1040 Oklahoma electronic filing information
State contact information
If you have specific questions about what you can e-file or about rejections you received, contact the state for more information.
Oklahoma Tax Commission
P.O. Box 26890
Oklahoma City, OK 73126-0890
Email
: efile@tax.ok.govPhone
: 405-521-3637 or 405-522-5723 or 800-522-8165 ext. 13637 Tax Refund Inquiries
: 405-521-3160 or 800-522-8165 ext. 13160 State electronic filing details
E-filing information | Details |
|---|---|
Grace period | 10 days |
E-filing mandate | Yes, if filing more than 10 returns |
Accepts state-only filings | Yes |
Return types accepted | Resident Nonresident Part-year Estimate Payments Amended |
Return types not accepted | Extension |
Accepts returns with these conditions | Refund Zero balance Balance due |
Direct deposit of refunds | Yes |
Accepted forms of payment | Direct debit (EFW) Electronic funds transfer (EFT) Credit card |
Signature requirements | ERO retains signed Form 511-EF for 3 years. PIN allowed as signature: Yes - Fed/State, No - State only |
Drivers license requirements | Optional |
Supports PDF attachments | Yes |
Tax year(s) supported for e-filing | Current tax year and two prior tax years |
Special considerations | N/A |
