How Much Does an Offset Mortgage Save You?
Frequently Asked Questions
An offset mortgage links your savings account to your mortgage. The savings balance is offset against the mortgage, reducing the interest charged. You effectively earn the mortgage interest rate on your savings, tax-free.
Savings interest is taxable (subject to income tax), but the benefit of offsetting is not — it's equivalent to earning a tax-free return equal to your mortgage rate. For 40% taxpayers, a 4.5% mortgage rate is equivalent to earning 7.5% on savings in a taxable account.
Yes. Offset savings remain in your linked savings account and you can withdraw them at any time (subject to any specific product terms). This flexibility is a key advantage over overpaying the mortgage.
Overpaying permanently reduces your mortgage balance. Offsetting keeps your savings accessible while achieving the same interest reduction. If you might need the savings, offsetting is preferable.
Offset mortgages typically have slightly higher interest rates (0.1-0.3%) than equivalent non-offset deals. You need significant savings to offset the rate premium.
They can. You can choose to keep your monthly payment the same (savings reduce interest = more capital repaid, shortening the term) or maintain the same amortisation and reduce monthly payments.
Each lender has different rules. Some allow linked accounts in any name, others require the same name as the mortgage. Check with your specific lender.
Nationwide, Barclays, Woolwich (part of Barclays), Coventry BS, First Direct, and Yorkshire BS all offer offset products. Not all lenders offer them — availability depends on LTV and credit profile.
If after-tax savings rates exceed the mortgage rate (unusual in most market conditions), it may be better to save separately. This happens when mortgage rates are very low and savings rates are high.
Some providers offer commercial offset arrangements, but these are less common. Standard offset products are for personal savings/current accounts only.
The outstanding mortgage balance on your statement remains unchanged — you're not repaying early. The offset just reduces the interest charged. This can be confusing but your overall wealth position is the same.
A current account mortgage (like One Account or Intelligent Finance) combines your current account and mortgage in one account. All income reduces your outstanding balance daily. These products are rare now but very tax-efficient.