Tax & Business Calculators
Quick, practical calculators to help you plan: quarterly taxes, entity choice, hiring costs, loans, and retirement limits. Enter your details once to unlock all six, free.
Unlock the Free Calculators
Enter your name and email for instant, free access. We'll also send the occasional planning tip, no spam, and you can unsubscribe anytime.
6 Free Calculators
Pick a calculator to open it on its own page. Each takes under a minute and updates live as you type.
Estimated Quarterly Tax
Estimate what to set aside each quarter for federal income, self-employment, and state tax.
Open calculator →S-Corp vs. LLC Savings
See whether an S-corp election could lower your self-employment tax.
Open calculator →Cost to Hire an Employee
The true, fully-loaded annual cost of a new hire beyond base salary.
Open calculator →Business Loan Calculator
Monthly payment, total interest, and payoff time for any business loan.
Open calculator →Retirement Contribution Limits
Your 2026 maximum across 401(k), Solo 401(k), SEP, SIMPLE, IRA, and HSA.
Open calculator →Self-Employed Deduction Finder
Deductions tailored to your profession across 25 self-employed industries.
Open calculator →Frequently Asked Questions
Are these calculators really free? +
Yes, every calculator is completely free once you enter your name and email. No payment and no obligation.
How accurate are the results? +
They use current federal figures and give solid ballpark estimates, but they can't see your whole picture. Treat them as a starting point, not filed-return numbers.
Do you store the numbers I type in? +
No. The figures you enter stay in your browser, we never see them. Your name and email are used only to send occasional planning tips.
Can you run these for my exact situation? +
Absolutely. Book a free consultation and a CPA will give you precise, personalized numbers.
Which calculator should I start with? +
If you're self-employed, the Quarterly Tax and Deduction Finder are the most-used. For entity questions, try S-Corp vs. LLC.
Are the figures updated each year? +
We refresh the underlying tax figures annually. The retirement limits shown reflect 2026.
These calculators provide rough estimates using current federal figures and general assumptions. They do not account for every credit, deduction, or your full situation, and they are not tax advice. For precise numbers, speak with a CPA.