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 IRS.gov.
September 2017
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Upcoming Tax Dates

September 5 — Everyone
Federal Holiday (Labor Day) Details

September 10 — Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the first 15 days of August.

September 11 — Employees who work for tips
If you received $20 or more in tips during August, report them to your employer Details

September 14 — Regular method taxes
Deposit the tax included in amounts billed or tickets sold during the last 16 days of August.

September 15 — Individuals
Make a payment of your 2017 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 third installment Details

September 15 — S Corporations
File a 2016 calendar year income tax return (Form 1120S) and pay any tax due. This due date applies only if you timely requested an automatic 6-month extension Details

September 15 — Partnerships
File a 2016 calendar year return (Form 1065). This due date applies only if you were given an additional 5-month extension Details

September 15 — Corporations
Deposit the third installment of estimated income tax for 2016 Details

September 15 — Social security, Medicare, and withheld income tax
If the monthly deposit rule applies, deposit the tax for payments in August.

September 15 — Nonpayroll withholding
If the monthly deposit rule applies, deposit the tax for payments in August.

September 27 — Communications and air transportation taxes under the alternative method.
Deposit the tax included in amounts billed or tickets sold during the last 16 days of August.

September 29 — Regular method taxes
Deposit the tax for the first 15 days of September.

September 29 — Regular method taxes (special September deposit rule)
Deposit the tax for the period beginning September 16 and ending September 26.

September 29 — Communications and air transportation taxes under the alternative method (special September deposit rule).
Deposit the tax included in amounts billed or tickets sold during the period beginning September 1 and ending September 11.

September 30 — Wagering tax
File Form 730 and pay the tax on wagers accepted during August.

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