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Estimated Tax Calculator

Calculate your quarterly self-employment tax payments for 2026, including SE tax, income tax deductions, and due dates.

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Income

$
$

Deductions

$
$
$

Quarterly Estimated Payment

$3,494

per quarter

Net SE Income

$68,000

SE Tax (15.3%)

$9,608

Income Tax

$4,369

Total Tax Liability

$13,977

Effective Rate

20.6%

Annual Take-Home

$54,023

2026 Quarterly Due Dates

Q1Jan 1 – Mar 31

Due: April 15, 2026

$3,494

Q2Apr 1 – May 31

Due: June 16, 2026

$3,494

Q3Jun 1 – Aug 31

Due: September 15, 2026

$3,494

Q4Sep 1 – Dec 31

Due: January 15, 2027

$3,494

Safe Harbor Rule

To avoid an underpayment penalty, pay either 90% of this year's tax liability or 100% of last year's tax (110% if prior-year AGI exceeded $150,000). Paying at least this amount quarterly keeps you penalty-free.

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