Rent vs Buy Calculator
Compare the financial outcome of renting vs buying over a chosen period. Includes house price appreciation, mortgage repayments, and opportunity cost of the deposit.
Reviewed by Richard Ross · Last updated April 2026
How Rent vs Buy Calculator works
How this comparison works
Buying net cost = total mortgage payments + deposit − equity at end of period. Renting net cost = total rent paid − opportunity return on deposit (invested at 5%/year in the stock market). Both figures represent money "spent" that you do not get back.
Key variables
The comparison is highly sensitive to: house price growth rate, mortgage rate, comparison period, and the assumed investment return on the deposit. At 0% house price growth, renting often wins over short periods. At historical average growth (3–5%), buying often wins over longer periods.
What this calculator does not include
Stamp duty, conveyancing costs, maintenance (1–2% of property value per year), mortgage arrangement fees, estate agent fees on sale, and rent increases are not included. Capital Gains Tax on the sale is also excluded — which may apply if the property is used as a buy-to-let during the period. Buying has significantly higher transaction costs that take time to recover.
Capital gains tax calculator →The real answer
The rent vs buy question is as much about lifestyle flexibility and financial security as pure numbers. Renting offers mobility; buying offers stability and forced savings. This calculator helps frame the financial side — the right answer depends on your personal circumstances.
UK housing market context for 2025
Average UK house prices rose approximately 60% in the decade to 2022, before falling 3–5% in 2022–23 as mortgage rates rose sharply. Prices have since stabilised. The average UK house price in early 2025 is approximately £285,000 (ONS). Average rents rose 8–10% per year between 2022 and 2024 due to constrained rental supply and landlord exits from the sector. This makes the break-even period for buying shorter in many markets than it was five years ago.
Shared Ownership as a middle path
Shared Ownership allows buyers to purchase a share of a property (typically 25–75%) and pay rent on the remainder to a housing association. It bridges the gap between renting and full ownership. Buyers can "staircase" their share upward over time. Downsides include: leasehold tenure, service charges, restrictions on subletting, and complexity when selling. Shared Ownership properties are only available from housing associations and new-build developments, and eligibility is subject to income limits (typically household income under £80,000, or £90,000 in London).
Source: ONS — UK House Price Index, GOV.UK (gov.uk/government/collections/uk-house-price-index-reports). ONS — Private rental market statistics.
Frequently asked questions
Is it better to rent or buy in the UK?
It depends on how long you plan to stay, local house prices, mortgage rates, and your personal finances. Over 10+ years in most UK markets, buying has historically outperformed renting due to capital growth. Over shorter periods or in high-price areas, renting can be financially comparable.
What costs are involved in buying a house?
Stamp duty (0–12% depending on price and buyer type), conveyancing fees (£1,500–2,500), survey costs (£400–1,500), mortgage arrangement fee (£0–2,000), and moving costs. These upfront costs take time to recover through ownership benefits.
How does house price growth affect the comparison?
House price growth is the single biggest variable. At 3% annual growth, a £300,000 property is worth £403,000 after 10 years. This capital gain often tips the balance in favour of buying, even accounting for mortgage interest costs.
What if I can't afford to buy?
Help to Buy equity loans, Shared Ownership, and the Mortgage Guarantee Scheme are government schemes designed to help people buy with smaller deposits. A mortgage broker can advise on the full range of options.
How long do I need to own before buying beats renting?
The break-even period depends on transaction costs, local price growth, and mortgage rates. In most UK markets, buyers typically need to stay for at least 3–5 years to recover stamp duty, legal fees, and survey costs through capital growth. In high-price London postcodes with slower growth, break-even can extend to 7–10 years. Run the calculator with your specific figures and a shorter comparison period to see when buying becomes cost-effective.
Does renting waste money?
Renting is not "wasting money" — you are paying for housing, flexibility, and freedom from maintenance costs and price risk. The opportunity cost of your deposit invested in equities (historically ~7% per year real return) can offset the absence of capital growth. Whether renting is more efficient than buying depends entirely on your personal timeframe, local market, and financial goals.
Does the calculator account for property price appreciation?
Yes. The calculator models property price growth over the comparison period. Historically, UK house prices have risen around 3-4% per year on average over long periods, though with significant regional variation and short-term volatility. Changing the assumed growth rate has a large impact on the outcome — in high-growth markets, buying wins decisively over long periods; in stagnant markets, renting can be financially superior.
What costs does the buying scenario include?
The buying scenario includes: mortgage interest payments, capital repayment, stamp duty (one-off), legal fees (one-off), survey costs, insurance (buildings and contents), maintenance (typically estimated at 1-2% of property value per year), and mortgage arrangement fees. It then models the property's equity value at the end of the period against the total costs paid — including the opportunity cost of the deposit if it were invested instead.
When does buying become more expensive than renting?
Buying typically has higher upfront and early costs (stamp duty, legal fees, mortgage arrangement fees). The break-even point — where the total cost of buying falls below the equivalent rent paid — typically takes 3-7 years depending on local market conditions, mortgage rate, and property price growth. In very high-rent markets (London, for example), buying can break even in 3-4 years. In lower-growth areas with high house prices relative to rents, it may take 10+ years.
What are the non-financial reasons to buy or rent?
Buying provides security of tenure, the freedom to make home improvements, and typically a sense of permanence and community. Renting offers flexibility — easier to relocate for work, no maintenance responsibility, and lower capital commitment. For people in volatile careers, planning to move within 5 years, or living in areas where buying is unaffordable, renting is often the rational financial and lifestyle choice despite the cultural bias toward homeownership in the UK.
Your home may be repossessed if you do not keep up repayments on your mortgage.
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