Call the Tax Credit Helpline straight away to correct a mistake on your claim form.
Tax Credit Helpline
Telephone: 0345 300 3900
Textphone: 0345 300 3909
Monday to Friday, 8am to 8pm
Saturday, 8am to 4pm
Find out about call charges
What happens next
If your claim hasn’t been looked at the Tax Credit Office will confirm how much you’ll get (usually in an ‘award notice’).
If you’ve already got your award notice the correction could mean you’re entitled to:
- more tax credits - these are usually paid to you
- less tax credits - you must pay back any money you weren’t entitled to
The Tax Credit Office will usually write to you confirming what will happen to your tax credits.