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Quarterly Taxes

Estimated tax payments made four times per year to the IRS and state agencies, covering income tax and self-employment tax on earnings without withholding.

Quarterly Taxes Definition

Quarterly taxes (estimated tax payments) are periodic payments to the IRS covering income tax and self-employment tax on income that doesn't have taxes withheld. Self-employed individuals, freelancers, and business owners typically must pay them.

2026 Due Dates

  • Q1: April 15, 2026
  • Q2: June 15, 2026
  • Q3: September 15, 2026
  • Q4: January 15, 2027
  • Who Must Pay

  • Sole proprietors and single-member LLCs
  • Partners and S-corp shareholders (on distributions)
  • Freelancers and independent contractors
  • Anyone expecting to owe $1,000+ in taxes for the year
  • How to Calculate

    1. Estimate annual income

    2. Subtract deductions

    3. Apply tax rates + 15.3% self-employment tax

    4. Subtract any W-2 withholding

    5. Divide by 4

    Safe harbor: Pay 100% of last year's tax (110% if AGI > $150K) to avoid penalties.

    FAQ

    Q: What happens if I miss a payment?

    A: The IRS charges an underpayment penalty — currently around 8% annually on the shortfall. Pay as soon as possible to minimize it.

    Related Terms

  • Estimated Taxes
  • Self Employment Tax
  • Tax Liability
  • Tax Deduction
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    Related Terms

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