Median Monthly Revenue: ¥250K in Japan, ¥4.5M Overseas — Where Does the 18x Gap Come From?

If you read about “indie hacking” or “small business” in Japanese and then in English, the numbers never seem to be on the same scale. This site records Japanese and overseas cases under one schema, so that intuition can actually be checked. We split the 346 cases published as of August 17, 2026 (Japan 135, US 113, other 98) into Japan versus everywhere else.

The numbers are indeed on different scales

18x at the revenue median, 65x at the sale-price median. Japan’s top quartile (¥1M) doesn’t reach the overseas bottom quartile (¥1.5M). On the numbers alone, a rout.

But reading this table as “you can only build small in Japan” is too fast. These are not distributions on the same field. Here is where the gap is manufactured, in order.

Four structures manufacturing the gap

The provenance differs. Most overseas cases enter the record via media like Indie Hackers or They Got Acquired, outlets that write you up after success is confirmed. An overseas case earning ¥50K a month never gets caught in the English-language net. Japan, meanwhile, has a culture of self-documenting the process on note and blogs from the earliest, smallest stages, and this site deliberately collects those. We publish the stock-photo hustle at ¥40K a month and the game portfolio at ¥700 lifetime. Japan’s median is low partly because small numbers get published at all. The overseas distribution arrives with its left half missing.

The business mix differs.

Japan’s largest bucket is offline businesses (restaurant successions, vending machines, rental spaces) where monthly revenue is bounded by physics: location and seat count. Nearly half the overseas sample is SaaS. Of our 105 SaaS cases, just 6 are Japanese. Since median revenue differs across business types by more than 50x, comparing whole regions with these mixes guarantees a gap. Much of what looks like geography is portfolio composition.

The team structure differs. 77% of Japanese cases are solo or side projects, versus 47% overseas, the overseas median includes small teams and post-acquisition operations.

The exit market differs in layer. The 65x sale-price gap connects to the multiples column: Japan’s disclosed deals are mostly individuals passing life-scale businesses to individuals on Batonz or Rakko M&A; overseas disclosures are mostly SaaS bought by funds and operators. The transaction sizes differ because the goods on the shelf differ, not because Japanese buyers are stingy. Note that this site excludes sales at or below ¥1M, and Japan’s median still lands at ¥2M, which tells you how thick the small-deal layer is.

It is not “small because it’s Japan”

To see what remains after subtracting structure, look at Japan’s top end. The largest monthly revenue in our whole archive belongs not to an overseas case but to a Japanese online salon at ¥126M a month. A blog at ¥12.55M a month on 15M page views sits exactly at the overseas top-quartile boundary (¥12.5M). Zenn, transferred to a company 4.5 months after launch, gives up nothing in speed. The Japanese-language market is less than a tenth of the English one, but the absolute values of Japan’s top cases are nowhere near ten times apart.

In that sense, what we are watching is the succession records that have multiplied on the Japanese side this past year or two: bookstores, pharmacies, soba shops, vending machines, individuals taking over already-running businesses for a few million yen through Batonz and TRANBI, with names and stories published. The goods differ, but the structure, an entry and an exit open to individuals, is the same one that powers English-language micro-M&A. The part of the 18x gap that market plumbing can close may start closing. This site will record the process.

Method and limits

The population is our published cases only, not a representative statistic of either economy. Overseas amounts are converted at ¥150/USD, so the overseas side stretches with the rate: at ¥130/USD, the overseas median shrinks to ¥3.9M, and a 15x gap remains. Region follows the operator’s base (the country field), so a Japanese founder selling globally counts as Japan. Survivor bias applies to both sides, but, as argued above, asymmetrically. That asymmetry is the single most important caveat in this piece. Definitions live on the Data page.

The solo/side revenue distribution itself is in How far can one person go?, and individual cases in the solopreneur case list.