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Aspect vs Full HMRC Enquiry: What’s the Difference? (2025 Guide)

Not every tax investigation is the same. Understanding which type HMRC has opened can help you plan the right response.

🟩 Aspect Enquiry (Limited Scope)

  • HMRC checks one specific part of your returnExample: VAT claim, rental income, expenses
  • Typical timeline: 3–12 months
  • Often resolved quickly with clear evidence

Good news: Early support usually keeps it simple and inexpensive.

🟥 Full Enquiry (Wide Scope)

  • HMRC checks your entire tax position
  • Can extend to multiple years and linked businesses
  • Typical timeline: 12–36+ months
  • Higher risk of penalties and Tribunal action

These cases require professional tax investigation help UK from the start.

⚠ When HMRC Suspects Fraud — COP9

  • Fraud Investigation Service becomes involved
  • You may be offered the Contractual Disclosure Facility (CDF)
  • Legal privilege with a solicitor becomes essential

This is serious — don’t handle it alone.