The date column kept sliding off the right edge of the printout, so I was on my third pass at the income summary before I had even opened the return. That is basement rental income taxes in one sentence: most of the work happens with the paper, not the software. E-file did not turn me into a landlord overnight, but it did make the reporting side of DIY tax filing something I could handle between library shifts instead of paying an accountant by the hour.
Before I log in, the receipts get split into two piles. One pile is everything that touched only the basement: the new lock on the tenant's door, the plumber who cleared the basement sink, the fee for running a background check. The other pile is everything that touched the whole house at once. The first pile is plain bookkeeping. The second is where a rental return earns its reputation for being a headache.
Two Stacks of Receipts Before the Login
Gathering the paper is the step no software prompt reminds you to take. We had already drawn up a rental agreement for the basement tenant through an online form library, so the lease terms, the deposit, and the monthly rent were never in doubt. What I had to chase were the stray receipts: the paint, the light bulbs, the egress window that made the space legal to rent in the first place. Half of them lived in a box that had not been opened since the funeral, and it let off a dry, papery smell the second I pried the lid up.
E-file nudged me toward a 1099-K, the form third-party payment apps send once your receipts pass a certain point. Our tenant pays by plain bank transfer, so nothing arrived in the mail, and that changes nothing about what gets reported. You still write down every rent check whether a form shows up or not. Where the 1099-K reporting threshold sits is a rabbit hole for another night; the working rule is simpler, which is to log each payment the day it lands.
Which Receipts Belong to the Tenant?
Rental income lands on IRS Schedule E, which in circulation-desk terms is the specialized bibliography for money that comes in on the side. Typing the figures into the online fields was the easy part. Deciding what belonged on which line was the reference question. I worked it the way I would work a patron who will not leave the desk until we track down one specific 1920s obituary: slow, patient, one source at a time.
Anything tied directly to the rental is worth logging, and the software does the arithmetic once you feed it. The judgment call is knowing which receipt belongs to the tenant and which belongs to the house. Every item I claimed had a matching line in a plain spreadsheet, backed by a receipt I could actually put my hand on. Anyone who has been through filing a final tax return for a deceased parent already knows the lesson: the paper trail outlasts the memory of it.
Shared Costs Are Where the Rental Math Slows Down
A basement inside a bigger house means some costs get shared. The furnace heats every room, the roof covers all of it, and the property taxes do not care where the tenant sleeps. When the return asked me to untangle that overlap, it pointed toward depreciation, the part of a rental return I would cheerfully hand to someone else if the quote were not so steep. The software wanted the rental's share of the square footage, so I got out the tape measure and did the geometry myself rather than guess at it.
My neighbor Myrna, two houses down, has kept every utility bill she has received since 1987, which I used to file under quirk and now file under system. She is the one who reminded me that a shared cost still needs a receipt behind it, same as a direct one. So the whole-house numbers got the same handling as the basement-only ones: logged, matched, and put where I could find them again. Nothing clever about it. Just the discipline of not throwing paper away.
Letting the State Return Ride on the Federal One
Indiana keeps its individual income tax flat, which makes the state side feel less like a riddle than the federal one. Once the federal Schedule E was finished, the software carried those numbers straight into the state return, so I was not retyping decimals I was already tired of reading. County taxes needed a second look, since those shift depending on where in the suburbs you actually live. Indiana is fussy about its forms, the same way it was fussy when I sorted out how to file a transfer on death deed, so I made sure the rental income was classified the way the software expected.
DIY Filing Without a CPA on Speed Dial
Paying a new accountant by the hour to point at boxes was never going to happen. When I checked whether my job's benefits covered any of this, the answer was that they reach as far as employment disputes and no further, nothing about a parent's estate or a basement tenant. So the kitchen table it was, on an afternoon I would rather have spent out on the Fall Creek Parkway trail. The printer fought me the whole way, three passes before the income summary stopped guillotining the date column, which is the tax-season cousin of a jammed hold-slip printer at the reference desk.
Clicking submit on the federal and state returns felt like the last keystroke of a long research request, not a leap of faith, because I had built the system I was following. I am not a tax advisor, and I have zero accounting training, so if your setup runs to several properties or a real business structure, talk to a professional before copying anything I did. Get a number wrong and the stakes are genuine. For one librarian keeping her mother in the house on a single basement tenant's rent, doing it at the table with the paper sorted first was the honest call.