
1099 Quarterly Tax Estimator
Know what to set aside
About
What's New in 1099 Quarterly Tax Estimator
1.1.0
September 15, 2026
The biggest update since launch. PAY THE LEAST YOU LEGALLY CAN • What to set aside from each payment — the real tax it causes, not a flat percentage. Past the Social Security cap the rate drops sharply • How much you can put into a SEP-IRA or solo 401(k), worked out from your own profit, and what each contribution takes off this year's tax. A solo 401(k) usually allows far more than a SEP • Your household: a spouse's salary, withholding, a retirement contribution — each moves what you owe by thousands KNOW WHAT APRIL HOLDS • Safe harbor stops the penalty, not the bill. See yours building up on income you have already been paid — a running total, never a forecast • We now tell you when you are under the $1,000 federal threshold and do not have to pay estimated tax at all SEE THE WORK • Every line of the calculation, traced back to the 2026 IRS tables • Your state's own rules in your own dollars — California asks 30/40/0/30, not four equal payments • Income by client: who paid what, and what share of your year each is STAY ON TOP OF IT • A set-aside tracker: what you have put away against what the quarter needs, and one tap to add to it when you log income • A home screen widget with your number and the countdown • Pay on IRS.gov straight from the app when the quarter is due FOR YOUR ACCOUNTANT • A year-end PDF: income by client, every payment with its confirmation number, estimated vs actual, Schedule C basis • Record the confirmation number when you mark a quarter paid, so you have proof if the IRS ever asks Deadlines now follow the IRS weekend and holiday rule for every year, not just the ones we had listed.
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Client tags, state tax rate, CSV export.
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