Nubank Q1 2026: First $5 Billion Revenue Quarter, 135 Million Customers

Nu Holdings (NYSE: NU), the parent company of Nubank, reported its strongest quarter on record on May 14, 2026, posting revenue of $4.97 billion under accounting standards and $5.32 billion on a managerial basis, the first time the company has crossed the $5 billion threshold in a single quarter. Net income reached $871 million, up 41% year-over-year, while the customer base crossed 135.2 million globally, adding roughly 4 million users in the first three months of 2026 alone.[1]

Record Scale Across Every Metric

The quarter was notable not for any single data point but for the breadth of the acceleration. Nubank's total credit portfolio expanded 40% year-over-year to $37.2 billion, driven by a 36% increase in credit card balances, 53% growth in unsecured lending, and 38% growth in secured lending. Total deposits rose 22% to $42.4 billion, funded at 88% of interbank rates, a structural cost advantage that contributes directly to the company's industry-leading efficiency ratio of 17.6%, improved from 19.9% in the prior quarter.[1][2]

Return on equity held at 29%, up from 27% in the same quarter a year earlier, and the monthly activity rate reached 83%, reflecting a customer base that is deepening its engagement rather than merely growing in number. Monthly average revenue per active customer approached $16, a 23% year-over-year increase that signals meaningful monetization progress beyond basic accounts.[2]

Metric — Q1 2026 — YoY Change

Revenue (accounting) — $4.97B — +53%

Revenue (managerial) — $5.32B — +58%

Net income — $871M — +41%

Total customers — 135.2M — +17%

Total credit portfolio — $37.2B — +40%

Total deposits — $42.4B — +22%

Return on equity — 29% — +200 bps

Efficiency ratio — 17.6% — -230 bps

ARPAC (monthly) — ~$16 — +23%

The Americas Footprint Takes Shape

The geographic story of Q1 2026 is the clearest articulation of Nubank's full-Americas thesis. Brazil anchors the platform with more than 115 million customers, making Nubank the country's largest private financial institution, with roughly 7% of a domestic addressable profit pool exceeding $100 billion annually.[1]

Mexico crossed a strategic threshold in Q1 by achieving break-even, doing so faster than Brazil reached the same milestone. The Mexican customer base now exceeds 15 million, a roughly seven-fold increase in four years, and the unit's monthly average revenue per active customer has nearly doubled over that period. Nubank described Mexico as now holding the position of the third largest financial institution in the country by customer count.[1]

Colombia continued its expansion trajectory, approaching 5 million customers and contributing another quarter of net additions. The US market remains a deliberate long-term project: in January 2026, Nubank received conditional approval from the Office of the Comptroller of the Currency (OCC) to establish a national bank under the name Nubank N.A., a milestone that opens the pathway to accepting deposits, extending credit, and eventually offering digital assets to US consumers. Management has committed to keeping US investment below 100 basis points of the consolidated efficiency ratio annually through 2027.[2][3]

Geography — Customers — Status

Brazil — 115M+ — Largest private financial institution

Mexico — 15M+ — Break-even achieved Q1 2026

Colombia — ~5M — Expanding; net additions each quarter

United States — Pre-launch — OCC conditional charter approved Jan 2026

This Americas build-out is unfolding alongside, not despite, the accelerating global neobank market. A Simon-Kucher study published in March 2026 found that digital-first banks now serve more than 1.4 billion accounts worldwide, growing at a compound annual rate of approximately 13%, with revenue per customer up 30% from 2021 to 2025.[4] Nubank, with 135 million customers and an efficiency ratio well below 20%, sits at the profitable frontier of that wave, positioned similarly to how Revolut is targeting Mexico and Monzo has signaled US ambitions, though at a scale neither has approached in the Americas.

AI as Operating Infrastructure

David Velez, founder and CEO of Nubank, framed the company's artificial intelligence investment not as a feature set but as a foundational rebuild:

"Our AI transformation is a core priority of Nu. We are not adding AI to banking, we are rebuilding banking around AI. NuFormer, our proprietary set of foundation models, is in production today for credit card in Brazil and Mexico, and for unsecured lending in Brazil. Our AI Private Banker functionalities already serve more than 15 million monthly active users. These capabilities have been a meaningful driver of the significant expansion of our credit portfolio over the last twelve months, enabling us to grow limits with resilience, not just speed."

The NuFormer foundation model is pricing and approving every personal loan request individually in under a second, drawing on first-party behavioral data from 135 million transacting customers. Engineering throughput increased 50% year-over-year, testing cycles ran 90% faster, and weekly token consumption reached nearly ten times the level recorded at the start of 2026, all attributed to AI-native tooling embedded across the development workflow.[1]

Cristina Junqueira, co-founder of Nubank, captured the trajectory from a different angle in a post following the results:

"We understood, from early on, that business profitability was a natural consequence of investing in the single best customer service, experience, and products. And here we are: our most profitable quarter ever, with Nu Mexico reaching breakeven even faster than Brazil, proving that our model is scalable and adaptable."

The EPS Miss in Context

Markets reacted negatively to a headline earnings-per-share figure of $0.19, which missed the consensus estimate of $0.20 by one cent. The stock fell 5.7% in the sessions following the report. The miss obscured structural positives: EPS still represented a 58% year-over-year increase, revenue was broadly in line with expectations, and 19 analysts maintained buy ratings against 2 holds.[2]

CFO Guilherme Lago framed 2026 as an investment year, citing a return-to-office policy taking effect July 1 that carries an 80 to 100 basis point efficiency-ratio impact, alongside increased GPU and AI infrastructure spending. The efficiency ratio guidance for the full year remains approximately 20%, consistent with the 2025 exit rate.[2]

Early-stage non-performing loans rose to 5.0% from 4.1% quarter-over-quarter, and Brazil's fintech income tax is stepping up toward 45% in 2026, two headwinds management acknowledged without revising its full-year efficiency guidance.[2]

What Q1 2026 confirmed is that Nubank at 135 million customers and $5 billion in quarterly revenue is no longer a challenger bank story. It is the story of a company that built the largest digital banking franchise in history by customers, is deeply profitable, and is methodically extending the same model across an entire hemisphere.

References

[1] Nu Holdings Ltd., "Nu Holdings Ltd. Reports First Quarter 2026 Financial Results," May 14, 2026. https://www.businesswire.com/news/home/20260514553909/en/Nu-Holdings-Ltd.-Reports-First-Quarter-2026-Financial-Results

[2] Zacks Equity Research, "NU Stock Falls 5.7% Since Missing Q1 Earnings, Revenues In Line," Yahoo Finance, May 18, 2026. https://finance.yahoo.com/markets/stocks/articles/nu-stock-falls-5-7-155300709.html

[3] Banking Dive, "Nubank gets conditional OCC approval for charter," January 30, 2026. https://www.bankingdive.com/news/nubank-gets-conditional-occ-approval-charter/810981/

[4] Simon-Kucher, "Neobanks Have Grown Past Niche Status, Reaching 1.4 Billion Accounts Globally," Business Wire, March 25, 2026. https://www.businesswire.com/news/home/20260325353527/en/Simon-Kuchers-Report-Finds-Neobanks-Have-Grown-Past-Niche-Status-Reaching-1.4-Billion-Accounts-Globally

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