Remortgage calculator

Compare your monthly payment and total interest
Try two repayment examples, then check charges, deal dates and your real options with an adviser.
Using a remortgage calculator

Compare the cost of a change

See the payment and term together

Enter your remaining mortgage balance and two sets of illustrative terms. The comparison shows what happens to the monthly payment and modelled interest if the rates stay unchanged. It cannot tell you whether a new deal is available or whether switching is worthwhile.

Remortgage comparison

Use the amount still owed. Both examples start with this same balance.

An illustrative input, not a live mortgage quote.

Add any known early repayment charge, product fee, legal, valuation and other switching costs. Check actual figures before deciding.

This models a capital-and-interest mortgage with monthly payments and an unchanged rate throughout each remaining term. It excludes future rate changes, overpayments, insurance, taxes and fees added to the loan. Your figures stay in your browser and are not sent to Count Ready.

What a lower payment may hide

A longer term

Extending the term can reduce the monthly payment while increasing the interest paid over time. Look at both figures before deciding.

Costs of switching

An early repayment charge and new deal costs can outweigh an apparent benefit. Ask your current lender for exact charges and compare available options.

The deal end date

The rate on a real mortgage may change before the loan ends. A full-term calculation at one rate is only a way to explore the numbers, not a forecast.

From calculation to a useful comparison

Check your documents

Find your balance, deal end date, current rate, remaining term and any early repayment charge. Enter fees paid upfront here; ask an adviser to model fees added to a new loan.

Compare like with like

Ask about a product transfer with your existing lender as well as a move to a new lender. Compare fees, rate periods, repayment type and the balance left at the same point in time.

Explain income changes

If you are self-employed, have changed business structure or have variable profits, read our self-employed remortgage guide before seeking advice.

Remortgage calculator questions

Does this show how much I will save by remortgaging?

No. It compares two constant-rate examples using the figures you enter. A lower monthly payment can still mean more interest overall, especially with a longer term. Your actual options and costs need a current illustration.

Why does the modelled total interest change when I extend the term?

You would make payments for longer, so interest can accrue over more months. This can happen even when the proposed rate is lower.

Should I add an early repayment charge?

Yes, if one applies to the date you intend to switch. Ask your lender for the exact amount and check whether waiting until the charge ends changes the comparison.

Can I use this for an interest-only or part-and-part mortgage?

This comparison is for capital-and-interest repayments only. Use our repayment calculator to explore interest-only or part-and-part monthly payments, then discuss the capital repayment plan and full costs with an adviser.

Can a self-employed homeowner remortgage?

Potentially, but the options depend on the lender's current criteria and your circumstances. Trading history, income evidence, commitments, property and credit record may matter. An adviser can compare the evidence needed for suitable options; advice cannot guarantee acceptance.

Need a real comparison?

Talk through your remortgage options

Tell Count Ready when your current deal ends, what you still owe and whether your income has changed. We can explain the next steps and the information an adviser may need. Your initial evaluation is free; any applicable advice or application fees are agreed before chargeable work.

Request a remortgage conversation

Your home may be repossessed if you do not keep up repayments on your mortgage.

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