The most important HMRC contact numbers
HMRC has over 130 phone lines, but most of them are not relevant for everyday taxpayers.
This is a list of the most important ones.
For questions about your Self Assessment:
- Inside UK: 0300 200 3310
- Outside UK: +44 161 931 9070
You’ll need your National Insurance and UTR numbers.
For questions about Income Tax, Capital Gains Tax, and most tax reliefs
- Inside UK: 0300 200 3300
- Outside UK: +44 135 535 9022
You’ll probably need your National Insurance and UTR numbers.
For questions about CIS registration and rebates
- Inside UK: 0300 200 3210
- Outside UK: +44 161 930 8706
If you’re not sure if you’re employed or self-employed
- Only from inside the UK: 0300 123 2326
For questions about National Insurance
- Inside UK: 0300 200 3500
- Outside UK: + 44 191 203 7010
If you need HMRC online technical support
- Inside UK: 0300 200 3600
- Outside UK: +44 161 930 8445
For other situations
For all other special situations (for example, child benefit, tax credits, non-resident landlord taxes, etc.), check this complete (130!) list of phone numbers on HMRC’s website.
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