About HustleNumbers
HustleNumbers is a free, static website of calculators and document generators for freelancers, online sellers, gig workers, and solopreneurs. Every tool runs entirely in your browser — we do not require an account, and calculator inputs are not uploaded to our servers.
What we publish
Pricing and productivity math, personal-finance planners, marketplace and payment-processor
fee estimates, flat-rate shipping and GSA per-diem lookups, plus invoice, quote, and rate-card
generators. Federal tax calculators exist in the codebase but are held out of the public
directory and marked noindex until a licensed CPA or Enrolled Agent reviews them.
How numbers are verified
- Rates, brackets, caps, fees, and prices come only from verified data files — never invented in tool code.
- Federal tax constants are checked against primary IRS Revenue Procedures / Notices and SSA publications, with a verification date stamped on each tax page.
- Marketplace, processor, USPS, and GSA figures are checked against the official fee or rate pages and re-checked before launch and on an annual cadence.
- Shared math lives in a small core library with golden unit tests. If code disagrees with a golden, the code is wrong.
Details of the process — and what we will not publish without an external sign-off — are in our Editorial & Verification Policy.
What we are not
HustleNumbers is not a tax firm, CPA practice, law firm, or financial advisor. Outputs are estimates for general information only. See the Disclaimer and Terms. Tax tools remain pending professional review before public launch.
Contact
Questions about the site, verification, or privacy: Contact or legal@hustlenumbers.com.