Enlarge image
Use your mouse or Tab key to move through the fields. Use your mouse or space bar to enable check boxes.
Illinois Department of Revenue
IL-8633-SF 2024 Substitute Forms Provider Annual Enrollment
Step 1: Provide all identification numbers assigned to your business
1 ____________________________________________________ 3 ___ ___ ___ ___ ___ ___ ___ ___
Federal Employer Identification Number (FEIN) Illinois Account ID (if applicable)
2 ____________________________________________________ 4 __________________________________________
National Association of Computerized Tax Processors (NACTP) Vendor number Previously assigned IDOR substitute forms 3-digit vendor ID - if applicable
- if applicable
5 __ New enrollment __ Renewal
Step 2: Provide your business and contact information
6 ___________________________________________________ ____________________________________________________9
Legal name of business Primary contact representative (first and last name)
7 ___________________________________________________ (________) ________ - _______________________
Doing business as (dba) name (if different than above) Daytime phone number
8 ___________________________________________________ ____________________________________________________
Street address Suite # Email address
___________________________________________________ 10 ____________________________________________________
City State ZIP Website address
Step 3: Tell us about your production of substitute forms
11 Describe your production or use (may check more than one)
a ___ Forms library product is offered for purchase d ___ I am a tax professional and develop a substitute tax
Product name _____________________________ form or forms I use for my clients. My clients do not
Illinois tax forms used in this product are produce the form.
___ purchased from another vendor____________
___ used as an unaltered image in my product e ___ The form is developed for my private use and is not
___ developed as part of our product offered for sale.
b ___ Tax software product is offered for purchase f ___ I am a tax professional who requests draft access
Product name _____________________________ and who does not produce substitute forms.
Illinois tax forms used in this product are
___ purchased from another vendor____________
___ used as an unaltered image in my product
___ developed as part of our product
c ___ Tax services product is offered for purchase
Product name _____________________________
Illinois tax forms used in this product are
___ purchased from another vendor____________
___ used as an unaltered image in my product
___ developed as part of our product
12 Check the type of Illinois taxes applicable to your substitute forms
___ Individual income tax ___ Withholding income tax ___ Business income tax ___ Sales/Use/Other
13 Complete Line 14 on Page 2. Provide a separate page for each product produced.
Step 4: Read agreement and sign below
I am authorized by the business named in Step 2 to complete this agreement regarding substitute forms production. I agree to comply with
the development and submission requirements in the 2024 Substitute Forms Guidelines. If notified of an error relating to forms design, written
instruction, or the scan line or barcode, I agree to correct the error, notify my customers, and email evidence of the correction to the email
address below within 10 business days of receiving the department’s notice. I understand that after receiving and approving my completed
Form IL-8633-SF, IDOR will provide me instructions on how to access the draft forms area on the IDOR website at tax.illinois.gov, where I will
access updated information and draft forms. For business uses described in Step 3 — a through c, I understand that a list of approved forms
along with my business and tax product name may be published on IDOR’s website at tax.illinois.gov.
_________________________________________________ _________________ _______________________ (_____)_____-_________
Signature of representative (product or taxpayer) Title Email address Daytime phone number
Email completed form to: Rev.VendorForms@illinois.gov
This form is authorized as outlined by the Department of Revenue Law of the Civil Administrative Code of Illinois.
IL-8633-SF Page 1 of 2 (R-08/24) Disclosure of this information is required. Failure to provide information may result in this form not being processed.
