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Savings Intelligence: am I overpaying on my mortgage?

Am I overpaying on my mortgage? Theo answers that by comparing your mortgage with live deals from 100+ UK lenders, matched to your loan to value band, property type and ownership, and shows what you could save, with the fees and any early repayment charge counted. For every property, every day.

3D glass house with a key, for am I overpaying on my mortgage

Quick answer

You may be overpaying on your mortgage if your rate is higher than today’s best rate for your loan to value band, property type and ownership. Savings Intelligence checks that every day: what you pay now, what today’s best rate would cost, the fees and any early repayment charge, and how many months the saving takes to cover them.

A calculator gives you an answer for today. Theo gives you the answer every day.

Average 2 year fix 
Average 5 year fix 
Bank Rate 
Lenders100+ daily
Deals10,000+
PropertiesEvery one

Updated today

Lenders compared
100+
Every day
Live deals
10,000+
Matched to your band
Properties
Every one
Checked separately
No ERC within
6 months
Of your fix ending
Lenders compared
100+
Every day
Live deals
10,000+
Matched to your band
Properties
Every one
Checked separately
Cost to start
£0
Free to download

Am I overpaying on my mortgage? What Theo shows

  • NowYour rate and monthly payment.
  • TodayThe best rate for your band, and its payment.
  • CostsFees and any early repayment charge.
  • PaybackMonths for the saving to cover them.
Am I overpaying on my mortgage: Theo Savings Intelligence showing your rate against today’s best, fees and the months to cover them
Example screen from the Theo app, October 2026.

Am I overpaying? Checked daily

Savings Intelligence prices your mortgage against today’s rates every night, for every property, and shows the plain monthly difference with the costs of switching listed separately.

The six month rule

A mortgage offer lasts about six months. If your fix ends within that, you can apply now and complete the day it ends, paying no early repayment charge. Theo allows for this automatically.

No ERCInside 6 months

Want to be told?

Set up rate alerts.

Am I overpaying on my mortgage? An example

Illustrative figures, not a quote.
Amount
You pay now£1,412 a month
Today’s best rate for your band£1,321 a month
Monthly difference£91 lower
Lender fee£999
Early repayment chargeNot payable, fix ends in 5 months
Fees covered after11 months

Is now a good time to check?

A lower rate is only a saving if the fees are recovered in time. Here is the market you would be switching into.

Typical standard variable rate DailyWhat you pay if your fix ends and you do nothing
2 year fix, last 4 weeks DailyPercentage points, across lenders
5 year fix, last 4 weeks DailyPercentage points, across lenders
Rate pressure DailyFrom Theo’s 10 rate signals
Lenders cutting today DailyRates reduced this morning
Lenders raising today DailyRates increased this morning

Updated  . Standard variable rates · Early repayment charges

Am I overpaying on my mortgage?

You are likely overpaying if your rate is higher than the best available for your loan to value band, property type and ownership. Most people find out months after a better deal appeared, because nobody checks for them. Savings Intelligence checks every property you own, every day, so you know where you stand.

How Savings Intelligence works

To answer am I overpaying on my mortgage, Theo reads your balance, rate, remaining term, fix end date, property type, ownership and band. Every night it matches your profile against 10,000+ live deals from 100+ UK lenders and works out the monthly payment at today’s best rate for your band. It shows the plain monthly difference, then lists the lender fee and any early repayment charge separately, with how many months the saving takes to cover them. If the costs outlast the deal paying for them, Theo says so plainly.

The early repayment charge, counted properly

An early repayment charge is what your lender charges for leaving a fixed deal early, and it can wipe out years of savings. Theo includes it only when you would actually pay it. If your fix ends within about six months, you can usually apply now and complete the day it ends, so Theo marks the charge as not payable. See early repayment charges explained.

Compare the whole market for your band

If the answer to am I overpaying on my mortgage is yes, the next question is who with. With Premium, you can step through every live deal for your band, sorted by lowest rate, lowest fee or lowest total cost over the deal, with the lender, rate, monthly payment and fee for each. Sorting by total cost often reorders the list: a headline low rate with a big fee can drop well down. Premium also shows the lender behind today’s best rate, how much it would take to reach your next loan to value band, and, with two or more properties, the detail of any equity move.

Deal Watch, for a home you are buying

Add a property you plan to buy, and Theo works out your loan to value band from your deposit and the price, then tracks the best rates for that band with the lender fees shown, so the figure you see reflects today’s market. See buying a home, step by step. Savings Intelligence is information, not advice: speak to an FCA-authorised adviser before acting.

Common questions

Am I overpaying on my mortgage?
You are likely overpaying if your rate is higher than the best available for your loan to value band, property type and ownership. Savings Intelligence checks this for every property you own, every day.
What is Theo’s Savings Intelligence feature?
A feature of the Theo app that compares each property’s mortgage with current rates from 100+ UK lenders, for remortgages and for homes you plan to buy, and updates automatically.
How does Theo calculate my mortgage savings?
Theo compares your payment now with the payment at today’s best rate for your band, then lists the lender fee and any early repayment charge separately and works out how many months the saving takes to cover them.
What is “net saving after ERC” and why does it matter?
The early repayment charge is a fee for leaving a fixed deal early. A lower rate is only worth switching to if the saving outweighs the charge and fees. Theo counts the charge only when you would pay it: within about six months of your fix ending, you usually would not.
Does Theo compare my mortgage against the whole market?
Theo compares against 10,000+ live deals from 100+ UK lenders, filtered to your band, mortgage type, property type and ownership, so you only see deals you could realistically be offered.
Can Theo monitor more than one property?
Yes. Every property is checked separately, including residential, buy to let, HMO and limited company, each with its own figures.
What is Deal Watch for people buying a property?
For a home you plan to buy, Theo works out your band from your deposit and the price and tracks the best rates in that band, with lender fees shown.
Is Savings Intelligence financial advice?
No. It provides estimated figures and market data for information. It does not confirm eligibility or suitability. Speak to a qualified, FCA-authorised adviser before deciding.
Do I need to pay to use Savings Intelligence?
Checking every property, your payment, today’s best rate for your band, the monthly difference and the costs of switching are free. Premium adds the lender behind the rate, the full market comparison and the band and equity detail. Theo is free to download, with free core features. Theo Premium is £9.99 a month, with a 7 day free trial.
How accurate is Theo’s savings calculation?
The figures are estimates from current market rates, your details and a standard early repayment charge model. Confirm rates, fees and charges with the lender or an adviser before deciding.

Keep exploring

Written by Jason Foord, CeMAP-qualified mortgage adviser and founder of Theo. Updated 16 October 2026. Live figures on this page update automatically.

Theo App Ltd is not authorised by the Financial Conduct Authority and does not give mortgage advice. This page is information only and is not a recommendation. Figures are estimates, not quotes. Theo is free to download, with free core features. Theo Premium is £9.99 a month, with a 7 day free trial. Not advice. Speak to an FCA-authorised mortgage adviser about your own circumstances.

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