The Internal Revenue Service announced today the number of tax returns e-filed by businesses rose nearly 9 percent this year, continuing the growth in the number of corporate and partnership returns filed electronically. This year, an additional 625,000 corporations and partnerships chose to e-file their tax returns.

As of Sept. 20, almost 8 million corporations and partnerships e-filed their income tax returns. The IRS estimates that e-file accounts for 77 percent of all corporate and partnership returns filed during 2015. Many corporations and partnerships operating on a calendar year receive filing extensions. The due date for filing a return after filing for an extension is usually Sept. 15.

Most large corporations and partnerships are required to e-file.

Large and mid-size corporations, generally those with $10 million or more in total assets, are required to electronically file their Forms 1120 or 1120S. Partnerships with more than 100 partners (Schedules K-1) are also required to e-file their tax returns. The IRS is seeing growth in e-filing by all business segments.

This year, a record 100,000 large corporations e-filed their returns, an increase of 8 percent compared to the same time last year. The greatest rate of growth in e-filing among these businesses is by large partnerships. This year, 142,237 large partnerships e-filed their tax returns, up almost 16 percent from the same time last year.

Tax Returns e-filed by Corporations and Partnerships

Category of e-filers Sept. 21, 2014 Sept. 20,2015 %Change
Large Corporation Tax Returns 92,494 100,052 8.2%
Other Corporate Returns 4,373,597 4,720,698 7.9%
Total Corporate Returns 4,466,091 4,820,750 7.9%
Large Partnership Tax Returns 122,879 142,237 15.8%
Other Partnership Returns 2,640,319 2,891,466 9.5%
Total Partnerships 2,763,198 3,033,703 9.8%
Total Returns 7,229,289 7,854,453 8.6%
Corporations and partnerships can get more information about IRS e-file at
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Upcoming Tax Dates

June 10 — Employees who work for tips
If you received $20 or more in tips during May, report them to your employer Details

June 15 — Individuals
If you are a U.S. citizen or resident alien living and working (or on military duty) outside the United States and Puerto Rico, file Form 1040 and pay any tax, interest, and penalties due. If you want additional time to file your return, file Form 4868 to obtain 4 additional months to file Details

June 15 — Individuals
Make a payment of your 2018 estimated tax if you are not paying your income tax for the year through withholding (or will not pay in enough tax that way). Use Form 1040-ES. This is the second installment Details

June 15 — Corporations
Deposit the second installment of estimated income tax for 2018 Details

June 15 — Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in May

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