Reproducible arithmetic
Every calculated value identifies its inputs, formula, and scope. The downloadable CSV contains the same rows shown on the page.
Open methods · updated July 11, 2026
Research you can reproduce
Three compact datasets for better side-hustle decisions. Each project shows exactly what was collected, when it was checked, what was calculated, and what the evidence cannot tell you.
3
published datasets
25
transparent data rows
3
dated evidence captures
Published datasets
DATASET 01
Platform Fees Compared: Net Payout on a $100 Sale
A reproducible comparison of published seller and freelancer fees on Upwork, Fiverr, Rover, Etsy, eBay, and Gumroad.
Method and sources checked 2026-07-11
DATASET 02
Service Side Hustle Wage Benchmarks: BLS OEWS May 2025
National employee wage benchmarks for 12 service occupations mapped to common side hustles, sourced from the BLS public API.
Method and sources checked 2026-07-11
DATASET 03
2026 U.S. Side Hustle Tax & Mileage Benchmarks
A plain-English, calculation-ready dataset of 2026 IRS mileage, self-employment tax, and estimated-tax constants.
Method and sources checked 2026-07-11
What “reproducible” means here
Primary-source first
These projects use current platform help pages, the U.S. Bureau of Labor Statistics, and the Internal Revenue Service—not unattributed summary sites.
No personal records
The datasets contain public fees or aggregate government statistics. No user, seller, client, account, or job-listing record was collected, so anonymization is not applicable.