Estimated Tax for 2026 — Who Must Pay Estimated Tax: Withholding and Estimated Tax (2026 IRS Guide)
This guide covers “Estimated Tax for 2026 — Who Must Pay Estimated Tax” within withholding and estimated tax. The following material presents the IRS treatment of this topic, including the qualifications, exceptions, and examples in the source section. Read the rules alongside the facts of your own situation before deciding what to report, deduct, or document.
Adapted from Publication 505 (2026), Tax Withholding and Estimated Tax, published by the Internal Revenue Service. This guide retains the source edition’s years, amounts, deadlines, and examples. It is guidance for that edition, not a statement that the same figures apply to every tax year.
Estimated Tax for 2026 — Who Must Pay Estimated Tax
If you owed additional tax for 2025, you may have to pay estimated tax for 2026.
You can use the following general rule as a guide during the year to see if you will have enough withholding or should increase your withholding or make estimated tax payments.
General Rule
In most cases, you must pay estimated tax for 2026 if both of the following apply.
You expect to owe at least $1,000 in tax for 2026 after subtracting your withholding and tax credits.
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You expect your withholding and tax credits to be less than the smaller of:
90% of the tax to be shown on your 2026 tax return, or
100% of the tax shown on your 2025 tax return. Your 2025 tax return must cover all 12 months.
.If the result from using the general rule above suggests that you won’t have enough withholding, complete the 2026 Estimated Tax Worksheet for a more accurate calculation..
Figure 2-A takes you through the general rule. You may find this helpful in determining if you must pay estimated tax.
.If all your income will be subject to income tax withholding, you probably don’t need to pay estimated tax..
Married Taxpayers
If you qualify to make joint estimated tax payments, apply the rules discussed here to your joint estimated income.
You and your spouse can make joint estimated tax payments even if you are not living together.
However, you and your spouse can’t make joint estimated tax payments if:
You are legally separated under a decree of divorce or separate maintenance,
You and your spouse have different tax years, or
Either spouse is a nonresident alien (unless that spouse elected to be treated as a resident alien for tax purposes). See Choosing Resident Alien Status in Pub. 519.
Note:
Individuals who are in registered domestic partnerships, civil unions, or other similar formal relationships that are not marriages under state law can’t make joint estimated tax payments. These individuals can take credit only for the estimated tax payments that he or she made.
If you and your spouse can’t make joint estimated tax payments, apply these rules to your separate estimated income.
Making joint or separate estimated tax payments won’t affect your choice of filing a joint tax return or separate returns for 2026.
2025 separate returns and 2026 joint return.
If you plan to file a joint return with your spouse for 2026, but you filed separate returns for 2025, your 2025 tax is the total of the tax shown on your separate returns. You filed a separate return if you filed as Single, Head of household, or Married filing separately.
2025 joint return and 2026 separate returns.
If you plan to file a separate return for 2026 but you filed a joint return for 2025, your 2025 tax is your share of the tax on the joint return. You file a separate return if you file as Single, Head of household, or Married filing separately.
To figure your share of the tax on a joint return, first figure the tax both you and your spouse would have paid had you filed separate returns for 2025 using the same filing status for 2026. Then, multiply the tax on the joint return by the following fraction.
| The tax you would have paid had you filed a separate return | ||
| The total tax you and your spouse would have paid had you filed separate returns |
Special Rules
There are special rules for those who have income from farming and fishing, for certain household employers, and for certain higher income taxpayers.
Farming and Fishing
If at least two-thirds of your gross income for 2025 or 2026 is from farming or fishing, substitute 662/3% for 90% in (2a) under General Rule, earlier.
Gross income.
Your gross income is all income you receive in the form of money, goods, property, and services that isn’t exempt from tax. To determine whether two-thirds of your gross income for 2025 was from farming or fishing, use as your gross income the total of the income (not loss) amounts.
Joint returns.
On a joint return, you must add your spouse’s gross income to your gross income to determine if at least two-thirds of your total gross income is from farming or fishing.
Gross income from farming.
This is income from cultivating the soil or raising agricultural commodities. It includes the following amounts.
Income from operating a stock, dairy, poultry, bee, fruit, or truck farm.
Income from a plantation, ranch, nursery, range, orchard, or oyster bed.
Crop shares for the use of your land.
Gains from sales of draft, breeding, dairy, or sporting livestock.
For 2025, gross income from farming is the total of the following amounts.
Schedule F (Form 1040), Profit or Loss From Farming, line 9.
Form 4835, Farm Rental Income and Expenses, line 7.
Your share of the gross farming income from a partnership, S corporation, estate or trust from Schedule K-1 (Form 1065), Schedule K-1 (Form 1120-S), or Schedule K-1 (Form 1041).
Your gains from sales of draft, breeding, dairy, or sporting livestock shown on Form 4797, Sales of Business Property.
Wages you receive as a farm employee and wages you receive from a farm corporation are not gross income from farming.
Gross income from fishing.
This is income from catching, taking, harvesting, cultivating, or farming any kind of fish, shellfish (for example, clams and mussels), crustaceans (for example, lobsters, crabs, and shrimp), sponges, seaweeds, or other aquatic forms of animal and vegetable life.
Gross income from fishing includes the following amounts.
Schedule C (Form 1040), Profit or Loss From Business, line 7.
Income for services as an officer or crew member of a vessel while the vessel is engaged in fishing.
Your share of the gross fishing income from a partnership, S corporation, estate or trust from Schedule K-1 (Form 1065), Schedule K-1 (Form 1120S), or Schedule K-1 (Form 1041).
Certain taxable interest and punitive damage awards received in connection with the Exxon Valdez litigation.
Income for services normally performed in connection with fishing.
Shore service as an officer or crew member of a vessel engaged in fishing; and
Services that are necessary for the immediate preservation of the catch, such as cleaning, icing, and packing the catch.
Household Employers
When estimating the tax on your 2026 tax return, include your household employment taxes if either of the following applies.
You will have federal income tax withheld from wages, pensions, annuities, gambling winnings, or other income.
You would be required to make estimated tax payments to avoid a penalty even if you didn’t include household employment taxes when figuring your estimated tax.
Higher Income Taxpayers
If your AGI for 2025 was more than $150,000 ($75,000 if your filing status for 2026 is Married filing a separate return), substitute 110% for 100% in (2b) under General Rule, earlier.
For 2025, AGI is the amount shown on Form 1040 or 1040-SR, line 11b.
Note:
If at least two-thirds of your gross income for 2025 or 2026 is from farming or fishing, this rule doesn’t apply.
Aliens
Resident and nonresident aliens may also have to pay estimated tax. Resident aliens should follow the rules in this publication, unless noted otherwise. Nonresident aliens should get Form 1040-ES (NR), U.S. Estimated Tax for Nonresident Alien Individuals.
You are an alien if you are not a citizen or national of the United States. You are a resident alien if you either have a green card or meet the substantial presence test.
For more information about withholding, the substantial presence test, and Form 1040-ES (NR), see Pub. 519.
Estates and Trusts
Estates and trusts must also pay estimated tax. However, estates (and certain grantor trusts that receive the residue of the decedent’s estate under the decedent’s will) are exempt from paying estimated tax for the first 2 years after the decedent’s death.
Estates and trusts must use Form 1041-ES, Estimated Income Tax for Estates and Trusts, to figure and pay estimated tax.
Using the guidance
Keep the documents that establish the dates, amounts, and circumstances described above. References to other chapters, forms, worksheets, or earlier and later sections refer to the linked IRS publication. Check the full publication and its updates before relying on a rule for a different tax year or a situation not addressed here.
Sources and further reading
- Publication 505 (2026), Tax Withholding and Estimated Tax: Estimated Tax for 2026 — Who Must Pay Estimated Tax — Internal Revenue Service; 2026 edition.
The cited U.S. government text is in the public domain. Source accessed October 28, 2026. Fynoptic has organized this material for educational use and is independent of, and not endorsed by, the IRS.