August – Federal Specific

August 2

Employers: Social Security, Medicare, and withheld income tax. File Form 941 for the first quarter of 2010. Deposit or pay any un-deposited tax under the accuracy of deposit rules. If your tax liability is less than $2,500, you can pay it in full with a timely filed return. If you deposited the tax for the quarter in full and on time, you have until September 10 to file the return.

Federal unemployment tax: Deposit the tax owed through July if more than $500.

August 15

Employers: Social security, Medicare, and withheld income tax. If the monthly deposit rule applies, deposit the tax for payments in July.

Non-payroll withholding: If the monthly deposit rule applies, deposit the tax for payments in July.

August – State Specific

Resellers: File and pay state sales taxes you have collected as obliged by the California State Board of Equalization (BOE) on the date of this month that BOE has designated for you.

August – County Specific

August – City Specific