Rated Fantastic
Claim unused marriage tax
If you’re married or in a civil partnership and one of you earns below the personal allowance threshold, you could be owed over £1,200 in unused tax relief.
- Check your eligibility in 2 minutes
- Reclaim up to 4 years of tax history
The basics
What is marriage allowance?
Marriage Allowance is a tax relief for married couples or civil partners. If one of you earns less than the personal allowance (£12,570) and the other is a basic-rate taxpayer, you can transfer some of your unused tax-free allowance reducing your joint tax bill.
Never claimed it? A claim can be backdated up to 4 years, so past years when you qualified still count.
£1,242
The most you could get back from HMRC in unused Marriage Allowance
£12,570
The personal allowance one partner must earn less than
Why couples miss out
Three reasons the money goes unclaimed
Didn’t know they could claim
Many couples don’t realise they qualify. If your partner earned below the personal allowance in any tax year, you’re likely owed money.
Changes in income or work
If one of you stopped working, went part-time or earned less due to maternity, sick leave or redundancy, you may now be eligible to claim.
Not claimed in previous years
Even if you now earn too much, you can still claim for past years when you qualified — and receive a backdated lump sum from HMRC.
Three steps
How it works
-
01
You check your eligibility
One partner must earn less than the personal allowance (£12,570), while the other is a basic-rate taxpayer.
-
02
We calculate your rebate
We check which tax years you’re eligible for and submit the claim on your behalf, backdated up to 4 years.
-
03
We transfer your tax rebate
Once your rebate is approved, we transfer it straight to your account. No forms, no follow-ups, just money back, fast.
Why Taxbax
Why people choose us for their tax rebates
Expert tax support
From checking your eligibility to submitting your claim, we handle the tax rebate process simply, securely and stress-free.
No hidden fees
You only pay if we succeed. There are no hidden fees, we only charge once your tax rebate has been paid into your account.
2-minute process
Speed matters. We work quickly to file your claim, so your rebate is processed and paid as soon as possible, usually in a few weeks.
FAQs
Frequently asked questions
What is Marriage Allowance and how does it work?
Marriage Allowance lets a lower-earning partner transfer part of their personal tax allowance to their spouse or civil partner, reducing their tax bill.
Who qualifies for Marriage Allowance?
Married couples and civil partners where one partner earns less than the personal allowance (£12,570) and the other is a basic-rate taxpayer.
Can I backdate Marriage Allowance?
Yes, up to 4 years. Even if you now earn too much, you can still claim for past years when you qualified — and receive a backdated lump sum from HMRC.
What if I stopped working during the tax year?
If one of you stopped working, went part-time or earned less due to maternity, sick leave or redundancy, you may now be eligible to claim.
Do both partners need to apply?
The transfer comes from the lower-earning partner’s allowance and goes to their spouse or civil partner, so we’ll need details for both of you. The check itself takes 2 minutes.
Ready to get your tax rebate?
We’ve already helped thousands reclaim the money that is rightfully theirs
Check eligibility – It’s free