When Does Tax Season Start and End? 2026 Dates and Deadlines to Know

January 26, 2026, marked the start of the 2026 tax filing season. This is the earliest date tax filers could begin submitting their 2025 returns. But when does tax season end? 

The annual tax filing deadline is April 15, 2026, but you don’t need to wait until then to submit a return. Filing early can help you avoid the last-minute scramble and get your refund faster if you expect one. If you need more time, you could push your filing back to October 15 with a tax extension. Let’s look at the key tax filing dates to know for 2026. 

Table of Contents

1. Must-know tax season dates for 2026
2. How to file your 2025 taxes in 2026 
3. What happens if you miss the tax deadline? 
4. When will you get your tax refund?
5. How to prepare for tax season and file smoothly 
6. FAQ

Must-know tax season dates for 2026

Tax season is hectic enough without worrying about missing your window to file. Here’s the full rundown of when tax season begins and ends.

When does tax season start?

Tax season typically begins in late January or early February of each year. The 2026 tax season began on January 26, 2026. 

• Why this matters: Filing your return early can help you avoid processing delays. It can also help prevent someone from filing a fraudulent return using your information to collect a refund. 
• When will the IRS start accepting returns? The IRS began accepting and processing individual federal tax returns on January 26, 2026. 

When does tax season end?

The 2026 tax season ends on Tuesday, April 15, 2026. April 15 is the standard tax filing deadline. If this date falls on a weekend or holiday, the deadline is moved to the next business day. 

• What happens if you miss this deadline? Missing the tax filing deadline can trigger penalties and interest. Both will accrue on any taxes you owe until you file. And if you’re owed a refund instead, you won’t be able to get that money until your return is in. 
• When do taxes have to be filed? Individual tax filers are expected to file their returns by April 15 each year unless the tax deadline falls on a different date. If your income is below the standard deduction for your filing status, you may not be required to file, but the IRS encourages taxpayers to submit a return anyway. 

If you’re behind on tax debts and have increasing interest and fees, you may want to speak to a tax relief firm.

Crucial deadlines to know

Here are other important tax dates to know. 

	Deadline	Who it applies to
Fourth quarter estimated taxes	January 15, 2026	Individuals with self-employment or other income not subject to withholding
Business tax returns	March 16, 2026	Partnerships, including multiple-member LLCs and S corporations
Personal tax returns	April 15, 2026	Individuals filing federal income tax returns
Tax extension request	April 15, 2026	Individuals who want to request a filing extension
Extended tax return deadline	October 15, 2026	Individuals who filed an extension request
Last day to contribute to an IRA or HSA for 2025 tax year	April 15, 2026	Individuals who make IRA or HSA contributions
Business tax extension deadline	September 15, 2026	Partnerships, multi-member LLCs, and S corporations that filed an extension
Business tax extension deadline	October 15, 2026	Sole proprietorships and C corporations that filed an extension

How to file your 2025 taxes in 2026 

The 2026 tax filing season began on January 26, 2026. If you’re ready to file, you’ll need to decide if you want to file electronically or submit a paper return. 

The IRS encourages e-filing as the faster, more efficient way to submit your return, but you have the option to submit a paper return. A paper filing could significantly delay the arrival of your refund. 

If you live in a state that assesses income tax, you’ll need to file your return by the deadline. In most states, the deadline is the same as the federal deadline, which is April 15 for the 2025 tax season. A handful of states have slightly different deadlines ranging from April 21 to May 1 due to local holidays or administrative rules.

One of the biggest mistakes I see is clients missing tax exemptions, especially retired military members who overlook pension exemptions due to a lack of awareness or recent law changes. Another common issue is failing to report all income, particularly when a 1099 is delayed or overlooked. To avoid these mistakes, I advise clients to stay informed about tax law changes, keep a list of expected tax documents, and follow up on missing forms. As tax situations grow more complex, working with a knowledgeable CPA can help ensure accuracy and maximize potential exemptions.

What happens if you miss the tax deadline? 

Missing tax filing deadlines can trigger penalties and interest. The IRS can assess two penalties:

1. Failure-to-file: 5% of the tax due for each month or partial month your return is late
2. Failure-to-pay: 0.5% of the tax due for each month or partial month your tax bill is outstanding

Interest also accrues. Filing an extension can help you avoid the failure-to-file penalty but not the failure-to-pay penalty. If you request an extension, the IRS encourages you to pay any taxes you owe by the April 15 deadline to avoid additional penalties and interest. 

If you miss the April 15 tax filing deadline but haven’t requested an extension, you should file as soon as possible to minimize penalties, pay as much as possible if you owe, and, if necessary, set up a repayment plan with the IRS after making an initial payment. Also, set calendar reminders and adjust your tax withholding if needed to prevent future issues.

When will you get your tax refund?

If you e-file, the IRS typically takes 21 days to process your refund. Direct deposit is the fastest way to get your refund in your bank account. 

Refunds for amended returns or paper returns can take four weeks or longer. Delays might also occur if you e-file, but your return is flagged for further review. 

You can use the IRS Where’s My Refund? tool to check the status of your refund. Statuses usually appear within:

• 24 hours after you e-file a current-year return
• 3 or 4 days after you e-file a prior-year return
• 4 weeks after you file a paper return

To check the status, you’ll need to enter your Social Security number, filing status, and the exact amount of your expected refund. 

How to prepare for tax season and file smoothly 

If you’re ready to check your taxes off your to-do list, a little prep can go a long way. Here are our tips to help you complete your filing with minimal headaches.

• Gather personal information. You’ll need to include your name, date of birth, Social Security number, and address on your return. You’ll also need this info for your spouse if you’re filing a joint return or for any dependents you plan to claim. 
• Organize income documents. You’ll need to tell the IRS about all the money you made during the year. That might include W-2 income you earned from an employer, interest income reported on Form 1099-INT and non-employee compensation reported on Form 1099-NEC. Non-employee compensation means money earned from gig work, side hustles, or freelance work. 
• Add up deductions. Deductions lower your taxable income, which can give you a bigger refund. You’ll need documentation for the deductions you plan to claim, which may include Form 1098-E, a Student Loan Interest Statement, or copies of receipts for deductible expenses you paid out of pocket. 
• Decide how to file. E-filing is the fastest way to get your return in. You can file yourself or hire a tax pro. If you have a simple return, you might be able to navigate tax filing software on your own. On the other hand, it may be worth it to pay a tax preparer’s fee if you have a more complicated return or are worried about making a mistake. 

Resources for tax help

Tax help is available to meet different needs. Here are our recommended resources for navigating your tax filing. 

• IRS Free File. Free File allows you to file your federal return for free using an IRS-approved tax software partner. Some partners offer free state tax return filing as well. You’re eligible for Free File if your 2024 Adjusted Gross Income was $84,000 or less. 
• Volunteer tax help. Volunteer tax help is available to military members, individuals who make $67,000 or less, taxpayers 60 and older, people with disabilities, and taxpayers who need language support. You can use the IRS search tool to find free tax help locally near you.
• CPAs. A certified public accountant can handle your return for you if you have a complicated filing. For example, your taxes may be more complex if you started or sold a business, got divorced, had a child, or generated income from rental properties. 
• Tax relief companies. Tax relief companies offer help to people who owe back taxes. If you haven’t filed last year’s return, for example, you might seek help with your tax liability. 

Anthem Tax Services helps people who are overwhelmed by tax debt to reduce what they owe. The company offers a 100% money-back guarantee if you don’t save money or have your debt reworked. This could be a solid option if you owe $10,000 or more in back tax debt and need help resolving it. 

Read More

Best Tax Relief Companies

FAQ

When do employers send W-2 and 1099 forms?

Employers and businesses must send most tax forms, including W-2s and many 1099 forms, by January 31 each year. For the 2026 filing season, that means workers should receive these forms by January 31, 2026.

A W-2 reports wages earned from an employer, while 1099 forms report income such as freelance work, contract payments, or investment earnings. If you don’t receive an expected form by early February, contact the employer or company that issued the payment to request a copy.

Even if a form arrives late, you’re still responsible for reporting all income on your tax return.

Why are some tax refunds delayed until mid-February 2026?

Some refunds are delayed because of the Protecting Americans from Tax Hikes (PATH) Act, which requires the IRS to hold refunds for certain tax credits.

If you claim the Earned Income Tax Credit (EITC) or the Additional Child Tax Credit (ACTC), the IRS cannot issue your refund before mid-February, even if you file early.

This rule helps the IRS verify income and reduce fraudulent claims. Most taxpayers affected by the PATH Act begin seeing refunds deposited in late February or early March, depending on when they filed and whether they chose direct deposit.