News & Tax Deadlines

News

Estimate payment due dates: April 15th, June 15th, September 15th, and January 15th
Tax returns due April 15th, (Iowa return due April 30th) If extended by form 4868, tax return due October 15th

Estimate payment due dates: By the 15th day of the 4th, 6th, 9th, and 12th months of the corporation's tax year
- Example: Corp year-end of June 30th would be due by Oct. 15th, Dec. 15th, Mar. 15th, and June 15th
Tax returns due March 15th (Calendar year-end)

Monthly Federal/FICA Depositor - Payable to local bank with coupon or EFTPS ***
- Deposit Form 941 taxes on payroll made during a month by the 15th day of the following month
Semi-weekly Depositor - Payable to local bank with coupon or EFTPS ***
- Deposit Form 941 taxes within 3 business days of payroll check date

*** EFTPS Note: Must be initiated before 7:00 pm the day before tax is due

Form 941 Employer's Quarterly Federal Tax Return
- April 30
- July 31
- October 31
- January 31
Federal Unemployment Tax - Due if tax $500 or more
- April 30
- July 31
- October 31
- January 31
Form 940 - Employer's Annual Federal Unemployment Tax Return
- January 31 of following year
Form 943 - Ag Employer's Annual Federal Tax Return
- January 31 of following year

State Withholding - Payable to Treasurer State of Iowa
- Effective for tax periods beginning on January 1, 2005:
  - Taxpayers must file returns online at www.state.ia.us/tax/index.html
  - Paper forms will no longer be provided or available on the website or tax fax
  - Payment will still be accepted by paper check only with payment voucher or by ACH payment through website
- Deposit Form 941 taxes on payroll made during a month by the 15th day of the following month
Iowa State Unemployment - Payable to Iowa Workforce Development
- April 30
- July 31
- October 31
- January 31
Full List of Tax Due Dates:
- Due Date Calendar: Look for Excel Spreadsheet on IA Dept of Rev. website