About

Who built this

taxthresholds.com is written and maintained by the taxthresholds.com editorial team, independent of any accounting firm, tax software vendor or government body. The site publishes no author bylines or identifying details beyond this page, by design: the figures here are meant to stand on their sources, not on anyone's personal authority.

Why this site exists

UK and US tax rules for the self-employed change frequently and are scattered across gov.uk, irs.gov, and paid software. This site collects the specific thresholds that trip people up, Making Tax Digital mandation, the OBBBA deductions, quarterly estimated tax safe harbors, and turns each one into a calculator that shows its source and the date it was last checked, rather than a rule of thumb.

How accuracy is checked

Every number on this site is checked directly against gov.uk or irs.gov before it enters a config file, never against a summary, blog post or third-party guide, and cross-checked against a second independent primary source wherever one exists. Every calculator is tested against official worked examples published by HMRC and the IRS before it ships. The full process is set out on the methodology and sources page.

This site does not currently have a named, credentialed professional reviewing content before publication, and makes no claim that it does. What it offers instead is a checkable process: every figure traces to a specific primary-source page, every calculator is tested against an official worked example, and every correction is logged with its date on the changelog. If you are a qualified UK accountant or US Enrolled Agent and would be willing to review content in your area, we would welcome it, see contact.

Get in touch

Found an error, or have a question about how a figure was calculated? Use the contact page.