This will obviously vary by jurisdiction, but many locales offer an owner-occupancy discount, which Rastiln will not qualify for.
Also the actual mortgage rate can be higher for rentals. This is an advantage of converting your existing home to a rental. You can keep the existing loan.
Some folks will take out a home equity loan on their primary residence to finance the rental. I’ve heard conflicting answers about whether it’s ok to deduct the interest from your rental income on your taxes if you do this. I would say that you could, but keep a really clean paper trail documenting how the money was never commingled with personal funds and clearly used to purchase the rental.
As far as income taxes… this is where a lot of people decide they need a tax preparer because it’s so easy to screw this stuff up.
You break the purchase price into “land” and “improvements”. (You can use the property tax breakdown to calc a percentage of each and apply that percentage to the purchase price.) Land does not depreciate. You deduct the depreciation on the improvements over a 27.5 year horizon (straight line), prorating to the middle of the month that it is placed into service as a rental.
Any costs associated with the mortgage are depreciated over the period of the mortgage and there’s some controversy over what to do when you pay the mortgage off early or refinance.
Any other closing costs are depreciated over 27.5 years.
Repairs are deductible in the year you make them. Improvements should be depreciated. And you want to depreciate them because they increase your basis in the property.
Your basis in the property? Yeah, all that depreciation you took? When you sell it you have to pay taxes on it all!
Figure, eh, I’ll just pay the taxes as I go and not face a huge tax bill the year I sell? No soup for you! You have to pay taxes on any depreciation that was allowed… whether or not you previously took the deduction.
And the depreciation for improvements depends on what it is. A roof is 27.5 years… starting with the date the work was completed. Carpet is 5 years if it is tacked down or 27.5 years if it is glued down. A fence is 15 years. Appliances are 5 years. An outbuilding like a shed is 15 years.
Deciding what is maintenance vs what is an improvement is a judgment call sometimes. It’s financially better to call it an improvement but also more work.
Keeping the records on all of this is also a PITA. It’s helpful to use one software the whole time that will track it all for you.
Ultimately if what you do is defensible then the IRS isn’t likely to come to blows with you over whether you depreciated the roof on the shed for 15 years (shed) or 27.5 years (roof) so long as you’re consistent from one year to the next and there’s some reasonable basis for what you did. But it’s a PITA. So just keep that in mind.