Oklahoma Income Tax
Income taxes should be turned in by April 15th.
Oklahoma Tax Filing Guide
Here are detailed instructions for filing taxes in the state of Oklahoma.
Consider using TurboTax to E-File your Oklahoma taxes.
Oklahoma Residents
If your domicile (permanent) home was in Oklahoma all year you are a resident of Oklahoma. If you are an Oklahoma resident that had to file a Federal return or if you made over $12,500 (filing as married, filing separately), $15000 (filing as single), $19000 (filing as head of household), or $25000 (filing as married, filing jointly) you will need to file a Oklahoma income tax return. If you are either blind or over 65 at the end of the tax year you may qualify for a $1000 exemption. If you are not required to file a return because you did not make the necessary amount of income to fulfill the the above requirements, but had income withheld, you will still need to file a return to receive a refund on. To file a Oklahoma resident return use Form-511 and see Form-511 Instructions for additional information or assistance.
Related Tax Forms
- Form-511 - Oklahoma Individual Resident Income Tax Return
Part-Year Oklahoma Residents
If your domicile (permanent) home was in Oklahoma for only part of the year, which could be the case if you either moved in or out of Oklahoma in the past year, you are a part year resident of Oklahoma. If you are a part year resident of Oklahoma you have the same filing requirements as a resident during the time you were a resident of Oklahoma and the same filing requirements as a nonresident during the time of non-residency. File Form-511NR (attached below) if you need to file a part-year return and see the Form-511NR Packet (attached below) for additional information and assistance.
Related Tax Forms
- Form-511NR - Oklahoma Part-Year and Non-resident Income Tax Return
Oklahoma Residents who work in another state
If your domicile (permanent) home was in Oklahoma all year you are a resident of Oklahoma. If you are an Oklahoma resident that had to file a Federal return or if you made over $12,500 (filing as married, filing separately), $15000 (filing as single), $19000 (filing as head of household), or $25000 (filing as married, filing jointly) you will need to file a Oklahoma income tax return. If you are either blind or over 65 at the end of the tax year you may qualify for a $1000 exemption. If you are not required to file a return because you did not make the necessary amount of income to fulfill the the above requirements, but had income withheld, you will still need to file a return to receive a refund on. To file a Oklahoma resident return use Form-511 and see Form-511 Instructions for additional information or assistance.
If you were an Oklahoma resident that worked in another state you will be taxed by Oklahoma on that income. This is because Oklahoma taxes all income earned by its residents regardless of where the income was earned. The problem is that the state in which you earned the income was earned may also tax the income. This is because a lot of states tax any income that was earned in them. This means you will face dual taxation on this income. To solve this problem Oklahoma has a credit for taxes paid to another state. To obtain this credit file Form-511TX and attach it to the return for the other state. Make sure to also include your W-2 (obtained from your employer), and your Oklahoma return (filed using Form-511, attached below) when filing. Make sure to report all income you earned from all sources on Form-511. See Form-511 Instructions for additional information or assistance.
Related Tax Forms
- Form-511 - Oklahoma Individual Resident Income Tax Return
- Form-511TX - Oklahoma Credit for Tax Paid to Another State
Non-Residents who work in Oklahoma
If your domicile (permanent) home was outside of Oklahoma all year you are a nonresident of Oklahoma. Nonresidents who made more than $1000 of income from Oklahoma sources must file a Oklahoma nonresident return. If you are not required to file a nonresident return with Oklahoma but had income withheld you will need to file a return to receive a refund. Taxable income from Oklahoma sources include income from distributions from Limited Liability Companies (LLCs) , subchapter S corporations, and partnerships doing business in Oklahoma (this income may be in the from of shares, income, gains, losses or deductions). Additionally income from rents royalties, and gains from the sale of property located in Oklahoma counts as Oklahoma taxable income as does income from gambling winnings. To file a nonresident return use Form-511NR (attached below) and for additional assistance or information see Form-511NR Packet (attached below).
Related Tax Forms
- Form-511NR - Oklahoma Part-Year and Non-resident Income Tax Return
Non-Residents who sold property in Oklahoma
If your domicile (permanent) home was outside of Oklahoma all year you are a nonresident of Oklahoma. Nonresidents who made more than $1000 of income from Oklahoma sources must file a Oklahoma nonresident return. If you are not required to file a nonresident return with Oklahoma but had income withheld you will need to file a return to receive a refund. Taxable income from Oklahoma sources include income from distributions from Limited Liability Companies (LLCs) , subchapter S corporations, and partnerships doing business in Oklahoma (this income may be in the from of shares, income, gains, losses or deductions). Additionally income from rents royalties, and gains from the sale of property located in Oklahoma counts as Oklahoma taxable income as does income from gambling winnings. To file a nonresident return use Form-511NR (attached below) and for additional assistance or information see Form-511NR Packet (attached below).
Related Tax Forms
- Form-511NR - Oklahoma Part-Year and Non-resident Income Tax Return
Oklahoma State Tax Forms
- Form 538-S - Oklahoma Claim for Credit/Refund of Sales Tax
- Form-511 - Oklahoma Individual Resident Income Tax Return
- SSTI Document - Streamlined Sales Tax Governing Board Document
- Form-511NR - Oklahoma Part-Year and Non-resident Income Tax Return
- Form-511TX - Oklahoma Credit for Tax Paid to Another State
- Form 511CR - Other Credits Form
- Form 511-BAT - Oklahoma Business Activity Tax (for Individuals Who Have A Sole Proprietorship or Report Farm Income)
- Form 538-H - Claim for Credit or Refund of Property Tax
Relevant Links
- State of Oklahoma Tax Website - Official Site
- State of Oklahoma E-File Service - Offered by Oklahoma's Official Website
- Additional Tax Forms - A Comprehensive Collection of Oklahoma Tax Forms
Oklahoma Mailing Address
Wondering where to mail your Oklahoma taxes? Here's the address:Oklahoma Tax Commission
Income Tax
P.O. Box 26800
Oklahoma City, OK 73126-0800
Oklahoma Sales Tax
Oklahoma has a state sales tax of 4.5%. Oklahoma is part of the Streamlined Sales Tax initiative (SSTI), which is designed to create a nationwide, uniform sales tax system and alleviate businesses and individuals of additional paperwork and confusion. To find what items are subject to sales tax see the SSTI document. There are additional local sales taxes that are issued by different cities and counties.
Taxpayers who made less than $20,000 or who have a dependant who is either over 65 or disabled and made less than $50,000 may qualify for sales tax relief, filed with Form 538-S. Form 538-S is due either with you Oklahoma return in April or by itself by June 30th if no return was filed.

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