💴 For decades, Japan's banks were the global poster child for "the country where money sits still." Zero rates, paper-thin margins, a deposit base larger than most countries' GDP, and almost no way to make it pay. On Friday, that story turned a corner: Japan's three megabanks reported a combined annual net profit of more than 5 trillion yen ($33 billion), the first time the line has ever been crossed.

The figures landed on May 15, 2026, when Mizuho Financial Group and Mitsubishi UFJ Financial Group (MUFG) released their results for the fiscal year ended March 2026, joining Sumitomo Mitsui Financial Group (SMFG), which had reported two days earlier. Combined net profit came in at 5.2588 trillion yen, up 33.9% year-on-year and a third consecutive record. None of the three megabanks even existed in their current form until 2005, when Japan's late-1990s banking crisis was finally cleaned up. Two decades on, they are starting to look less like "Japan's banks" and more like global ones.

The numbers, briefly

Group FY2026/3 net profit YoY change Milestone
MUFG (Mitsubishi UFJ) ¥2.4272 trillion ($15.3B) +30.3% First Japanese megabank ever above ¥2 trillion
SMFG (Sumitomo Mitsui) ¥1.5829 trillion ($10.0B) +34.4% Third straight record
Mizuho ¥1.2486 trillion ($7.9B) +41.0% First ever above ¥1 trillion
Total ¥5.2588 trillion ($33.2B) +33.9% First time above ¥5 trillion

Conversions use the May 15, 2026 spot rate of roughly ¥158.5 per dollar. All three groups also announced share buybacks alongside the results, SMFG up to ¥180 billion (plus a 1-for-2 stock split effective October 1, 2026), and MUFG and Mizuho up to ¥100 billion each.

For context, in fiscal 2024 the same three banks earned a combined ¥3.13 trillion. The year before that, ¥2.48 trillion. In just three fiscal years, the megabanks' combined profit has more than doubled.

What changed: the end of "the country with no interest rates"

The single biggest reason is something most Japanese people had stopped believing would ever happen, rate hikes.

For almost three decades, the Bank of Japan kept its policy rate at zero or below. Deposit rates were a rounding error: a megabank ordinary savings account paid 0.001% as recently as March 2024, which on a one-million-yen balance worked out to about 10 yen of annual interest. Loan margins were just as thin. The whole banking sector ran, in effect, on the assumption that "the country has no interest rates."

That ended in March 2024, when the BOJ lifted its negative-rate policy. The central bank then raised the policy rate in steps to 0.5% in early 2025 and 0.75% in December 2025, with the three megabanks raising ordinary deposit rates to 0.3%, the highest such rate at Mitsubishi UFJ's main banking unit since 1993 (counting predecessor banks), a 33-year peak. For households, that's still modest. For the megabanks, which sit on hundreds of trillions of yen in deposits, the gap between what they pay on deposits and what they earn on loans (the "net interest margin") finally widened into something worth fighting over.

The combined net interest margin at the three megabanks averaged 1.04% in the nine months from April to December 2025, the highest in eleven years. Net interest income at the three groups' core banking units rose 17% year-on-year to a record ¥3.81 trillion. Add to that booming M&A advisory fees, real-estate brokerage income, and, particularly at MUFG, earnings from the long-running Morgan Stanley stake, and you have the recipe for the jump from "respectable" to "first time above 5 trillion yen."

Mizuho's quiet star turn

Of the three, the most interesting story may belong to the smallest.

Mizuho posted a 41% profit jump, the fastest of the trio, and broke the 1-trillion-yen mark for the first time in its history. CEO Masahiro Kihara told reporters that non-interest businesses such as fee income were "extremely strong," with cross-border M&A advisory mandates lifting results following a string of overseas investment-bank acquisitions. The 2023 purchase of US boutique Greenhill, long viewed as Mizuho's underdog play, is now paying back.

MUFG, the largest of the three, did what was expected of it: cleared 2 trillion yen for the first time, on the strength of overseas lending margins and Morgan Stanley's contribution. It is guiding to 2.7 trillion yen for fiscal 2027, up 11.2%, which would be a fourth straight record. The headline number is impressive in isolation but understates how much of MUFG's profit is geographically diversified. SMFG, in the middle, leaned harder on domestic loan growth and was the most aggressive about selling down cross-shareholdings, the long-criticized practice of holding stock in client companies to cement relationships.

How does ¥5 trillion stack up against Wall Street and London?

This is where the picture gets less triumphant.

JPMorgan Chase, the largest US bank, posted a 2025 calendar-year net income of $57 billion, with an 17% return on equity and 20% return on tangible common equity, on total assets of $4.4 trillion. JPMorgan alone earns roughly 1.7 times what all three Japanese megabanks combined produced. HSBC, Europe's largest lender, reported 2025 pre-tax profit of $29.91 billion on revenue of $68.27 billion, although that was 7% below the prior year due to one-off items from divestitures.

In other words, even at a fresh all-time high, Japan's three biggest banks together are smaller than JPMorgan by themselves, and roughly comparable in scale to HSBC on a pre-tax basis. The gap reflects two structural facts the rate cycle alone can't close: Japanese banks earn much of their money domestically in a shrinking population, and US banks operate in a deeper, fee-rich capital market that rewards investment-banking footprints Japan simply doesn't have at home.

That gap is precisely why MUFG, SMFG, and Mizuho have spent the last two years acquiring or partnering with US and European investment banks. JPMorgan itself is now guiding to roughly flat net interest income in 2026 as the rate-cut tailwind fades, a reminder that Japan and the rest of the developed world are, unusually, moving in opposite directions on monetary policy.

The yen scenario: a tailwind that could reverse

Here is where the next chapter gets uncertain.

A substantial share of MUFG's profit, roughly 40% or more in recent years, comes from outside Japan, and the share is meaningful for SMFG and Mizuho too. Right now, those overseas earnings are translated back into yen at around ¥158 per dollar, near the weakest level in decades, after the dollar pushed higher on accelerating US inflation tied to the Middle East conflict and the absence of decisive currency intervention from Japanese authorities. A weak yen inflates the headline.

If the BOJ continues to raise rates while the Federal Reserve eventually starts cutting, the dollar-yen gap narrows and the yen strengthens. That helps Japanese consumers paying for imported energy and food. It hurts the megabanks' translated overseas earnings. Several Tokyo brokers' fiscal 2027 forecasts already assume a stronger yen, which is partly why guidance for next year looks restrained relative to the actual fiscal 2026 print.

The three banks themselves are projecting a combined ¥5.7 trillion in fiscal 2027 net profit, only about 8% above the just-reported result, conservative by any reading. MUFG President Junichi Hanzawa told reporters that supply-chain risks from the worsening Middle East situation "may surface more visibly in Southeast Asia than in Japan," and the group has booked an additional ¥25 billion in precautionary credit reserves.

"The country with no interest rates" is now the country watching its rates

There is a real argument that the megabanks' record-setting year is the predictable mechanical consequence of a single policy event: the end of negative rates. Hold that argument up to the long sweep, though, and something more interesting comes into view.

For thirty years, Japan exported low rates to the world. The yen carry trade, borrow yen cheaply, park it in higher-yielding assets abroad, shaped capital flows from emerging-market bonds to US tech stocks. Every time global investors got nervous, the unwinding of those positions rippled through markets, as it did during the global selloff of August 2024. As the BOJ continues to normalize, the size and stability of that trade is changing. Japanese institutions have less reason to chase yield abroad. Japanese savers, for the first time in a generation, have something other than zero on offer at the bank counter. Some of that ¥1,000 trillion sitting in household deposits may finally start to move.

Whether that is good or bad depends mostly on where you stand. For Japan's exporters and overseas earners, a stronger yen is a headache. For ordinary households, deposits that pay actual interest are a small but real improvement after a generation of nothing. For the global financial system, the slow withdrawal of Japan as the world's reliable source of cheap funding is one of the bigger structural shifts of the decade, even if it doesn't make front pages outside Tokyo.

The 5-trillion-yen line was psychologically important inside Japan, the moment the "mega" in megabank stopped feeling aspirational and started feeling earned. From the rest of the world, the more interesting number may be a different one entirely: how much of those record profits actually reach savers, borrowers, and the real economy in the years ahead.

How they spend what they earn

Plenty of Japanese readers will come away from this news with a quiet unease. Public money to survive a crisis, recurring misconduct in peacetime, a structurally guaranteed margin business, and now a record profit on top of all that. It is hard to feel sure the megabanks are still doing the public-utility job they were once chartered for, and that makes this a reasonable moment to ask where the money goes next.

In Japan, savers are getting their first taste of meaningful interest income in three decades while homeowners on variable-rate mortgages are watching their monthly payments creep up. The same rate cycle is producing very different feelings depending on which side of the bank counter you sit on. How are people in your country experiencing the post-pandemic interest-rate era? We'd love to hear what it looks like where you live.

Update (June 16, 2026)

The further rate hike this article treated as a possibility arrived a month later. At its June 15-16 meeting the Bank of Japan raised the policy rate from around 0.75% to around 1.00%, the highest level since 1995, on a 7-1 vote among the eight members present. By SMFG's own estimate, each 0.25-point rise in the policy rate adds roughly 110 billion yen to profit in the first year.

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