April 17 — Besides being the last day to file (or extend) your 2011 personal return and pay any tax that is due, 2012 first quarter estimated tax payments for individuals, trusts, and calendar-year corporations are due today. So are 2011 returns for trusts and calendar-year estates, partnerships, and LLCs, plus any final contribution you plan to make to an IRA or Education Savings Account for 2011. SEP and Keogh contributions are also due today if your return is not being extended.
— If you need to file a 2011 gift tax return, it also must be filed or extended by this date.
— If you paid cash wages of $1,700 or more in 2011 to a household employee, you must file Schedule H by this date. You may also have to report any federal unemployment tax paid and any income tax you withheld for your household employees.
April 30 — If you have employees, a federal unemployment tax (FUTA) deposit is due if the FUTA liability through March 31 exceeds $500.
— Most employers must file Form 941 (Employer’s Quarterly Federal Tax Return) to report Medicare, social security, and income taxes withheld in the first quarter of 2012. (If your tax liability is less than $2,500, you can pay it in full with a timely filed return.) If you deposited the tax for the quarter in full and on time, you have until May 10 to file the return.
June 15 — Second quarter estimated tax payments for individuals, trusts, and calendar-year corporations are due today.