Contact HMRC
BX9 1AX: which HMRC address is this?
Last reviewed 11 October 2026 · How Tax Letters checks its facts
GOV.UK prints BX9 1AX in the HMRC addresses below. Each one gives what GOV.UK says to send there, the address as GOV.UK prints it, and the other routes GOV.UK lists for that contact.
Corporation Tax Services
Corporation Tax · Corporation Tax: general enquiries
Write to HMRC for help with general Corporation Tax enquiries. If you have a Unique Taxpayer Reference (UTR) include it in your letter and on the first page of any documents you send.
If you’re replying to a letter you’ve received about your Corporation Tax, you should use the address on that letter.
Corporation Tax ServicesHM Revenue and CustomsBX9 1AXUnited KingdomInstead of post, on GOV.UK
Corporation Tax: general enquiries
Call HMRC for help with general Corporation Tax enquiries.
Source: GOV.UK: Corporation Tax: general enquiries (checked 11 Oct 2026)
Corporation Tax Services
Certificates of residence and letters of confirmation · Applying for a certificate of residence by post
For companies and public bodies, the postal address GOV.UK gives is Corporation Tax Services, HM Revenue and Customs, BX9 1AX, United Kingdom.
If you cannot apply online, GOV.UK says you can apply by post by sending all the information the application needs to the address for your organisation type.
Instead of post, on GOV.UK
To apply online you use either your sign in details, which you can create if you do not have them, or your email address, to which you are sent a confirmation code you can use to sign in. GOV.UK says you can save your progress and come back later.
Source: GOV.UK: Apply for a certificate of residence or letter of confirmation (checked 10 Oct 2026)
Couriers
Use this address if you’re a courier for all post items being delivered to a:
- postcode beginning with BX5 or BX9
- PO box
- HMRC site that does not accept post
Other HMRC postcodes
This page cannot tell you whether a letter, call or message came from HMRC. The scam check covers that. Information, not advice: it says what GOV.UK says each address is for, and does not choose one for you. All HMRC contact lines, by letter type.
- BX5 5BDHMRC
- BX9 1AANIC and EO Complaints
- BX9 1ABPAYE and Self Assessment Complaints
- BX9 1AJWACSI Certificate of Residence
- BX9 1ANPT Operations North East England, Subject Access Requests
- BX9 1ASPay As You Earn and Self Assessment
- BX9 1BXPT Operations North East England
- BX9 1ERHM Revenue and Customs
- BX9 1HTWealthy/Mid-size Business Compliance
- BX9 1JTDebt Management Complaints
- BX9 1WRBT VAT
- BX9 2ABCustomer Compliance Complaints
- BX9 2BSBereavement Services
- NE88 1AAHM Revenue and Customs – Child Benefit Office, HM Revenue and Customs – Guardian’s Allowance Unit
- NE88 1ZDHM Revenue and Customs – Child Benefit Office
- NE98 1ZZHMRC Digital Services, Large Business Scotland & Northern Ireland, HM Revenue and Customs
Sources
- GOV.UK: Corporation Tax: general enquiries (checked 11 Oct 2026)
- GOV.UK: Apply for a certificate of residence or letter of confirmation (checked 10 Oct 2026)
- GOV.UK: Courier deliveries to HMRC: PO box and BX postcodes (checked 11 Oct 2026)