Do it by#

• Do it by Wed, Dec 31.
• Due 1 days later (Thu, Jan 1).
• Allow 1 day, for postal pickup.

Submission #

Manual

• Paper: Letter (8.5in x 11in)
• Employers can also submit reports online.
• Mail to:

  Iowa Department of Revenue
  PO Box 10411
  Des Moines IA  50306-0411
  

Online

• Login: https://efilepay.idr.iowa.gov/iao_aaa/welcome.asp

Payment #

Payable to "Treasurer - State of Iowa"

• Payment basis depends on the withholding tax remitted:
• Quarterly:
  • Average monthly withholding tax is less than $500 per month.
  • Due on Apr 30, Jul 31, Oct 31, Jan 31 (month end following the end of the quarter).
• Monthly:
  • Average monthly withholding tax is more than $500 but not more than $10,000 per month.
  • Due on the 15th day of the month following the reporting period.
• Semi-monthly:
  • Average monthly withholding tax is more than $10,000 per month.
  • For the period of 1 to 15, due on the 25th day of the month.
  • For the period of 16 to the last day of the month, due on the 10th day of the following month.
• If the due date falls on a Saturday, Sunday or legal holiday, it must be submitted on the first working day AFTER.
• Employers can view other payment options here.

Notes#

Manual

• Employers must file this return even if there are no reportable wages or taxes due for the reporting period.
• Employers only need to submit one quarterly return, regardless of their payment basis.
• Do not send payment voucher for zero returns.

Online

• Employers must file this return even if there are no reportable wages or taxes due for the reporting period.
• Employers only need to submit one quarterly return, regardless of their payment basis.
• Do not send payment voucher for zero returns.

Purpose#

• To report taxes withheld from employees to the state.

2018 Quarterly submission dates. ia-q-941#

Due For period starting
1. Thu, Jan 31, 2019Mon, Oct 1, 2018
2. Wed, Oct 31, 2018Sun, Jul 1, 2018
3. Tue, Jul 31, 2018Sun, Apr 1, 2018
4. Mon, Apr 30, 2018Mon, Jan 1, 2018

2017 Quarterly submission dates. ia-q-941#

Due For period starting
1. Wed, Jan 31, 2018Sun, Oct 1, 2017
2. Tue, Oct 31, 2017Sat, Jul 1, 2017
3. Mon, Jul 31, 2017Sat, Apr 1, 2017
4. Mon, May 1, 2017Sun, Jan 1, 2017

2016 Quarterly submission dates. ia-q-941#

Due For period starting
1. Tue, Jan 31, 2017Sat, Oct 1, 2016

Learn more#

• Withholding tax information
• Withholding due dates
• Frequently asked questions

Contact#

• Iowa Department of Revenue
  
• Customer Service: (515) 281-3114
• Customer Service: (800) 367-3388
• Email: idr@iowa.gov
• https://tax.iowa.gov/call-us

Download#

• https://tax.iowa.gov/sites/files/idr/forms1/IowaWithholdingTaxQuarterlyReturn%2844095%29_1.pdf