Table of Contents

W-2 E-Filing: Oklahoma

Nina Tchistiakova Updated by Nina Tchistiakova

Due date

January 31

If any due date falls on a Saturday, Sunday or legal holiday, the return or statement is considered timely if filed or furnished on the next business day. We encourage you to file early.

E-filing threshold

It is mandatory to file all W2's electronically.

Filing options

Electronic filing

Required file name


(001 = file sequence number, 999999999 = YOUR FEIN, 2021 = Tax Year)

E-filing website

Submitting files

To electronically file a W2 with Oklahoma you will need either a Customer Account or a Third–Party Account, in addition to an OkTAP account.

To sign up for a Thrid-Party (no tax account required) account: Contact the Taxpayer Assistance Division of the Oklahoma Tax Commission at (405) 521–3160 to request a BT120 form.

To sign up for a Customer Account:

You can sign up for a Customer Account via our website (this will require the creation of a tax type account).

Click on Online Services at website

Choose Online Filing Businesses

Choose Online Business Registration and the follow online instructions.

Once you have a Customer or Third–Party account, you will need to register for an OkTAP account to upload the 1099s.

To register for a OKTAP account with OTC:

1.        Register your business, customer or third-party account at OkTAP.  Or sign up for a third-party (no tax account required) account by calling our Taxpayer Resource Center at 405.521.3160, option 6 and ask for a BT120.

2.        Create an OkTAP Logon: 

1.                         Visit OkTAP

2.                         Under ‘Business Login, click "Don't have a logon? Register here"

Follow the instructions at OkTAP

You will have the option to register multiple OkTAP logons for your account so your employees can upload W2s at the same time from multiple computers.

For files larger than 200 MB : Send an e-mail to . and ask for a Moveit account to process W-2s and our IT security will get an account set up so you can upload your file. Moveit instructions can be found at this link: Moveit instructions will open in a separate document.

You may request an extension by sending e–mail to

At this time the state does not accept prior year filing. No Corrections at this time.

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