MinhT1
Expert Alumni

Investors & landlords

The principal business code is a six digit number  that represents the field of work you are in. This code is entered on your Schedule C. The complete list of codes can be found on  pages 18 to 20 of this IRS document.

 

For your real estate rental business, you could use code 531100 

 

This code is for statistical purposes only and doesn't affect your tax. 

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