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If you are an owner, officer, member, or authorized representative of an existing business registered in the state and would like to register to use the Missouri Department of Revenue's MyTax Missouri, please provide the required information in the following screens. To register as a Business Administrator, you must provide your First and Last Name, Social Security Number, Date of Birth, Phone Number and E-mail Address. To be authorized on a business, you will need the Missouri Tax Identification Number, Business PIN, and Federal Identification Number, if applicable.
If the business is not yet registered with the Missouri Department of Revenue, please discontinue this process and proceed to Online Business Registration