Start with annual expectations
Use expected full-year net self-employment income and optional W-2 wages rather than one quarter of income.
Back to Home
2026 Form 1040-ES Planning
2026 Quarterly Estimated Tax Calculator
Short answer: Estimate remaining 2026 federal quarterly tax payments using expected net self-employment income, W-2 wages, withholding, and payments already made.
IRS-sourced tables
No account required
Tax Year
2026 planning estimates for income earned in 2026
2026 IRS inflation-adjusted tables; returns generally filed in 2027. Last reviewed June 16, 2026.
$
$
$
$
This is a simplified federal planning estimate. It does not test every Form 1040-ES safe-harbor rule, annualized-income method, credit, deduction, penalty, or special deadline.
Quarterly Estimated Tax Planner
Enter annual planning amounts and payments already made to estimate the federal balance remaining across the installments you select.
Disclaimer: This calculator provides estimates based on selected-year federal brackets, standard deductions, Social Security wage bases, and long-term capital-gain thresholds. It does not account for state taxes, AMT, NIIT, QBI, most phase-outs, refundable-credit limits, local taxes, or every deduction and credit. Results are for informational purposes only. For personalized tax advice, consult our tax professionals.
IRS-source-backed estimate
Tax data used by this calculator
The estimator uses selected-year federal brackets, standard deduction amounts, long-term capital-gain thresholds, Child Tax Credit amounts, and Social Security wage bases from official IRS and SSA sources. For a deeper walkthrough, read the 2025 and 2026 federal tax calculator guide.
IRS federal income tax rates and bracketsIRS 2026 inflation adjustmentsIRS Rev. Proc. 2025-32 OBBBA adjusted itemsIRS Child Tax CreditSSA Social Security contribution and benefit baseIRS Topic 409: Capital Gains and LossesIRS self-employment tax guidanceIRS Form 1040-ES and instructionsIRS Publication 505: withholding and estimated taxIRS Topic 751: Social Security and Medicare withholding rates
Quarterly payment planning
Estimate the federal balance still left to plan for
This focused tool combines a simplified annual federal income and self-employment tax estimate with withholding and payments already made, then spreads the remaining estimate across the number of installments you select.
Subtract payments already covered
Enter expected withholding and estimated payments already made to estimate the remaining annual amount.
Choose remaining installments
The tool divides the remaining simplified estimate across the installment count you select; it does not test every safe-harbor method.
Illustrative quarterly-payment example
If the simplified annual federal estimate is $20,000 and entered withholding and payments total $12,000, the remaining estimate is $8,000. Selecting two remaining installments shows an illustrative $4,000 per installment. Actual required payments can differ under Form 1040-ES, safe-harbor, annualized-income, penalty, or disaster-relief rules.
Related federal tax calculators
Calculator limitations
What this federal estimate does not cover
The calculator is built for planning and search transparency. It is intentionally conservative about exclusions so taxpayers know when to request a reviewed estimate.
State and local income taxes are not included.
AMT, NIIT, QBI, EITC, refundable-credit limits, education credits, and most phaseouts are not calculated.
Age 65 or older, blind taxpayer, retirement-plan deductions, HSA deductions, student loan interest, and detailed itemized-deduction limits are not yet modeled.
Self-employment estimates use the selected-year Social Security wage base and Medicare rates, but final Schedule SE results can differ.
Capital gains estimates exclude NIIT, collectibles, Section 1202 stock, unrecaptured Section 1250 gains, wash sales, and carryover-loss details.
The result is not a filed return, IRS software, or a guarantee of refund or tax due.
2026 Quarterly Estimated Tax Calculator FAQ
Who may need to make quarterly estimated tax payments?
People with income not fully covered by withholding, including some freelancers, contractors, business owners, investors, and landlords, may need estimated payments. Eligibility depends on the complete federal tax situation.
What are the standard 2026 estimated tax due dates?
For calendar-year individual planning, the standard dates are April 15, June 15, and September 15, 2026, followed by January 15, 2027. Individual circumstances and IRS relief can change an applicable deadline.
Does this calculator apply the IRS safe-harbor rules?
No. It provides a simplified planning amount and does not fully test prior-year liability, higher-income safe harbor, annualized income, penalties, or every Form 1040-ES rule.
Does federal withholding reduce the estimate?
Yes. Enter expected federal withholding and estimated payments already made so the tool can subtract them from the simplified annual estimate.
Does this include state estimated taxes?
No. State and local estimated taxes are outside this calculator's scope.
Related resources
More help after the tax estimate
Use these pages for tax preparation, bookkeeping, IRS notices, and deeper planning context.
2025 and 2026 federal tax calculator guideHow to calculate 2026 quarterly estimated tax payments2026 quarterly estimated tax calculator2026 self-employment tax calculator1099 tax calculator for freelancers2026 capital gains tax calculatorIndividual tax preparation servicesSmall business tax and accounting servicesTexas tax and accounting servicesKaty bookkeeping servicesIRS notice help in Katy TXTax planning strategiesSmall business accounting tips
How We Calculate
Our engine uses selected-year IRS-published federal tax tables, standard deductions, and capital-gain thresholds. It aggregates income, subtracts deductions, and applies marginal brackets to estimate the taxable base.
When to Update
Recalculate your estimate whenever you experience a major life event: marriage, a new child, a significant raise, or the purchase of a new home to ensure withholding accuracy.
Pro Tip
Plan ahead by reviewing tax-advantaged contributions, withholding, and estimated payments before key filing-year deadlines.
Need a reviewed estimate?
Calculators are helpful for planning, but complete tax documents can change the final number. Book a review with an IntegraFin tax professional.
Ready for a reviewed estimate?
Send your details through the contact form for team follow-up and next-step information.
Book a tax review