Skip to main content

Miscellaneous payments: enquiries

Call or write to HMRC for help with payments for tax, penalties and enquiry settlements that have a reference beginning with an 'X'.

Phone

Call HMRC for help with payments for miscellaneous tax, penalties and enquiry settlements.

Only use this number for payments not covered in the GOV.UK guides for paying HMRC, and if your payment reference starts with an ‘X’.

You can also find out information in your business tax account.

Telephone: 0300 200 3854

Opening times: Monday to Friday, 8am to 6pm. Closed bank holidays.

Find out about call charges

Post

Write to HMRC for help with payments for tax, penalties and enquiry settlements that have a reference beginning with an ‘X’.

You do not need to include a street name, city name or PO box when writing to this address.

HMRC
DMB 601
BX9 1JH
United Kingdom

Find out the address to use if you’re using a courier instead of Royal Mail.

Guidance

HMRC contacts

Updates to this page

Published 14 May 2025