Choose the address for your purpose
HMRC Corporation Tax postal address
Use this address to ask HMRC a general Corporation Tax question about your company. If HMRC has already written to you about the matter, its contact page says to reply to the address on that letter.
Official source checked . GOV.UK: Corporation Tax general enquiries
When to use another route
This is not a substitute for filing a Company Tax Return or making a payment. Use the address on an existing Corporation Tax letter when replying, and contact your Customer Compliance Manager if the large-business instructions apply.
Postal address
Corporation Tax Services HM Revenue and Customs BX9 1AX United KingdomUse Corporation Tax Services and BX9 1AX exactly as published. No street, town or PO box is needed for this Royal Mail destination; do not substitute a courier address.
The address will be filled in for you to review and edit. Writing and downloading a PDF are free; printing and post are paid at checkout.
Before you write
- Include your company's Unique Taxpayer Reference (UTR), if you have one, in the letter and on the first page of accompanying documents, as HMRC requests.
- State the company name, relevant accounting period and the question you need answered. Keep a copy of what you send.
- If you are waiting for a repayment, check the official guidance before writing again. HMRC warns that duplicate claims can delay its review.
Check the official instructions again before sending, especially when replying to a letter that names a different team or address.
Prepare, review and keep a copy
Write your letter online or upload a PDF. The address stays editable and you review the document, postal service and full price before paying. Keep your own copy of the final letter and any references.
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PostOwl is an independent printing and posting service and is not affiliated with this organisation. This entry helps you find an address; it does not determine whether your letter satisfies a particular process or deadline.