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Income tax filing deadlines
Don’t wait until the last minute to start prepping your financials for tax filing. Consider this your official filing cheatsheet.
S corporation and partnerships
March 15
S corporation (Form 1120-S) and partnership (Form 1065) tax returns are due March 15. This is also the deadline to file for an extension using Form 7004.
If you successfully apply for an extension, your new filing due date is September 15. Note that even with an extension, you still need to pay an estimate of your taxes on the original due date.
Forms
- Form 1120-S, Income Tax Return for an S Corporation
- Form 1065, US Return of Partnership Income
- What is Form 7004 and How to Fill it Out
Don’t want to miss the March 15th filing deadline? OctoTax is the fastest solution for small businesses to get their records completed and taxes filed—minimizing late filing penalties as much as possible.
Sole proprietors and C corporations
April 18
Sole proprietors filing Schedule C (Form 1040) and C corporation returns (Form 1120) are due April 18. This is also the deadline to file for an extension using Form 4868.
If you successfully apply for an extension, your new filing due date is October 16. Note that even with an extension, you still need to pay an estimate of your taxes on the original due date.
Forms
- Schedule C, Profit or Loss from Sole Proprietorship
- Form 1040, U.S. Individual Income Tax Return
- Form 1120, U.S. Corporation Income Tax Return
- What is Form 4868? (How to Get a Tax Extension)
Don’t want to miss the April 18th deadline? OctoTax is the fastest solution for small businesses to get their records completed and taxes filed—minimizing late filing penalties as much as possible.
Meet your all-star team That Help You!
When it comes to tax filing, there’s a lot of moving pieces. Your team of experts tracks every detail for you, and works in tandem to get you organized and filed on time.
Bookkeeper
Your bookkeeper completes your books and prepares your financials each month. Questions? Chat with your bookkeeper in the OctoTax platform, or book a call directly in the app.
Bookkeeper
Tax Coordinator
Tax season can be overwhelming. That’s why your dedicated Tax Coordinator supports you through the entire process. Need help tracking down tax-related documents or info? Your Tax Coordinator is here to help.
Tax Coordinator
Octo Tax Advisor
Our OctoTax Tax Advisors are licensed tax professionals that facilitate the preparation of your income tax return, review it with you and then get it filed with the IRS and your state. They also provide unlimited, year-round advisory services.
Bench Tax Advisor
Ditch the tax filing stress
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