Get advice about or report a tax avoidance scheme

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Online forms

If HMRC needs to contact you about anything confidential they’ll reply by phone or post.

Phone

  • Telephone: 03000 588 993
  • Outside UK: +44 3000 588 993

Call HMRC to ask a question about tax avoidance or report a scheme that you think has been set up to avoid tax.

Find out about call charges

Opening times:

9am to 5pm, Monday to Friday

To report an individual or business that is deliberately not paying tax contact the Tax evasion helpline.

Post

Write to HMRC to ask a question about tax avoidance or report a scheme that you think has been set up to avoid tax.

You don’t need to include a street name or PO box.

HM Revenue and Customs - Counter-Avoidance
DOTAS Taskforce S0483
Newcastle
NE98 1ZZ
United Kingdom

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Don’t include personal or financial information like your National Insurance number or credit card details.