Every few weeks someone sends me a listing for a guesthouse in Japan that’s already running, with a line like “turnkey, 12% yield, fully booked.” I understand the appeal. The furnishing is done, the first season with no reviews is behind you, and cash comes in from day one. You may also inherit a compliant physical setup. The right to operate still has to be checked, though. Under minpaku, a change of operator usually needs a new notification. Under 旅館業, you can only succeed to the license if the business transfer gets prior approval. Almost every time, the number in the headline is the most generous possible reading of the property’s history.

This post covers how I check the seller’s numbers before I believe any of them. It’s not about whether to buy. It’s about making sure you’re looking at the business as it really is, not the one in the brochure.

TL;DR

  • Listings for operating guesthouses usually quote gross yield: annual revenue divided by price. In my underwriting, I often test 30–50% of revenue going to operating costs before debt service, so compare on net yield.
  • Ask for OTA payout reports and bank statements, not the seller’s spreadsheet. For due diligence, don’t count claimed revenue unless it matches OTA payout reports, bank deposits, cash receipts or filed tax records.
  • Occupancy can matter more than price. Run a sensitivity comparing a 10-point drop in occupancy with a 10% price cut. When fixed costs are significant, the occupancy drop can hurt more.
  • Check what won’t come with the sale, such as reviews tied to the seller’s host account or a license in the seller’s name, and model the time it takes to rebuild them.
  • Look at 12 months of data, not a peak quarter. In Japan’s seasonal market, a strong spring can hide a weak winter.

Why Can’t You Trust the Advertised Yield?

You can’t trust it because it’s almost always gross yield, which leaves out the costs that decide whether a small hospitality property makes money. Gross yield is annual revenue divided by purchase price. It ignores OTA commissions, cleaning on every turnover, utilities, consumables, fire-safety compliance, outsourced management fees, fixed asset tax (固定資産税) and the renovation reserve you’ll need sooner than you’d like.

The number you can actually compare between properties is net yield: net operating income divided by the all-in purchase cost. “All-in” means the price plus brokerage fees, registration and acquisition taxes, and any furnishing or upgrades you’ll need to do. A property advertised at 12% gross often lands somewhere in single digits on that basis. That doesn’t always kill the deal, but it’s a very different deal.

This is the gap we built japan-invest to show. You enter gross and the cost lines, and it shows you how far the headline falls. A spreadsheet does the same job. What matters is that you do the sum before you start negotiating.

What Documents Should You Ask the Seller For?

Ask for evidence that money actually arrived, not summaries the seller prepared. This is what I request:

  1. OTA payout reports for the last 12–24 months from each platform (Airbnb, Booking.com and so on). These show payouts after commission, which is what really hits the account.
  2. The business bank statements for the same period, so you can match the payouts to deposits.
  3. Cleaning and linen invoices. Cleaning is charged per turnover, so these double as a rough check on how many stays there really were.
  4. Utility bills. Electricity and water usage that’s flat while the seller claims high occupancy is a question worth asking.
  5. Accommodation tax filings, if the relevant local government levies the tax. It can be levied by a prefecture or by a municipality, and whether it applies depends on the facility type and on when the rules take effect. For example, Tokyo adds simple lodgings (簡易宿所) and minpaku to its accommodation tax from April 1, 2027. Osaka Prefecture already covers hotels/ryokan, simple lodgings, special-zone minpaku and residential minpaku.
    • Who collects it. The OTA or travel agent may or may not collect the tax. Reconcile guest charges, OTA payouts and the monthly accommodation-tax returns, and confirm who remits under the local rules.
    • Why the returns help. Filed returns are another independent record of guest-nights. They also tell you whether the seller has been filing properly.
    • The taxable amount. Check the taxable per-person-per-night accommodation charge under the local ordinance. Kyoto’s current rules, for example, include cleaning fees and service charges but exclude meals and consumption tax. Tokyo’s revised Q&A also includes mandatory cleaning charges. If the base is wrong, stays end up in the wrong tax band.
  6. Licensing documents: the minpaku notification or the hotel/ryokan business license, plus fire-safety paperwork.

If a seller hesitates over the first two, that tells you something.

How Do You Cross-Check Occupancy Claims?

Check the claimed number of nights against things the seller didn’t write. Payouts, cleaning invoices, utility usage and accommodation tax filings should all tell roughly the same story. If the seller says 85% occupancy, there should be enough cleaner visits to match, at their average length of stay.

If the property is operated under minpaku (住宅宿泊事業), first apply the 180-day annual cap and any local ordinance restrictions. Track calendar occupancy separately from how many of the permitted days were used. Calendar occupancy well above about 49% requires a 旅館業 license (旅館業許可) or another lawful basis. So an 85% claim on a minpaku property is either measured against permitted days only, or it’s a compliance problem.

Occupancy is where I’m most careful, because in my models it’s usually the biggest driver of returns. Run a sensitivity comparing a 10-point drop in occupancy with a 10% cut in the purchase price. When fixed costs are significant, the occupancy drop can be larger. So a seller who agrees to a lower price but overstates occupancy can still sell you something overpriced.

Two patterns I watch for:

  • A strong year that’s all one season. A Kyoto property booked solid through sakura and autumn foliage can look great on an annualised basis. If the seller’s figures cover only a peak quarter, ask for the whole year.
  • Occupancy propped up by low prices. High occupancy at a nightly rate below what similar properties nearby charge may not hold up once you raise prices to cover your own costs. Look at occupancy and ADR together.

What Doesn’t Transfer With the Sale?

A lot of what makes an operating guesthouse valuable belongs to the seller, not the property, and you need to put a price on rebuilding it.

  • Reviews and listing history. OTA listings usually sit under the host’s account. Even if you take over the property, the review count and ranking signals may not come with it. A new listing often starts slower, and the first few months of your forecast should reflect that.
  • The license. Minpaku notifications and hotel/ryokan licenses are tied to the operator. Under minpaku, a change of operator usually means the seller closes the business and you file a new notification. Under 旅館業, you can succeed to the license only if the business transfer gets prior approval. Confirm the details with the local authority and leave time for it in your plan, because you can’t take bookings until it’s sorted.
  • Systems and suppliers. The seller’s cleaners, linen company and channel manager accounts may or may not stay on. Try to talk to the cleaning team before you close.
  • Neighbour relations. Ask directly about any complaints, and if it’s a condo, read the management rules (管理規約). A history of noise complaints is a real risk to the business, even though no spreadsheet will show it.

What Should You Budget for Right After Purchase?

Assume something will need money in year one, because something always does. Water heaters, air conditioners and washing machines in a busy guesthouse wear out faster than in a normal home. Ask how old each one is. Look at recent reviews for repeated complaints like “the shower was lukewarm” or “AC was noisy”, because those are repair bills the seller hasn’t paid yet.

If you get contractor quotes for those repairs during due diligence, compare them line by line. Japanese quotes (見積書) can bundle a lot into 諸経費 (miscellaneous costs), and that variance adds up quickly when you’re pricing several fixes at once.

FAQ

Q: Is gross yield ever useful?

It’s useful for a quick first filter, to rule out properties that can’t work even before costs. Don’t compare two properties or make an offer on gross yield alone, because operating costs differ a lot from one property to another.

Q: How many months of data should I ask for?

At least 12, and ideally 24. Japan’s demand is very seasonal (sakura, Golden Week, summer, koyo, New Year), so anything less than a full year can give you a distorted picture.

Q: Can I keep the seller’s Airbnb listing and reviews?

Don’t count on it. Listings and reviews are generally tied to the host’s account, and the platforms’ terms apply. Plan for a slower ramp-up under your own account, and treat any history you do keep as a bonus.

This post is for informational purposes only and does not constitute legal or tax advice. Please consult a qualified professional for your specific situation.