A self employment tax calculator and quarterly estimated tax planner for 2026. Tell QuarterWise 1099 Tax Planner your 1099 or freelance income, business expenses, and filing status, and it works through the IRS 2026 Form 1040-ES worksheets: self-employment tax on 92.35% of net profit (12.4% Social Security up to the 184,500 dollar wage base, 2.9% Medicare, and the 0.9% Additional Medicare Tax), the deductible half of SE tax, the 20% qualified business income (QBI) deduction, and federal income tax with the 2026 brackets and standard deduction.
It answers questions like "I made 60k on 1099, how much do I owe", "how much should I pay in quarterly taxes", and "how much to set aside for taxes as a freelancer". It handles a W-2 job plus a side gig (wages use up the Social Security wage base and paycheck withholding is subtracted), married couples where one or both spouses are self-employed, business losses, the child tax credit, and the new 2026 senior and charitable deductions.
For quarterly estimated taxes it compares 90% of your 2026 tax with 100% of your 2025 tax (110% if your 2025 AGI was over 150,000 dollars), applies the 1,000 dollar rule, and gives the amount for each due date: Apr 15, Jun 15, Sep 15, 2026 and Jan 15, 2027. Missed a payment? Add what you have paid and it shows what to pay now and at each remaining date.
The result appears as a card in the chat: a waterfall from income through deductions to tax, and four quarterly payment cards with dates, amounts, and status. Download a calendar file (.ics) with reminders before each due date and a printable PDF worksheet laid out like the IRS worksheet, with a payment record.
Good for freelancers, independent contractors, gig workers (DoorDash, Uber, Instacart, Etsy), consultants, and anyone with 1099-NEC or 1099-K income.
Limitations: estimates for planning only, not tax advice. Federal tax for tax year 2026 only; state income tax is not calculated (it tells you if your state has none). Capital gains rates, AMT, net investment income tax, the earned income credit, penalty amounts, and the annualized installment method are not included. Above the 2026 QBI threshold it applies the phase-in using W-2 wages your business paid, with property basis treated as zero. It does not file returns or make payments.