What should a monthly property report include?

Income, operating expenses, net operating income, debt service and cash flow, plus occupancy, unpaid rent, leases ending soon and decisions needed.

Is the mortgage payment an operating expense?

No. In the report, the loan payment goes below net operating income as debt service, split into interest and principal.

Where do capital improvements go in an owner report?

Below cash flow on their own line, kept apart from repairs, so a large one-time project does not distort normal operating results.

Monthly Owner Report: What to Include

A good monthly owner report fits on one page per property: income, operating expenses, net operating income, debt payments and cash flow, then occupancy, unpaid rent, and the few events that need a decision. Even if you are the only owner, writing it every month is what turns a pile of bank lines into a business you can steer.

Why write a report to yourself

Your bank balance mixes everything together: rent, deposits, a tax payment from last quarter, a roof you are saving for. A report separates what the building earned from what you happened to spend or hold this month. It also gives partners, lenders and your tax preparer the same picture you see, and a year of them shows trends no single month can.

The parts of the report

Income: rent collected, then other income such as fees, laundry and parking, each on its own line.
Operating expenses: in the same categories you use for taxes, with repairs kept apart from improvements.
Net operating income (NOI): income minus operating expenses.
Debt service: the loan payment split into interest and principal.
Cash flow: NOI minus debt service, then any money set aside for reserves.
Operations: occupancy, unpaid rent, leases ending in 90 days, open repairs.
Decisions needed: two or three lines, no more.

Keep improvements out of operating expenses. The IRS tells rental owners in Publication 527 to separate the costs of repairs and improvements, because improvements are generally recovered over years through depreciation. Show any improvement spending below cash flow on its own line, so one new roof does not make a normal month look like a disaster.

A sample report

Example a made-up 12 unit building, October 2026. Rent collected $13,200, late fees $50 and laundry $180 give total income of $13,430. Operating expenses are $4,690. NOI is $13,430 - $4,690 = $8,740. The loan payment of $4,300 ($3,100 interest and $1,200 principal) leaves $4,440, and after $400 to reserves, $4,040 is cash to the owner.

Line	October 2026
Rent collected	$13,200
Late fees	$50
Laundry	$180
Total income	$13,430
Repairs	$1,240
Utilities	$1,050
Insurance	$620
Property taxes	$1,400
Cleaning and maintenance	$380
Total operating expenses	$4,690
Net operating income	$8,740
Loan interest	$3,100
Loan principal	$1,200
Cash flow after debt	$4,440
To reserves	$400
Cash to owner	$4,040

Operations for the same month: 11 of 12 units occupied (91.7%). Rent billed was $13,800 and $600 is unpaid, a delinquency rate of 4.3%. Two leases end in the next 90 days. Decisions needed: renewal rent for unit 5, and whether to replace or repair the laundry room dryer.

Add comparisons, not more lines

A number alone says little. Add two columns next to the month: the same month last year and the year to date against your budget. If insurance jumped or repairs doubled, the comparison shows it at a glance. Resist adding detail rows; a reader should get the whole picture in a minute.

Measure	This month	Same month last year	Budget
Total income	$13,430	fill in	fill in
Operating expenses	$4,690	fill in	fill in
NOI	$8,740	fill in	fill in
Occupancy	91.7%	fill in	fill in

If you own several properties

Write one page per property, then a summary page with one row per property: income, NOI, cash flow, occupancy and unpaid rent. When each property is its own LLC with its own bank account, each page comes straight from that company's books and nothing needs to be split by hand. Never let one building's expenses land in another building's report; it hides problems and complicates taxes.

Make it a habit

Write it on the same day each month, after the books are closed.
Use the same layout every month so changes stand out.
Save each month as a file named by property and month.
Read the last three together each quarter.

The reserves line deserves a rule of its own. Decide a fixed amount per unit per month to set aside for roofs, boilers, parking lots and appliances, move it to a separate savings account on report day, and show the running reserve balance at the bottom of the page. When a big repair comes, the report shows it was planned for, and the month still reads as normal.

Finally, write the decisions section as questions with a date: "Renew unit 5 at what rent? Decide by November 15." A report that ends with clear decisions gets acted on; one that ends with a total gets filed.

How DoorKeeping helps

In DoorKeeping each property has its own books, with expense accounts mapped to Schedule E lines, so the income and expense lines of the report come from its profit and loss. You can ask Claude or ChatGPT for a property's profit and loss or net operating income, or the rent roll as of a date, and see every property together in the web app. Owner statements come from the same books, ready to send.

Sources

IRS, Publication 527, Residential Rental Property, read Oct 29, 2026

Questions

What should a monthly property report include?: Income, operating expenses, net operating income, debt service and cash flow, plus occupancy, unpaid rent, leases ending soon and decisions needed.
Is the mortgage payment an operating expense?: No. In the report, the loan payment goes below net operating income as debt service, split into interest and principal.
Where do capital improvements go in an owner report?: Below cash flow on their own line, kept apart from repairs, so a large one-time project does not distort normal operating results.