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How to Get a Mortgage in the UK: A Step-by-Step Guide for First-Time Buyers

How to Get a Mortgage in the UK: A Step-by-Step Guide for First-Time Buyers

Buying your first home in the UK is one of the most significant financial decisions you will ever make. The mortgage process can feel overwhelming, but broken down into clear steps, it becomes far more manageable. This guide walks you through everything you need to know, from assessing your finances to collecting the keys on completion day.

Step 1: Assess Your Financial Position

Before approaching any lender, you need an honest picture of your finances. Check your credit reports with all three UK agencies — Experian, Equifax, and TransUnion — for free via their respective services or through a platform like ClearScore or Credit Karma. Lenders will scrutinise your credit history, so address any errors or defaults before applying.

Calculate your monthly income after tax, your existing debt commitments, and your regular outgoings. Most UK lenders use an affordability assessment rather than a simple income multiple, so understanding your net disposable income is crucial.

Step 2: Save Your Deposit

The minimum deposit for a residential mortgage in the UK is typically 5% of the property value, though 10–15% will unlock significantly better interest rates. On a £250,000 property, a 10% deposit is £25,000. The larger your deposit, the lower your loan-to-value (LTV) ratio, and the more favourable the deals available to you.

Consider opening a Lifetime ISA (LISA) if you are between 18 and 39. The government adds a 25% bonus on contributions up to £4,000 per year, giving you up to £1,000 free per tax year towards your deposit.

Step 3: Get an Agreement in Principle

An Agreement in Principle (AIP) — sometimes called a Decision in Principle or Mortgage in Principle — is a conditional statement from a lender saying how much they may be willing to lend you. It is not a binding offer, but estate agents and sellers will often expect you to have one before accepting an offer on a property.

You can obtain an AIP from major lenders such as Halifax, Nationwide, Barclays, HSBC, and Lloyds, or through a mortgage broker. Most AIPs involve only a soft credit check, meaning it will not affect your credit score.

Step 4: Find a Property and Make an Offer

With your AIP in hand, you can start viewing properties confidently. Once you find a home you want, make an offer through the estate agent. In England and Wales, offers are not legally binding until contracts are exchanged, so you can withdraw at any point before then — as can the seller.

Step 5: Submit Your Full Mortgage Application

Once your offer is accepted, you submit a full mortgage application to your chosen lender. You will need to provide:

  • Proof of identity (passport or driving licence)
  • Proof of address (utility bills or bank statements, last 3 months)
  • Proof of income (P60, last 3 months' payslips, or 2–3 years' accounts if self-employed)
  • Bank statements (last 3–6 months)
  • Details of any existing loans, credit cards, or financial commitments

The lender will conduct a hard credit check at this stage, which will appear on your credit file.

Step 6: Property Valuation and Survey

Your lender will arrange a valuation to confirm the property is worth the agreed purchase price. This is for the lender's protection, not yours. You should also commission your own survey — either a HomeBuyer Report or a full Building Survey — to identify any structural issues that could affect the property's value or cost you money after purchase.

Step 7: Receive Your Mortgage Offer

If the lender is satisfied with the valuation and your application, they will issue a formal mortgage offer. This document sets out the loan amount, interest rate, repayment term, and any conditions. Read it carefully. Your solicitor will also review it as part of the conveyancing process.

Mortgage offers are typically valid for 3–6 months. If your purchase is delayed beyond that, you may need a formal extension.

Step 8: Conveyancing and Exchange of Contracts

Your solicitor or licensed conveyancer handles the legal side of the purchase. They conduct searches (local authority, drainage, environmental), review the contract, and raise enquiries with the seller's solicitor. Once both parties are satisfied, you exchange contracts. At this point, you pay your deposit and the sale becomes legally binding. A completion date is agreed.

Step 9: Completion

On completion day, your mortgage lender releases the funds to your solicitor, who transfers the money to the seller's solicitor. Once the funds are received, you get the keys. You are now a homeowner.

You will need to pay Stamp Duty Land Tax (SDLT) if the property costs more than £125,000, though first-time buyers receive relief on properties up to £500,000. Your solicitor will handle the SDLT return.

Choosing the Right Lender

The UK mortgage market is competitive. Beyond the high-street names — Halifax, HSBC, Nationwide, Barclays, Lloyds, Santander, and NatWest — challenger banks and specialist lenders may offer better rates depending on your circumstances. A whole-of-market mortgage broker can compare deals you cannot access directly and may save you thousands over the mortgage term.

All mortgage lenders in the UK are regulated by the Financial Conduct Authority (FCA). Always verify a lender is FCA-authorised before proceeding.

Common Mistakes First-Time Buyers Make

  • Not checking their credit report beforehand — errors can delay or derail an application.
  • Overestimating what they can borrow — use a mortgage affordability calculator first.
  • Forgetting the additional costs — solicitor fees, survey costs, removal costs, and SDLT can add £5,000–£15,000 to your budget.
  • Accepting the first offer — shopping around or using a broker often yields a meaningfully better rate.
  • Applying for new credit before completion — new credit applications can affect your score and raise red flags with lenders.

Resources to Help You

The MoneyHelper service (formerly the Money Advice Service), funded by the government and regulated by the FCA, offers free, impartial guidance on mortgages and home buying. Their mortgage calculator and step-by-step guides are an excellent starting point for any first-time buyer.

Getting a mortgage in the UK is a structured process with clear milestones. Take it one step at a time, keep your finances in good order, and do not be afraid to ask questions — whether of your broker, your solicitor, or your lender. The paperwork is considerable, but the outcome is worth it.

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