Rental Property Bookkeeping for Small Landlords

If you own one rental home, or a handful, the bookkeeping can feel like an afterthought. Rent arrives, a few bills go out, and once a year you dig through statements to fill in a tax form. That works until the year a tenant disputes a deposit deduction, a roof repair raises the question of what counts as an improvement, or you want to know which home is actually earning its keep.

Good rental books aren’t complicated. They come down to tracking each home on its own, keeping deposits apart from rent, sorting expenses the way the tax form does, and spending a little time each month. This guide walks through each.

Track each home separately

The IRS asks for income and expenses per property. Schedule E, which landlords use to report rental income, has columns A, B and C for up to three properties on each page, with separate lines for rents received and each type of expense (the 2025 form; see Schedule E). If your records lump all your homes together, you’ll be dividing them up at tax time anyway.

Tracking per home also answers the questions that matter for running the business: which home has the most vacancy, which one costs the most to maintain, and whether that older house is worth keeping.

In practice, tag every transaction with the home it belongs to. Rent from 12 Oak Street goes to Oak Street. The water bill for the house on Elm goes to Elm. Expenses that serve all your homes, like landlord software or a single insurance policy covering several properties, are split (more on that below).

If you rent rooms within a home, it’s useful to track income per room too, so you can see which rooms fill and which sit empty.

Rent, deposits and advance rent

Not every payment from a tenant is income.

Rent is income when you receive it.
Advance rent is also income in the year you receive it, whatever period it covers. If a tenant pays January’s rent in late December, it’s income in December’s tax year.
A security deposit you plan to return isn’t income when you receive it. It’s money you are holding that belongs to the tenant, so record it as a liability. If you later keep part of it because the tenant damaged the home or left owing rent, the amount you keep becomes income then.
A deposit to be used as the final month’s rent is advance rent, so it’s income when received.

These rules come from IRS Publication 527 (2025 edition). Keeping deposits in their own account, or at least clearly labeled, makes it easy to show what you hold for each tenant.

Sort expenses by Schedule E line

The simplest way to make tax time easy is to use the tax form’s categories as your expense categories. On the 2025 Schedule E, Part I, the expense lines are:

5 Advertising
6 Auto and travel
7 Cleaning and maintenance
8 Commissions
9 Insurance
10 Legal and other professional fees
11 Management fees
12 Mortgage interest paid to banks
13 Other interest
14 Repairs
15 Supplies
16 Taxes
17 Utilities
18 Depreciation expense or depletion
19 Other

Line 3 is rents received, and line 20 totals the expenses.

A few things trip landlords up:

Mortgage payments aren’t one expense. Only the interest goes on line 12. The principal repays the loan, and the escrow part pays property taxes (line 16) and insurance (line 9) when the lender pays them.
Repairs and improvements differ. Fixing a leaking faucet is a repair. A new roof or a kitchen remodel is generally an improvement that you depreciate over time rather than deduct at once. When a job is large, ask your tax preparer how to treat it.
Depreciation is its own line. Residential rental property is depreciated straight line over 27.5 years, and land isn’t depreciable, so only the building’s share of the purchase price counts (Publication 946, 2025).

Splitting shared bills

Some expenses cover more than one home or room. There are three common ways to split them.

Evenly. A $600 yearly umbrella policy covering three homes is $200 each.

By percentage. If one home is much larger, you might split a shared expense 50/30/20.

By days occupied. For a utility bill in a home rented by the room, you can split by how many days each room was let. Say a $300 electric bill covers a 30-day month. Room 1 was rented all 30 days, room 2 for 20 days and room 3 for 10. That’s 60 room-days, so room 1 gets $150, room 2 gets $100 and room 3 gets $50.

Whatever method you choose, apply it consistently and keep the arithmetic to the cent so the pieces add up to the bill. If $100 is split three ways, one share is $33.34 and the other two are $33.33.

A monthly routine

An hour a month is enough for most small landlords.

Record rent received for each home and tenant, and note anyone who is late or paid part.
Record deposits received or returned, with any deductions and the reasons.
Record and categorize expenses, tagging each to a home and a Schedule E line.
Split shared expenses across homes or rooms.
Match the mortgage payment into principal, interest and escrow.
Reconcile your records against the bank statement.
Review each home: income, expenses and net for the month and the year so far.

Keep receipts and invoices for every expense, and the closing documents for each home for as long as you own it and for the record-keeping period after you sell it.

How Kemback fits

Rental Houses, part of Kemback Business, is built around this routine. It tracks each home and room, records rent as paid, partial, late or upcoming and matches each payment to the deposit in your own bank account, and holds security deposits as a liability with deductions and refunds recorded. Kemback never takes rent itself; tenants pay you directly. Expenses carry their Schedule E line, recurring expenses are matched to real payments, and a shared expense can be split evenly, by percentage or by days occupied, always to the cent. Mortgages are amortized into principal, interest and escrow, and reports show income, expenses, net and occupancy per home, plus Schedule E lines per home for a tax year as CSV. Depreciation is entered by hand. See rental property tracking and pricing.

This post is general information, not tax or legal advice. Tax rules change over time and deposit rules vary by state; check with a qualified tax professional or attorney for your situation.

#rental properties #landlord bookkeeping #schedule e

This article is general information, not financial, tax or legal advice. For decisions about your situation, talk to a qualified professional.