It is time to make your second estimated tax payment of 2013. The deadline for making this payment is June 15. For individuals you can get more information and vouchers here (the vouchers are at the end).
Corporations also need to file quarterly estimated payments. Their payment dates depend on the month that their fiscal year ends, but payments are due on the 15th day of the 4th, 6th, 9th, and 12th month of their tax year- if you have a December year end that means June 15 is your next payment date. To find out more information check out the instructions here. Unfortunately corporations can’t send in paper checks- only electronic payments through EFTPS.
Any of this seem confusing? Contact me for clarity!