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Mortgages & Buying a Home: Complete UK Guide (2025)

Welcome to your complete guide to mortgages and buying a home in the UK. Whether you’re a first-time buyer, moving home, or exploring investment properties, this hub will walk you through everything you need to know in simple, clear language.

How Mortgages Work in the UK

A mortgage is a loan secured against a property. Most lenders let you borrow between 4–5.5× your income depending on affordability checks, credit history, and deposit size.

Key factors lenders assess:

  • Income and employment type
  • Deposit amount (LTV)
  • Credit history and existing debts
  • Monthly outgoings
  • Property type and valuation

Types of Mortgages Explained

A quick overview of the main mortgage products:

Fixed-Rate Mortgage

Your interest rate stays the same for 2, 3, 5, 7 or 10 years.

Variable-Rate Mortgage

Your payment changes based on lender or Bank of England decisions.

Tracker Mortgage

Follows the Bank of England base rate plus a set percentage.

Interest-Only Mortgage

You pay interest only, capital is paid later. Usually for landlords or high-income applicants.

How Much Can You Borrow?

Affordability depends on income, debts, credit score and household spending.

Most people can borrow around 4–5× annual income, but joint applicants and high earners may access higher multiples.

Use our tools:

  • Mortgage Affordability Calculator
  • Mortgage Calculator

Deposits, LTV & How Rates Work

Your deposit affects your LTV (Loan to Value). Lower LTV = cheaper rates.

Typical deposits:

  • 5% – minimum for most lenders
  • 10% – better rates
  • 15–25% – strongest pricing

Interest rates are influenced by:

  • Bank of England base rate
  • SWAP rates
  • Lender risk appetite

Costs of Buying a Home

Buying a property involves several costs beyond your deposit.

Upfront costs:

  • Stamp Duty / LBTT / LTT
  • Solicitor fees
  • Valuation / survey
  • Mortgage fees
  • Moving costs

Ongoing costs:

  • Mortgage payments
  • Insurance
  • Maintenance

Step-by-Step: Buying a Home

  1. Save your deposit
  2. Check your credit
  3. Get an Agreement in Principle
  4. Start viewing properties
  5. Make an offer
  6. Apply for your mortgage
  7. Conveyancing & surveys
  8. Exchange contracts
  9. Completion — collect your keys!

Tools & Calculators

Easily plan your home purchase using our calculators:

First-Time Buyers

Buying your first home? Visit the First-Time Buyer Hub for guides on:

  • Deposit savings
  • Schemes (LISA, Shared Ownership, 5% Mortgage Scheme)
  • Step-by-step buying process
  • First-time buyer Stamp Duty rules

Remortgaging

Learn when it makes sense to switch your mortgage:

  • Coming off a fixed-rate deal
  • Increasing your borrowing
  • Debt consolidation
  • Product transfers

Buying to Let & Property Investment

Explore guides covering:

  • Buy-to-let mortgages
  • Rental yield calculations
  • Tax considerations
  • Pros & cons of property investment

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