real estate accounting and record keeping

In short

A friend of mine once kept every rental receipt in a shoebox, and come April he spent a whole weekend sorting them by the light of a kitchen lamp. You can spare yourself that weekend. Open a separate bank account for each property or for the whole rental business, and run every dollar of rent and every repair through it. Keep a simple ledger, a running list of money in and money out, and update it at least once a month. Hold on to receipts, leases, and closing papers for as long as the IRS says they matter. Set aside the records that show what you paid for each property, because those will count when you sell. It is not glamorous work, but it pays you back.

The whole of it

What it is

I once watched a landlord lose a deduction he had honestly earned, and the reason was plain. He could not show the paper. Real estate accounting is just the habit of writing down what comes in and what goes out for a property, so the story of the money can be told later and told correctly. Record keeping is the other half. It means saving the proof behind each number, such as the lease, the invoice, the bank statement, and the settlement sheet from the day the property was bought.

If you are holding a rental, or planning to, you are running a small business whether it feels like one or not. The IRS treats rental income as something to report, and it lets the owner subtract ordinary costs of running the place. The IRS publication on rental income and expenses, Publication 527, Residential Rental Property, walks through what counts. Good books make that subtraction easy and honest. Bad books make it a guessing game.

How it works

A neighbor of mine, a retired teacher, told me the best thing she ever did was give her rental its own checking account. Rent goes in. Mortgage, taxes, insurance, and repairs go out. Nothing personal touches it. That one choice means the bank statement already tells most of the story.

From there, a ledger does the sorting. A spreadsheet works fine, and so does bookkeeping software. Each line holds a date, an amount, who was paid or who paid, and a category. Common categories are rent received, mortgage interest, property tax, insurance, repairs, utilities, advertising, and management fees. Month by month, the ledger grows, and nothing piles up for the end of the year.

Then there is the difference between a repair and an improvement, and it matters a good deal. A repair keeps the property in working shape, like patching a leaking pipe. An improvement makes it better or longer lived, like replacing the whole roof. Repairs can generally be deducted in the year they are paid. Improvements usually have to be depreciated, which means the owner spreads the cost over many years instead of taking it all at once. Publication 527 explains the line between the two.

Depreciation deserves a word. It is a yearly deduction that reflects the building wearing out over time. For a residential rental, the IRS sets the recovery period, and the owner tracks the building's cost basis to figure the yearly amount. Cost basis is, in plain terms, what the owner paid plus certain closing costs and improvements. Keep that number current. It will matter on the day of the sale.

The numbers, and where to find yours

You have probably wondered how long to keep all this paper. The IRS gives its guidance in Publication 583, Starting a Business and Keeping Records, and in its page on how long to keep records. The general period tied to the statute of limitations is the current figure, which the official source publishes each year years from the date a return is filed, though some situations stretch longer. For a property, the IRS says to keep records on the purchase and on improvements until the period of limitations runs out for the year the property is sold. That can be a very long time, so the settlement sheet and the improvement receipts are worth guarding.

Other numbers shift from year to year, and I will not guess at them. The standard mileage rate for trips to your rental is set by the IRS each year, and the current figure is the current figure, which the official source publishes each year cents a mile. The threshold for reporting payments to a contractor on Form 1099-NEC is the current figure, which the official source publishes each year. The depreciation recovery period for a residential rental is the current figure, which the official source publishes each year years. Look up each one on the IRS site, where the figure is posted with its date.

Your own numbers live in your own papers. Your purchase price and closing costs sit on the settlement statement. Your yearly mortgage interest sits on Form 1098 from the lender. Your rent received sits in your bank deposits. Pull those three first, because the rest builds on them.

A worked example

Let me tell you about Marcus, a man I will invent so the arithmetic has a face. Marcus bought a small duplex and rents one side. He keeps one bank account for it and a simple spreadsheet. In a single year, his tenant pays $1,400 a month in rent. Twelve months at $1,400 a month is $16,800 in rent received.

His costs for the year come to this. Mortgage interest on his Form 1098 is $5,200. Property tax is $2,100. Insurance is $900. A plumber fixed a burst pipe for $450, which is a repair he can deduct this year. He also paid $3,000 to replace the water heater with a new one, and that is an improvement, so he will depreciate it instead of deducting it all at once.

Add the deductible costs for the year. $5,200 plus $2,100 plus $900 plus $450 is $8,650. Now subtract that from the rent. $16,800 minus $8,650 is $8,150. That is his net rental income before depreciation. The building's yearly depreciation then lowers it further, and Marcus works that figure from his cost basis and the recovery period on the IRS tables.

Notice what made this easy. Every number came from a bank statement, a bill, or a Form 1098. Marcus did not hunt for anything. When he sells someday, he will add the $3,000 water heater to his basis, and he will already have the receipt. Small habits, large reward.

Where it goes wrong

I have seen good people stumble in a few familiar places, and none of it comes from carelessness of heart. The first is mixing money. When the rent lands in a personal account alongside groceries and gas, sorting it later is a headache and invites mistakes. The second is losing the paper. A deduction with no receipt behind it is hard to defend if the IRS asks.

Another trouble is treating an improvement like a repair. Deducting a new roof all at once when the rules call for depreciation can cause a correction later. The borrower who forgets to track basis also pays for it at sale time, because a missing improvement means a higher taxable gain than there should have been.

Forgetting the contractors is another trap. A payer who hires a handyman may have to file an information return, and the IRS explains who must file and when in the instructions for Form 1099-NEC. Late catch up is possible, but it is easier to track as you go.

Then there is the personal use problem. If an owner stays in the property part of the year, the costs must be split between rental and personal days, and the IRS sets rules for that split. Guessing here is risky. Keep a calendar of who used the place and when.

Last, and quietly the most common, is waiting. Records kept in real time are cheap. Records rebuilt in April cost a weekend and some peace of mind. Do not wait.

Questions to answer before you leave this page

Have you opened a bank account that holds only your rental money, or is rent still landing beside everything else? Do you have a ledger, even a plain spreadsheet, with a date, an amount, and a category on every line? Where is your settlement statement from the purchase, and could you put your hand on it tonight? Can you tell, for each cost this year, whether it was a repair or an improvement? Have you saved the receipts for anything that adds to your basis, like a new roof or a water heater? Do you know which contractors you paid enough to need a Form 1099-NEC, and have you collected their details? Have you looked up the current mileage rate and recovery period on the IRS site? And if you sold tomorrow, could you show every number that proves what you paid and what you spent since?