Fixed rates
A two-year fix locks your payment for a shorter period — you reassess sooner if rates move. A five-year fix trades flexibility for longer certainty. Market pricing shifts: sometimes five-year deals sit close to two-year pricing; sometimes they do not. The trade-off is really about how long you want payment certainty and when you are willing to look again.
There is no single right answer. It depends on how long you expect to stay, whether you might need to change borrowing, and how much stable monthly payments matter versus keeping options open.
If you choose a shorter fix, model a higher rate at renewal so you know what headroom you need. If you choose longer certainty, accept that you may not benefit immediately if rates fall.
Rather than guessing where Bank of England or swap rates go, vary the interest rate on your scenario and watch the monthly payment and total interest respond. That tells you what a renewal at a higher or lower rate would mean for your budget.
Change the inputs on the calculator — price, nation, or buyer type — and see how the numbers respond.
Model rate changes on your loanAssumptions and sourcesThe true cost of owning a home (beyond the mortgage)
The monthly mortgage repayment is usually the biggest housing cost, but it is not the only one. Council tax, buildings insurance, maintenance, and sometimes service charges or ground rent all come out of your budget too. Adding them up gives a clearer picture of what living in the property actually costs.
Read guideRent vs buy in the UK: a scenario-based comparison
Renting and buying differ in monthly cost, but the gap widens once you count upfront cash — deposit, stamp duty, and buying fees. Those costs hit harder if you move often, because you pay them again with each purchase. Over a full mortgage term, equity, house prices, and spare cash on the rent path all shape the longer picture.
Read guideHow much stamp duty will I pay in 2025/26?
Stamp duty is transaction tax on residential property. You pay nothing on the slice below the first threshold, then progressively higher rates on amounts above. The total is the sum of tax on each slice — not one flat percentage of the whole price. That slice-by-slice structure catches many first-time buyers by surprise.
Read guidePalta 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.