Transparent tools for real freelancer tax decisions

Each calculator shows the inputs and limits behind its estimate, then links back to the IRS sources and guide needed to make the result useful.

Estimate self-employment tax from net earnings and see a practical reserve number.

Model annual contributions and projected long-term balances for self-employed savers.

Estimate self-employment tax, cash reserves, state tax, withholding, and a prior-year federal safe-harbor target.

Apply the January–June and July–December rates, then compare a standard estimate with actual expenses.

Screen employer-plan months, after-credit premiums, and the business earned-income limit before Form 7206.