Don’t use refund firms to claim tax rebates, says Which?
The consumer group says people are paying third party firms hundreds of pounds unnecessarily. …
One of the most common tax claims is for Marriage Allowance, Which? said, which allows one spouse to transfer 10% of their tax-free personal allowance to their partner if their partner earns less than the current personal allowance, and it can be backdated up to a total of £1,220.