Mortgage vs Invest

Calculators Hub

Explore tools to plan and compare

A growing collection of quick, no-login calculators to help you weigh up mortgage overpayments, investing, budgeting, and long-term planning. All run in your browser.

Remortgage calculator with fees

Remortgage Break-Even Calculator: Is Switching Worth the Fees?

Don't Just Look at the Interest Rate

A lower remortgage rate can look appealing, but product fees and switching costs can change the picture. This calculator helps you test whether the monthly saving is enough to justify the upfront cost.

Beginner-friendly estimate with simple assumptions. Use the examples if you want a quick starting point.

Example presets

Try a few rate and fee combinations to see how quickly a remortgage might pay for itself.

Compare your current deal with a remortgage

This calculator helps you see whether a lower rate is likely to outweigh the upfront fees.

Beginner-friendly result

Current monthly payment

£1,177

Estimated payment if you stay where you are.

New monthly payment

£1,115

Estimated payment on the remortgaged deal.

Monthly payment change

£62

Positive means the new deal is cheaper each month.

Break-even point

1 year 5 months

Includes fees, payment savings, and the remaining balance difference.

Benefit by deal end

£642

Positive means the remortgage is ahead by the end of the deal.

Example scenario

Example scenario

This is a common remortgage question: does the lower rate actually outweigh the switch costs?

  • Mortgage balance: £220,000
  • Current rate: 5.4%
  • New rate: 4.8%
  • Fees to switch: £1,199

The calculator shows roughly how long it may take for the monthly savings to catch up with the upfront fee cost.

Learn the basics

How the Remortgage Break-Even Calculator: Is Switching Worth the Fees? Works

The "Break-Even" Concept

The break-even point is the number of months it takes for lower monthly payments to recover the upfront setup costs of switching. If you plan to move or remortgage again before that point, the cheaper-looking deal may actually cost you more.

The headline rate is only part of the story. In 2026 and beyond, many remortgage deals come with product fees, legal costs, or valuation charges, so you need to compare the full cost rather than the interest rate alone.

Early repayment charges matter too. If you are still inside your current deal period, the cost of leaving early can change the numbers enough to wipe out the apparent benefit of switching.

Pros vs cons

Pros

  • Helps you judge whether a lower rate really outweighs mortgage fees.
  • Useful for comparing the monthly saving against the upfront switching cost.
  • Makes break-even timing easier to understand before speaking to a broker or lender.

Cons

  • Real remortgage deals can include more features and conditions than a simple comparison captures.
  • Future rate changes and your own plans to move can change whether a switch is worth it.
  • This is not a lender recommendation or personalised mortgage advice.

Glossary

Break-even point
The point where cumulative monthly savings from a new deal finally cover the fees of switching.
Product fee
An upfront lender charge attached to some mortgage deals, often paid separately or added to the loan.

Frequently asked questions

Should I add the fee to the loan?+

Many lenders allow it, but doing that usually means paying interest on the fee for years. If you can afford to pay it upfront, that is often cheaper overall.

What if I am still in my early repayment period?+

Leaving early may trigger an early repayment charge, often a percentage of your balance. That cost should be included before deciding whether a new deal is really better.

Are fee-free mortgages better?+

Sometimes. Smaller mortgages often benefit more from fee-free deals, while larger mortgages can justify a product fee if the lower rate creates enough monthly savings.

Related calculators

Try the next step after Remortgage Fee Break-even

These tools answer nearby questions, so you can compare the next trade-off without starting from scratch.

Mortgage

Mortgage Payment Calculator

Estimate your monthly mortgage payment and the total cost of borrowing.

Open calculator

Mortgage

Mortgage Overpay vs Invest

See whether putting extra money into your mortgage or investing it could leave you better off.

Open calculator

Mortgage

Lump Sum: Overpay vs Invest

Test whether a lump sum is more useful reducing your mortgage or aiming for investment growth.

Open calculator

These calculators are for educational purposes only and do not constitute financial advice.

They use simplified assumptions and browser-based estimates. Read the full disclaimer before making important decisions.