Calculate your estimated quarterly tax payments for federal and Pennsylvania state taxes. Designed for self-employed individuals, freelancers, and independent contractors.
PA State Tax: Flat 3.1%
Quarterly Payment Amount
$6,164
Per quarter (4 remaining)
Jan 1 - Mar 31
Due: April 15, 2026
$6,164
Apr 1 - May 31
Due: June 15, 2026
$6,164
Jun 1 - Aug 31
Due: September 15, 2026
$6,164
Sep 1 - Dec 31
Due: January 15, 2027
$6,164
Don't miss your quarterly payments!
The IRS may charge penalties and interest if you underpay or pay late. Consider setting up automatic payments or calendar reminders.
Pennsylvania has a flat 3.07% income tax rate
One of the lowest flat tax rates in the country
Many localities add local income tax (up to 3.9% in Philadelphia)
Pennsylvania has a flat 3.07% state income tax rate. However, most localities also impose a local income tax. Philadelphia residents pay up to 3.9% in local tax.
This calculator uses current federal and Pennsylvania tax rates and schedules:
Federal quarterly tax requirements and Form 1040-ES
Official Pennsylvania tax authority
Social Security and Medicare tax information
This calculator provides estimates based on 2026 tax rates. Your actual tax liability may vary based on deductions, credits, and other factors. Consult a tax professional for personalized advice.