The IRS typically begins accepting tax returns in late January

The IRS opens its filing season in late January each year, though the exact date shifts slightly from year to year. For the 2024 tax year, the IRS began accepting returns on January 29, 2024. For 2025 tax returns, filing opened on January 27, 2025. The agency announces the opening date in the fall of the previous year, so you can plan ahead.

The reason for the late-January start is processing time. The IRS needs several weeks after December 31 to receive final documents from employers, banks, and other institutions — W-2 forms, 1099s, mortgage interest statements, and others. Until those documents arrive at the IRS, the agency cannot reliably match what you report against what employers and financial institutions report about you.

You can prepare your return before the filing season opens, and many people do. Tax software lets you enter your information as soon as you have your documents. But you cannot electronically file your return with the IRS until the agency's systems are live. If you mail a paper return before the season opens, it will sit in a processing queue until the IRS is ready to handle it.

Key Takeaways

  • The IRS opens its filing season in late January each year; the 2025 season opened January 27.
  • You can prepare your return before the season opens, but you cannot file electronically until the IRS systems are live.
  • The late-January start gives the IRS time to receive W-2s, 1099s, and other documents from employers and financial institutions.
  • The IRS announces the opening date in the fall, so you can mark your calendar and plan when to gather documents.

Why the IRS doesn't open earlier

The IRS cannot process returns reliably until it has received the documents that prove your income, deductions, and credits. Employers must send W-2 forms to employees by January 31, and they send copies to the IRS at the same time. Banks and investment firms send 1099 forms — for interest, dividends, capital gains, and other income — on similar timelines. Mortgage companies send 1098 forms showing interest paid. Until the IRS has these documents in its system, it cannot cross-check your return against them.

Opening earlier would mean processing returns that claim income or deductions the IRS has not yet verified. That creates a backlog of returns that need manual review later, which slows down the entire system. By waiting until late January, the IRS can process most returns automatically and catch discrepancies faster.

What you can do before filing season opens

Gather your documents as soon as they arrive. W-2s typically come in early January, though employers have until January 31 to send them. 1099s arrive throughout January. Mortgage statements, property tax records, and charitable donation receipts come on their own schedules. Having these in hand before the filing season opens means you can file on the first day if you want to.

Enter your information into tax software early. Most tax software lets you build your return before you file it. You can input your personal information, income, deductions, and credits, then review everything before you hit submit. This approach catches errors before you file and means you are ready to transmit the moment the IRS systems go live.

If you use a tax professional — a CPA, enrolled agent, or tax preparer — you can meet with them before the season opens. They can review your documents, answer questions about deductions or credits, and prepare your return. Then they file it the day the IRS is ready to receive it.

Filing early versus filing later in the season

Filing early has one clear advantage: you get your refund sooner. The IRS typically processes returns within 21 days of receipt if you choose direct deposit. Filing in February means you may see your refund in March. Filing in April means you may see it in May. If you are counting on that money, filing early matters.

Filing early also means you avoid the last-minute rush. Tax professionals are busiest in March and April, and if you need help, you may wait longer or pay higher fees. The IRS phone lines are also less congested in February than in April.

The downside to filing early is that you lock in your return before all your documents have arrived. If a 1099 or W-2 arrives after you file and shows different income than you reported, you will need to file an amended return. This is rare but possible. Most people file in February or early March, after they have received most documents but before the April 15 deadline.

The April 15 deadline and extensions

April 15 is the deadline to file your return or request an extension. If you file by April 15, you meet the legal requirement. If you cannot file by then, you can request an automatic extension that gives you until October 15 to file. The extension applies to filing only, not to paying taxes owed — if you owe money, it is due by April 15 whether you file by then or not.

You request an extension by filing Form 4868 with the IRS. You can file this form electronically through tax software, by mail, or through a tax professional. Filing the extension form is straightforward and costs nothing. The IRS grants it automatically if you file the form by April 15.

What happens if you file before documents arrive

If you file your return and then receive a W-2 or 1099 that shows different income than you reported, you need to file an amended return using Form 1040-X. This form corrects errors or adds information that was not available when you originally filed. You mail it to the IRS, and they process it separately from your original return.

Amended returns take longer to process than original returns — typically 16 weeks or more. If the amendment results in a refund, you wait longer to receive it. If it results in additional tax owed, you should pay it as soon as you file the amendment to avoid interest and penalties.

To avoid amending, wait until you have received all your documents before filing. This is especially important if you have income from multiple sources — W-2 income, self-employment income, investment income, rental income, or others. The extra week or two of waiting is usually worth the certainty.

Frequently Asked Questions

Can I file my taxes before the IRS filing season opens?

You can prepare your return before the season opens, but you cannot file it electronically with the IRS until the agency's systems are live. If you mail a paper return early, it will be held until the IRS is ready to process it. Most people wait until the season opens to file electronically.

What if I file early and then get a corrected W-2 or 1099?

You will need to file an amended return using Form 1040-X. Amended returns take 16 weeks or longer to process. To avoid this, wait until you have received all your income documents before filing your original return.

Does filing early mean I get my refund faster?

Yes. The IRS typically processes returns within 21 days if you choose direct deposit. Filing in late January or February means you may receive your refund in February or March, rather than waiting until April or May.

What if I cannot file by April 15?

You can file Form 4868 to request an automatic extension, which gives you until October 15 to file. The extension is free and automatic if you file the form by April 15. However, if you owe taxes, they are still due by April 15.

Why does the IRS wait until late January to open?

The IRS needs time to receive W-2s, 1099s, and other income documents from employers and financial institutions. These documents arrive throughout January, and the IRS uses them to verify what you report on your return. Opening later reduces the backlog of returns that need manual review.