STR Placed in Service Year-End Timeline (2026)

The single most common way a short-term rental tax strategy fails in December is not material participation. It is the placed in service date.

Depreciation begins when property is placed in service, which means ready and available for its specifically assigned function. Not when you closed. Not when you paid for it. When it was ready to rent.

An investor who closes December 12 and takes their first booking in February has no depreciation deduction for the closing year at all.

What Placed in Service Actually Means

Treasury Regulation Sec. 1.167(a)-11(e)(1)(i) provides that property is placed in service when it is first placed in a condition or state of readiness and availability for a specifically assigned function.

For a rental property, that means the property is ready and available to be rented. It does not require that a tenant or guest actually occupy it.

This distinction matters enormously in December. A property that is fully furnished, licensed, listed, and available for booking on December 28 is placed in service on December 28, even if the first guest arrives in January.

A property still awaiting furniture delivery, without a certificate of occupancy, or not yet listed anywhere, is not available and is not placed in service.

The Checklist That Establishes Readiness

Ownership and access. The closing must have occurred and you must control the property.

Physical readiness. Renovation substantially complete, utilities on and in your name, and the property habitable. Minor punch list items generally do not prevent placement in service, but a property with no functioning kitchen or no heat does.

Furnishings in place. For a furnished short-term rental, the property is not available to rent without beds, linens, kitchenware, and basic supplies. Delivery and installation dates matter and should be documented.

Regulatory compliance. Where the jurisdiction requires a short-term rental permit, business license, or registration, the property is generally not available to rent lawfully without it. Permit issuance dates are a common December bottleneck and are entirely outside your control once submitted.

Listed and bookable. The listing published on at least one platform with an available calendar is the clearest evidence of availability. A screenshot of the listing with the publication date, and the platform's own record of when the listing went live, is strong documentation.

Insurance in force appropriate to short-term rental use.

What Does Not Establish Placement in Service

Closing on the property. Acquisition alone does not place property in service.

Paying for furniture that has not been delivered. The de minimis and bonus depreciation rules for the furnishings themselves also turn on when those items were placed in service, so a December order delivered in January is a January asset.

Intending to rent. Intent without availability is not enough.

A booking accepted for a future date on a property that is not yet ready. The booking shows intent to operate but does not establish that the property was in a state of readiness.

The Furnishings Are Separately Placed in Service

This point is missed constantly. The building and the personal property inside it have their own placed in service dates.

Furniture, appliances, electronics, and housewares delivered and installed in December are five-year property placed in service in December, fully deductible under IRC Sec. 168(k) that year.

Items ordered in December but delivered in January are January assets, deductible the following year.

For a property carrying $50,000 of furnishings, the delivery timing is worth roughly $18,500 at a 37% rate. Ordering early enough for December delivery is a free decision that many owners make too late.

Mid-quarter convention considerations also apply. If more than 40% of the year's depreciable property placed in service falls in the fourth quarter, the mid-quarter convention applies rather than the half-year convention for personal property, which changes the first-year calculation. Bonus depreciation at 100% makes this largely academic for property that is fully expensed, but it matters where bonus is elected out of or unavailable.

The Realistic December Timeline

Working backward from December 31, a property acquired in the fourth quarter needs roughly this sequence.

Permit or license application submitted by early November in jurisdictions with processing time. This is the item most likely to blow the deadline and the one you cannot accelerate.

Furniture ordered by mid-November for December delivery, accounting for lead times on beds and larger items.

Utilities transferred and renovation punch list closed by mid-December.

Listing published and calendar opened by the third week of December, leaving room for platform review.

Documentation captured contemporaneously: listing screenshot with date, permit issuance date, delivery receipts, utility activation, and insurance binder.

An investor who closes on December 20 with an unfurnished property and no permit is not going to place it in service that year, and pushing the paperwork to claim otherwise creates exposure disproportionate to the benefit.

When You Miss the Deadline

Missing the year is not a disaster. The deduction is available in the following year when the property is genuinely placed in service, and the cost segregation study can be run then.

What you lose is a year of deferral, not the deduction itself.

For an investor who specifically needed the deduction in the closing year, perhaps against a large one-time income event, the alternative is a look-back study on a property already owned, filed with Form 3115. That places a catch-up deduction in the current year without needing a new acquisition to be ready.

This is the practical answer for an investor in December who realizes the new property will not make it: run the study on something you already own instead.

Worked Example: Two Weeks Apart

Investor A closes on a $760,000 short-term rental on November 8. Furniture is ordered November 12 and delivered December 4. The city permit, applied for November 10, is issued December 18. The listing goes live December 20 with an open calendar. First booking arrives January 9.

The property is placed in service December 20. A cost segregation study produces $174,000 of bonus eligible components, plus $47,000 of separately placed furnishings, for approximately $221,000 of first-year deduction. Material participation is documented at 112 hours from November through year end.

Investor B closes on a comparable property December 14. Furniture is ordered December 16 with a January 20 delivery. The permit application is submitted December 18 and issued January 22. The listing goes live January 26.

The property is placed in service in January. Investor B has zero depreciation in the closing year.

Investor B instead runs a look-back study on a rental acquired three years earlier, filing Form 3115 to claim a $138,000 catch-up deduction in the current year. That recovers most of the intended benefit from a property they already owned.

Frequently Asked Questions

When is a short-term rental placed in service?

When it is first in a condition of readiness and availability for its assigned function, under Treas. Reg. Sec. 1.167(a)-11(e)(1)(i). For a rental, that means ready and available to rent. A guest does not have to occupy it, but it must genuinely be bookable.

Does closing on the property place it in service?

No. Acquisition alone is not enough. The property must be physically ready, furnished for a furnished rental, lawfully permitted where required, insured, and listed with an open calendar before it is available to rent.

What if my furniture arrives in January?

Those items are placed in service in January and are deductible the following year, separately from the building. For a property with $50,000 of furnishings, the delivery date is worth roughly $18,500 at a 37% rate, so order early enough for December delivery.

Do I need a short-term rental permit before year end?

Where the jurisdiction requires one, generally yes, because the property is not lawfully available to rent without it. Permit processing time is the most common December bottleneck and the one factor entirely outside your control once submitted.

What if I miss the deadline?

You lose a year of deferral, not the deduction. The property is placed in service the following year and the study runs then. If you needed the deduction in the current year, a look-back study with Form 3115 on a property you already own can substitute.

The STR Placed in Service Deadline: What Has to Happen Before December 31