Is a 1 Year Fixed Rate ISA right for me?
What you're trading
Fixing is a straight exchange. You commit money for a year, and in return you get a rate that's certain from the day you fund.
Everything else follows from that. The rate won't fall if rates fall. It won't rise if rates rise. And the money is committed, so reaching it early costs you.
That trade suits some money and not other money. The question isn't whether a fix is good. It's whether the money you have in mind is the right money to fix.
It could suit you if
You've got money you're confident you won't need for a full year
You want to know what you'll earn before you commit, rather than watching a variable rate move
You've got separate savings you can reach at short notice
You're moving money from an ISA you already hold, so you're not using up this year's allowance
You're comfortable that if rates rise, yours won't
It might not suit you if
Your plans for the money could change inside a year
This is the only money you can get to quickly
You're saving for something with a date that keeps moving, like a house purchase
You want interest paid out monthly rather than at the end
If any of these sound like you, an easy access account could be the better fit, and you'd keep the tax-free treatment either way.
1 Year Fixed Rate ISA vs Cash ISA vs Open Access Cash ISA
Three questions worth asking first
How firm is my date? A year is a long time for plans to shift. It's worth thinking about the date you'd actually need the money, not the date you'd like it back.
What can I reach if something happens? Most guidance points towards keeping a buffer you can get to quickly, separate from anything you commit. If fixing would use up everything accessible, it may be worth fixing less.
How much allowance have I got left? Money you add counts towards your £20,000 ISA allowance for the 2026/27 tax year. Money you transfer in from an ISA you already hold doesn't.
What it costs to get out early
You can take money out before its access date, but there's a real cost and it's worth understanding it before you fund rather than after.
You'd take out a whole Vault. There's no option to take out part of one. The penalty charge is 90 days' interest, worked out from your first deposit into that Vault, and we take it off before we pay you.
Taken early enough in the year, that charge can be more than the interest you've earned, so you'd get back less than you put in.
Cancelling is different from taking money out. You've got 14 days from opening the ISA to cancel it altogether, and we'd return everything you'd added.