What happens if I underpay?

If you don’t pay enough each quarter, the IRS may charge penalties and interest.

Quarterly Tax Calculator

Q: What is a quarterly tax payment?

Quarterly tax payments are estimated taxes paid four times a year by self-employed individuals.

Instantly calculate your quarterly tax payments including federal, state, and self-employment taxes. Perfect for freelancers and 1099 contractors. No signup required.

No signup required IRS due dates Instant results

Start Calculating

Estimate Your Quarterly Tax Payments

Expected Annual 1099 Income

Expected Deductible Expenses

Select Your State

Net Annual Taxable Income: $0

Estimated Self-Employment Tax (15.3%): $0

Estimated Federal Tax: $0

Estimated State Tax: $0

Total Annual Estimated Tax: $0

Quarterly Payment Breakdown

April 15
$0

June 15
$0

Sept 15
$0

Jan 15
$0

Why You Should Pay Quarterly Taxes

Paying quarterly taxes helps you avoid penalties, manage cash flow, and stay compliant with the IRS. This calculator provides instant estimates based on your income, deductions, and state tax rates. Use this tool to plan your payments and reduce surprises at tax time.

Frequently Asked Questions

What is a quarterly tax payment?

Quarterly tax payments are estimated taxes you pay four times a year if you are self-employed. Paying on time avoids IRS penalties and interest.

How much should I pay each quarter?

This calculator divides your total annual estimated tax into four equal payments based on IRS deadlines. Adjust for previous payments to stay accurate.

What deductions can I include?

Deductible expenses include home office, mileage, internet, software, marketing, equipment, and other business-related costs. Accurately including these reduces your taxable income.

What happens if I miss a payment?

Missing quarterly payments can result in penalties and interest. This calculator can help you estimate your late fees and adjust future payments.

Does this replace a CPA?

No. This tool is for estimation purposes only. Always consult a professional CPA for personalized tax advice.