You must file an amended return to make certain changes to your original return. These include changes in income, filing status, amount of deductions, the number of exemptions, and the amount of additions to income and subtractions from income.
Note: Changes made as part of an amended return are subject to audit for up to three years from the date the amended return is filed.
Use Form 502X to file an amended return and include a copyof your federal return. Form 502X and instructions may be obtained by visiting www.marylandtaxes.com or by calling 410-260-7951.