Estimated Tax Payments

The plain answer

Estimated tax payments are payments you make during the year when taxes are not being withheld from enough of your income. They are common for self-employed people, but they can also matter if you earn investment income, rental income, bonuses, or income from a second job with too little withholding.

The goal is to pay tax as income arrives instead of waiting until you file your return. Owing money at filing time does not always mean you did something wrong, but paying too little during the year can lead to an underpayment penalty.

How it actually works

Start by estimating your income, deductions, credits, and total federal tax for the year. Then subtract the federal income tax you expect to have withheld from paychecks or other payments. If the remaining amount is meaningful, you may need estimated tax payments or higher withholding.

Estimated payments generally cover both income tax and, for self-employed workers, self-employment tax. Income and deductions can change during the year, so revisit the estimate after a large contract, a new income source, a major gain, or another material change.

The IRS has safe-harbor rules that can help taxpayers avoid an underpayment penalty. Those rules include details and exceptions that can change. Check current IRS guidance or work with a qualified tax professional rather than relying on an old percentage or threshold.

Estimated payments are usually made at several points during the year. Confirm the current due dates and payment instructions with the IRS. If you also receive wages, increasing paycheck withholding may be another way to cover the expected tax. See What Tax Withholding Means for the basics.

What this means for you

Keep part of each payment you receive in a separate savings account so the tax money is available when a payment is due. Base the amount on a current projection, not on a guess from your gross revenue alone.

Review your projection during the year and keep records of payments made. If income is uneven, current IRS guidance may allow a method that better reflects when the income was earned, but the paperwork is more involved.

Taxes should shape planning without taking over the decision. Do not spend a dollar to save thirty cents in taxes. A deductible business expense still costs money, and an investment should still fit your goals and risk tolerance.

Common mistakes

• Waiting until filing season to set aside money for tax.
• Estimating tax from revenue without accounting for deductible expenses or self-employment tax.
• Forgetting income that does not appear on a regular paycheck.
• Making the same payment all year even after income changes substantially.
• Using an old safe-harbor rule, due date, or payment instruction without checking current IRS guidance.
• Assuming a refund last year means no estimated payments are needed this year.

Related pages

• What Tax Withholding Means
• How Taxes Actually Work
• The Order of Operations for Your Money