Plans and pricing
Real quarterly estimates. Free.
Plus gives you a PDF report every quarter and the IRS filing package at year end.
Every paid plan carries a 30-day money-back guarantee. Change or cancel anytime.
Doing your own taxes?
The Free plan gives you the complete calculator, federal and state. Freelancers, contractors, traders, and landlords use it to find their quarterly payment in minutes.
Income changes during the year? Plus lets you revise anytime, keeps every quarter on record, and builds the year-end Form 2210 package that proves your payments, for $99/year.
Managing clients?
Pro and Firm are built for accountants, bookkeepers, and firms. Run every client's quarterly estimates from one client management dashboard. The same engine, at client scale.
Pro handles up to 10 clients. Firm removes the cap.
Frequently asked questions
Is the Free plan really free?
Yes. The Free plan is the complete calculator. You get the federal safe harbor and annualized methods, covering wages, self-employment, business, rental, and investment income, plus your state's safe harbor payment schedule, with quarterly deadline reminders. It's limited to one calculation per quarter and requires a free account. Unlimited calculations, the PDF report, saved history, and the year-end Form 2210 package are part of Plus.
What does Plus add?
For $99/year, Plus turns the calculator into a year-round tool. Revise your calculation anytime your income changes, keep every quarter in saved history, download the quarterly PDF tax report for your records, and at filing season get the Form 2210 / Schedule AI package that shows the IRS your payments matched your income.
Which states are covered?
All 50 states plus Washington, D.C., flat-tax and graduated-bracket states alike, on every plan including Free. If your state has no income tax, the calculator tells you that too. You owe your state nothing and your federal number is the whole picture.
Do I still need my accountant?
This does one job precisely (quarterly estimated payments using IRS Publication 505 methods) and it works alongside an accountant, not instead of one. Many users run their own numbers here and have their accountant double-check the result.
Is my financial data private?
Your data is never sold and never shared with third parties. We use it to calculate your taxes and for nothing else.
What's the difference between Pro and Firm?
Pro ($69/quarter or $196/year) is built for accountants and small practices managing up to 10 clients. Firm ($169/quarter or $499/year) is the same thing without the client cap. Annual billing saves up to 29% versus paying quarterly.
Do paid plans calculate taxes more accurately?
No. The calculation engine is identical on every plan. Paid plans add year-round tools (unlimited calculations, records, and year-end IRS forms on Plus) and scale (client management for tax professionals). If you only need a number each quarter, the Free plan is all you need.
Can I try it before paying?
Yes. Free is the full engine, no credit card. It IS the trial. The paid plans run the same calculations with year-round tools and client scale. And every paid plan carries a 30-day money-back guarantee.
Can I change plans later?
Anytime. Upgrades take effect immediately, and Stripe prorates so you only pay the difference for the rest of the period. Downgrades apply at the end of your current billing period, and you keep your current plan's features until then.
How do I cancel?
Anytime, from your billing page. No emails, no phone calls. Your plan stays active through the period you've paid for, and you won't be charged again. Within the first 30 days, contact us for a full refund.
Start free. Upgrade when you need more.
Your quarterly number costs nothing, federal and state. Add year-round management or your clients when you're ready.