Free Tools
Tax Calculator
Use your annual revenue, expected profit margin, and effective tax rate to figure out a practical monthly and quarterly reserve.
Annual revenue target
$253.2K
This tool assumes a simple founder workflow: estimate revenue, apply a profit margin, then reserve tax from the profit instead of the top line.
Profit margin
35%
Use the margin you expect after software, ops, contractors, and other direct costs.
Effective tax rate
24%
This is a blended estimate, not a jurisdiction-specific filing calculation.
Taxable profit
$88,620
35% of $253,200 is treated as taxable profit in this estimate.
Estimated tax
$21,269
24% effective tax on the estimated profit.
Monthly reserve
$1,772
A clean monthly reserve target to move into a separate tax account.
Reserve breakdown
Keep these figures close when you are planning draws, payroll, or runway.
Monthly reserve
$1,772
Set aside this amount every month.
Quarterly reserve
$5,317
Useful if you pay estimated taxes quarterly.
Annual tax bill
$21,269
Total estimated tax based on your margin and rate.