President Obama signed a short-term highway funding bill
in July that includes several tax-raising provisions. As described
below, this bill makes changes to annual US tax return filing
deadlines.
Adjust filing deadlines―US partnership and S corporation
returns will be due March 15 (or two-and-a-half months after the
tax year) while individual, C corporation and trust returns will be
due April 15 (or three-and-a-half months after the tax year).
Automatic six-month extensions will be available for all returns
except trusts, which will have five-and-a-half-month
extensions.
The changes will generally be effective for tax years beginning
in 2016, except calendar-year C corporations which will get only a
five-month extension until 2026. C corporations with tax years
ending on June 30 will use their current filing deadlines until
2026.