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- Telephone: 0300 200 3300
- Textphone: 0300 200 3319
- Outside UK: +44 135 535 9022
Phone 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 when calling.
8am to 8pm, Monday to Friday
8am to 4pm Saturday
Closed Sundays and bank holidays
Write to HMRC for help with general Capital Gains Tax queries.
You don’t need to include a street name, city name or PO box when writing to this address.
Capital Gains Tax is paid through Self Assessment, if paying by cheque follow the instructions at pay your Self Assessment tax bill.
You don’t need to include a street name or PO box when writing to this address and should allow 3 working days for your payment to reach HMRC.