Mortgage Balance Calculator

Use this calculator to see exactly where you stand with your mortgage. Enter your current balance, interest rate and remaining term, then pick any date in the future. We'll show you your outstanding balance at that point, how much interest you'll have paid, and how much capital you'll have cleared. It takes less than a minute and needs nothing more than the details on your last mortgage statement.

Mortgage Balance Calculator
Your mortgage
Use the details from your most recent mortgage statement or offer letter.
Most mortgages are capital & repayment — your balance reduces each month.
With an interest only mortgage your outstanding balance stays the same throughout the term — you are only paying the interest each month, not reducing what you owe. The calculator will show the interest paid up to your chosen date, but your balance will remain at the figure you entered above.
The date shown on your statement.
years months
Remaining term from the balance date above.
Approx. monthly payment
Mortgage end date
This looks like a promotional rate. Most fixed and tracker deals have a set end date — when they expire your rate typically jumps to your lender's standard variable rate. Our free Rate Alert Service will contact you ahead of time so you can switch before it happens.
This rate looks like it may be your lender's standard variable rate, which is typically one of the most expensive options available. There may be a better deal out there. Contact us for a free review of your options — it could save you a significant amount each month.
Project to a date
Choose any date up to the end of your mortgage term to see a snapshot of your balance at that point.
Want to review your options? We search the whole market across 90+ lenders — speak to us or check live rates in under 2 minutes.

Month-by-month breakdown

Your balance after each monthly payment on the 1st of the month. The highlighted row is the last payment before your chosen date.
Month Date Opening balance Cumulative interest Cumulative capital Closing balance
For illustration only. These figures are estimates based on a fixed interest rate. Interest is calculated daily (annual rate ÷ 365) on the reducing balance, the way most UK lenders charge it, with payments assumed on the 1st of each month. Your actual balance will vary depending on your payment date and any rate changes. This tool does not constitute financial advice. Please speak to your Aspect Mortgages adviser if you have any questions about your mortgage.

Frequently Asked Questions

How accurate is this calculator?

The figures are estimates based on a fixed interest rate applied monthly to a reducing balance. Your actual balance will vary slightly depending on the exact date your lender applies each payment. That said, for most mortgages it will be a very close guide. If you want to know your precise balance, check your most recent mortgage statement or contact your lender directly.

My fixed rate is ending soon, what should I do?

You should start looking at your options around six months before your deal ends. When a fixed or tracker rate expires, most lenders move you onto their standard variable rate automatically, which is almost always significantly higher. We can search the whole market to find you a better deal, or review a rate switch with your existing lender. Find out more about remortgaging or speak to us today.

Do I have to switch lender, or can I stay with my existing one?

You don't have to move lender. Staying with your existing lender on a new deal — known as a product transfer or rate switch — can be quicker and cheaper than a full remortgage, with no legal fees or valuation in most cases. It isn't always the best option though, which is why it's worth comparing both routes. Read more about rate switches.

What is the lender's standard variable rate?

The SVR is your lender's default interest rate; the one your mortgage automatically reverts to when a fixed or tracker deal ends. SVRs are set by the lender and tend to be significantly higher than available fixed or tracker deals, sometimes by 2–3%. If your rate is above 6%, there's a good chance you're already on it. Check live rates to see what's available to you.

Can I set up an alert before my rate expires?

Yes. Our free Rate Alert Service lets you register your rate end date and we'll contact you at the right time, before your deal expires, so you have time to review your options without rushing.

Aspect Mortgages team outside their office at 16 St Thomas's Road, Chorley

Why Choose Aspect Mortgages?

  • Independent and FCA regulated. We work for you, not for the lender

  • Whole of market access across 90+ lenders and leading insurers

  • Family run since 2004 with over 100 years of combined team experience

  • Local office, national reach. Serving clients across Lancashire, Greater Manchester and nationwide.

  • Real people, no jargon. Plain English, at your pace

  • Rated 5 stars across 470+ Google reviews. One of the most reviewed brokers in the North West

  • Fixed, transparent fee. One flat fee, no surprises.

Not ready to enquire yet?

If you want to keep an eye on rates before committing, our rate alert service will notify you when mortgage rates change so you can pick your moment.

Deal ending soon? Speak to an adviser today

Call us on 01257 812345, or drop us a message and we will call you back

There will be a fee for mortgage advice. The precise amount will depend upon your circumstances but we estimate that it will be £495 for a residential/buy to let mortgage or £1495 for an equity release/retirement mortgage.

Aspect Mortgages Limited is authorised and regulated by the Financial Conduct Authority and is entered on the Financial Services Register (https://register.fca.org.uk/s/) under FCA reference 305352. The FCA do not regulate Business Buy to Let Mortgages.

As independent advisers we have access to the whole market, except for deals that you can only obtain by going direct to a lender. Registered in England and Wales No: 051013801. 16 St Thomas' Road, Chorley, PR7 1HR.

A Lifetime Mortgage may reduce the value of your estate and could affect your entitlement to benefits. To understand the features and risks please ask us for a personalised illustration.

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

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