The deposit is the most visible part of buying your first home, but it is not the whole budget. You will also need to consider legal work, mortgage costs, tax, moving expenses, repairs and the monthly cost of running the home. The figures depend on your lender, location, property and personal circumstances, so this guide focuses on how to build a realistic plan rather than promising one universal total. Use current official calculators and advice before you commit.
1. Start with the monthly number that feels sustainable
Begin by listing your take-home income and regular spending. Include rent or current housing costs, travel, debt repayments, food, childcare, subscriptions, insurance and savings. Then estimate the home’s mortgage payment alongside council tax, utilities, service charges if applicable and routine maintenance. Leave room for annual costs and unexpected bills. A lender’s maximum borrowing estimate is not the same as a personal affordability target that leaves you comfortable.
Try more than one scenario. Ask how a payment might change if an introductory mortgage rate ends, interest rates move or one household income falls. Test a lower income month if you are self-employed or work variable hours. Your goal is not to predict the future perfectly; it is to see whether the purchase remains manageable under reasonable pressure. Keep an emergency fund separate from the cash needed to complete so one repair does not immediately create a financial crisis.
2. Work out a realistic deposit and loan-to-value
A larger deposit can reduce the amount borrowed and may open up different mortgage products, but it is not sensible to use every pound of savings if that leaves no money for fees or emergencies. Compare the cash needed at several deposit levels and ask a mortgage adviser or lender how the loan-to-value ratio affects available rates and criteria. The property’s valuation, your financial profile and the lender’s rules all matter.
When planning a deposit, confirm where funds are held and what evidence the lender or solicitor will require. Gifts, transfers between accounts, inheritance and savings from abroad can require additional documentation. Tell your conveyancer and lender early and provide accurate records. Do not move large sums or take on new borrowing without checking whether it could affect an application or source-of-funds checks. Keep deposit money accessible in the form and account your professionals advise.
3. Compare mortgage costs beyond the headline rate
An advertised mortgage rate does not show the full cost. Compare product fees, valuation fees, booking fees, arrangement fees, the length of any introductory deal, early-repayment charges, portability, overpayment limits and the rate that applies after the deal ends. A lower initial rate can cost more overall when a large fee is added. Ask for a personalised illustration that shows the payment and total cost over the relevant comparison period.
A mortgage in principle can help you understand a possible borrowing range but it is not a guarantee or final offer. Lenders assess income, outgoings, credit commitments, employment and the property before issuing a formal offer. Keep your application details truthful and consistent, and respond promptly to requests. If you are uncertain about affordability or mortgage type, regulated mortgage advice can help explain your options. Do not treat an online calculator as a decision from a lender.
4. Estimate legal fees, searches and the survey
Ask conveyancers for itemised quotes that separate their professional fee from searches, identity checks, bank-transfer costs, Land Registry fees, leasehold supplements and other disbursements. The cheapest headline quote may omit work that is likely for your purchase. Tell the firm if the home is leasehold, new-build, shared ownership, in a chain or has unusual title features, and ask which additional charges might apply.
Budget for a survey chosen for the property’s age and condition. A lender’s valuation is not a buyer’s building survey. Ask a surveyor what the inspection includes, what it cannot check and whether follow-up investigations may be recommended. Older homes, extensions, visible movement, unusual construction or rural systems can merit specialist advice. If a report identifies a concern, allow for the cost of getting it investigated and discuss possible next steps with your conveyancer before exchange.
5. Check property tax for your location
The tax on a home purchase depends on where the property is and your circumstances. SDLT applies to many purchases in England and Northern Ireland; Wales uses Land Transaction Tax and Scotland uses Land and Buildings Transaction Tax. First-time buyer relief, owning another property, residency and the purchase price can change the amount. Thresholds and rates may change, so check the current official calculator for the relevant nation shortly before proceeding.
Do not assume that “first-time buyer” means no tax in every situation. Relief usually has defined eligibility rules, can depend on all joint purchasers and may be unavailable above particular price limits. If you are purchasing jointly, own or previously owned another home, inherited a share, or are buying an additional property, ask your conveyancer or a qualified tax adviser how the rules apply. Treat any estimate in an online article as a starting point, not a final calculation.
6. Add the moving and setup costs
Moving costs depend on how far you are travelling, how much you own and whether you pack yourself. Get written quotes from removal firms, check insurance and parking arrangements, and ask about extra charges for stairs, storage or difficult access. If you are moving into a flat, confirm lift bookings, loading bays and move-in rules before choosing a date. You may also need to pay for cleaning, temporary storage or childcare on moving day.
Set aside money for the first weeks in the home: basic furniture, locks, curtains, appliances, broadband installation, utility account changes and any decorating you cannot delay. These small costs accumulate. Read meter instructions, locate stopcocks and fuse boards, and understand heating controls before you arrange upgrades. If you expect to renovate, separate essential safety or repair work from cosmetic changes, and obtain quotes before assuming you can complete everything immediately after moving.
7. Estimate monthly running costs
Council tax varies by local authority and band. Utilities depend on the property’s size, insulation, heating system, household use and energy prices. Check the current council-tax band and ask about the home’s Energy Performance Certificate, but remember that real bills depend on how the home is used. Include water, broadband, contents insurance and any service charge in your monthly budget.
For a flat, request the latest service-charge accounts, budget, reserve-fund details and information about planned work. For a house, consider roof, boiler, windows, drainage, boundaries and garden maintenance. In rural areas, test broadband and mobile coverage and understand private water or sewage systems if present. Get specialist advice where needed. A sensible monthly maintenance allowance is personal: it should reflect the property’s age, condition and size rather than an arbitrary fixed percentage alone.
8. Build in a buffer for delays and surprises
A property transaction can take longer than expected because of a chain, delayed searches, missing paperwork, mortgage questions or a survey finding. Avoid booking non-refundable services too early. Keep enough cash available for a revised completion date, temporary accommodation, storage or another month of rent if your move is delayed. Ask your conveyancer and estate agent what milestones must be reached before you make firm arrangements.
Leave a contingency for the first repair. Even a well-presented home may need a new appliance, a leak fix or a locksmith visit. If you buy a new-build, understand what is covered by the warranty, how to report defects and what is excluded; do not assume the developer will cover every issue. If you buy an older home, keep the survey and maintenance records in one place and prioritise safety, water ingress and essential systems over cosmetic projects.
9. Understand the costs of leasehold and shared ownership
If you are buying a leasehold flat, include service charges and any ground rent in affordability, and understand how they can change. Ask about planned major works, buildings insurance, reserve funds and the charges due on a future sale or subletting. Review the lease with a solicitor and verify that it allows your intended use. A mortgage payment alone may understate the cost of owning the flat.
Shared ownership can reduce the initial share price but usually includes rent on the unsold share, service charges and later costs if you buy more shares. Read the lease, rent-review terms and staircasing process carefully. Check eligibility and get independent advice before committing. Other schemes can have their own rules and charges. Do not compare a scheme’s initial payment with a standard mortgage without including all monthly obligations and the cost of selling or moving.
10. Use a simple cash-flow timetable
Create a one-page schedule with each cost, who needs to be paid, the likely date and whether the amount is a quote or an estimate. Group costs into “before offer”, “during conveyancing”, “exchange”, “completion” and “after moving”. Keep the deposit, tax, legal fees and moving funds distinct so you do not accidentally spend money needed to complete. Ask your conveyancer for the expected completion statement and update it as bills become clearer.
If you are buying with someone else, agree who will fund the deposit and fees and how you will track payments. Ask a solicitor about documenting ownership shares or unequal contributions. Do not rely on an informal promise where a written agreement is needed. Save copies of quotes, invoices and bank transfers. For bank details, verify any change using a trusted telephone number, because property transactions are targets for payment fraud.
11. Compare homes by total cost, not just asking price
Two homes at similar prices can have very different ongoing costs. One may need a new roof, have a high service charge or require expensive commuting; another may be cheaper to heat or easier to maintain. Compare the whole financial picture over the period you expect to own the home. Include likely repairs, transport, energy, council tax, insurance, leasehold payments and any planned improvement you would genuinely undertake.
Also consider how flexible the property will be if your needs change. A second bedroom could support working from home or a growing family, while a convenient location might reduce car costs. But avoid assuming that a future resale price or rental income is guaranteed. Treat forecasts as uncertain and test what happens if you need to sell sooner or if costs rise. The right home is a balance between affordability, suitability and manageable risk.
12. Where to get reliable help
Use a regulated mortgage adviser or lender for borrowing questions, a conveyancer or solicitor for the legal transaction, and a qualified surveyor for property condition. Each professional has a distinct role. Ask what is included in the service, what is not covered and how to raise a concern. For tax, check the relevant government authority and ask for specialist advice if your circumstances are not straightforward.
Government guides and calculators are useful for current process and tax information, but they do not decide how a specific lease, title or mortgage applies to you. Keep dates and rates current by checking official pages directly. Our UK buying guide walks through the transaction, and our property search lets you explore the current examples. Contact us when you are ready to discuss a property or arrange a conversation about your search.
13. Final first-home budget checklist
Before making an offer, know your sustainable monthly payment, deposit, expected mortgage fees, legal quote, searches, survey budget, possible purchase tax, moving costs and a post-completion emergency fund. Confirm what evidence of deposit funds is required. Ask whether the home is leasehold and, if so, understand service charges and major-work exposure. Check the council-tax band, energy information and practical travel costs.
Before exchange, update the estimates with real invoices and professional advice. Confirm the mortgage offer is valid, the conveyancer’s completion statement is understood and the required funds will be available in time. Keep plans flexible until dates are certain and verify payment instructions independently. Buying your first home involves uncertainty, but a clear budget and the right professional checks can make the decisions easier to compare. This material is general information, not a promise of costs or a substitute for personal advice.
Further reading from official sources
Rules, rates and procedures can change. Check the latest primary guidance and speak to a qualified professional about your own purchase.