Rent vs Buy Calculator UK
This rent vs buy calculator helps you compare whether renting or buying could leave you in a stronger financial position over time. It is designed for UK users who want to weigh up monthly housing costs, upfront buying costs, property growth and the potential value of investing the money not tied up in a home purchase.
Rather than focusing only on monthly mortgage payments versus rent, the calculator looks at the wider picture so you can compare the estimated net position after a set number of years.
What this calculator includes
- Property price, deposit and mortgage repayment costs
- Mortgage fees and upfront buying costs
- Monthly maintenance and service costs for homeowners
- Monthly rent and annual rent increases
- Estimated house price growth over time
- Selling costs when the property is sold
- Investment return assumptions for money kept out of the property
How the calculator works
In the buying scenario, the tool estimates mortgage payments, tracks the remaining mortgage balance and applies your assumed house price growth over the comparison period. It then deducts selling costs to estimate the equity you may keep if you sell.
In the renting scenario, it assumes the upfront cash you did not use for a deposit and buying costs remains available to invest. If renting is cheaper each month than owning, that difference can also build up over time based on your assumed investment return.
Why results may vary
Real-world outcomes can differ from the estimate because house prices, rent increases, mortgage deals, investment returns and maintenance costs rarely follow a straight line. The tool is most useful for comparing scenarios rather than predicting an exact future result.
Who this calculator is for
- First-time buyers deciding whether to keep renting or buy soon
- Home movers comparing short-term and medium-term options
- People unsure whether buying makes sense over a 5 to 10 year period
- Anyone wanting to compare ownership costs with renting and investing
Rent vs buy examples
- A buyer with a larger deposit may reduce interest costs enough to outperform renting sooner
- If house price growth is weak and rent stays relatively low, renting could come out ahead over shorter timeframes
- If mortgage rates fall or expected investment returns are lower, buying may become more attractive
Important note
This calculator provides estimates only and does not constitute financial, mortgage, tax or legal advice. Always check the full costs of buying and renting before making a decision.
Use the calculator above to compare renting and buying based on your own assumptions and see how changes to rates, growth or costs affect the outcome.