Follow the steps to fill out the MS DoR Form 80-108 online

1. Click the ‘Get Form’ button to obtain the form and open it in your preferred online editor.
2. Begin with Part I: Schedule A - Itemized Deductions. If you filed using the standard deduction on your federal return, use Federal Form 1040 Schedule A as a reference to transfer the required information. Enter your federal adjusted gross income as specified from Federal Form 1040.
3. Proceed to enter any medical and dental expenses. Calculate and enter the deduction based on the federal guidelines, ensuring you include the related percentages as outlined.
4. Continue with total taxes paid including any state income taxes, then calculate the deduction accordingly.
5. Input total interest paid, charitable contributions, and casualty or theft losses as applicable, ensuring to attach Federal Form 4684 if needed.
6. For other miscellaneous deductions, input the amounts and deduct any Mississippi gambling losses.
7. After completing Part I, add all relevant deductions to arrive at the Mississippi itemized deductions total.
8. Continue to Part II: Schedule B - Interest and Dividend Income. Enter the total interest income and any nontaxable interest, followed by the total dividends and related distributions.
9. In Part III, choose any voluntary contribution check-offs you would like to make if you are a resident. Input the total contributions.
10. Proceed to Part IV for Rental, Royalty, Partnership, and Trust income. Fill out the necessary fields concerning income or loss.
11. Complete Part V with other income or loss information as specified and ensure to total them correctly.
12. Once all parts are filled, carefully review the form. Save your changes, and download or print the completed form as needed.

Complete your MS DoR Form 80-108 online today for accurate and efficient submission.