How Short-Term Rental Regulations Change Your Bonus Depreciation Math

The bonus depreciation calculation on a short-term rental is a federal exercise. IRS §168(k), the OBBBA restoration of 100% bonus, the placed-in-service test — none of it depends on where the property sits. But the reason investors buy short-term rentals for tax purposes almost never rests on the depreciation number alone. It rests on the STR loophole — the carve-out under Treas. Reg. §1.469-1T(e)(3)(ii) that treats an STR with an average guest stay of 7 days or less as non-passive, letting the depreciation loss offset W-2 or 1099 income.

That's where regulations enter. A local ordinance that seems purely operational — a permit rule, a minimum-stay length, a zoning overlay — can silently disqualify the loophole and turn a $180,000 Year 1 W-2 offset into a passive loss carryforward that sits on a schedule for years. The short-term rental regulations tool exists precisely because this happens more often than most buyers realize, and the ordinance text is the only thing that resolves it. Blog posts, aggregators, and even seasoned agents get this wrong on high-stakes markets.

Three Local Rules That Reshape the Tax Math

Not every regulation matters for depreciation. Building code, transient occupancy tax rates, and noise ordinances are operational — they don't touch the tax strategy. Three categories do:

• Minimum stay length. Any ordinance that forces reservations to be N nights or longer directly moves your average guest stay. The 7-day threshold in Treas. Reg. §1.469-1T(e)(3)(ii) is a hard line — average of 7.01 days disqualifies, average of exactly 7.0 days qualifies.
• Permit rules and occupancy caps. If a market bans new STR permits, closes off a whole zone, or requires the operator to be an owner-occupant, your property may not be legally operable as an STR. Bonus depreciation attaches to lawful placed-in-service use. Illegal operation is not placed-in-service under the intended use standard.
• Owner-occupancy requirements. Markets that only allow STR operation from a primary residence collapse the personal-use rules from IRC §280A into the loophole strategy. Personal-use days above the 14-day / 10%-of-rental-days safe harbor force proportional deduction limits.

Everything else — TOT registration, safety inspections, HOA rules on quiet hours — matters operationally, but doesn't move the tax number.

Minimum Stay Ordinances vs. the 7-Day Rule

This is the single most common trap. The STR loophole under Treas. Reg. §1.469-1T(e)(3)(ii) requires the average customer use of the property to be 7 days or less during the tax year. Some ordinances collide with that number directly.

• 1–3 night minimums — no conflict. Typical Airbnb/VRBO booking patterns average 3–5 nights in most markets.
• 4–6 night minimums — usually still fine. Your average stay drifts higher but rarely crosses 7 unless you also serve corporate or seasonal renters.
• 7-night minimum (very common) — this is where the loophole quietly dies. A hard 7-night minimum makes your average stay 7.0 days at best. Any longer stays push the average over. Investors write this off as "still under a week" and get surprised by the number at tax time.
• 14-night and 30-night minimums — the loophole is dead by construction. The tax strategy becomes long-term rental, not STR.
• Mixed regimes — some jurisdictions apply a 30-night minimum in residential zones and no minimum in commercial zones. The zone the property sits in determines the tax math.

The failure mode is quiet. Bonus depreciation still applies — you get the deduction on your Schedule E — but the loss becomes passive under §469. Passive losses only offset passive income. If your W-2 or 1099 is the reason you bought the STR, a 7-night minimum has just made the deduction useless in Year 1.

Permit Rules and What "Placed in Service" Really Means

Bonus depreciation under §168(k) requires the property to be placed in service for its intended use. For a short-term rental, that intended use is hosting paying guests as an STR — see our placed-in-service deadline calendar for the mechanics. If a jurisdiction requires an STR permit and you don't have one, the property is not legally available for its intended STR use. An audit can unwind the deduction.

There are three permit-availability regimes to know before you write an offer:

• Permits available to any qualifying buyer. The clean case. Apply, receive, operate, deduct. Markets like Coeur d'Alene ID, McCall ID, Killington VT, Grand Lake CO, and Hocking Hills OH currently work this way.
• Permits capped, existing licenses transferable. New permits aren't being issued, but properties that hold a live permit can transfer it in a sale. Palm Springs CA and parts of the Carolina coast have historically fallen here. A grandfathered transferable permit is often more valuable than a fresh one — permit scarcity gets priced into the sale, which increases your depreciable basis.
• Permits capped, not transferable, or new permits banned. Effectively closed to new buyers. Bonus depreciation on illegal STR operation risks being disallowed on audit. Moab UT is currently the clearest "effectively banned" market in the DepreciMax database; New Orleans and parts of Charleston have similar structural closures.

Verify the specific operating jurisdiction. Many STR markets span multiple townships or a county-plus-city split (Poconos PA, Clark County vs. City of Las Vegas, Kalispell vs. Flathead County) — the rules can flip within a five-mile drive. The property address decides, not the market name.

Owner-Occupancy Rules and §280A Personal-Use Traps

A growing number of jurisdictions restrict STR operation to owner-occupied properties. Savannah GA, Charleston SC, parts of New Orleans, and various coastal California cities allow STR use only from a primary residence or the operator's own home.

For material participation, owner-occupancy is often helpful — you're on-site, hours accumulate naturally, and the 100-hour "most active participant" test or the 500-hour test in Treas. Reg. §1.469-5T is easier to satisfy. The 100-hour rule for STR material participation covers this in detail.

But owner-occupancy introduces a different trap: IRC §280A personal-use days. If you or family members use the property personally for more than the greater of 14 days or 10% of rental days, the property becomes a "residence" under §280A. Deductions are then limited to rental income — you can't generate a net rental loss, which zeroes out the bonus depreciation Year 1 offset.

• Weekend personal use. Casually staying at "your Airbnb" on weekends when it isn't booked adds up fast. 26 personal-use weekends is 52 days — well past the 14-day threshold on most rental patterns.
• Family use. §280A treats family use as personal use even if a fair-market rent is charged, in most cases.
• Repairs and maintenance days. Days spent on legitimate repairs or maintenance are not personal-use days, but the file needs to prove it — receipts, contractor records, a dated log.

Which Markets Currently Break the Tax Strategy

The pattern is: strict permit systems combined with 7-night-plus minimums plus owner-occupancy carve-outs. In the DepreciMax regulations tool, markets currently classified as restricted or effectively banned that most often trip up first-time STR buyers:

• Moab UT — effectively banned for new operators outside grandfathered permits.
• Palm Springs CA — permit cap; check individual property permit status before offering.
• Santa Fe NM and Taos NM — permit-restricted with additional zoning overlays.
• Las Vegas NV — restrictive city-of-Las-Vegas ordinance; Clark County (Summerlin, Henderson) can differ materially.
• Palm Coast / Flagler Beach FL — restricted; verify jurisdiction.
• Kalispell / Flathead MT — permit-restricted; Whitefish and other Flathead sub-jurisdictions have their own rules.
• Myrtle Beach SC — restrictive by zone; some sub-markets remain viable.

Markets classified as mixed — Poconos PA, Blue Ridge Mountains GA, Broken Bow OK, Table Rock Lake MO, Lake Lanier GA — have tax-viable pockets and non-viable pockets within the same "market name." The ordinance text and the property's exact operating jurisdiction are the only things that resolve which pocket a specific address sits in.

The classifications above pull from primary sources: the operating city or county's STR licensing page, the adopted ordinance, or the state department page. Re-verified quarterly. The full tool covers 50+ short-term rental markets: STR regulations by market.

How to Check Before You Offer: The 5-Minute Pre-Offer Checklist

Before writing an offer on a short-term rental, five ordinance facts determine whether the bonus depreciation strategy holds. All five come from primary sources — the operating jurisdiction's own page, not a blog post or aggregator.

1. Is the specific operating jurisdiction the city, the county, or a special district? STR markets frequently span multiple. Get this right first.
2. Is a permit required, and is a new permit available to a non-resident buyer? If capped, is the property's existing permit transferable at sale?
3. What is the minimum stay length? Any value above 6 threatens the 7-day STR loophole.
4. Is owner-occupancy required? If yes, model §280A personal-use limits and material-participation hours before pricing.
5. Are there occupancy caps or zone-specific restrictions? A property advertised as sleeping 12 in a zone that caps occupancy at 8 has a revenue ceiling below the pro forma.

All five answers should be in the operating jurisdiction's ordinance text, cross-referenced against the permit database. The DepreciMax STR regulations tool pre-answers these for 50+ markets against primary sources. For everything else, pull the ordinance PDF directly and read the two or three sections that govern rentals and permits.

Regulations Change — Build the Deal With a Margin

The final consideration is that STR regulations are on a one-way ratchet in most jurisdictions. Ballot measures, city council votes, and zoning updates have consistently moved rules toward restriction, not permissiveness, over the past three years. A deal that clears the pre-offer checklist today can face a new ordinance in 12 months.

This isn't a reason to avoid the strategy — bonus depreciation is a Year 1 deduction. If you close, place in service, and claim the deduction in the same tax year, later ordinance changes don't retroactively unwind the deduction. The risk shifts to the operating cash flow, not the tax deduction.

Two protective moves:

• Model a scenario where the property becomes a mid-term rental (30+ nights) in year 3+. If the deal still pencils as a mid-term rental, regulation risk is a manageable operational adjustment, not a total loss.
• Don't stretch the underwriting on markets with pending ballot measures or active permit-cap debates. The deal needs to work at your entry, not at a compressed post-regulation revenue level.

Frequently Asked Questions

Do short-term rental regulations affect bonus depreciation?

Yes — indirectly, and often severely. Bonus depreciation itself is a federal rule. But whether the loss offsets W-2 income depends on the STR loophole, which needs an average guest stay of 7 days or less. A local 7-night minimum kills that. Read the ordinance before you offer.

What is a minimum stay ordinance and how does it affect STR tax strategy?

A city rule forcing reservations to be N nights or longer. Under 7 nights: loophole preserved. 7 nights and up: loophole broken by construction. Bonus depreciation still applies, but the loss becomes passive under §469 and can only offset passive income.

Can I still take bonus depreciation on an STR in a permit-restricted market?

Yes, as long as the property is placed in service in a legal STR capacity. Operating without a required permit puts the deduction at risk on audit — placed-in-service means the property is available for its intended lawful use.

What is the STR loophole and how do permit rules affect it?

The STR loophole (Treas. Reg. §1.469-1T(e)(3)(ii)) treats short-term rental activity as non-passive if average guest stay is 7 days or less and you materially participate. Permit rules affect it through minimum-stay length (average guest stay) and owner-occupancy requirements (participation hours + §280A).

Do owner-occupancy requirements change my bonus depreciation strategy?

They change the participation math. Living on-site usually satisfies material participation easily, but personal-use days above 14 days or 10% of rental days trigger §280A limits that prevent generating a net rental loss.

Which STR markets have regulations that break the tax strategy?

The DepreciMax regulations tool currently flags Moab UT, Palm Springs CA (permit-restricted), Santa Fe NM, Las Vegas NV, Palm Coast/Flagler Beach FL, and Kalispell/Flathead MT as restricted or effectively banned. Mixed markets like Poconos PA, Blue Ridge Mountains GA, and Broken Bow OK have viable pockets and non-viable pockets — jurisdiction determines which.

How do I check STR regulations before I make an offer?

Work from the operating jurisdiction's primary source: STR licensing page, adopted ordinance, or state department page. Third-party aggregators and blog posts are often out of date after the last ballot cycle. Cross-reference minimum-stay length and permit availability at a minimum.

If a market bans new STR permits, is my strategy dead?

Not necessarily. Grandfathered permits are transferable in some jurisdictions. A property with a live transferable permit in a capped market often carries a scarcity premium, which increases depreciable basis. The tax math still works; the acquisition math shifts.