Contact & Feedback
Have a calculation question, discovered an HMRC statutory edge case, or have suggestions for new tools?
TaxTrapCalc.co.uk is a zero-backend, client-side tax computation suite built for UK taxpayers, payroll professionals, and company directors. We actively welcome feedback, calculation audits, and feature requests.
General Inquiries & Feedback:
Bug reports, calculation feedback, suggestions for new UK financial tools, and partnerships.
Privacy & Compliance:
Data protection queries, cookie consent information, or statutory disclaimers.
Support Independent Development
TaxTrapCalc is 100% free with no paywalls or gated results. If this tool helped your tax planning, you can support ongoing maintenance and new tools.
Reporting an HMRC Edge Case or Discrepancy:
To help us verify and cross-reference our calculation models against statutory HMRC legislation, please provide:
- The calculator tool used and tax year (e.g., 2024/25 or 2025/26)
- Scenario inputs (gross income, pension type, student loan plan, tax region)
- Expected mathematical outcome and relevant HMRC manual or statutory reference
Privacy Note: Please do NOT send National Insurance numbers, P60 forms, payroll payslips, or sensitive personal data. All calculations execute directly in your local browser memory.