May 31 - File Form 730 and pay the tax on wagers accepted during April.
June 11 - Employers: Employees are required to report to you tips of $20 or more earned during May.
June 15 - Corporations: Deposit the second installment of your 2012 estimated tax.
July 2 - File Form 730 and pay the tax on wagers accepted during May. File Form 2290 and pay the tax for vehicles first used during May. File Form 11-C to register and pay annual tax if you are in the business of taking wagers.
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