Free tools and resources for independent business owners — no sign-up, no cost, no jargon. Built by Officina Systems. All calculators provide educational estimates only — not tax or financial advice.
About this site

What is IndieOwner?

IndieOwner is a free hub of calculators and resources built for people who run their own business — freelancers, consultants, side-hustlers, and small business owners who wear every hat, including the finance hat.

Most financial tools are built for accountants or enterprise finance teams. IndieOwner is different: everything here is written and designed for people who didn't go to business school but still need to understand their taxes, compare their options, and keep more of what they earn.

IndieOwner is built and maintained by Officina Systems — a digital product studio focused on practical tools for everyday people and independent business owners.

Our Calculator Family

IndieOwner is home to a growing family of free financial calculators. Right now you can find:

🔧 We're actively building more calculators. Check back soon — or visit officinasystems.com to see what's in the pipeline.

A Note on Our Recommendations

IndieOwner recommends third-party tools (payroll, banking, bookkeeping) that we believe are genuinely useful for independent business owners. We don't currently have affiliate relationships with any of the companies we recommend — if that ever changes, we'll label it clearly. Our goal is to give you useful, honest recommendations, not to earn a commission.