OW-8-P-SUP-I: 2024 Form OW-8-P-SUP-I Annualized Income Installment Method for Individuals (2024)
Oklahoma · Oklahoma Tax Commission · Used for tax years 2024
Oklahoma Form OW-8-P-SUP-I is used by individuals to calculate required estimated tax installments using the annualized income installment method for 2024. It uses income, deductions, exemptions and credits for specified periods to figure installment amounts entered on Form OW-8-
Who files this form
Form OW-8-P-SUP-I is for individuals using the annualized income installment method to figure their required Oklahoma estimated tax installments for 2024. The form includes special instructions for part-year residents and nonresidents filing Form 511-NR.
If you use this form for any payment due date, you must use it for all payment due dates. Complete Section Two, Part 1 of Form OW-8-P before completing this form.
What you'll need
Have these forms and information available:
- Form OW-8-P, with Section Two, Part 1 completed.
- Your Oklahoma return, Form 511 or Form 511-NR, and the name and Social Security number shown on your return.
- Income and adjustments for each 2024 period: January 1 through March 31, May 31, August 31, and December 31. Include your share of partnership or S-corporation income or loss.
- Your Oklahoma deductions, number of exemptions, adjustments to Oklahoma adjusted gross income, and credits, including credits carried over from a previous year.
- The Oklahoma Tax Table.
If applicable, consult the individual income tax packet for deduction and exemption proration rules and the adjustments listed in Schedule 511-C or Schedule 511-NR-C.
How to file
Enclose Form OW-8-P-SUP-I and Form OW-8-P with your return. Check the “annualized installment method” box on Form 511 or Form 511-NR.
Transfer each required installment from line 24 to the applicable column of Form OW-8-P, Section Two, Part 2, line 9.
Common mistakes
- Using the method for only some payment due dates. If you use this form for one payment due date, you must use it for all payment due dates.
- Starting before Form OW-8-P is ready. Complete Section Two, Part 1 of Form OW-8-P first.
- Missing proration for out-of-state income. If you had out-of-state income during a period, prorate deductions and exemptions before entering the total on line 10.
- Handling credits incorrectly. Do not include withholding credits on line 14 or annualize any credit. Do annualize income or deductions used to figure a credit, and include credits carried over from a previous year.
- Overlooking the Form 511-NR rules. Part-year residents and nonresidents must calculate lines 1 through 12 as if all income were earned in Oklahoma, then follow the special instructions for line 13.
- Leaving out attachments or the checkbox. Enclose this form and Form OW-8-P with your return, and check the annualized installment method box on Form 511 or Form 511-NR.
Questions people ask
Which income periods does the 2024 form use?
The columns cover January 1 through March 31, January 1 through May 31, January 1 through August 31, and January 1 through December 31. Each period starts on January 1.
How does the form determine my required installment?
The schedule selects the smaller of the annualized income installment or the regular installment, increased by any amount saved through the annualized method for earlier installments. On line 24, enter the smaller of line 19 or line 22.
What if I do not itemize deductions?
Enter “0” on line 4 and skip to line 7. Enter your full Oklahoma standard deduction in each column of line 7. For line 8, follow the instructions based on whether you would have itemized or claimed the standard deduction on your federal return for that period.
Where can I find more information about annualizing income?
The form directs you to the federal instructions for Form 2210 or Federal Publication 505 for additional information. It states that Oklahoma's estimated tax annualization method is the same as the method prescribed in the Internal Revenue Code.