OCTOBER BUSINESS TAX DATES Oct 1- File Form 730 and pay tax on wagers accepted during August. File Form 2290 and pay the tax for vehicles first used during August. Oct 3- Deposit payroll tax for payments on Sep 26-28 if the semiweekly deposit rule applies. Oct 5- Deposit payroll tax for payments on Sep 29-Oct 2 if the semiweekly …