Because your rental is a business and the IRS wants to make sure the plumber will report what you paid them as income.
For more info see articles like this:
https://www.nolo.com/legal-encyclopedia/do-landlords-need-to-file-form-1099-misc.html
There are a number of exceptions, such as payments to Corporations (C-corps, S-corps, or LLCs taxed as corporations.) See https://www.irs.gov/instructions/i1099msc#idm140364727514192
TT Home & Business should be able to generate the 1099-NEC for you but other services can as well.
**Say "Thanks" by clicking the thumb icon in a post
**Mark the post that answers your question by clicking on "Mark as Best Answer"
