Oklahoma

2024 Oklahoma State Tax Deadlines

If you are a resident or have been involved in significant business operations within Oklahoma, then you might be required to file Oklahoma State Taxes. We look at the most important tax deadlines and tax extensions for Oklahoma in 2024.

Oklahoma Business Tax Deadlines for 2024

C Corporation

Oklahoma C Corporation Tax Deadlines for 2024

You must file & pay Corporate Income Taxes in Oklahoma by May15, 2025.

File Online with the Oklahoma Tax Commission.
File by Mail must be postmarked by the due date.

Form OK 512 – Oklahoma Corporation Income Tax Return.

Extension to File Taxes in Oklahoma for 2024

You must send payment for taxes in Oklahoma for the fiscal year 2024 by May15, 2025.

The Extension Deadline is December 15, 2025, to file your Oklahoma corporate income tax return.

Oklahoma automatically grants 7 months extensions on filing corporate income tax returns, if a federal extension is filed.. This means you do not need to file for an extension in Oklahoma. If your federal return is not extended, or an Oklahoma liability is owed, an extension of time to file your Oklahoma return may be granted on Form 504-C. The Form 504-C must be filed on or before the due date of the return.

This is an extension to FILE, not an extension to PAY – payment is still due May 15, 2025.

Pass-Throughs

Oklahoma S Corporation & Partnership Tax Deadlines for 2024

You must file in Oklahoma by March 15, 2025.

File Online with the Oklahoma Tax Commission.
File by Mail must be postmarked by the due date.

Applicable forms:

Form 512-S – S-Corporation Income Tax Return

Form 514 – Partnership Income Tax Return

Extension to File S Corporation & Partnership Taxes in Oklahoma for 2024

You must send a payment for taxes in Oklahoma for the fiscal year 2024 by April15, 2025.

The Extension Deadline is October15, 2025, to file your Oklahoma S Corporation or Partnership income tax return.

Oklahoma automatically grants 6 months extensions on filing pass-through entity income tax returns, if the federal extension is filed This means you do not need to file for an extension in Oklahoma. If your federal return is not extended, or an Oklahoma liability is owed, an extension of time to file your Oklahoma return may be granted on Form 504-C.

This is an extension to FILE, not an extension to PAY – payment is still due April 15, 2025.

Oklahoma Individual Tax Deadlines for 2024

Estimated Tax Deadline for Oklahoma 2024

Estimated tax payments are made:

April 15, 2024,
June 15, 2024,
September 15, 2024,
January 15, 2025.

See Form OW-8-ES instructions for the amount to pay with each voucher.

Individual Tax Deadline for Oklahoma 2024

You must file & pay Individual Income Taxes in Oklahoma by April 15, 2025.

File Online with the Oklahoma Tax Commission
File by Mail must be postmarked by the due date

Applicable forms:

Form 511 – Residents
Form 511NR – Nonresidents & Part-Year Residents

Extension to File Taxes in Oklahoma for 2024

You must send payment for taxes in Oklahoma for the fiscal year 2024 by April 15, 2025.

The Extension Deadline is October 15, 2025, to file your Oklahoma Individual Income tax return.

Oklahoma will automatically grant a 6 months extension on filing personal income taxes if a federal extension is filed. This means you do not need to file for an extension in Oklahoma if you file a federal extension. If you do NOT file a federal extension, file Form 504-I.

This is an extension to FILE, not an extension to PAY – payment is still due April 15, 2025.

Estates Tax Deadline for Oklahoma 2024

Oklahoma does not have an Estate Tax.

Farmer and Fisherman Taxes for Oklahoma 2024

If at least 2/3 of your gross income for the taxable year is derived from farming, you may pay estimated tax at any time on or before January 15, 2025. If you wait until January 15, 2025, you must pay the entire balance of the estimated tax. However, if farmers file their tax return on or before March 1, 2025, and pay the total tax at that time, they need not file estimated tax.

Sources

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The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.

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2023 Oklahoma State Tax Deadlines

2022 Oklahoma State Tax Deadlines

Tax strategies to save every dollar you deserve

Instead helps you find every eligible tax strategy, from basic credits and deductions to complex scenarios, ensuring you maximize your savings.

Start today

Sell your home

Transform your home sale into a tax-saving opportunity.

QEAP

Skill up your team, scale down your business expenses.

Work opportunity tax credit

Unlock tax savings for empowering your community through hiring.

Oil & gas deduction

Drill into tax savings. Maximize deductions for both tangible and intangible drilling costs.

Hiring kids

Reduce taxable income & self-employment tax by hiring your kids.

Home office

Deduct qualified expenses for using your home for business purposes.

Meal expenses

Business can typically deduct 50% of meals associated with doing business with some cases allowing up to 100% deduction.

Travel expenses

Businesses can deduct necessary travel expenses, like airfare and lodging, directly related to operations for tax savings.

Vehicle expenses

Vehicle tax deduction allows deduction of business vehicle expenses, using a per-mile rate or actual costs, from taxable income.

Late S election

A Late S Election lets a corporation request IRS S corp status post-deadline.

Late C election

A Late C Election is a request to the IRS for C corporation status after the deadline.

Depreciation

Business can typically deduct 50% of meals associated with doing business with some cases allowing up to 100% deduction.

R&D tax credit

Fuel your venture's growth and innovation with the R&D tax credit. Not just for tech firms or big corporations.

Clean vehicle

Businesses and Individuals can receive a tax credit for purchasing new eco-friendly vehicles. Individuals may also qualify on used eco-friendly vehicles.

Residential clean energy

Taxpayers who invest in renewable energy improvements for their home or second home may qualify for a credit to lower their income tax.

Augusta rule

The Augusta Rule lets homeowners rent their property tax-free for up to 14 days a year without reporting the income.

Roth 401k

Roth 401(k) lets employees and individuals make after-tax retirement contributions, offering tax-free growth and withdrawals.

Traditional 401k

Traditional 401(k) plans offer pre-tax retirement savings for employees, with companies reducing taxable income via contributions.