How to Complain About HMRC
HMRC handles UK tax collection and benefit payments. Common complaints include incorrect tax calculations, penalties, PAYE errors, and poor complaint handling.
UK Guide · Updated 2026 · Based on current ombudsman procedures
Common HMRC complaints
- Incorrect tax code or PAYE calculation
- Unfair or incorrect penalties
- Self-assessment errors or delays
- Child benefit or tax credit mistakes
- Long wait times and difficulty contacting HMRC
- Refund delays
How to contact HMRC
Step-by-step escalation guide
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See the HMRC escalation guide for the full process.
Time limits and deadlines
Allow HMRC reasonable time to respond, then escalate to the Adjudicator's Office after internal review
Which ombudsman handles HMRC complaints?
If HMRC fails to resolve your complaint within the required timeframe, you can escalate to the Adjudicator's Office — which is free, independent, and has the power to award compensation.
Tips for complaining to HMRC
- 💡HMRC has a formal complaints process — always start with their internal complaints team
- 💡After HMRC's internal review, you can escalate to the Adjudicator's Office (free)
- 💡Keep copies of all tax returns, correspondence, and payment records
- 💡You can also complain to your MP who can refer your case to the Parliamentary Ombudsman
- 💡Interest and penalties may be waived if HMRC caused unreasonable delays
📊 See how HMRC handles complaints
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