And the potential loss of expertise in information technology and cybersecurity could put both agency efficiency and taxpayer information at risk.

So, no matter how early you file, remember that the federal tax return deadline (Tax Day) is April 15th, 2025. The federal extended deadline is October 15th, 2025 for most taxpayers (but taxes owed are still due by April 15). For more information on both federal and state tax return deadlines, check out Kiplinger’s reports:

Before filing, taxpayers should have their: Social Security numbers for everyone listed on the tax return. Tax forms such as W-2s, 1099s, 1098s and other income documents. IRS letters they may have citing an amount received for a certain tax deduction or credit.

Millions of people have still not filed their online self-assessment tax returns for which the deadline is midnight, meaning they could be fined £100, HMRC has warned. More than three million people who risk the penalty are being advised to go online for help and advice, and to use the app to pay any outstanding tax once their return is submitted.