The state of Mississippi has special sales and use tax rules for construction contractors. Some contractors pay a special contractor’s tax equal to 3.5% of gross revenues in lieu of a 7% sales tax. However, this contractor’s tax is only assessed on commercial contracts in excess of $10,000.
When a contractor signs a contract that qualifies for the contractor’s tax, they are required to file Form 72-340 Certificate of Prime Contract Amount and Form 72-405 Application for Material Purchase Certificate (MPC) before beginning any work on the contract. The Application for Material Purchase Certificate form will calculate the contractor’s tax due. Contractors with a physical location outside Mississippi are required to prepay the tax, but contractors with a physical location inside of Mississippi must only prepay the full tax if the contract amount exceeds $75,000. If you cannot pay (or choose not to pay) the tax up front, you can elect to file a surety bond with the Mississippi Department of Revenue to guarantee the payment of the taxes. If your contract does not require pre-payment, or if you filed a surety bond instead of pre-paying, tax payments are due monthly with your sales tax return. The tax due each month is calculated on the payments received under the contract.
Because the contractor’s tax is assessed in lieu of sales tax, the filing of the Application for Material Purchase form will also generate an MPC number that can be used to purchase component materials and supplies sales tax-free. Although the component materials are not subject to sales tax, the purchase of equipment used to complete the contract is still a taxable sale, and the contractor will be required to pay sales tax on the purchase. Recently, the Growth and Prosperity Program (GAP Program) has created a loophole that allows the property owner to purchase the equipment and machinery the contractor may need to complete construction free of sales tax. The GAP Program can also be utilized to reduce the total contractor’s tax liability. See our blog entry on the GAP Program for more information.
Some contractors choose to bill the owner of the property for the contractor’s tax. In this case, the amount of the sales tax must be included in the contract price. In order to calculate this amount, use the factor 1.0362694 multiplied by the original contract price. For instance, image that you plan to bid $100,000 for a construction contract without taking taxes into consideration. However, you decide that you would like to include the contractor’s tax in the contract amount. The total bid price would be increased to $103,626.94 (100,000 x 1.0362694). The resulting contract would create a contractor’s tax liability of $3,626.94 (103,626.94 x 3.5%). This effectively makes the tax an expense of the property owner, not the contractor, as the contract will now include the $100,000 original contract, plus the tax liability.
If you have questions about the contractor’s tax, give us a call. If you are engaged in a construction contract that does not qualify for the contractor’s tax, stay tuned for next month’s post!



