Free tools · WinWealth
Quarterly Estimated Tax Calculator
Plan a reserve before the next tax deadline.
Annual recommended reserve
$15,000.00
Federal payment deadlines
Standard federal deadlines adjusted for weekends and DC Emancipation Day. Disaster relief, other holidays and state rules may differ; confirm with the IRS.
Why it matters
Self-employed income does not always arrive with tax already withheld. A quarterly reserve can help you plan cash flow rather than treating every deposit as spendable money. This calculator gives you an annual reserve and an equal quarterly amount using a percentage you choose. It does not calculate an actual tax return.
How it works
Enter annual self-employed income, deductible expenses and a reserve rate. The default rate is 30%, matching the app. Expenses are subtracted from income without allowing the estimate to fall below zero. The remaining amount is multiplied by your percentage and divided by four. Select a year to see its payment deadlines.
A worked example
For example, $60,000 income less $10,000 deductible expenses leaves $50,000. A 30% reserve is $15,000 annually, or $3,750 per quarter. Equal quarters are a planning shortcut; actual estimated payments may depend on uneven income, prior-year taxes, credits and other earnings. Federal deadlines shift for weekends and holidays. Check current IRS guidance and consult a tax professional before making payments. Your public inputs stay unsaved.
Frequently asked questions
Is this free to use?
Yes. WinWealth is free for the Sovereign Wealth community, and this public page needs no access code.
Does the calculation predict my actual result?
No. It is a planning estimate using your inputs and stated assumptions. Actual rates, taxes, fees and returns can differ.
Can I save my results?
Open WinWealth through the access screen to keep your own records. Public calculator inputs are not saved.