How Many People File a Tax Extension? What You Need to Know
Every year, millions of Americans find themselves needing a little extra time to get their taxes filed—and that’s where extensions come in. But there’s a lot of confusion around what an extension actually does (and doesn’t) do. Let’s break it down in a clear, practical way.
How Many People File a Tax Extension?
Filing for an extension is more common than you might think. In recent years, the IRS has reported that roughly 15–20 million taxpayers request an extension annually. That’s about 10–15% of all individual filers.
Common reasons include waiting on K-1s, complex investments, major life events, or simply needing more time.
What Is the Extended Deadline?
If you file a valid extension, your new deadline to submit your federal tax return is October 15 (or the next business day if it falls on a weekend). For the 2025 tax year (filed in 2026), the extended deadline is October 15, 2026.
Important: An extension gives you more time to file—not more time to pay.
What Happens If You Don’t Pay by April 15?
Even if you file an extension, any tax owed is still due by April 15.
Failure-to-Pay Penalty: 0.5% of the unpaid tax per month, up to 25%.
Interest: Accrues on unpaid taxes and penalties at rates set quarterly.
Failure-to-File Penalty (if no extension filed): 5% per month, up to 25%.
How to File a Tax Extension
Use Form 4868 (Application for Automatic Extension of Time to File U.S. Individual Income Tax Return).
Ways to File:
1. File electronically using tax software or IRS Free File.
2. Pay online and indicate it is for an extension.
3. Mail Form 4868 (less recommended).
Ohio Tax Considerations
For Ohio taxpayers, the state generally honors the federal extension, meaning you typically do not need to file a separate Ohio extension form if you have a valid federal extension.
However, similar to federal rules, this is an extension of time to file—not to pay. Any Ohio income tax owed is still due by April 15 to avoid penalties and interest.
Additionally, many Ohio municipalities have their own local income tax requirements, which may or may not follow federal extension rules. It’s important to confirm deadlines with your specific city or local tax authority.
How Much Should You Pay?
You should estimate your total tax liability and pay as much as possible by April 15 to minimize penalties.
Key Takeaways
- Extensions are common and widely used.
- The filing deadline becomes October 15.
- Taxes are still due April 15.
- Ohio generally follows federal extension rules, but local taxes may differ.
- Penalties and interest apply if you underpay.
- File using Form 4868.
Final Thought
Tax planning doesn’t end on April 15—and filing an extension can actually create an opportunity to be more proactive.
For Ohio-based clients, coordinating federal, state, and local tax strategies is especially important. From managing municipal tax obligations to evaluating Roth conversion opportunities or capital gain timing, small decisions can have a meaningful long-term impact.
If you’re unsure how much to pay, how an extension fits into your broader financial picture, or how to reduce taxes over time, now is a great time to have that conversation.
If you’d like a second opinion or want to build a more intentional tax strategy, reach out to schedule a conversation. We’re happy to help you make smarter decisions—not just at tax time, but year-round.