🇺🇸United States

Form 1040-ES Estimated Tax

Quarterly Tax Payments for Freelancers

Medium~15 minTaxQuarterlyEstimatedFreelance

/ What is this form?

If you expect to owe $1,000+ in tax that isn't covered by withholding, you must make quarterly estimated tax payments. This applies to freelancers, landlords, investors, and anyone with significant income not subject to payroll withholding. Due dates: April 15, June 15, September 15, January 15.

/ Who needs this form?

Self-employed individuals and freelancers
People with significant investment or rental income
Anyone whose withholding doesn't cover their tax liability by $1,000+

/ What you need before you start

Estimated annual income from all sources

Estimated deductions and credits

Prior year tax return (for safe harbor calculation)

/ Step-by-step guide

1Determine If You Need to Pay

You must make estimated payments if you expect to owe $1,000+ in tax after withholding and credits. Common situations: freelancers, landlords, investors, side gig income.

2Estimate Your Annual Income

Project your total income for the year including all sources. Subtract estimated deductions to get your estimated AGI, then calculate estimated tax.

3Calculate Safe Harbor Amount

To avoid penalties regardless of actual income, pay at least 100% of last year's tax liability (110% if AGI > $150,000) spread across the four quarterly payments.

4Make Quarterly Payments

Pay by the four due dates: April 15, June 15, September 15, and January 15. Pay online via IRS Direct Pay (free), EFTPS, or mail a check with the 1040-ES voucher.

5Adjust as Income Changes

Recalculate after each quarter if your income significantly changes. Underpaying triggers a penalty — overpaying results in a refund when you file your annual return.

/ Key fields explained

Field	What to enter	Common mistake
Estimated tax payment	Your estimated total tax minus expected withholding and credits, divided into four quarterly payments	Underestimating income — use safe harbor (pay 100% of prior year tax) to guarantee no penalty

/ Common mistakes to avoid

Not making quarterly payments at all (underpayment penalty accrues from each due date)

Underestimating income — pay at least 100% of prior year's tax to avoid penalties

Missing due dates — the penalty is calculated per day from the deadline

/ Frequently asked questions

What's the safe harbor rule?

Pay at least 100% of last year's tax liability (110% if AGI > $150,000) through withholding plus estimated payments to avoid any underpayment penalty, regardless of current year income.

How do I pay?

IRS Direct Pay at irs.gov/payments is free and immediate. EFTPS is also available. You can also mail a check with the 1040-ES voucher.