Tax Estimation Tools

Take control of your taxes

Smart tools to help you estimate, plan, and optimize your tax strategy — all in one place.

Free to use

Choose your tool

Select the tool that fits your needs — from tracking deadlines to estimating taxes and optimizing your strategy.

Tax Events Calendar

Never miss a deadline with a personalized calendar for filings, payments, and documents tailored to your income sources.

Tax Estimator

Calculate your estimated tax liability before the deadline. Plan ahead and avoid surprises when tax season arrives.

Coming Soon

Safe Harbor Checker

Check if you meet IRS safe harbor requirements to avoid underpayment penalties on your estimated tax payments.

Coming Soon

Withholding Analyzer

Optimize your W-4 withholding to ensure you are not overpaying or underpaying throughout the year.

Coming Soon

Retirement Optimizer

Maximize your retirement contributions while minimizing your tax burden with smart optimization strategies.

Coming Soon
Why use our tools
Better Visibility
See your complete tax picture in one place — deadlines, estimates, and optimizations.
Stay Compliant
Track all filings and payments to avoid penalties and interest.
Save Money
Optimize withholding and contributions to keep more of what you earn.
Privacy‑first
All calculations run locally in your browser. No account required.
Privacy & trust
  • Calculations run locally in your browser — no account required.
  • Export is explicit (Google/ICS) — nothing is synced without you.
  • Not tax advice — use this as a planning companion.