Call HMRC if you’re finding it hard to repay - you may get more time. You’ll need your tax credit reference number.
0345 302 1429
8am to 8pm, Monday to Friday
8am to 4pm Saturday
9am to 5pm Sunday
Closed bank holidays, Easter Sunday, Christmas Day, Boxing Day and New Year’s Day.
If you have already been contacted by HMRC or a debt collection agency acting on their behalf, contact them using the details they’ve given you.
If you can’t make a payment using any other method you can send a cheque with your payslip to HMRC.
You don’t need to include a street name, city name or PO box when writing to this address.