Business | Oak Valley Tax

15	Corporations File a 2009 calendar year income tax return (Form 1120 or 1120-A) and pay any tax, interest, and penalties due. This due date applies only if you timely requested an automatic 6-month extension.
15	S Corporations File a 2009 calendar year income tax return (Form 1120S) and pay any tax due. This due date applies only if you requested an automatic 6-month extension.
15	Corporations Deposit the third installment of estimated income tax for 2010 for calendar year corporations.
15	Social Security, Medicare and withheld income tax If the monthly deposit rule applies, deposit the tax for payments in August.
15	Nonpayroll Withholding If the monthly deposit rule applies, deposit the tax for payments in August.
15	Partnerships File a 2009 calendar year return (Form 1065). This due date applies only if you were given an additional 5-month extension. Provide each partner with a copy of K-1 (Form 1065) or a substitute Schedule K-1.