range
  • Make offers with confidence
  • Move quickly when you find the right place

What Really helps with

With your mortgage preparation sorted, Really helps you find the right property:

  • Search all listings — Every major portal in one place
  • Understand prices — See what properties actually sold for
  • Compare properties — Make confident decisions
  • Stay organised — Track everything from search to keys

Start your property search

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