The Oklahoma Tax Commission shall:
1. Provide and maintain a database that describes boundary changes for all taxing jurisdictions within this state for sales and use tax purposes. This database shall include a description of the change and the effective date of the change for sales and use tax purposes;
2. Provide and maintain a database of all sales and use tax rates for all of the jurisdictions levying taxes within the state. For the identification of the state, counties, and cities, codes corresponding to the rates must be provided according to Federal Information Processing Standards (FIPS) as developed by the National Institute of Standards and Technology;
3. Provide and maintain a database that assigns each five-digit and nine-digit zip code within the state to the proper tax rates and jurisdictions. The lowest combined tax rate imposed in the zip code area shall apply if the area includes more than one tax rate in any level of taxing jurisdictions. The collections from an area that includes more than one jurisdiction in a level shall be allocated between the jurisdictions according to the pro rata population of each jurisdiction in the area. If a nine-digit zip code designation is not available for a street address or if a seller or certified service provider (CSP) is unable to determine the nine-digit zip code designation applicable to a purchaser after exercising due diligence to determine the designation, the seller or CSP may apply the rate for the five-digit zip code area. For the purposes of this section, there is a rebuttable presumption that a seller has exercised due diligence if the seller or CSP has attempted to determine the nine-digit zip code designation by utilizing software approved by the Tax Commission that makes this designation from the street address and the five-digit zip code applicable to the purchaser;
4. Have the option of providing address-based database records for assigning taxing jurisdictions and their associated rates which shall be in addition to the requirements of paragraph 3 of this section. The database records must be in the same approved format as the database records pursuant to paragraph 3 of this section and must meet the requirements developed pursuant to the federal Mobile Telecommunications Sourcing Act, 4 U.S.C. Sec. 119(a). If the Tax Commission develops and adopts address-based assignment database records pursuant to the Agreement, a seller or CSP may use those database records in place of the five- and nine-digit zip code database records provided for in paragraph 3 of this section. If a seller or CSP is unable to determine the applicable rate and jurisdiction using an address-based database record after exercising due diligence, the seller or CSP may apply the nine-digit zip code designation applicable to a purchase. If a nine-digit zip code designation is not available for a street address or if a seller or CSP is unable to determine the nine-digit zip code designation applicable to a purchase after exercising due diligence to determine the designation, the seller or CSP may apply the rate for the five-digit zip code area. For the purposes of this section, there is a rebuttable presumption that a seller or CSP has exercised due diligence if the seller or CSP has attempted to determine the tax rate and jurisdiction by utilizing software approved by the governing board that makes this assignment from the address and zip code information applicable to the purchase;
5. Have the option, upon meeting the requirements of paragraph 4 of this section, to certify vendor provided address-based databases for assigning tax rates and jurisdictions. The databases must be in the same approved format as the database records pursuant to paragraph 4 of this section and must meet the requirements developed pursuant to the federal Mobile Telecommunications Sourcing Act, 4 U.S.C.A., Sec. 119(a). If the Tax Commission certifies a vendor address-based database, a seller or CSP may use that database in place of the database provided for in paragraph 3 or 4 of this section;
6. Review software submitted for certification as a certified automated system (CAS). The review shall include a review to determine that the program adequately classifies that state’s product-based exemptions. The Tax Commission shall certify its acceptance of the classifications made by the system;
7. Relieve vendors and certified service providers from liability for having charged and collected the incorrect amount of sales or use tax resulting from the seller of the certified service provider relying on erroneous data provided by the Tax Commission on tax rates, boundaries, or taxing jurisdiction assignments. Provided, the vendor or certified service provider shall not be relieved from liability for errors resulting from the reliance on the information provided pursuant to paragraph 3 of this section if the Tax Commission has provided or certified an address-based system pursuant to paragraph 4 or 5 of this section;
8. Be authorized to provide relief from liability to vendors and certified service providers who are participating with the Tax Commission in the use of a sales and use tax collection system that incorporates one or more databases provided or certified by the Tax Commission under this section if the Tax Commission has reviewed and approved such sales and use tax collection system; and
9. Relieve CSPs and Model 2 sellers from liability for not collecting sales or use taxes resulting from the CSP or Model 2 seller relying on the certification provided by the Tax Commission pursuant to paragraph 6 of this section. If the Tax Commission determines that an item or transaction is incorrectly classified as to its taxability, it shall notify the CSP or Model 2 seller of the incorrect classification. The CSP or Model 2 seller shall have ten (10) days to revise the classification after receipt of notice from the Tax Commission of the determination.
Added by Laws 2003, c. 413, § 25, eff. Nov. 1, 2003. Amended by Laws 2004, c. 535, § 5, eff. Nov. 1, 2004; Laws 2007, c. 155, § 8, eff. Nov. 1, 2007.