Mississippi Code Title 27. Taxation and Finance § 27-61-13

If the quarterly report filed by any permittee as provided herein shall establish that such permittee has paid a greater amount of tax for such quarter than permittee was liable for under the provisions of this chapter, then the amount of such overpayment may be carried forward and credit therefor taken against subsequent tax liability incurred under the provisions of this chapter, provided such credit is taken on a report filed within three (3) years from the quarter in which such excess tax was paid.

If the quarterly report filed by any permittee as provided herein shall establish that such permittee has paid a greater amount of tax for such quarter than permittee was liable for under the provisions of this chapter, then under the following conditions such permittee may obtain a refund for such excess tax paid: Permittee must file with the commission a claim for refund on tax paid to this state on fuel consumed outside the State of Mississippi on forms provided by the commission. Such excess tax refund may be allowed if it is shown that such permittee has paid to another state under lawful requirements of such state a tax, similar in effect to the tax herein provided, on the use or consumption in such state of fuel purchased in Mississippi to the extent of the fuel consumed in said other state at the rate per gallon of the applicable Mississippi tax on fuel as established by this chapter. All such claims must be submitted to the commission within three (3) years from the quarter in which the excess tax was paid, otherwise such claim shall be disallowed. Upon approval of such claim, the commission shall issue a refund to the permittee for the amount of the excess tax paid.

Refunds may be withheld when the permittee is in arrears or default to this state for any taxes or has failed to file returns as required by the provisions of the laws administered by the commission.

When a report filed by a licensee under the provisions of the International Fuel Tax Agreement indicates a credit for Mississippi due to an overpurchase of fuel in this state, the credit shall first be used to offset the licensee's tax liability in other jurisdictions. After such offset any remaining credit may be carried forward to a future report or may be refunded to the licensee.