Business Tax Reserve Calculator

Self-employed or own a small business? See how much of your profit to set aside for taxes, so tax time brings no surprises.

Private by design. Calculations stay in this page; your inputs aren’t sent or saved.

Start with your numbers

Enter what you expect your business to bring in and spend this year. Choose the percent of profit you want to save for taxes. Many self-employed people start with 25% to 30%, then check it against a real estimate each quarter. We'll show your yearly, quarterly and monthly set-aside.

Enter your yearly business income and expenses to see your tax savings plan.

A planning set-aside, not your actual tax bill or a payment recommendation. Your real tax depends on deductions, credits, other household income, self-employment tax, state and local tax, and when you pay. IRS estimated-tax guidance.

How it works

Understand the estimate

These tools provide educational estimates only and are not personalized investment, tax, legal, or financial advice. Results depend on assumptions and may differ from actual outcomes.

Profit is what's left after business costs, not the total your clients pay you. The calculator applies your chosen percent to that profit. Self-employed people owe income tax plus self-employment tax (Social Security and Medicare), and usually pay during the year with quarterly estimated payments.

Want the full walk-through, including due dates and New York rules? Read How much should a business owner set aside for taxes?