Deadlines & Extensions
Deadlines
- What is the filing deadline for tax year 2025 (taxes filed in 2026)?
- Louisiana filing and tax deadline dates for 2025 returns
- Kansas filing and tax deadline dates for 2025 returns
- Iowa Filing and Tax Deadline Dates for 2025 Returns
- Indiana Filing and Tax Deadline Dates for 2025 Returns
- Illinois Deadline Dates for 2025 Tax Returns
Extensions
- Do I need to file an extension (Form 4868)?
- How do I complete my extension (Form 4868)?
- What are my payment options when filing an extension?
- How do I make a payment with my extension?
- Where do I enter the amount I paid with my federal extension?
- Where do I Mail IRS Form 4868?