Three Years of New York's Local Law 18: What the Registration Data Actually Shows
New York's Local Law 18 is three years into enforcement, and the numbers quoted about it disagree because they count different things. What deserves attention is the shape of the filter — a presence requirement and a guest ceiling — because that, rather than a form or a fee, is what decides which units survive and which return in another structure.
The interesting number is not how many listings disappeared. It is which ones came back.
Last updated: September 21, 2026
New York's Local Law 18 has been shaping the city's short-term rental market for three years, and it is still the rule most often cited by councils elsewhere. It is also the rule most often misquoted, because the figures reported about it disagree. That disagreement is not sloppiness: the published numbers count different things — applications, grants, live listings, scraped inventory — and none of them measure the same population. This article avoids quoting any of them as fact and deals instead with what is verifiable and more useful, namely the shape of the filter. Once you know what the rule tests for, the direction of the data stops being surprising.
Key Takeaways
- The rule tests for presence, not paperwork. The form is trivial; being at the property during the stay is not.
- Registered and active are different populations. Published counts often compare one against the other.
- What returned did so in another structure. Hosted stays and longer stays, not the units that left.
- Absentee whole-home units are the population it removes. That was the design, and it worked.
- Other cities copy the filter, not the fee. Watch for a presence test landing near you.
What the law asks for, in one page
Registration is what distinguishes offering a stay for sale from offering one for sale unlawfully, and Local Law 18 requires it before short letting in New York City (verified in our policy matrix, checked September 2026). Two conditions inside that requirement do nearly all the filtering:
| What the rule requires | What it asks in practice | What it removes |
|---|---|---|
| Registration before letting | A registration for the unit, held by the person letting it (verified for the existence of the registration requirement; the mechanism inferred) | Selling a stay first and seeking permission later |
| The host is present | Somebody sleeping in the unit during the staying period | The absentee whole-home unit, which the market was largely built from (verified effect) |
| Guests capped at two | Two paying guests at a time, however many the unit sleeps | The group-weekend model that depended on headcount |
| Registration attached to one unit | One registration tied to one address and one responsible person (inferred) | Treating a portfolio of units as one account |
The middle two rows are the ones worth reading twice, because they are the rows our matrix records as fact: the host has to be present and the guest count is capped at two, which together close the door on an owner who lives elsewhere and never appears at the property (verified). Everything else in the table is our reading of how such schemes are built (inferred) and should be checked against the city's own text.
None of this is a nightly-rate problem, which is what makes it expensive to misunderstand. A whole-home unit that cannot meet a presence test does not become less profitable; it becomes unsellable on the channels that check, and availability and rates for Airbnb, Booking.com, Agoda and Trip.com are better managed from one calendar than from four tabs at localsbnb.com.
The counts everyone quotes, and what each one measures
There are several ways to count a short-term rental market and they do not reconcile. Before quoting any number about New York, it helps to know which of these is being quoted.
| What the figure counts | What it actually measures | How far it can be trusted |
|---|---|---|
| Registration applications received | Demand to comply, including applications that never succeed | High as a measure of interest, useless as a measure of live units |
| Registrations granted | Units entitled to be listed, whether or not they are published | The closest thing to supply, but it includes dormant units (inferred) |
| Listings visible on a platform on one day | Advertised inventory, which fluctuates weekly for ordinary reasons | Fine as a snapshot, misleading quoted without the date |
| Scraped or third-party listing estimates | Whatever a research group's crawler found, often double-counting multi-platform units | Varies by source — published figures vary by source, so treat every one as a range |
Three years in, the honest summary is directional rather than numeric: the stock of units advertised as short lets fell sharply against what preceded the rule, approvals ran well below applications, and enforcement has settled into routine rather than exceptional operation (inferred; our matrix records, as of September 2026, that LL18 enforcement is now routine — verified for that point only). Any specific number attached to those statements belongs to whoever published it, with its date and its denominator attached.
Which listings came back, and in what structure
The interesting movement is not the fall. It is what filled the space afterwards, and the pattern is more informative than any total.
- The hosted stay. Rooms within a home somebody lives in satisfy a presence test without any restructuring, so this is the category that held its ground (inferred).
- The longer stay. Stays long enough to fall outside the short-term letting framework sit beyond the registration requirement entirely, which is why operators re-based their calendars rather than closing (inferred; confirm the threshold the city applies with the city itself).
- The professionally managed unit that qualifies. Where a responsible person genuinely occupies the property, the unit can still be let under the rule, so the surviving inventory skews toward operator-occupied stock (inferred).
- Nightly inventory that moved outward. Units that cannot satisfy the test do not vanish; they tend to appear in neighbouring jurisdictions with no equivalent rule (inferred).
The fourth bullet is the one that should interest anybody watching this from another city. Regulation of this kind rarely reduces activity so much as it relocates it, and a council measuring its own success by listing counts within its boundary will see whatever fragment of that activity stayed put.
What operators elsewhere should take from this
Three things travel and three do not, and separating the two is most of the value of looking back at New York.
What travels: a presence requirement, because it is far easier to administer than a cap and removes the politically exposed category without naming it; a platform-side obligation, because enforcement scaled by knocking on doors does not scale at all; and a registration identifier that has to appear wherever the unit is sold, because that is what makes the record checkable.
What does not travel: the particular totals, which belong to a housing market with New York's shortages and its rent stock; the pace, which depended on litigation and on an enforcement office built for it; and the expectation that operators will simply stop, since the evidence points to restructuring instead (inferred).
For an operator with units in several cities, the practical version is short. Assume the next rule you meet includes a presence test, and know today which of your units could satisfy one. That answer decides whether a unit is an asset or a relocation problem long before the ordinance is drafted.
FAQ
How many short-term rentals are registered in New York now?
Published figures vary by source, and they count different populations — applications, grants, or visible listings on a given day. We did not verify an official figure for this article, so check the city's own reporting and note which of those three it is counting.
Can I register a whole apartment I own but do not live in?
The condition recorded in our policy matrix is that the host must be present and guests are capped at two, which is why absentee owners have found compliance effectively unavailable (verified). If you are not going to be at the property during stays, treat the unit as outside this market rather than as a registration problem to solve.
Did the rule actually reduce short-term letting?
Directionally yes: the units it removes are precisely the ones it was written to remove, and enforcement has become routine rather than exceptional (verified for September 2026). How much activity left the city rather than stopped is the part nobody can count cleanly (inferred).
Read your own portfolio the way this rule reads a unit — presence first, then everything else. If a presence test landed in your city tomorrow, the list of units that survive is worth knowing now rather than after the ordinance appears. While you are drawing that list, availability and rates for Airbnb, Booking.com, Agoda and Trip.com are easier to keep straight from one place: localsbnb.com.
Requirements differ by city and region and change over time; confirm the current position with your own authority. Only the registration requirement and the presence-and-guest conditions are recorded as verified here; everything else in this article — including every figure referred to without a number — is inferred. LOCALSBNB provides software, not legal advice.
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