Bottom Line — Up to ¥39,000 per Room per Year; Required ADR Pass-Through of 0.7–2.1%

The conclusion first. One: for the hotel industry, the real event is not the removal of the wage requirement in October 2026 but the stepwise lowering of the employer-size requirement starting in October 2027. As explained below, rising minimum wages have already largely hollowed out the wage requirement, so its removal creates almost no step in costs.

Two: the size of the step falls within ¥20,000–¥39,000 per room per year. Converted into a required ADR pass-through, that is 0.7–2.1%, or ¥70–¥280 of ADR. Compared with ADR growth over the past few years, this is within a range that pricing can absorb.

Three: because the effective dates are fixed, the cost can be built into the acquisition business plan year by year. The seller’s historical results naturally do not include this step, so the buyer has to add it to the model. Put the other way, a buyer who can bid a price that still works after adding it can bid more accurately than one who has not.

The Timetable — The Employer-Size Requirement Goes from 51+ to Zero over 10 Years

The pension reform law was enacted on June 13, 2025 and promulgated on June 20 of the same year as Act No. 74. The current requirements for covering part-time workers are five: scheduled working hours of 20 or more per week, monthly wages of ¥88,000 or more, expected employment of more than two months, not being a student, and the size of the employer (51 or more people insured under the Employees’ Pension Insurance). The reform removes the wage requirement and the employer-size requirement.

The key detail is how “employees” are counted. The employer-size requirement counts not headcount but the number of people insured under the Employees’ Pension Insurance. Part-timers and casual staff whose scheduled hours are under three-quarters of a regular worker’s are not currently insured and are not counted. So a ryokan with 80 people on staff is treated as a “30-person employer” if 30 of them are full-time equivalents. In an industry like hospitality, with a high share of part-time workers, apparent headcount and the headcount used for the test can differ sharply.

Costing It — Employer Share Is 14.6% of Standard Monthly Remuneration, with a 0.67pt Prefectural Range

When coverage widens, the amount that lands on the employer is found by stacking up the contribution rates. The FY2026 (Reiwa 8) rates are as follows.

One practical point to note: the standard monthly remuneration for the Employees’ Pension Insurance has a floor of ¥88,000, while the health insurance floor is ¥58,000. So even for workers earning under ¥88,000 a month, the pension premium and the child and child-rearing contribution are calculated on a base of ¥88,000. The lower the wage, the higher the employer contribution relative to that wage.

By wage band, the annual employer contribution per part-time worker works out as follows. National average rates are used, and standard monthly remuneration is assigned using the Kyokai Kenpo grade table.

The prefectural gap is 0.67 points. For a property with 10 part-time workers at a standard monthly remuneration of ¥126,000, that works out to a difference of about ¥100,000 a year between Niigata and Saga. Small on its own, but when an operator running properties in several prefectures compares GOP by site, it amounts to a location-driven head start or handicap of that size.

Statutory Welfare Costs Vary by Location — Employer Contribution Rates Across 47 Prefectures

Health insurance rates are set by each prefectural branch of Kyokai Kenpo, so statutory welfare costs differ by location even at the same wage. The size and shade of each circle show the employer contribution rate (under 40, FY2026).

The Lodging Workforce — 58.8% Non-Regular, 1.6x the All-Industry Average

The impact of the expansion differs by industry because the share of part-time workers differs. In the Statistics Bureau’s Labour Force Survey, the lodging industry (intermediate classification) had 554,000 employees excluding executives on average in January–July 2026, of whom 326,000 — 58.8% — were non-regular staff. Of these, part-timers and casual workers numbered 279,000, or 50.3%.

In the same survey’s 2025 average, the non-regular share across all industries was 36.5%. Lodging is 22.3 points higher. Moreover, the lodging non-regular share in the same period a year earlier (January–July 2025 average) was 56.8%, so the share has risen by 2.0 points rather than falling. The population subject to the expansion is not shrinking.

Being non-regular is not the same as being covered, however. Coverage requires scheduled working hours of 20 or more per week, so on-call staff working around 15 hours a week remain outside. The model estimates below set headcounts after explicitly assuming that a certain share of non-regular workers work 20+ hours a week.

Seen the other way, this structure means lodging is an industry highly sensitive to the rule change. High sensitivity also means a wider gap between operators who prepare in advance and those who don’t. Where to draw the 20-hour line, and how to explain the change to staff whose take-home pay will change on enrollment, are issues that can be settled before 2027.

Three-Model Estimate — ¥20,000–¥39,000 per Room per Year, Required ADR Pass-Through of 0.67–2.06%

Using the rates and workforce structure above, we calculate the annual increase for three models of different room counts. All assumptions are stated. The number of full-time equivalents (= pension-insured employees) determines when coverage arrives; the number and wage level of newly covered part-time workers determine the amount.

Holding the annual cost per room at Model B’s approx. ¥22,500 and expanding the “occupancy and rate determine the pass-through” pattern seen in the three models across two axes — annual (full-year) room occupancy and estimated settled ADR — gives the following.

For the same annual amount, a property at 40% occupancy and ¥6,000 ADR needs a 2.56% pass-through, while one at 85% occupancy and ¥13,600 ADR needs only 0.53% — a gap of about 4.8 times. At the acquisition screening stage, simply plugging the target’s full-year occupancy and rate into this table gives a rough sense of how much of the social insurance expansion must be absorbed through pricing.

Owner-Operated Ryokan — The October 2029 End of Industry Exemption, and When the Transitional Measure Falls Away

The lodging industry has one more issue specific to it. Today, among sole-proprietor establishments that regularly employ five or more people, those in the 17 industries specified by law are mandatory-coverage establishments, but agriculture, forestry, fisheries, lodging, food service and some others are excluded — the so-called exempt industries. In October 2029 this exemption ends, and sole-proprietor lodging establishments also become mandatory-coverage establishments.

However, establishments existing at the effective date are exempted for the time being under a transitional measure. So owner-operated ryokan and minshuku operating as of October 2029 will continue as before for now.

What matters for investors and prospective successors starts here. The transitional measure is tied to “establishments existing at the effective date” and is not necessarily carried over when the owner changes. When a sole proprietorship incorporates, the corporation becomes a mandatory-coverage establishment regardless of headcount, so it is covered before the transitional measure even comes into question. In other words:

In lodging succession deals, the seller is often a sole proprietor. If the target’s workforce composition (the number of full-time equivalents and of part-time workers working 20+ hours a week) is pinned down during due diligence, post-acquisition statutory welfare costs can be calculated mechanically as in the table above. The tax side of succession — Japan’s special business succession tax scheme, which covers transfers made by December 2027 — is a separate issue worth reviewing alongside this one.

Linking to Investment Decisions — How to Place the Steps in NOI Underwriting and DSCR

In acquisition practice, the buyer layers expected future cost increases onto the seller’s trailing NOI. The social insurance expansion is one of the few items that can be placed “with certainty,” since its effective dates are fixed. Here we compare a conservative scenario and a pass-through scenario using the 100-room business hotel (Model B).

Even with zero pass-through, DSCR falls by only 0.06 — nowhere near threatening covenants. What matters more than covenants is the value once capitalized at a cap rate. A ¥2.25 million drop in NOI, at a 5.0% cap rate, means ¥45 million of asset value, or 3.7% of the purchase price. In a bid decided by a few percent, that is too large to ignore.

It is also worth pinning down the size needed in the pass-through scenario. Additional revenue carries distribution costs and similar deductions, so recovering ¥2.247 million at the NOI level requires more than that in nominal revenue.

The interest rate assumption has a far larger effect. At 1.5% and 3.0%, DSCR splits into 1.73 and 1.45; that 0.28 gap is about 4.7 times the 0.06 attributable to the rule change. Put differently, the social insurance expansion is not large enough to sway the discussion of financing terms. It is still worth placing in the annual model because, with the effective dates fixed, leaving it out guarantees the model will miss — and the amount is small enough that including it will not make the modeler look overly conservative.

The same exercise for the 30-room ryokan model (A): with a ¥360 million purchase price, NOI of ¥18 million (5.0% yield), 55% LTV, 2.2% interest and a 20-year term, annual debt service is ¥12.34 million and DSCR is 1.46. Absorbing the ¥1.177 million annual increase from October 2032 with zero pass-through lowers DSCR to 1.36. Here too, the same rule change bites relatively harder the lower the occupancy and the smaller the property. Conversely, this is also the segment with the most room to absorb the cost by lifting the occupancy floor and designing room rates.

Summary — A Cost with a Visible Timetable Can Be Priced In

To sum up, four points.

1. The real step is the employer-size requirement. The October 2026 removal of the wage requirement lost practical meaning once the minimum wage passed ¥1,016 and creates almost no cost step. The four dates to place in the annual model are October 2027 (36+), October 2029 (21+), October 2032 (11+) and October 2035 (abolished).

2. The count is pension-insured employees, not headcount. In lodging, with its high share of part-time workers, the number of people on staff and the number used for the test differ sharply. When your own company is brought in depends on how many full-time equivalents it has.

3. Occupancy determines the per-room burden. The three models’ required ADR pass-through rates — 0.67%, 1.11% and 2.06% — differ threefold, but the gap comes from differences in annual room-nights sold, not wage levels. Raising the occupancy floor directly compresses the required pass-through.

4. The price impact shows up in valuation more than in DSCR. DSCR falls by only about 0.06, but capitalized at a 5.0% cap rate the cost equals 3.7% of the purchase price. The more a buyer wants to sharpen its bids, the more it pays to place the cost year by year.

Faced with a rule change, the hardest cost to handle is one whose timing is unknown. This expansion is the opposite: its arrival dates are fixed by law. For the nine years from 2027 to 2035, the business plan can state how much lands in which year. Being able to write it down also means being able to choose, before each year arrives, whether to absorb it through occupancy, rate or productivity. Cutting labor hours through labor-saving investment is one option, and subsidies for such investment can shorten the payback period; securing staff, including through Japan’s Specified Skilled Worker program, is another lever worth examining alongside it.