Year-end in property management is not a December problem. It is a November problem that becomes visible in January.

Most of what makes the January filing period difficult was fixable in November: a missing W-9, a vendor payment coded to the wrong entity, an owner whose annual summary will not agree with the form you are about to send them. By the time you notice, the leverage is gone and the deadline is three weeks out.

This is the sequence that works, staged across the three months it actually occupies.

Why a Separate Calendar

The monthly close runs twelve times a year and is well understood. Year-end adds a different kind of work on top of it.

Three things make it distinct.

• Deadlines you do not set. A monthly close that runs late is an internal problem. An information return deadline is not.

• Work that can only be done once. You cannot collect a W-9 retroactively for a vendor who has stopped answering. You cannot recode a year of expenses in the week before filing.

• Outputs that go to third parties. Forms to the IRS, statements to owners, packages to their accountants. Each is read by someone who did not watch you produce it.

November: Fix What Is Still Fixable

The month that decides whether January is routine.

Week 1: Audit the W-9 file.
Every payee who has received a payment this year, against the W-9 on file. Legal name, TIN and federal tax classification. Anything missing gets chased now, while the vendor is still working for you and still wants to be paid.

Separate out the ones where the name and classification do not look consistent, because those are the filings most likely to generate a mismatch notice later.

Week 2: Run the payment totals.
Cumulative payments per payee, across all properties and all entities, against the reporting threshold for the year you are filing for. Two reasons to do it now rather than in January. It tells you which W-9 gaps actually matter. And it surfaces payees sitting just below the threshold, where a December payment will tip them over.

The reporting threshold for certain 1099-MISC and 1099-NEC payments increased from $600 to $2,000 for payments made in 2026, so a process built on the previous figure will produce the wrong list. The detail on thresholds, forms and deadlines is worth checking against the year you are filing for.

Week 3: Review expense coding.
Specifically the repair versus improvement split, and anything sitting in a suspense or miscellaneous account. Recoding in November is housekeeping. Recoding in February, after owner statements have gone out, means reissuing them.

Week 4: Warn the owners.
A short note to every owner: when their annual summary arrives, when their form arrives, and that the two documents will show different numbers by design. This is the cheapest thing on the entire calendar and it prevents most of the February inbound.

December: Close It Properly

Weeks 1 to 3: Ordinary operations, with two additions.

Clear anything unresolved rather than carrying it into the new year. Unapplied receipts, stale reconciling items, negative owner balances, deposits pending disposition. Each of these is worse on 2 January than it is now.

Confirm the year-end cutoff with anyone who supplies you with invoices. A December service paid in January can have different accounting and reporting consequences depending on the owner's accounting method and the type of payment, so the treatment should be determined before the year closes.

Week 4: The December cutoff carries further than the others.

Every other month, an invoice that misses the cutoff moves to the following period and nobody minds much. In December, year-end transactions can affect both the accounting period and tax reporting, depending on the accounting method and the type of payment. The treatment should be decided before the year closes rather than reconstructed afterward.

Decide the policy in advance and apply it to everyone. The cutoff and sign-off sequence works the same way here, with higher stakes attached.

Two December-specific items worth naming:

• Rent received in the first days of January generally falls into the new year for a cash-basis owner, even though it relates to December. Note it rather than discovering it in February.

• A distribution paid in early January is a January payment. If an owner expects their December distribution in December, the calendar needs to say so.

January: Produce, Verify, Issue

The month with the least room for discovery.

Week 1: Close December.
Standard close, plus the trust reconciliation if you hold client funds. Nothing downstream is meaningful until the December position is final. The trust close runs on its own obligation regardless of how the corporate close is going.

Week 2: Produce the annual summaries.
From the same ledger as the twelve monthly statements, so the totals agree by construction rather than by luck. Gross rent, fees, expenses by category, reserve movement, total distributed.

Then check each one against the figure you are about to report. They will differ, and the difference should be explainable in a sentence. Where it is not, something is wrong and this is the week to find out.

Week 3: Verify before you file.
Payee names and TINs against the W-9s. Amounts against the ledger. Entity attribution, because a form issued to an individual when the property is held in an LLC is a correction, not an explanation.

Week 4: Issue.
Forms, annual summaries and a short reconciliation note together, in the same week. Sending the form alone can generate questions when the owner does not understand why its amount differs from the annual summary. The reconciliation between the two documents covers what that note should say.

Deadlines differ by form and by filing method, and electronic filing requirements have changed in recent years. Confirm the dates and the filing method that apply to you against the current IRS instructions rather than last year's process.

February and March: The Tail

Two things remain.

1. The second filing window. Recipient statements and the IRS copy are not always due on the same date, and paper and electronic filing have different deadlines. A calendar that treats January as the end of the process will miss one of them.

2. Corrections. An error found after filing is corrected, not explained. Where a form was issued to the wrong entity, or an amount was wrong, the correction process has its own requirements and its own timing.

Both are worth having in the calendar as scheduled items rather than as things that happen to you.

What Actually Slips

In rough order of how much trouble each causes.

• The W-9 that was never collected. Chased in January from a vendor who finished the job in March and has no reason to reply.

• Payments aggregated wrongly. Totals run per property rather than per payee across the portfolio, so a vendor who worked on six properties appears six times below the threshold instead of once above it.

• The annual summary produced separately from the monthlies. Its figures cannot be traced back to the twelve statements the owner already holds, making the difference harder to explain and reconcile.

• Entity attribution. The form issued to the person rather than the LLC that holds title.

• December coding left until February. By which point owner statements have gone out and correcting means reissuing them.

Building It Into Next Year

The version of this calendar that works is the one that changes what happens in March.

Three things worth carrying back into ordinary operations:

1. W-9 at onboarding. The single highest-leverage change on this page. Collected before the first payment, it is a routine form. Collected in January, it is a negotiation. The same applies to owner onboarding, where entity details and tax information belong in the first thirty days.

2. Payee totals visible monthly. If you can see cumulative payments per payee at any point in the year, November's week 2 becomes a report rather than an exercise.

3. One ledger behind both documents. Where the annual summary and the reported figure come from the same records, the reconciliation is arithmetic rather than investigation.

Frequently Asked Questions

1. When should year-end preparation start for a property management company?
November, not December. The work that can only be done while vendors and owners are still responsive, meaning W-9 collection and expense recoding, has to happen before the year closes. December is for closing properly and January is for producing and issuing.

2. What should be done in November for year-end?
Audit the W-9 file against every payee who received a payment during the year, run cumulative payment totals per payee against the current reporting threshold, review expense coding including the repair versus improvement split, and tell owners what to expect in January.

3. Why does the December cutoff matter more than other months?
Because year-end transactions can affect both the accounting period and tax reporting, depending on the accounting method and the type of payment. That treatment should be decided before the year closes rather than reconstructed afterward.

4. What should be sent to owners in January?
The information return, an annual summary produced from the same ledger as the monthly statements, and a short note reconciling the two figures. Sending the form on its own is a common cause of queries from owners and their accountants.

5. What happens if an error is found after filing?
It is corrected rather than explained. Correction requirements and timing depend on the type of error and the form involved, and the position should be confirmed against the current IRS instructions or with your accountant.

6. How do you stop the same problems recurring next year?
Collect W-9s at vendor onboarding rather than at year end, make cumulative payee totals visible during the year rather than assembling them in November, and produce the annual summary from the same ledger as the monthly statements so the two cannot disagree.

Three Months, Not Three Weeks

The teams that find January uneventful are not faster. They did the November work.

Nothing on this calendar is difficult. All of it is sequenced, and the sequence only works in one direction: the things that depend on other people happen while those people are still paying attention.

RIOO is a property management platform built on NetSuite, with leasing and property accounting in the same underlying system.

Note: Guidance in this article is general and does not constitute tax advice. Reporting thresholds, forms, filing methods, deadlines and correction procedures change and depend on your arrangements and entity structure. Confirm the requirements that apply to you against the current IRS instructions and with your accountant before filing season.