For example, if the interest rate on your account increases and you have a large amount of savings, the increase in interest can take you over the Personal Savings Allowance. The interest would remain tax-free in an ISA and wouldn't impact on your Personal Savings Allowance.
If your spouse or civil partner passes away and they had ISA savings, you can inherit an additional ISA allowance. The amount depends on when they passed away and how much savings they had. This is separate to your annual ISA allowance each tax year.
It’s important to remember, however, that you can’t inherit a Personal Savings Allowance.
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