The Complete Guide to Getting a Mortgage in the UK (2026)

Before you start viewing properties, you need a realistic figure for how much a mortgage lender will advance. This depends on your income, your deposit, your existing financial commitments, and your credit profile. Most lenders calculate the maximum mortgage as a multiple of your gross annual income - typically between 4x and 4.5x for standard applications, with specialist lenders extending to 5x or 5.5x for professional borrowers and high earners.

A joint application combines both applicants' incomes, which is why buying with a partner or family member typically allows significantly more borrowing than a sole application. Monthly financial commitments - car finance, credit card minimum payments, personal loans - are assessed by lenders and reduce the available mortgage amount, as they affect the stress-tested affordability calculation that all regulated mortgage lenders must apply.

Use our free mortgage affordability calculator for an instant indicative figure across different income multiples and deposit sizes. For a precise maximum based on your specific income type - particularly if you are self-employed, a contractor, or a company director - a broker conversation will quickly establish which lenders' calculations are most favourable for your profile.

Your deposit is the single largest variable in determining both your eligibility and the rate you will pay. Mortgages are available with deposits as low as 5% of the property value, but the rates and product choices available improve significantly as the deposit increases. The key LTV bands that trigger meaningful rate improvements are 90%, 85%, 80%, 75%, and 60%. If your deposit puts you close to the next threshold, it is worth calculating whether topping it up by a relatively small amount crosses into a significantly better rate band.

Deposits can come from savings, gifts from family members (most lenders accept gifted deposits from close relatives, provided the giftor confirms no repayment is expected), proceeds from the sale of a previous property, or certain government-backed schemes. Help to Buy ISA bonuses have now largely been superseded - the Lifetime ISA (LISA) remains active and provides a 25% government bonus on savings up to £4,000 per year, which can be used towards a first property purchase.

Mortgage lenders conduct credit searches as part of every application. Before applying, it is worth checking your own credit file with the three main UK credit reference agencies - Experian, Equifax, and TransUnion - to identify and address any errors or issues. You can access your statutory credit report free of charge from each agency.

Common credit file issues that affect mortgage applications include: County Court Judgments (CCJs) - whether satisfied or unsatisfied; defaults on credit agreements; missed or late payment markers; high credit utilisation (the percentage of available revolving credit that is currently used); and multiple credit applications in a short period, which each leave a hard search footprint. Addressing these before applying - including registering on the electoral roll if you are not already, settling outstanding CCJs, and reducing credit card balances - strengthens your application.

Adverse credit does not prevent all mortgage borrowing. The specialist mortgage market has lenders who specifically underwrite borrowers with CCJs, defaults, missed payments, and other adverse events. The key factors are the severity of the adverse history, how long ago it occurred, and whether it has been resolved. A specialist broker will identify the most appropriate lender for your specific credit profile.

Understanding the different mortgage structures available allows you to make an informed choice rather than defaulting to the most familiar option.

Fixed Rate Mortgages: A fixed-rate mortgage locks your interest rate for an agreed period - typically 2, 3, 5, or 10 years. Your monthly payment remains the same regardless of what happens to the Bank of England base rate during the fixed period. At the end of the fixed term, you move to the lender's Standard Variable Rate (SVR) - which is almost always higher - and should remortgage. Fixed rates provide certainty and are typically the right choice when rates are expected to rise, or for borrowers who need payment predictability.

Tracker Rate Mortgages: A tracker mortgage follows the Bank of England base rate plus a fixed margin - for example, base rate plus 1.0%. When the base rate falls, your payment falls; when it rises, your payment rises. Trackers typically have no early repayment charge, making them suitable for borrowers who may want to pay off the mortgage or switch products before the end of the term. They are the right choice when rates are expected to fall.

Capital and Interest vs Interest-Only: Capital and interest (repayment) mortgages reduce the outstanding loan with every monthly payment, so the mortgage is fully paid off at the end of the term. Interest-only mortgages require a monthly payment that covers only the interest - the full loan remains outstanding at the end of the term and must be repaid separately. Interest-only is standard for buy-to-let and available for residential borrowers with a credible capital repayment vehicle.

A mortgage in principle (MIP) - also called a decision in principle (DIP) or agreement in principle (AIP) - is a conditional statement from a lender confirming they would be willing to lend a specified amount, subject to full application and satisfactory valuation. It is not a binding mortgage offer but is widely required by estate agents before they will accept offers on properties.

Getting a MIP before you start viewing properties means you know your budget with confidence, you are taken seriously by vendors and agents, and you can move quickly when you find the right property. A broker can typically provide a MIP same working day for straightforward applications. For complex income profiles, it may take a day or two to identify the right lender and obtain the appropriate MIP.

Most MIPs are valid for 60-90 days. If your circumstances change materially during this period - change of job, new credit, change of deposit - you should inform your broker, as the MIP may need to be refreshed.

With your MIP in place, you can begin making offers with confidence. When your offer is accepted, you will need to instruct a solicitor (conveyancer) to handle the legal work and inform your broker so the full mortgage application can be submitted. It is worth instructing a solicitor early - good conveyancers are busy and being ready from the point of offer acceptance speeds the overall process.

Not all properties are straightforwardly mortgageable. Non-standard construction, listed buildings, short leases, properties above commercial premises, and certain new builds all require specialist lender selection. If you are interested in any of these property types, raise it with your broker before making an offer - understanding the mortgage position in advance avoids wasted conveyancing costs and time.

The full mortgage application requires the lender to conduct a full credit search, verify your income and identity documents, and instruct a valuation of the property.

Once all documents are submitted, the lender's underwriters assess the application. For straightforward cases, a mortgage offer can be issued in five to ten working days. Complex cases - self-employed income, non-standard properties, adverse credit - may take longer. The mortgage offer is valid for a defined period, typically three to six months for standard residential purchases.

Once the mortgage offer is issued and your solicitor has completed the legal due diligence, exchange of contracts takes place - the legally binding stage at which both parties commit to the transaction. A completion date is agreed (typically two to four weeks after exchange), and on completion day your mortgage funds are released, the purchase price is transferred, and you receive the keys.

The time from offer acceptance to completion varies considerably - typically eight to sixteen weeks depending on the conveyancing chain and the complexity of the transaction. New builds and properties with complex titles take longer. Your solicitor will manage the timeline and keep you informed throughout.

You have two routes to a mortgage: applying directly to individual lenders, or using a whole-of-market broker who compares across the full market. For straightforward standard cases, experienced borrowers with a preferred lender and an existing relationship may be comfortable going direct.

For most borrowers - particularly those with complex income, specialist property requirements, or any adverse credit history - a whole-of-market broker provides access to a significantly wider range of products and lenders, often at no additional cost (broker fees on residential mortgages are typically paid by the lender, not the borrower).