The IRS opens filing season in late January most years, but you can file before then if you have all your documents
The IRS typically begins accepting tax returns in late January — usually around January 27 to January 29, though the exact date shifts slightly each year. However, you do not have to wait for that date. If your employer, bank, or other income source has already sent you the documents you need (your W-2, 1099 forms, or other income statements), you can file as soon as you have them, even in December of the previous year.
The reason the IRS sets an official opening date is that they need time to update their systems and prepare for the volume of returns. But from a practical standpoint, the date that matters to you is when you have the documents in hand. Most employers mail W-2s by January 31, and most financial institutions send 1099s by the same deadline. If you have received those documents, you are ready to file whenever you choose.
Key Takeaways
- The IRS opens the filing season in late January each year, usually around January 27 to 29, but you can file earlier if you already have all your income documents.
- W-2s must be mailed to you by January 31, and 1099s for interest, dividends, and self-employment income must arrive by the same date.
- Filing early can mean receiving your refund sooner, since the IRS processes returns in the order they arrive.
- If you file before the IRS officially opens, your return will be held and processed once the season begins — it will not be rejected.
Why employers and financial institutions have January 31 deadlines
The January 31 deadline is set by federal law. Your employer must provide you with a W-2 by that date, and banks, investment firms, and other payers must send you 1099 forms by then as well. This deadline exists so that you have time to gather your documents and file before the April 15 tax deadline.
In practice, many employers and institutions send these documents earlier — often by mid-January or even late December. If you have not received a W-2 or 1099 by early February, contact the employer or institution directly. They are required to provide it, and if they do not, the IRS has a process for handling missing documents.
What happens if you file before the IRS officially opens
If you file your return before the IRS opens the filing season, your return will be accepted by the tax software or tax preparer you use, but the IRS will not process it immediately. Instead, it will be held in a queue and processed starting on the official opening date. Your return will not be rejected or delayed — it simply waits its turn along with all the others filed that day.
This means filing a few days or weeks early does not hurt you, but it also does not speed up processing. The real advantage to filing early is that once processing begins, your return moves through the queue in the order it was received. If you file in early February and someone else files in mid-April, yours will be processed first, and you will receive your refund sooner.
Documents you need before you can file
You cannot file a complete return without the income documents from every source you earned money from during the year. The most common documents are:
- W-2 forms from each employer you worked for
- 1099-NEC or 1099-MISC forms if you were paid as an independent contractor or freelancer
- 1099-INT if you earned interest from a bank or savings account
- 1099-DIV if you received dividends from investments
- 1099-G if you received unemployment benefits or state tax refunds
If you are missing any of these documents by early February, contact the payer directly. You can also file a return without them if you estimate the amounts, but you will likely need to file an amended return later when the documents arrive. It is usually simpler to wait until you have everything.
How to know if you are ready to file
You are ready to file when you have received all income documents from every source you earned money from, and you have gathered any receipts or records you need for deductions. For most people, this means having your W-2s and any 1099s in hand.
If you take the standard deduction (which most people do), you do not need receipts or records to file — the IRS allows you to claim a fixed amount based on your filing status. If you itemize deductions instead, you will need to have kept records of charitable donations, medical expenses, mortgage interest, property taxes, or other deductible expenses throughout the year.
Once you have your documents and know which deductions you are claiming, you can file through tax software, a tax preparer, or the IRS Free File program if your income is below a certain threshold. You do not need to wait for the official filing season to begin.
Why filing early can save you money
If you are expecting a refund, filing early means the IRS will process your return sooner and send your refund sooner. Refunds are typically issued within 21 days of the IRS receiving your return, though some take longer if the return requires additional review.
Filing early also gives you more time to catch and fix any errors before the April 15 deadline. If the IRS finds a mistake on your return, they will contact you, but you will have more time to respond if you filed in February rather than in April.
What to do if you cannot file by April 15
If you do not have all your documents by April 15, or if you simply need more time, you can request an extension. Filing an extension gives you until October 15 to submit your return. However, an extension to file is not an extension to pay — if you owe taxes, they are still due on April 15, and you will owe interest and penalties on any amount not paid by that date.
To request an extension, file Form 4868 with the IRS before April 15. You can file this form through tax software, a tax preparer, or by mailing it to the IRS. Filing the extension form is free and takes only a few minutes.
Frequently Asked Questions
Can I file my taxes in December before the year ends?
Technically you can file a return for the prior year in December, but you cannot file for the current year until January 1 at the earliest. For example, in December 2024 you could file your 2023 return if you have not already, but you cannot file your 2024 return until January 1, 2025. Most people wait until they have their W-2s and 1099s, which arrive in January.
What if my employer has not sent my W-2 by February 1?
Contact your employer's payroll or human resources department and ask for the W-2. They are required by law to send it by January 31. If they do not respond within a few days, you can contact the IRS and report the missing W-2. The IRS can investigate and may issue you a transcript showing your income, which you can use to file your return.
Does filing early increase my chances of an audit?
No. The IRS does not audit returns based on when they are filed. Audits are selected based on the information in the return itself — certain deductions, income levels, or discrepancies between your return and documents the IRS has received trigger audits. Filing in January versus April makes no difference to audit risk.
If I file before the IRS opens, will my refund be delayed?
No. Your return will be held until the filing season opens, then processed in the order it was received. Filing early actually means your refund will arrive sooner than if you wait until April, because the queue moves forward from the earliest filed returns first.