Wyoming Statutes Title 39. Taxation and Revenue § 39-16-109. Taxpayer remedies

(i) Any tax, penalty or interest which has been erroneously paid, computed or remitted to the department by a vendor shall on department approval be credited against any subsequent tax liability from the payee or may be refunded. If a vendor erroneously collects taxes from a taxpayer and remits those taxes to the department, the vendor may seek a refund or credit against subsequent tax liability only after the vendor has refunded the erroneously collected tax to the taxpayer that originally paid the tax to the vendor. If the taxpayer that originally paid the tax to the vendor cannot be identified, the tax shall not be refunded or credited to the vendor. No credit or refund shall be allowed after three (3) years from the date of overpayment. The receipt of a claim for a refund by the department shall toll the statute of limitations. All refund requests received by the department shall be approved or denied within ninety (90) days of receipt. Any refund or credit erroneously made or allowed may be recovered in an action brought by the attorney general in a court of competent jurisdiction in Laramie county, Wyoming.

(i) Any tax, penalty or interest which has been erroneously paid, computed or remitted to the department by a vendor shall on department approval be credited against any subsequent liability from the payee or may be refunded. If a vendor erroneously collects taxes from a taxpayer and remits those taxes to the department, the vendor may seek a credit against subsequent tax liability or a refund only after the vendor has refunded the erroneously collected tax to the taxpayer that originally paid the tax to the vendor. If the taxpayer that originally paid the tax to the vendor cannot be identified, the tax shall not be credited or refunded to the vendor. Any refund or credit erroneously made or allowed may be recovered in an action brought by the attorney general in a court of competent jurisdiction in Laramie county, Wyoming;

(ii) The taxpayer or vendor is entitled to receive an offsetting credit for any overpaid excise tax identified by an audit that is within the scope of the audit period, without regard to the limitation period for requesting refunds. This paragraph shall not apply to any tax which was erroneously collected from a taxpayer and remitted by a vendor unless the auditor can determine that the erroneously collected taxes have been refunded to the taxpayer that originally paid the tax to the vendor;

(iii) The department shall allow a credit for sales tax legally imposed and paid to another state on a purchase equal to but not exceeding the liability for use tax under this article on that purchase. The department may require that any claim for a credit be substantiated in writing showing the sales tax paid.