Net asset gap
£45,625Buy ahead at 30 yearsBuy vs rent
Rent vs buy: which is better for me?
Last updated 23 July 2026
Run a rent vs buy scenarioA UK rent vs buy decision is more than just comparing the monthly payments. Buying needs a deposit, stamp duty, and fees upfront; owning adds maintenance and buildings insurance. Renting usually needs less cash upfront, so more of your money can be invested in something other than this property. Comparing net assets at the end of a mortgage term shows which path pulls ahead under your assumptions.
Ask which path leaves you better off at the end of the mortgage term: buying the home, or renting and investing the cash you would have put into buying. Whichever ends with more is ahead on the cash and asset test. This is a worked comparison, not a forecast of house prices or investment returns.
The model only compares money: cashflows and net assets. It does not score personal preferences such as wanting to put down roots, needing flexibility to move, how you feel about owning, or other lifestyle factors that often decide the choice in practice.
What to include in the comparison
- Upfront cash to buy: deposit, stamp duty, conveyancing, and survey.
- Running costs on the buy side: council tax, maintenance, insurance, and leasehold charges.
- On the rent side: investing spare cash when rent is cheaper month to month.
- Mobility: moving every few years spreads buying costs over a shorter stay, which can favour renting.
Worked example: £300,000 home vs £1,350 rent
Nation and buyer type change stamp duty (SDLT, LBTT, or LTT) and the cash needed to start. Monthly ownership lines below stay illustrative England-style defaults.
Buy
Home price
£300,000
Deposit
15%
Interest rate
5%
Term
30 years
Ownership costs
On
Rent
Monthly rent
£1,350
Rent growth
2.5% a year
Investment return
8% a year (before tax)
Break-even month
32Buy assets overtake rent around month 32Key takeaways
- Buying needs a large cash outlay upfront (here about £52,000 including deposit, stamp duty, and fees). Renting usually needs little or none. That gives rent an early lead on invested assets.
- Invested spare cash is assumed to grow faster than the home (8% a year versus 3% house-price growth).
- Rent is all cost. A mortgage repayment is part interest and part capital: the capital portion builds equity as you pay.
- Mortgage repayment alone is about £1,369 a month; ownership running costs sit on top.
- Under these assumptions, buy ahead on net assets by about £45,625 after 30 years.
- Buy assets overtake rent around month 32, so the early rent lead does not last the whole term.
How sensitive is the answer?
Small changes in the assumptions can flip who finishes ahead. The tables below keep the worked example fixed (£300,000 home, 15% deposit, 5% rate, 30 years, £1,350 rent) and vary one input at a time. A monthly cashflow crossover is still not the same as winning on net assets.
Investment return
If you rent, spare cash is assumed to earn a return. Higher returns favour renting; lower returns favour buying.
House-price growth
Faster house-price growth builds buy-side equity. Flat or weak growth leaves more of the end result with the renter’s invested pot.
Interest rate
A higher mortgage rate raises the monthly repayment and total interest, which makes buying harder to beat on net assets when rent and investment assumptions stay the same.
Key takeaways
- Around the worked example, moving investment return from 8% to 10% is enough for rent to finish ahead on net assets.
- House-price growth needs to stay near 3% a year or higher for buy to finish ahead in this scenario.
- Raising the mortgage rate from 5% to 6% is also enough for rent to finish ahead under these other assumptions.
- The worked example is close to a tipping point: modestly stronger investment returns, weaker house prices, or a higher mortgage rate can flip the result to rent. Treat the headline gap as illustrative, not a forecast, and re-run the comparison with your own assumptions.
When this comparison applies
A rent vs buy scenario only makes sense when both paths are realistically open to you. If you cannot buy, or you would not invest spare cash while renting, the model’s end-of-term totals are not a fair test.
Even when one path looks better on cash and assets, the decision is still personal. Stability, freedom to move, neighbourhood fit, and how you feel about owning or renting sit outside the spreadsheet. Use the numbers as one input, not the whole answer.
Assumptions needed
- Deposit and purchase cash: you can cover the deposit plus stamp duty, conveyancing, survey, and other buying fees without leaving yourself unable to live.
- Mortgage availability: a lender would offer you the loan you model (income, credit, deposit size, and affordability checks all pass).
- Investing spare cash: if you rent, you can and would put the cash not spent on buying (and any monthly surplus) into investments rather than spending it.
- Like-for-like housing: you are comparing a similar home in a similar area, not a cheap flat versus a larger purchase.
- Horizon: you expect to stay long enough for the mortgage term (or your chosen stay) to matter; moving every year changes the maths.
- Ongoing affordability: you can meet mortgage repayments plus ownership running costs in months when those exceed rent.
Quick answers
How should I compare renting vs buying in the UK?
Compare more than rent versus the mortgage repayment. Include upfront buying costs, ownership running costs, and what you do with spare cash if you rent. Comparing net assets at the end of the mortgage term is a useful check; it is not a forecast of house prices or investment returns.
Does a monthly cashflow crossover mean buying is better?
No. A monthly cashflow crossover (when mortgage plus running costs drop below rent) is only about cashflow. Upfront costs, equity, house prices, and invested cash still matter for the longer picture.
How do England, Scotland, and Wales change a rent vs buy comparison?
Stamp duty is different in each nation: SDLT in England and Northern Ireland, LBTT in Scotland, and LTT in Wales. That changes cash needed to buy and what you could invest if you rent instead. Council tax and some ownership costs also differ by nation. Switch nation and buyer type in the worked example, or open the stamp duty calculator for a full band breakdown.
If the model says buy (or rent) is ahead, should I follow that?
Not on its own. The comparison only covers the cash and asset side. Preferences such as putting down roots, needing to move often, or simply preferring one way of living are real inputs the calculator cannot score. Use the result as one factor in a wider decision.
Try your scenario
Change the inputs on the calculator (price, nation, or buyer type) and see how the numbers respond.
Run a rent vs buy scenarioAssumptions and sourcesRelated reading
Palta Money is for education and planning only. It is not regulated financial advice. Tax rules and rates change; confirm figures with official sources or a qualified adviser before you commit.