Oklahoma Individual Estimated Tax Declaration
General Instructions
Who Must Make Estimated Payments
You must make equal* quarterly estimated tax payments if
you can reasonably expect your tax liability to exceed your
withholding by $500 or more and you expect your withholding to
be less than the smaller of:
1.70%ofyourcurrentyear’staxliability,or
2. the tax liability shown on your return for the preceding
taxable year of 12 months.
Estates and farmers are not required to make estimated tax
payments. A farmer is an individual who derives at least two-
thirds of his/her gross income for the current year or the previous
year from farming activities.
* If you receive income unevenly throughout the year (e.g. you
operate your business on a seasonal basis), you may be able
to lower or eliminate the amount on your required estimated tax
payment for one or more periods by using the annualized income
installmentmethod.SeeFormOW-8-ES-SUPfordetails.Form
OW-8-ES-SUPmaybedownloadedatwww.tax.ok.gov.
NOTE: Do not use this form for estimated tax payments made on
behalf of the nonresident partners electing to be included in the
composite return. The estimated tax payments must be made
underthepartnership’snameandFederalEmployerIdentication
NumberusingFormOW-8-ESC.
When To File and Pay
Adeclarationofestimatedtaxshouldbeledandtherst
installment paid by April 15th for calendar year taxpayers. Other
installments for calendar year taxpayers should be paid by the
due dates shown below.
Interest for Underpayment
In general, you will owe underpayment of estimated tax interest
if your tax liability exceeds your withholding by $500 or more
and your timely paid quarterly estimated tax payments and
withholding are not at least 70% of your current year tax liability
or 100% of your prior year tax liability. The tax liability is the
tax due less all credits except amounts paid on withholding,
estimated tax and extension payments. The amount of
underpayment of estimated tax interest is computed at a rate
of 20% per annum for the period of underpayment. Note: No
underpayment of estimated tax interest shall be imposed if
thetaxshownonthereturnislessthan$1000.Foradditional
information, see 68 O.S. Sec. 2385.7-2385.13 or call the Tax
Commission’sTaxpayerAssistanceDivisionat(405)521-3160.
FormOW-8-ES-page2
How to Compute Estimated Tax
A worksheet is included with the coupon for use in computing
estimated tax liability. To compute the tax, refer to the tax table
included with Packet 511 or Packet 511NR instructions.
How to Complete Your Tax Declaration Coupon
Name and Address: Enter your name and mailing address.
• On a joint return, enter the name of the primary taxpayer.
The primary taxpayer is the person whose name will be
enteredrstontheincometaxreturn.
• Ifyouraddresshaschanged,placean‘X’whereindicated
in the upper left corner of the coupon.
Taxpayer SSN:Entertheprimarytaxpayer’ssocialsecuritynumber.
Quarter: Enter the quarter for which you are making the
estimated tax payment.
Due Date: Enter the quarterly due date. See below for the due
date for each quarter.
Amount of Payment: Enter the amount of estimated tax being
paid with the estimated tax coupon.
Do not send coupon if no payment is required.
Additional Information
Make checks payable to: Oklahoma Tax Commission.
Do NOT send cash.
Mail the coupon, along with payment, to:
Oklahoma Tax Commission
Post Ofce Box 269027
Oklahoma City, OK 73126-9027
Do not enclose any other tax reports or correspondence in
this envelope.
See below for electronic payment information.
You will receive a pre-printed coupon to make your next quarterly
payment.
Electronic Payment Options:
Electronic payments are accepted for estimated income tax pay-
ments at www.tax.ok.gov. There is a convenience fee charged
for utilizing some of the electronic payment services.
Note: If you make your estimated tax payment electronically, do
notmailthispaymentcoupon.Pleaseretaintheconrmation
number for your records.
Due Dates (Calendar year) **
• 1st Quarter - April 15
• 2nd Quarter - June 15
• 3rd Quarter - September 15
• 4th Quarter - January 15
** If the due date falls on a weekend or legal holiday when the
OklahomaTaxCommissionofcesareclosed,yourpaymentis
due the next business day.