A property management office runs your building on a calendar. The 1099s go out the last week of January, the furnace tech is booked in September before the rush, the renewal letter leaves 90 days ahead of expiration, and none of it depends on anyone having a good memory. Most self-managing landlords can do the same work; they do it at the wrong times, after the deadline, in the season when every vendor is already booked.
What follows is the operating rhythm for a 2-10 unit portfolio, written as twelve months instead of one undated wall of bullets. I run a version of it on my own units from two time zones away. Copy it, replace the brackets with your dates and dollar amounts, and run the same year every year.
The checklist, January through December
Everything below fits on two printed pages. Dated items get a [DATE], dollar items get an [AMOUNT], and three items a month is the deliberate ceiling.
Annual checklist, month by month
How to use it
Keep one copy per portfolio, not per property; at this size a single calendar with a unit column beats ten copies of the same list. Fill every bracket in one sitting: insurance renewal dates from the declaration pages, lease expirations from the rent roll, water heater ages from your last set of inspection photos. If the lease dates are scattered across documents, the free rent roll template puts them in one place first. An unfilled bracket is a task; a filled one is a date.
Two months point elsewhere on purpose. December's close and January's CPA handoff are covered item by item in the year-end tax prep checklist, so this calendar schedules that work rather than repeating it. The deeper jobs each have their own guide too: the January rent review math is in how much to raise rent, the contractor filings in 1099-NEC for landlords (the form itself lives at irs.gov), and the September letters in the lease renewal letter template. Beneath this annual layer there is a monthly one, the 10-minute monthly close; and if you are building the whole operation from nothing, start with the complete self-managing system and come back here for the dates.
The two months that carry the year
September earns more than any other month on the list. A renewal decision made 90 days out gives a good tenant time to say yes to a measured increase and gives you a full leasing runway if the answer is no; the same decision made 30 days out usually lands on a vacant unit in the worst season to fill one. Say the unit rents for $1,600: one vacant month plus a $400 make-ready is $2,000, the price of deciding in November what should have been decided in September.
January compounds. A rent review that finds a $50 gap and closes it is worth $600 a year; skipped for three years it is $1,800, and the next increase gets anchored to the low number besides. The 1099 deadline has teeth of its own, with per-form penalties that grow the longer you wait. The expensive months are the quiet ones.
Mistakes that defeat the checklist
- Reading it once in January. A calendar consulted annually is a wall of bullets with extra steps. The point is that the furnace booking happens in September and the gutter cleaning in October, each prompted in its own month.
- Letting the tenant set the renewal timeline. Waiting until someone asks about next year hands the schedule to the other side of the table. July's lease-horizon list exists so September's letters are decisions, not reactions.
- Skipping the May inspection because rent arrives on time. On-time rent says nothing about the water heater, the bathroom caulk, or the slow leak under the kitchen sink. Entry notice varies by state, so give written notice per your lease and read your state's statute, not a forum thread.
- Keeping the dates in your head. A checklist you have to remember to check inherits every weakness it was supposed to fix. The brackets need to live somewhere that surfaces them on schedule.
Where the dates should live
Every dated bracket on this list, the insurance renewal, the rental license, the furnace service, the lease expirations, is a deadline a spreadsheet will hold but never mention. That gap is why I built rents.ai: records for insurance, property tax, and licenses create their own renewal reminders with lead days you choose, leases get a countdown, and recurring reminders (annual, semiannual, quarterly) come to your own phone by SMS. The limits are real: it reminds you, not your tenants, and it knows nothing about your state's notice rules, so the statute reading stays your job. What changes is that the calendar above stops depending on memory, which is the one failure this page exists to remove.
The tax items here (1099-NEC, Schedule E, depreciation) are scheduling prompts to organize your year for your CPA, not tax advice, and the inspection and notice items are not legal advice. Deadlines and entry rules vary by state; confirm dates with your CPA and your state's statute.