Contact TaxHelper
Before getting in touch, check whether your question is covered in our guides — most common tax questions are answered there with worked examples. If you can't find what you need, we're happy to help.
Common questions — answered in our guides
My tax code looks wrong — what should I do?
Use the tax code checker
I think I've overpaid tax — can I get a refund?
Read the PAYE refund guide
How does salary sacrifice work?
Read the salary sacrifice guide
How do I read my payslip?
Read the payslip guide
What are the tax rates for 2026/27?
See all 2026/27 rates
I'm self-employed — what tax do I owe?
Use the self-employed calculator
What is the high income child benefit charge?
Read the child benefit guide
How do payments on account work?
Read the payments guide
Get in touch
General enquiries
Questions, feedback, suggestions for new tools or guides. We aim to respond within 2 working days.
Email usReport an error in rates or calculations
If you spot incorrect tax rates, thresholds or calculator outputs, please let us know with as much detail as possible. We investigate and correct within 24 hours.
Report an errorResponse times
Accuracy reports
Within 24 hours
General enquiries
Within 2 working days
Partnership enquiries
Within 5 working days
Other contacts
Not found what you need?
If your question is about UK tax rules rather than about our site specifically, HMRC's own resources are often the fastest way to get an authoritative answer: