Self-employed tax estimator: never get surprised in April

The number every freelancer wants to know, every day, is “how much do I owe the IRS right now?” Most tools will tell you in April. RevTrackr tells you in real time.

What the estimator actually calculates

• Federal income tax on your projected net earnings, using current brackets and standard or itemized deduction.
• Self-employment tax — 15.3% on net SE earnings, adjusted for the Social Security wage base and the half-deduction.
• State income tax for the state you set in your tax profile — including the 9 states with no income tax.
• QBI deduction — applied automatically if your income is within the threshold.

Updates as you log

Every income or expense entry updates the estimate. Log a $4,000 invoice and watch the next quarter’s tax estimate rise in real time. Log a $1,200 equipment purchase and watch it fall (more deduction = less taxable income). The connection between behavior and tax becomes visible.

Quarterly + annual at the same time

Two windows, both live. The current quarter shows what to send by the next deadline. The full-year projection shows what you’ll owe in total — so you can see whether your set-aside rate is on track or you need to adjust.

Safe-harbor math built in

Enter last year’s total tax bill once. RevTrackr calculates your safe-harbor target — the minimum you need to pay across the year to be immune from underpayment penalty — and shows you whether you’re on track for it. The most common freelancer tax mistake (missing safe harbor by $200 and getting penalized) becomes impossible to make accidentally.

Quarterly payment reminders

A week before each estimated tax deadline (April 15, June 15, September 15, January 15), you get a reminder with the recommended payment amount and a direct link to IRS Direct Pay. No calendar wrangling, no last-minute math.

Multiple businesses, one combined estimate

For people running multiple businesses, the estimator sums net profit across all of them and produces a single combined tax owed — because that’s how the IRS actually charges you. Individual business pages still show their segment of the total.

What this isn’t

RevTrackr’s estimator is not a tax return. It won’t file for you. It gives you a real-time projection accurate enough to plan quarterly payments and avoid surprises, but the final return still goes through tax software (or your CPA) every April. We export the data they need in the format they need it.