1099TaxSuite2026 IRS
IRS Form 1040-ES Estimator

Quarterly Estimated Tax Calculator (2026)

Avoid IRS underpayment penalties (Form 2210). Estimate your 4 quarterly estimated tax payment vouchers for federal and state self-employment obligations.

Tax Projections

$

Gross revenue minus business expenses.

$

From Line 24 of your prior year Form 1040.

Total Annual Tax Liability29.1% Combined Rate
$21,850

SE Tax ($10597) + Federal ($4653) + State ($6600)

Recommended Quarterly Voucher$5,462
Pay 4x equal installments
Q1 VoucherJan 1 – Mar 31
IRS Due Date:April 15, 2026
Payment:$5,462
Q2 VoucherApr 1 – May 31
IRS Due Date:June 15, 2026
Payment:$5,462
Q3 VoucherJun 1 – Aug 31
IRS Due Date:September 15, 2026
Payment:$5,462
Q4 VoucherSep 1 – Dec 31
IRS Due Date:January 15, 2027
Payment:$5,462
IRS Safe Harbor Penalty Protection

If you pay at least 100% of your prior year's total tax ($14000) in 4 equal payments of $3500, the IRS cannot assess underpayment penalties even if your actual 2026 earnings are much higher.

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