Buying your first home is likely to be the biggest purchase of your life, and the process can feel like a maze of unfamiliar terms, paperwork and waiting. The good news is that the journey follows a predictable path: get your finances ready, secure a mortgage agreement in principle, find the right property, make an offer, and then let the legal work carry you to completion day. This step-by-step guide explains how to buy your first home in the UK, what each stage involves, and the mistakes that catch first-time buyers out.
Step 1: Sort your deposit and credit profile early
Everything starts with the deposit. Most first-time buyers put down between 5% and 20% of the purchase price, and a larger deposit usually unlocks better mortgage rates. Work out what you can save each month and keep the money somewhere accessible; our round-up of high-interest savings accounts in the UK can help your deposit grow a little faster while you save. Lenders will also study your credit history, so spend the months before you apply tidying it up: pay bills on time, clear expensive card balances and check your credit file for errors. Our guide on how to improve your credit score walks through the quickest wins. Small improvements here can make the difference between a standard rate and a much cheaper one.
Step 2: Work out what you can actually afford
A mortgage lender will typically offer around four to four-and-a-half times your annual income, but the right budget is the one that leaves your monthly life comfortable, not stretched. Add up the full cost of buying, not just the price of the property: solicitor fees, survey costs, mortgage arrangement fees, moving expenses and, for homes above the first-time buyer thresholds, Stamp Duty. Keep an emergency fund separate from your deposit — moving into a home with zero savings behind you is stressful if the boiler fails in the first winter. It also helps to practise living on your expected mortgage payment for a few months before you buy; our practical money-saving tips can free up more room in your budget than you might expect.
Step 3: Get a mortgage agreement in principle
An agreement in principle (AIP) is a lender’s provisional statement of how much they are willing to lend you, based on a soft review of your income and credit. Estate agents often ask to see one before taking your offer seriously, and it stops you falling in love with homes outside your real price range. You can apply through a bank directly or use a mortgage broker, who can compare deals across many lenders and explain the difference between fixed, tracker and discounted rates. An AIP usually lasts 60 to 90 days and does not commit you to that lender.
Step 4: House hunting with a clear checklist
Now the enjoyable part — but go in with priorities ranked. Location, commute, schools, noise, parking and room to grow rarely all fit the budget, so decide your top three non-negotiables in advance. View each property twice if you can, once in daylight and once in the evening, and check the unglamorous details: water pressure, phone signal, storage, damp patches and the age of the boiler. Ask why the sellers are moving and how long the property has been on the market; both answers are useful when you negotiate.
Step 5: Making an offer and instructing a solicitor
When you find the right place, offer through the estate agent — politely, in writing, and with your AIP and proof of deposit ready to show you are a serious, proceedable buyer. If your offer is accepted, instruct a conveyancing solicitor straight away and submit your full mortgage application. Delays at this stage are the biggest cause of chains stalling, so answer every request for documents quickly. You will also book a survey: the lender’s valuation checks the property is worth the loan, while a homebuyer survey or full structural survey can reveal defects you would want to know about before you are legally committed.
Step 6: From mortgage offer to exchange and completion
Once the lender is satisfied, you receive a formal mortgage offer. Meanwhile your solicitor runs local searches, raises enquiries with the seller’s solicitor and reviews the contract. When both sides are ready, you exchange contracts and pay the deposit — at this point the purchase becomes legally binding and a completion date is fixed. On completion day, the balance is transferred, and you collect the keys. Before you move your furniture in, take meter readings, test the heating and change the locks for peace of mind.
Help and schemes worth checking before you buy
Before you finalise your budget, spend an hour checking what help you may qualify for, because schemes for first-time buyers change regularly and the savings can be significant. A Lifetime ISA lets savers aged 18 to 39 add up to a set annual amount each year with a government bonus added on top, provided the money goes towards a first home that meets the scheme’s conditions. First-time buyers may also pay reduced or no Stamp Duty below certain price thresholds, which can save thousands on completion costs — the exact thresholds are published on the government website and are worth confirming for the current tax year. Shared ownership is another route in: you buy a share of a property and pay rent on the rest, which lowers the deposit you need to get started. None of these schemes suits everyone — the Lifetime ISA has withdrawal penalties if the money is not used as intended, and shared ownership has its own rules on selling and staircasing — so read the official guidance carefully and, if the sums are large, take independent financial advice before committing.
How long does the whole process take?
From accepted offer to completion day, most first-time purchases take roughly two to four months, and chain-free buys can move faster. The searches, mortgage valuation and contract work all run in parallel, so the buyers who chase weekly and return paperwork the same day genuinely finish sooner. Build that timescale into your plans: keep your notice period, removals and time off flexible until the completion date is fixed at exchange, rather than assuming a date and having to rearrange everything when the chain moves.
Common first-time buyer mistakes to avoid
The most frequent errors are stretching the budget to the lender’s maximum, forgetting the extra buying costs, skipping a proper survey, and making big purchases on credit between mortgage application and completion — a new car finance agreement can genuinely derail an approval. Avoid changing jobs mid-application if you can, keep your paperwork organised, and chase politely but regularly; chains move fastest for the buyers who stay visible. Buying your first home takes patience, but each stage is manageable once you know the order of play, and the day the keys are in your hand makes every form worth it.
