Running a short-term rental in Japan under the Minpaku Shinhou comes with a hard limit that surprises a lot of new operators: 180 nights per year. That’s roughly half the calendar, and it resets on January 1st. Miss a Golden Week or Obon opening window and you’ve burned peak revenue you can never recover.

I’ve watched operators treat this cap as something to fight against — usually badly — and I’ve watched others build their entire pricing architecture around it from day one. The second group consistently makes more money.

TL;DR

  • Japan’s Minpaku Shinhou (住宅宿泊事業法) caps home-sharing listings at 180 open nights per calendar year — roughly half the year
  • The cap is per property, not per operator; if you manage three properties, each gets 180 nights
  • Some municipalities set lower local caps; Kyoto’s residential zones are significantly more restrictive than the national limit
  • Smart operators build higher ADR and longer minimum stays into those 180 nights rather than filling every slot at any price
  • A Simple Accommodation (簡易宿所) or Ryokan (旅館業) license removes the night cap entirely — worth calculating when occupancy demand clearly outpaces what 180 nights can support

What Is the 180-Night Cap, Exactly?

The 180-night rule comes from the Minpaku Shinhou, the 2018 law that created a legal pathway for homeowners and investors to rent out residential properties for short stays. Before this law, most short-term rentals in residential buildings were operating in a legal grey area.

The law made it legal — but put guardrails on it. Operators file a notification (届出) with their prefecture, receive a minpaku number, and can host guests for up to 180 nights per calendar year. A “night” means a night actually hosted — so a one-week stay consumes 7 nights of your annual allocation. The cap is not about bookings; it’s about nights with guests in the property.

One thing that surprises new operators: this isn’t about calendar blocks or availability windows. It’s about nights you actually host. Track actual guest nights, not open nights on your calendar.

How Do Municipalities Add Their Own Restrictions?

The national law sets 180 nights as the ceiling. Local governments can go lower, and many have.

Kyoto is the most aggressive example. In designated residential zones (住居専用地域), the city restricts minpaku operations to specific periods, effectively capping you well below 180 nights depending on your exact zone. Operators in residential Kyoto sometimes find themselves working with 60-90 usable nights rather than 180. Check the Kyoto City website for current zoning rules before running any revenue projections — don’t assume the national cap applies to your specific address.

Tokyo’s wards vary considerably. Central commercial zones typically have no additional restrictions beyond the national law. Building-level restrictions through condo association rules are a separate matter — that’s a legal agreement issue, not a regulatory one, but equally binding. Osaka simplified its framework somewhat after 2018 but still has district-level nuance.

The practical takeaway: always verify local rules, not just the national cap. The 180-night ceiling is the best case, not a guaranteed allocation.

Why This Cap Makes Pricing Strategy More Important

If you’re running a licensed hotel, you have 365 nights to sell. At 70% occupancy and ¥15,000 ADR, the revenue math works a certain way. Now cut your sellable nights in half. To hit the same revenue, you need to raise ADR significantly, push occupancy higher within your open window, or both.

This is why the best minpaku operators treat every available night as genuinely scarce. The pricing psychology shifts — and it should.

Which Nights Are Worth the Most?

Japan has extremely predictable demand spikes. If you only have 180 nights to sell annually, you want to be open for the right ones:

  • Golden Week (late April to early May) — roughly 10 days of near-peak demand from both domestic and inbound travelers
  • Obon (mid-August) — a 7-10 day window of high domestic demand, families traveling
  • Year-end and New Year (年末年始) — December 28 through January 3 is consistently strong
  • Cherry blossom season (late March to early April, varies by region and year) — 2-3 weeks of inbound demand that commands strong premiums
  • Silver Week (September, when it falls) — variable but valuable

These windows alone account for 40-50 nights. Budget them deliberately. Don’t accidentally burn peak nights on low-value single-night bookings.

Should You Raise Minimum Stay Requirements?

Within a capped calendar, a one-night booking is expensive. You’ve consumed a night, done a full turnover, and earned one night’s revenue. A 3-night minimum converts that same slot into 3× the revenue with 3× fewer turnovers.

At BenStay, we shifted several properties to 2-night minimums during peak windows and 3-night minimums during mega-peak periods like Golden Week and year-end. The reduction in operational cost was immediate — fewer cleanings, fewer check-ins to coordinate. ADR held up because demand in those windows is inelastic. Guests who want to stay during cherry blossom season aren’t walking away over a 3-night minimum.

What About Getting a Full Accommodation License?

If you’ve run the numbers and 180 nights genuinely cannot support your business model, there’s a different path: operating under the Ryokan Business Act (旅館業法) rather than the Minpaku Shinhou. Under a Simple Accommodation license (簡易宿所営業), there is no night cap. But the requirements are materially different:

  • Structural standards: minimum floor area per guest, specific facility requirements
  • Fire safety compliance: exits, alarms, extinguishers scaled to property size
  • Contact availability: you need to be reachable while guests are in the property
  • Zoning: the property must sit in a zone permitting accommodation use, which excludes many residential areas

For a property designed as an accommodation business rather than a home being rented part-time, Simple Accommodation often makes more sense than trying to engineer a minpaku business around a 180-night cap. We’ve done this analysis for several properties in the portfolio. The answer depends heavily on the property’s demand ceiling and how constrained the local residential zoning is.

How to Track Your Remaining Nights

You might expect the platforms to handle this. They don’t, not reliably. Airbnb shows your calendar but doesn’t aggregate your annual guest-night count or flag when you’re approaching the national limit.

Keep a simple tracker — a spreadsheet with each property’s nights used year-to-date, updated weekly. Set review points at 120, 150, and 170 nights so you have time to close availability before accidentally exceeding the cap. Exceeding 180 nights violates the Minpaku Shinhou. Prefectures do audit, and violations can result in fines or revocation of your notification number, requiring re-filing to resume operations.

The Revenue Math in Practice

Let’s say you want ¥2,000,000 in annual revenue from a single property under minpaku rules.

With 180 nights available at 80% occupancy (144 nights actually booked), you need roughly ¥13,900 ADR. In central Tokyo or the major Kyoto tourist districts, that’s achievable with a well-presented property. In a secondary city or suburban residential area, it requires more work — better photos, stronger reviews, longer minimum stays to reduce empty-night drag.

The 180-night constraint, counterintuitively, tends to push minpaku operators toward better pricing discipline than uncapped operators ever develop. Because you can’t compensate with volume, you have to get the price right from the start.

FAQ

Q: Does the 180-night cap reset every calendar year?

Yes. The cap resets on January 1st each year. Unused nights from one year cannot be carried forward, and you cannot borrow against next year’s allocation. Each calendar year is a clean slate with a fresh 180-night limit.

Q: What happens if I accidentally exceed 180 nights?

Exceeding the cap is a violation of the Minpaku Shinhou. Consequences can include administrative guidance, fines, and in serious cases revocation of your notification number — which would require re-filing to resume operations. If you’re tracking closely and realize you’re approaching your limit mid-December, block the calendar immediately and stop accepting reservations until the new year opens.

Q: Can the same property hold both a minpaku notification and a Simple Accommodation license?

No. A property operates under one regulatory framework. If you obtain a Simple Accommodation license, you should withdraw the minpaku notification for that property. Running both simultaneously would be legally inconsistent and create compliance problems.

This post is for informational purposes only and does not constitute legal or regulatory advice. Japan’s minpaku regulations span national, prefectural, and municipal layers, and rules evolve over time. Please consult a qualified professional or your local prefecture’s housing authority for guidance specific to your property and situation.