About UK Tax Toolbox
UK Tax Toolbox provides simple browser-based calculators and guidance for modern UK income streams, including reselling, creator income, side hustles, SaaS and digital products.
Why this site exists
Many UK tax resources are built around traditional employment or general self-employment. UK Tax Toolbox focuses on the income types many people now earn from: Vinted, eBay, YouTube, TikTok, OnlyFans, Patreon, SaaS tools, templates, downloads and side hustles.
Founder experience
UK Tax Toolbox was founded by Conor Dwyer, an entrepreneur with practical experience building and running businesses. That experience shapes the site's focus on plain-English explanations, record keeping, cash-flow planning and real-world income streams rather than abstract tax theory.
This experience helps us identify common questions and confusing points, but it does not make the site a substitute for HMRC, an accountant or personalised professional advice.
Who it is for
- Online resellers and marketplace sellers
- YouTubers, TikTok creators, streamers and influencers
- Side hustlers earning alongside PAYE income
- SaaS founders, indie hackers and digital product sellers
- People trying to understand possible UK tax before Self Assessment
How our tools work
Our calculators provide estimates based on the figures you enter, including income, expenses, PAYE income where relevant, trading allowance choices and selected tax year assumptions. They are built to support understanding, not to replace professional advice.
Important disclaimer
UK Tax Toolbox is an informational website. We are not HMRC, we are not accountants, and we do not provide personal tax, legal, accounting or financial advice. Always check final figures with HMRC or a qualified accountant before making tax decisions or submitting a return.
Start with a calculator
Choose the tool closest to how you earn income.