There are many Tax Deadlines that fall on January 31.? Here’s a list to help you not miss a due date:

Thu 31 File Form 720 for the fourth quarter of 2012.
Thu 31 Furnish Forms 1098, 1099 and W-2G to recipients for certain payments during 2012. Furnish Form W-2 to employees who worked for you during 2012.
Thu 31 File Form 730 and pay the tax on wagers accepted during Dec 2012.
Thu 31 Deposit any FUTA tax owed through Dec 2012.
Thu 31 File Form 2290 and pay the tax for vehicles first used in Dec 2012.
Thu 31 Files Forms 940, 941, 943, 944 and/or 945 if you did not deposit all taxes when due.
Thu 31 File your tax return if you did not pay your last installment of esimated tax by January 15th