taxes

Quarterly Taxes

Estimated tax payments due four times per year for self-employed individuals.

Quarterly taxes are estimated payments due on April 15, June 15, September 15, and January 15 of the following year. They cover income tax and self-employment tax not withheld by an employer. The IRS expects you to "pay as you go," and underpayment penalties apply if you owe more than $1,000 at filing time without meeting safe harbor thresholds.

Example

A consultant earning roughly $40,000 per quarter sets aside 30% ($12,000) each quarter and submits payments via IRS Form 1040-ES.

Why It Matters for Your Business

Missing quarterly payments results in penalties that accumulate daily, so staying on schedule prevents a surprise tax bill and avoids unnecessary fees.

Practical Tips

  • Mark quarterly due dates in your calendar and set aside funds from every client payment.
  • Use IRS Form 1040-ES worksheet or tax software to calculate each payment amount.

Related Terms

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