What is an offset mortgage?

Caz Blake-Symes • November 25, 2019

Let Us Help You Weigh Up the Benefits

An offset mortgage links your mortgage to your savings account. The value of your savings is deducted from the amount you pay interest on, which lowers your monthly payments.

With an offset mortgage, you will not earn interest on your savings. However, because people usually pay more interest on a mortgage than they earn from a savings account, an offset mortgage could still save you money.

How do offset mortgages work?

An offset mortgage doesn’t affect the value of your savings. Instead, they’re placed in an interest-free savings account and their value is ‘offset’ against your mortgage.

This means that if you have £20,000 in savings, and a mortgage worth £150,000, you’ll only pay interest on the remaining £130,000.

With an interest rate of 5%, this reduces your payments from £7,500 to £6,500 – a saving of £1,000.

However, because you’re no longer making interest on your savings, you’ll need to factor this in to the total amount saved. So if you were earning 1.5% interest on that £20,000, or £300 a year, the total amount saved on your mortgage will come to £700.

Can I still withdraw money from an offset account?

You can still withdraw money from your savings account with an offset mortgage. However, if you take money out of your savings, it will no longer offset your mortgage, and your monthly payments will go up.

You may also need to keep a minimum balance in your savings account. It’s a good idea to make sure you know if there’s a minimum balance requirement before picking an offset mortgage deal.

Is it quicker to pay off my mortgage with an offset account?

With an offset mortgage, you can also choose to pay the ordinary interest rate every month – but because some of the money you owe is offset by your savings, you’ll be effectively overpaying on your mortgage. This means that the amount you owe will go down faster, and your mortgage will be paid off more quickly.

Other types of mortgage might also allow you to overpay, but with an offset mortgage the money remains in your savings account, so you can access it whenever you need to.

Offset mortgage rates

As with standard mortgages, you can get both fixed and standard variable interest-rate offset mortgages.

Fixed-rate deals usually offer a better deal than standard variable-rate – SVR – mortgages and can last for two, three, five or 10 years before moving you onto the lender’s SVR, but a few can be fixed for the whole mortgage term.

Other offset mortgage types include:

Tracker mortgage: When the interest rate is variable and follows the Bank of England base rate

Discount mortgage: When you’re given a set discount on the lender’s SVR

These deals often last for two years before you move onto the SVR, but you can also choose deals that last the whole term. SVR mortgages are also available for the whole term and can be more flexible than other mortgage types.

Some deals will allow you to offset your current account as well as your savings account. You may also be able to link your cash ISA, if you have one. The more savings accounts you can link to your mortgage, the harder your cash will be working to reduce your debt.

Your savings and mortgage will have to be with the same provider to benefit from an offset mortgage – you won’t be able to link a savings or current account to your mortgage if it’s with a different bank or building society.

Should I put down a bigger deposit instead of offsetting?

If you have savings, you could consider using them to put down a bigger deposit instead of keeping them in an offset account, so your mortgage is smaller. With a bigger deposit, you may also be offered lower interest rates by lenders.

However, an offset mortgage means you will always have access to your money if you need it. Offsetting might be a better option if you think you might need some spare cash in the future.

Can I get a buy-to-let offset mortgage?

Some lenders will offer an offset mortgage on a buy-to-let property. Since 2017, changes in the law have meant that landlords can no longer deduct interest payments from their tax bills, so offset mortgages may be a good option if you have a buy-to-let mortgage and want to reduce your costs.

Can I get an offset remortgage?

If you already have a mortgage and want to switch to an offset mortgage deal, it’s possible to remortgage. Keep in mind, though, that you may have to pay early repayment fees if you leave your current mortgage early.

What are the advantages of offset mortgages?

The main advantages of having an offset mortgage include:


  • You can choose to reduce your monthly payments
  • An offset mortgage deducts more interest than you’d usually gain on your savings, which means your money does more for you every month
  • Offset mortgages have tax benefits. Because your savings are working to pay off your mortgage instead of gaining interest, they will no longer be taxed – even as they save you money every month
  • You could also overpay each month, which means you pay it off sooner
  • In most cases you can still access your savings account, making your finances more flexible
  • Some offset mortgages allow you to use your current account as well as your savings account
  • It can be a good way to help a family member get on the property ladder, as some lenders will allow you to offset your savings against someone else’s mortgage

What are the disadvantages of offset mortgages?


  • Some of the possible disadvantages of an offset mortgage include:
  • Offset mortgages might be more expensive than other options depending on the value of your savings
  • You won’t earn interest on your savings and/or current account
  • Offsetting can give you a lower loan-to-value – LTV – than typical mortgages, which means you’ll probably need to put down a larger cash deposit
  • There is no rule for how much you should have in savings to make an offset the best option – it will depend on the mortgage and savings interest rates available at the time. This means it’s always best to shop around for the best deal.

For further details and to book your FREE CONSULTATION with one of our expert Mortgage Advisers please contact us

Bristol Mortgages Online www.bristolmortgagesonline.comTel 0117 325 1511

Bath Mortgages Online www.bathmortgagesonline.comTel 01225 584 888

Exeter Mortgages Online www.exetermortgagesonline.comTel 01392 690 888

Email info@swmortgages.com

#bristolmortgagebroker #mortgageadvice #independentbroker #lifeinsurance #mortgagebroker #offsetmortgage #bathmortgagebroker #mortgageprotection, #lowinterestmortgage #incomeprotection #expertmortgageadvice #freeconsultation #remortgage #criticalillnesscover #greatbuytoletdeals #fivestarservice #highlyrecommended #topmortgagebroker #movinghouse #remortgage




By Caz Blake-Symes December 8, 2025
With the Budget uncertainty now lifted, buyers and sellers can return to making decisions about their next move. Removing the threat of a new annual property tax from 210,000 homes for sale will help revive market activity in higher-value areas. However, the lack of any stamp duty reform means homebuyers will continue
By Caz Blake-Symes November 28, 2025
Please click here to see our November newsletter This month’s edition is packed full of interesting articles, including What does the Budget mean for you? Interest-Only Mortgages For Later Life. Need Short-Term Property Finance? What is the Renters’ Rights Act, and what does it mean for tenants? What You Should Know About Second Charge Mortgages Time to Remortgage? Stunning 5-star Google Reviews! Let Us Help You If You Have Adverse Credit How to Contact Us You can also read more articles on our Blog. We hope you enjoy this Newsletter. If you have any queries, please call Phil Clark on 0117 325 1511 or email info@swmortgages.com
By Caz Blake-Symes November 27, 2025
Rachel Reeves has set out details of her second Budget since becoming Chancellor. Some measures from the yearly tax and spending plan had already been announced in the days leading up to the statement.
By Caz Blake-Symes November 19, 2025
We are thrilled to be able to offer this fantastic product through the Family Building Society. This interest-only mortgage gives those of retirement age and beyond the opportunity to free up equity from their home, without the huge costs often faced when considering Equity Release or a Lifetime Mortgage.
By Caz Blake-Symes November 12, 2025
Thinking about buying a new property before selling your current one? Or maybe you need quick funds to complete a renovation or secure an investment opportunity? You’re not alone. With today’s fast-moving property market, many homeowners and investors are turning to bridging loans to bridge the gap.
By Caz Blake-Symes November 1, 2025
The changes laid out in the Renters’ Rights Bill were the biggest shakeup of rental legislation in decades. In October 2025, the Bill gained Royal Assent, which means the bill becomes the ‘Renters’ Rights Act’, and will now become law.
By Caz Blake-Symes October 13, 2025
Pre-Budget speculation over possible tax changes is impacting market activity for homes over £500,000. The rest of the mainstream housing market is carrying on, largely unaffected.
By Caz Blake-Symes October 6, 2025
Thinking about borrowing more money, but worried about losing your current mortgage deal? You’re not alone. With interest rates shifting in 2025, many homeowners are
By Caz Blake-Symes September 30, 2025
Check Out Our September 2025 Newsletter!
Rental market conditions are starting to normalise as supply and demand rebalance. The
By Caz Blake-Symes September 24, 2025
Rental market conditions are starting to normalise as supply and demand rebalance. The affordability