Employers: Give employees their copies of Form W-2 for the previous year by February 1. If an employee agreed to receive Form W-2 electronically, post it on a website accessible to the employee and notify the employee of the posting by February 1.

March – Federal Specific

March 15

Individuals: Make a payment of your estimated tax for the previous year if you did not pay your income tax for the year through withholding (or did not pay in enough tax that way). Use Form 1040-ES. This is the final installment date for your previous year’s estimated tax. However, you do not have to make this payment if you file your previous year’s return (Form 1040) and pay any tax due by February 1, this year.

Employers: Social security, Medicare, and withheld income tax: If the monthly deposit rule applies, deposit the tax for payments for December of last year.

Employers: Non-payroll withholding: If the monthly deposit rule applies, deposit the tax for payments for December of last year.

March – 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.

March – County Specific

March – City Specific