Short answer: For a portfolio with a December 31 fiscal year, annual budget preparation commonly begins in July and runs through January. Teams build drafts in August and September, review with owners in October and November, and load the approved budget in December. The actual submission deadline is set by each management agreement, not by an industry-wide date.

Budgeting is often thought of as an autumn task. For many December 31 portfolios, though, treating it as a six-month project that starts in July leaves enough time for property-level builds, consolidation, owner review and approval. The deadline comes from the management agreement, and working backward from that date often puts the kickoff in midsummer.

This guide covers timing: what happens each month, who owns it, and what each stage should produce. It also shows how to turn the budget clause in a management agreement into a real submission date.

Must Read: How to Manage Budget vs. Actual Variance Reporting for Real Estate Finance Teams

Table of Contents

1. Property Management Budget Calendar at a Glance

2. When Are Property Management Budgets Due? Check the Management Agreement

3. The Budget Calendar, Month by Month

4. Commercial Portfolios: The CAM Estimate Deadline

5. Starting the Budget in October? What to Prioritize

6. Non-Calendar Fiscal Years

7. Budget Season Checklist

8. Common Mistakes

9. Frequently Asked Questions

Property Management Budget Calendar at a Glance

For a December 31 fiscal year, the practical budgeting cycle typically runs from July through January. Each property's management agreement determines the actual submission and approval deadlines. Portfolios with August or September deadlines need to start one to two months earlier than this calendar shows. For June 30 year-ends, see the section on non-calendar fiscal years.

When Are Property Management Budgets Due? Check the Management Agreement

There is no single industry deadline. Management agreements set the date, and the published examples range from fixed calendar dates to a set number of days before or after a fiscal year boundary.

These deadlines are examples from published agreements, not an industry standard.

A property management agreement filed with the SEC by KBS Legacy Partners sets November 1 each year as the deadline for both the operating and capital budgets. It also says that if no budget has been approved when the fiscal year starts, each month runs on the same month of the last approved budget until approval.

Approval terms vary as much as deadlines:

• Deemed approval: Some agreements treat silence as approval. For example, the budget counts as approved if the owner doesn't object in writing within 30 days of delivery.

• Spending freeze: Others work the opposite way. A medical office building agreement bars the manager from spending beyond the prior year's approved amounts until the new budget is approved in writing.

• Fixed uplift: The Housing Opportunities Commission of Montgomery County's form property management agreement continues the expired approved budget plus 2% until a new budget is approved.

Here is how that works backward from a November 1 deadline. If the owner review includes two rounds of roughly two weeks each, and property managers need about a month to build the draft, the property-level build falls in August and the kickoff in July. Portfolios with 120- or 150-day clauses need to start earlier.

Practical step: Before July, pull every active management agreement and record three things per owner: the submission deadline, the approval window (including any deemed-approval rule), and the fallback if nothing is approved. Portfolio-wide, the earliest deadline sets your kickoff date.

The Budget Calendar, Month by Month

July: Kickoff

Finance issues the budget calendar with property-level due dates and a single assumptions memo so every property uses the same inputs: wage and benefit increases, management fee rates, utility rate assumptions and general inflation. Templates go out with six months of year-to-date actuals and the prior-year actuals already filled in.

Output: A calendar every property manager has acknowledged, and one shared set of assumptions.

August: Property-Level Build

Most of the property-level work happens this month.

• Revenue: Build rent from the rent roll lease by lease, not from last year's total. Apply renewal probabilities to each expiring lease, then market-rent assumptions, vacancy, concessions and other income. Lease expiration data drives much of this, so a clean critical lease date schedule saves time here.

• Controllable expenses: Property managers budget repairs, contract services, turnover, marketing and payroll line by line.

• Uncontrollable expenses: Request insurance indications from the broker and property tax estimates now rather than rolling last year's figures forward.

• Capital requests: Submit each capital request with a bid or estimate, and classify it correctly as capital or operating before it enters the budget. The rules for separating CapEx from OpEx apply to budgets as much as to actuals.

Output: A complete draft per property, with the assumptions written down.

September: Consolidation and the Current-Year Reforecast

Finance consolidates the drafts and regional managers do a first review. This is also the month to reforecast the current year using September year-to-date actuals plus a fourth-quarter forecast.

Budget, forecast and reforecast: what's the difference?
Budget: The approved financial plan for the upcoming year.
Forecast: The expected financial outcome based on current information.
Reforecast: An updated forecast for the current year that reflects actual results so far and any changed assumptions.

The reforecast gives a more current baseline for testing next year's assumptions than the original current-year budget. Comparing next year's budget only against an outdated plan can hide the trends owners will ask about.

If any owner has a 120-day clause, their budget is already due in early September.

Output: A consolidated first draft and a current-year reforecast for every property.

October: Owner and Asset Manager Review

Owners and asset managers review the drafts and send questions back. Questions often focus on revenue growth assumptions, significant expense increases, and capital projects without supporting bids. Keep a written log of every change and why it was made, so the reasoning is on record when January's variances start arriving.

Output: A revised budget with a change log.

November: Approval

November 1 and 60-day clauses fall here. Track each owner's approval window. Where silence counts as approval, record the date the window closed. Where it doesn't, escalate early rather than waiting for January.

Output: Approved or deemed-approved budgets, with dates recorded.

December: Load and Phase

Load the approved budget into the accounting system by property and GL account, spread across 12 months. Phasing matters: an annual total divided by 12 turns every seasonal cost, such as snow removal, turn season or the insurance renewal month, into a false variance. Loading the approved budget into the same accounting environment used for actuals allows budget-versus-actual analysis to begin with the January close rather than through a separate spreadsheet process.

Commercial portfolios also send operating expense and CAM estimate letters this month (see the next section).

Output: A monthly budget in the ledger, and estimate letters sent.

January: Go Live

The January close produces the first budget-versus-actual report. Any budget still unapproved runs under whatever fallback the agreement specifies.

Commercial Portfolios: The CAM Estimate Deadline

Commercial portfolios have a second deadline inside budget season. In many commercial leases, landlords estimate recoverable operating expenses at the start of the year, calculate each tenant's share, and bill monthly from those estimates. That means the CAM budget has to be final before January billing runs, not just approved in principle. Check each lease for any specific notice requirement.

The estimate also sets up next year's work. After year-end, landlords reconcile the estimates against actual expenses, commonly within 90 to 180 days depending on the lease. A realistic estimate now means a smaller true-up next spring.

Also Read: What Is CAM Reconciliation and How Does It Work in Commercial Leases

Starting the Budget in October? What to Prioritize

If you're reading this in October with nothing built, work in this order:

1. Check every contract deadline this week. Identify owners whose due date has passed or falls within 30 days, and contact them now with a delivery date.

2. Build revenue first. It is often one of the largest parts of the property budget and a major focus of owner review. Build it from the rent roll, not a percentage uplift.

3. Get broker and tax estimates immediately. Insurance and property tax can move significantly from year to year and vary by location, so use current broker and assessor figures rather than last year's numbers.

4. Use prior-year controllable lines as a starting draft, and flag them so reviewers know which lines were rebuilt and which weren't.

5. Don't skip capital. Unsupported capital requests are likely to trigger additional questions, revisions or deferrals during owner review.

Non-Calendar Fiscal Years

For a June 30 year-end, move every month in the calendar forward by six months: kickoff in January, build in February, owner review in April, and approval by May or June. Contract clauses shift too. The Montgomery County HOC form agreement requires budgets for June 30 year-end properties 210 days before year-end, compared with 150 days for December 31 properties. That puts the June 30 deadline in early December of the previous year.

Mixed portfolios with both year-ends run two budget seasons. Treat them as separate calendars with separate kickoffs.

Budget Season Checklist

• Every management agreement's submission deadline, approval window and fallback recorded before July

• Kickoff date set from the earliest owner deadline

• One assumptions memo issued to all properties

• Revenue built lease by lease from the rent roll

• Renewal assumptions tied to the lease expiration schedule

• Insurance indications and property tax estimates requested in August

• Every capital request has a bid and a capital/operating classification

• Current-year reforecast finished before owner review

• Change log kept through every review round

• Approval or deemed-approval date recorded per owner

• Budget loaded by property and GL account with monthly phasing

• CAM and operating expense estimate letters sent before January billing

Common Mistakes

• Starting from last year plus a percentage. It carries last year's errors forward and is hard to explain in owner review.

• Budgeting before reforecasting. Without a current-year reforecast, next year's budget is compared against an outdated plan and the real trend can stay hidden.

• Rolling insurance and tax forward. These lines are often among the most volatile and least controllable in the budget. Get estimates from the broker and assessor.

• Missing the contract deadline. A late budget can mean operating under a frozen prior-year budget, or under a deemed approval you didn't intend.

• Loading annual totals without phasing. Seasonal costs show up as variances month after month, which makes the variance report harder to trust.

• Capital requests without bids. They are more likely to be cut or deferred, and deferred work can turn into a larger repair later.

Frequently Asked Questions

1. When does property management budget season start?
For a December 31 fiscal year, budget preparation commonly begins in July. The right start date comes from working backward from the earliest owner deadline in your management agreements.

2. When are property management budgets due to owners?
The management agreement sets the deadline. Published examples range from 150 days before year-end (early August) to fixed dates such as November 1 or December 1.

3. What happens if the owner doesn't approve the budget by January 1?
The management agreement decides. Some agreements deem the budget approved after a set review period. Others freeze spending at prior-year levels, or continue the prior budget with a small increase until approval.

4. How long does the annual budget process take?
Typically four to six months from kickoff to loading, depending on portfolio size, the number of owners and the number of review rounds.

5. What should be ready before the owner review?
A lease-by-lease revenue build, line-item expenses, broker and tax estimates, capital requests with bids, a current-year reforecast and written assumptions.

6. When should commercial landlords send CAM estimates?
Before January billing runs, so monthly estimates start with the new year. Check each lease for any specific notice requirement.

7. How does a June 30 fiscal year change the budget calendar?
Everything moves forward by six months: kickoff in January, owner review in April, and approval by May or June, subject to each agreement's deadline.

8. Should the current-year reforecast come before the budget?
Yes. The reforecast is a more current baseline for testing next year's assumptions, so finish it before owner review.

Conclusion

For a December 31 fiscal year, property management budget preparation commonly begins in July and runs through January, but the management agreement determines the actual submission and approval deadline. The most reliable process is to work backward from that deadline, build revenue from the rent roll, update the current-year reforecast, get current insurance and tax estimates, document owner revisions, and load the approved budget with monthly phasing before the new year begins.

Note: This article is general information about budgeting practice, not legal or accounting advice. Budget deadlines and approval terms depend on the specific wording of each management agreement and lease.