Offset mortgages won't save you money

lovemoney.com
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One bank reckons you could save almost £40,000 with its offset mortgages. But the numbers just don't add up.

First Direct claimed recently that higher-rate taxpayers could save £37,000 with an offset mortgage. The online bank, which is part of the HSBC Group, currently offers some of the cheapest offset mortgages. So how accurate is its claim?