Capital Gains Tax: enquiries
Phone
Call HMRC for general enquiries about Capital Gains Tax.
HMRC do not take payments on this line.
You will need your Self Assessment Unique Taxpayer Reference.
Before you call
This helpline may ask you some security questions. Make sure your personal details and address are up to date in your personal tax account or you could fail telephone security. If you do not have a personal tax account, you can create one before you check your details.
Telephone:
0300 200 3300
Textphone:
0300 200 3319
Outside UK:
+44 135 535 9022
Opening times:
Our phone line opening hours are:
Monday to Friday: 8am to 6pm
Closed on Saturdays, Sundays and bank holidays.
You can also find out information in your personal tax account.
Post
Payments
We recommend that you pay Capital Gains Tax online. There are different ways to do this.
If you reported:
- UK property disposals or Real Time Transactions (RTT), find out how to pay your Capital Gains Tax
- capital gains in your Self Assessment tax return, find out how to pay your Self Assessment tax bill
These guides explain how to make payments by post, if you cannot pay online.
General enquiries
Write to HMRC for help with general Capital Gains Tax queries.
You do not need to include a street name, city name or PO box when writing to this address.
Couriers should use a different address.
Capital Gains Tax Queries
HM Revenue and Customs
BX9 1AS
United Kingdom