IndieOwner is a free toolkit of 30+ calculators, planners, and checklists built for freelancers, independent authors, and small business owners. No signups, no premium tier, no paywalls — every tool answers one specific question with real, current numbers.
We started building these tools because the math behind running a solo business — what to charge, how much to set aside for taxes, whether you can afford to hire, whether a book is priced right — is the same math every independent operator eventually has to work out themselves, usually through trial and error or an expensive piece of software built for a company ten times their size. Each tool on IndieOwner focuses on one decision and gives a straight answer, built against current-year figures where it matters (IRS brackets, SSA caps, SE tax rates), not a generic calculator template.
IndieOwner is built and maintained by Officina Systems, the team behind TomeOS and several other creator-focused products. We run a small, independent company ourselves, which is exactly the audience these tools are built for. Every calculator runs entirely client-side in your browser — nothing you type is sent to or stored on a server. See our Privacy Policy for the specifics.
These tools are simplified estimates meant to help you make a fast, informed decision — they are not tax, legal, or financial advice. For anything with real financial or legal stakes, confirm with a CPA, attorney, or qualified professional for your specific situation.
Questions, bug reports, or a tool you wish existed? Reach us at [email protected].