· 01/01 – HAPPY NEW YEAR!!! · 01/10 – Gather tip income from employees · 01/16 – Monthly payroll tax deposit due for Dec; 2011 4th Qtr Estimated Tax Payment due · 01/20 – Idaho Withholding and Sales tax due for Dec/4th Qtr · 01/31 – 4th Quarter federal payroll tax reports due; 940 report and payment due; Idaho 957 due; W-2s, 1099s distributed · 02/10 – Gather tip income from employees · 02/15 – Monthly payroll tax deposit due for Jan · 02/20 – Idaho Withholding and Sales tax due for Jan · 03/12 – Gather tip income from employees · 03/15 – Monthly payroll tax deposit due for Feb; 1120, 1120S, 1065 Income Tax Returns Due · 03/20 – Idaho Withholding and Sales tax due for Feb |