About Side Business Calculator

Side Business Calculator was built for a simple reason: gross revenue is a lie.

Most freelancers and side hustlers see a big number in their Uber or Etsy dashboard and think they're winning. But once you subtract self-employment tax, platform fees, mileage, and benefits replacement, that $40/hr often turns into $18/hr.

We build tools that give you the honest truth. Whether you're a gig worker in the US trying to estimate your Schedule SE or a sole proprietor in Canada navigating the $30,000 GST/HST threshold, our mission is to provide the math you need to make better business decisions.

This site is founder-led and research-first. We strictly follow official IRS and CRA guidelines to ensure our estimates are as accurate as possible for the 2026 tax year.