Quarterly Estimated Tax
Prepayment of income and self-employment taxes made four times per year by self-employed individuals and investors.
FAQs
What happens if you miss a quarterly estimated tax payment?
Missing or underpaying a quarterly estimated tax payment triggers an underpayment penalty under IRS Form 2210. The penalty is calculated at the IRS underpayment rate (federal short-term rate plus 3 percentage points) applied to the amount underpaid for each day of the underpayment period. The penalty applies quarter by quarter—underpaying in April but catching up in June still incurs a penalty for the Q1 shortfall. The penalty is relatively small but accumulates across quarters, and it is not a substitute for owing the full tax at year-end.
Who must make quarterly estimated tax payments?
You generally must make quarterly estimated tax payments if you expect to owe at least $1,000 in federal tax after withholding and refundable credits. This applies to self-employed individuals, freelancers and contractors, partners in partnerships, S corporation owners who receive distributions, investors with capital gains dividends or interest income not offset by withholding, rental property owners, and retirees receiving pension or IRA income without adequate withholding elections. Employees who have large wage income but also significant outside income may need supplemental estimated payments.
Can you adjust quarterly estimated tax payments mid-year?
Yes—estimated tax payments can be adjusted at any quarterly due date to reflect updated income projections. If business is slower than expected, you can reduce upcoming payments. If you have a windfall (bonus, capital gain, large contract), you can increase subsequent payments. The annualized income installment method (Form 2210 Schedule AI) allows uneven quarterly payments that match actual income timing, preventing over-payment in early quarters when income is front-loaded or under-payment when income spikes late in the year.
Related Terms
Self-Employment Tax
Social Security and Medicare taxes paid by self-employed individuals on net self-employment income.
Alternative Minimum Tax
Parallel tax calculation ensuring high-income taxpayers pay a minimum federal tax regardless of deductions.
Qualified Business Income Deduction
20% deduction for pass-through business income under IRC Section 199A for eligible self-employed taxpayers.
Passive Activity Rules
IRS rules limiting deduction of losses from activities in which the taxpayer does not materially participate.