
SimTax – 1099 Tax Simulator
Self-employed tax planner
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Free
In-App Purchases
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About
SimTax is the tax planner for freelancers, contractors, gig workers, and small business owners who get paid on a 1099.
Enter your income and expenses and SimTax instantly estimates your federal, state, and self-employment tax, shows how much to set aside from every payment, and tells you what to pay each quarter.
KNOW YOUR TAX IN SECONDS
• Federal income tax, self-employment tax, and state tax for all 50 states and DC
• Local income taxes for cities, counties, and school districts
• Effective rate, marginal rate, and how much of each 1099 dollar to set aside
• Standard deduction, QBI deduction, child tax credit, and more, handled for you
NEVER MISS A QUARTERLY PAYMENT
• A clear schedule of federal and state estimated payments with due dates
• Safe-harbor minimums so you know the penalty-free amount
• Upcoming payments adjust when you've paid too little or too much
TEST A CHANGE BEFORE YOU MAKE IT
• What-if simulator: change your income, expenses, or state and see the difference side by side
• Free users get 3 simulations a day
SIMTAX PRO
Upgrade to unlock the full planning toolkit:
• Unlimited what-if simulations, changing several things at once
• S-corp comparison: see whether electing S-corp status would save you money, with salary, payroll tax, and running costs included
• LLC / Schedule C: itemize expenses, home office, and mileage
• Retirement optimizer: compare Solo 401(k), SEP-IRA, and IRA tax savings
• HSA and self-employed health insurance deductions
• W-2 + 1099 combined: factor in a day job, withholding, and 401(k)
• Estimate by quarter: uneven income? Pay based on what you actually earned (IRS annualized income method)
• Payment tracking: log what you've paid and see what's still due
• Detailed breakdowns: bracket-by-bracket federal and state detail you can share as a PDF
• Saved scenarios: keep and compare estimates
PRIVATE BY DESIGN
No account or sign-up. Your numbers stay on your device.
SUBSCRIPTION DETAILS
SimTax Pro is available as a monthly or yearly auto-renewing subscription. Payment is charged to your Apple ID at confirmation of purchase. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings.
Terms of Use: https://www.elitemobiletechnology.com/simtax/terms
Privacy Policy: https://www.elitemobiletechnology.com/simtax/privacy
SimTax provides estimates for planning purposes only and is not tax, legal, or financial advice. Consult a tax professional for advice about your situation.
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What's New in SimTax
1.1.3
October 26, 2026
Added option to select for spouse's job in w2+1099 combined screen.
2
Subscriptions & In-App Purchases
SimTax Pro Monthly
All Pro planning tools, billed monthly
$4.991 Month






