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Cash flow implications of converting primary mortgaged residence to rental
You have some of the math right, but are missing a few things. Here's what I can offer - if I leave anything out, someone please expand or clarify. Rental income can be reduced by mortgage interest and maintenance costs (as you mentioned), but also by property tax payments, association fees, insurance costs, landlord expenses, and depreciation. Note that if you don't live in the property for 3 years, you'll have to pay capital gains tax if/when you sell the house. You can live in it again for 2 of the last 5 years to avoid this. Many people recommend only assuming you will get 10 months of rental income a year, to account for transitions between tenants, difficult in finding new tenants, and the occasional deadbeat tenant. This also adds a buffer for unexpected problems you need to fix in the house. If you can't at least break even on 10 months of income a year, consider the risk. I think there are also some cases where you need to repay depreciation amounts that you have deducted, but I don't know the details. Renting out a house can be fun and profitable, but it's very far from a sure thing. I'd always recommend preparation and caution, and of course talking to professionals about the finances, accounting, and lease-writing. Good luck!