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About PayoutMath

PayoutMath is built and maintained by one person who actually uses every platform on this site. No SaaS company, no SEO factory.

Last updated 25 April 2026

I’m Jordan — a UK-based football coach who, alongside coaching, runs a portfolio of small online businesses. I built PayoutMath because every existing UK calculator I tried was either out of date, US-centric, or trying to upsell me on accounting software before showing me a number.

What I actually use

I’m not theorising about these platforms. I’m on most of them every week:

  • Etsy — running WealthBloom Prints (wellness planners) and PlayLearnABC (Pre-K and Grade 2 printables, ~18 products live).
  • eBay and Vinted — active reseller. Vinyl, CDs, DVDs, LEGO, gaming hardware, retro PC games, football collectibles. I built and run a Python-based Vinted bot on a DigitalOcean server with Telegram alerts.
  • DistroKid — five active artist accounts publishing AI-generated music: Super Kids Songs (children’s), Eternal Calm (ambient), Euphoric Anthems (90s dance), Lazy Tunes (electronic/gaming), and Sophia Snow (indie pop).
  • Amazon KDP — banned. Which means I know exactly how that ecosystem treats outsiders, which makes my KDP calculator more useful than the ones written by people who’ve never been inside.

This isn’t a CV; it’s why the numbers on this site are right.

What this site is

A growing library of UK earnings calculators. Each one answers a single question: “I earned £X — how much is actually mine after fees and tax?”

Every calculator on the site is:

  • Free, no signup, no email wall, no ads. No cookie banner because I don’t set cookies.
  • Mobile-first. Most people are checking earnings on a phone.
  • Sourced. Every fee and tax band on the site links to the official platform or HMRC page it came from. Each calculator shows when its data was last verified and when it’ll next be reviewed.
  • Honest about its limits. Each calc has a “what this doesn’t cover” section. Tax is messy and I’m not your accountant.

What this site isn’t

I am not an accountant, solicitor, or financial advisor. PayoutMath is for information only. If your numbers are big enough that getting tax wrong would be expensive, talk to a professional — and use this site to come prepared.

How I keep it accurate

A few automated guards:

  • Locale validator runs at every build. If a UK page accidentally references US currency, US tax authorities, US tax forms or US postal codes, the build fails before it deploys.
  • Source URL ping runs monthly. It fetches every fee and tax page I cite, compares the last-modified header to my records, and flags drift.
  • Stale-data alert opens an issue if any source data hasn’t been re-verified in 6 months.

Contact

Spot a number that’s wrong, a link that’s broken, or an HMRC rule I’ve explained badly? Email hello@payoutmath.co.uk. I read everything; corrections get fixed and credited in the changelog.