Estimates only, not tax advice.
TaxQuarterly

Quarterly Estimated Tax Planner

For US freelancers & 1099 workers — tax year 2026. Free, no login, nothing leaves your browser.

What it does: enter your self-employment profit and other income, and the planner estimates your 2026 federal income tax plus self-employment tax, how much of each payment to set aside (%), the IRS safe-harbor amount based on last year's return, and the amount and due date of each quarterly Form 1040-ES payment. It is a calculator: it does not file or pay anything with the IRS and does not replace a tax professional.

Start estimating — free
Professional at a desk with a laptop and calculator planning quarterly taxes
Next payment (Q4 2026)Jan 15, 2027

Quarterly due dates

Each Form 1040-ES payment amount and IRS due date.

Set-aside %

How much of each payment to set aside for taxes.

Federal + SE tax

2026 federal income tax plus self-employment tax estimate.

Safe harbor & private

Safe-harbor amount from last year; nothing leaves your browser.

Your 2026 estimate

You
2026 self-employment net profit (after business expenses)
Other 2026 income
Last year (2025 return)

Pricing (USD)

Free — $0

  • Federal income + self-employment tax estimate
  • Set-aside percentage
  • Safe-harbor amount from last year's return
  • Quarterly payment amounts & IRS due dates
  • Runs entirely in your browser, no account

Pro — $6/month or $49/year

  • Everything in Free
  • Saved history of every payment & deposit
  • Calendar reminders (.ics) 7 days and 1 day before each IRS deadline
  • State estimated-tax calculations
  • PDF summary for you or your accountant

Pro is a subscription that renews automatically each month or year until cancelled. Prices in US dollars; sales tax/VAT may be added at checkout. 30-day money-back guarantee (Refund Policy).

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Pro tools Locked

Pro tools unlock after purchase. Previews are shown, actions are disabled until then.

State estimated tax

Calendar reminders

Download the four 2026 Form 1040-ES due dates (Apr 15, Jun 15, Sep 15 2026 and Jan 15 2027) with alerts 7 days and 1 day before. Works with Google Calendar, Apple Calendar and Outlook.

Payment & deposit history

Saved only in this browser (localStorage). Export a backup to move it to another device.

PDF summary

Save a clean summary of your estimate, state tax and payment history for you or your accountant (choose "Save as PDF" in the print dialog).

Restore purchase

Find the transaction ID in your Paddle receipt email. Until server-side verification launches, restore is checked on this device only.

Figures used

2026 brackets, standard deduction & QBI thresholds: IRS Rev. Proc. 2025-32. Social Security wage base $184,500: SSA. Safe harbor & due dates: IRS Form 1040-ES. Federal figures above; Pro state estimates use each state's latest published schedule (year shown):