Retail Banking in the United States vs the European Union

Comparative deep research on customer acquisition costs, digital adoption, and product penetration

Scope, definitions, and data approach

This report compares the U.S. and EU retail banking markets across three strategy-critical dimensions: customer acquisition costs (CAC), digital adoption, and product penetration of core products (deposits, personal lending, cards, and wealth-related services). It emphasizes recent, authoritative statistics (regulators, official statistical agencies, and central bank / banking federation publications) and supplements with industry benchmarking and strategy research.

FactSet is relevant for bank-level benchmarking because it aggregates and normalizes bank financials and sector analytics used in competitive intelligence and peer comparisons. In particular, FactSet’s banking and industry offerings are positioned to support bank screening and comparative analysis (e.g., peer sets, bank financials, and sector performance workflows).

However, customer acquisition cost is not consistently disclosed as a standardized line item in bank financial statements; it usually must be inferred from a combination of marketing/sales expense, onboarding incentives, and channel-driven operational cost allocation. As a result, this report uses (a) observed industry benchmarks for CPA/marketing cost-per-account where the source publishes them, and (b) issuer-reported directional indicators (e.g., “cost of acquisition per client down X%”) where absolute CAC is not disclosed.

Definitions used:

• Customer acquisition cost (CAC / CPA): all-in or campaign-level cost to acquire a new retail relationship, often measured per new customer/account (CPA) and sometimes distinguished from marginal CPA for incremental growth.

• Digital adoption: consumer use of online/mobile banking to access accounts and execute banking activities; for the EU, Eurostat’s “internet banking” usage (used in last 3 months) is treated as a standard cross-market measure.

• Product penetration: customer uptake of key products (transaction/deposit accounts, consumer credit, cards, wealth/investment services). Because product taxonomies and reporting differ across the U.S. and EU, penetration is assessed via a mix of official inclusion/account ownership indicators, payments behavior, and bank-reported product adoption examples.

Market overview and baseline structural differences

The U.S. retail banking market is characterized by a large insured depository footprint and high household account ownership. In 2023, 95.8% of U.S. households were “banked” (at least one checking or savings account), and 4.2% were unbanked; 14.2% were underbanked (using nonbank products/services as their primary way to meet financial needs despite having an account). This combination—high account ownership but persistent underbanking—matters for CAC: competition is less about “first account” acquisition and more about winning the primary relationship and share-of-wallet profit pools.

The EU retail banking market is structurally more fragmented (country-by-country languages, consumer preferences, and national market structures) while operating under shared rulemaking for key areas (payments, consumer protection, and prudential frameworks). Digital adoption is high at the EU aggregate level, but dispersion is wide across regions—creating markedly different acquisition and servicing economics depending on the local market (high-digital vs low-digital). In 2024, 67.2% of the EU population (age 16–74) used internet banking in the prior 3 months, up from 54.6% in 2019.

Physical infrastructure trends also differ and shape channel economics. EU banking statistics show continued decline in cash infrastructure consistent with digital migration: the EU had 319,573 ATMs in 2023 (about 1,140 fewer than 2022) and about 2,143 inhabitants per ATM—a shift the source explicitly links to lower cash demand and increasing digital banking/payments.

A major macro-competitive difference affecting deposit product behavior (and thus acquisition strategy) is the intensity of competition from money market funds in the U.S. versus Europe, highlighted by large flow differentials during market stress: Deloitte notes that during U.S. banking turmoil in March 2023, U.S. money market funds saw very large inflows compared to much smaller inflows in Europe, implying stronger nonbank substitution pressure on U.S. bank deposits and, by extension, higher “price + marketing” acquisition intensity in U.S. deposits.

Customer acquisition cost analysis

What drives CAC differently in the U.S. and EU

Retail banking CAC is influenced by three interacting forces: (1) how rare net-new-to-bank customers are, (2) how expensive your acquisition channel mix is, and (3) how large and fast your onboarding + KYC/AML cost base is per conversion. These are shaped by regulation (identity/KYC, payments fraud controls), market structure (switching friction, primary-bank inertia), and channel shift (branch vs digital).

In the EU, regulators and supervisors explicitly identify payments fraud and consumer risk issues as major trends, and fraud control requirements can raise onboarding friction and operational cost—particularly for digitally acquired customers. The European Banking Authority’s consumer trends work identifies payment fraud, indebtedness, and de-risking as top issues for EU consumers, and discusses the role of Strong Customer Authentication (SCA) and evolving payment rules in shaping customer experience and risk controls.

In the U.S., the cost side of acquisition is also pressured by fraud and scams, but the measured market outcome is clear: as mobile becomes the dominant access channel, banks must fund both (a) growth marketing and (b) digital risk/controls, while traditional channels lose volume but not all fixed cost.

U.S. CAC benchmarks: level and range by segment and channel

The most decision-useful CAC benchmarks are those that break out (a) product-led acquisition (e.g., checking vs high-yield savings), (b) customer segment (mass vs affluent), and (c) channel (e.g., direct mail vs digital).

Curinos’ U.S. retail banking benchmarking illustrates both the magnitude and the inflation of acquisition costs:

• For branch-based checking acquisition, Curinos cites an average $293 cost per acquisition (CPA) for checking customers at branch banks (2019).

• Curinos also reports a sharp increase in average acquisition cost over time: average CPA rose 69% from $437 (2019) to $743 (2022), while marginal CPA rose from $1,820 to $2,322 over the same period—evidence that “each incremental customer” becomes meaningfully harder/more expensive to acquire as a bank pushes beyond its natural share.

• Channel mix can create extreme CAC outcomes: using a cross-bank marketing dataset, Curinos notes that banks using direct mail consistently in the first half of 2022 saw CPA rise to more than $1,000, from under $500 earlier in the year.

Curinos also provides a practical segmentation view for deposit-led acquisition economics (marketing cost per account), highlighting how CAC varies with relationship value and deposit economics:

• Mass-market checking: ~$250 average marketing cost per account

• Affluent checking: ~$1,000 average marketing cost per account

• Direct-bank high-yield savings: ~$400 average marketing cost per account

These figures support a core strategic conclusion for U.S. banks: CAC is not a single number; it is a portfolio outcome driven by (1) which product is used as the “hook”, (2) how expensive the channel is, and (3) how aggressively the bank competes for incremental growth.

EU CAC evidence: directional trends plus “digital vs subsidized” acquisition models

EU-wide “absolute CAC” is less consistently disclosed publicly by large incumbent banks, but several EU-based sources provide strong directional signals and model distinctions.

A key EU pattern is the coexistence of:

• Low-subsidy, viral/referral-led acquisition (often associated with neobanks/mobile-first challengers), and

• Subsidized acquisition (welcome bonuses and commercial spend, often seen in online banks competing to become the primary account).

A French prudential supervisor report on neobanks explicitly distinguishes these models, noting that where customer acquisition is not subsidy-driven (i.e., no opening bonuses), CAC is estimated at “a few tens of euros,” which is presented as materially less burdensome to profitability than models that rely on customer subsidies.

A concrete EU example of subsidized, high-growth acquisition at scale is BoursoBank (France). Its 2022 annual results communication reports a record year with +1.5 million new clients (about double versus 2021), alongside a 20% decline in cost of acquisition per client. This provides credible direction on CAC optimization (down) even while scaling acquisition volume (up), consistent with (a) better targeting, (b) improved funnel conversion, and/or (c) more efficient incentive use.

Société Générale’s mid-2024 reporting further reinforces that acquisition cost is actively managed as a steering lever: in Q2 2024, BoursoBank acquired over 300,000 new clients, while reporting cost of acquisition per client down 14% versus the prior quarter.

Comparative CAC synthesis: what an executive should take away

In the U.S., published benchmarks show a wide CAC band from “efficient checking acquisition” (~$293) to “high-pressure channels” (> $1,000), and evidence of strong inflation in acquisition costs from 2019 to 2022.

In the EU, available supervisory and bank disclosures emphasize (1) structurally lower CAC possibilities in low-subsidy digital models (tens of euros), but (2) continued reliance on commercial spend and incentives to drive primary-account switching at scale, while leading digital banks report active reduction of acquisition cost per client even during high growth.

Digital adoption rates and channel migration

Digital adoption is now central to retail banking economics because it reduces per-transaction servicing costs, increases product cross-sell capacity (via in-app distribution), and changes the “shape” of CAC (more performance marketing, fewer branch-driven acquisitions). It also increases exposure to fraud/scams and operational risk in digital onboarding.

EU digital adoption: high and rising, but with major regional dispersion

The EU’s baseline internet banking usage is high and rising. Eurostat reports that in 2024, 67.2% of EU residents age 16–74 used internet banking in the past 3 months, up from 54.6% in 2019.

The strategic detail is dispersion: Eurostat’s regional view shows extreme variation in “ceiling” markets vs “catch-up” markets. In 2024, the Utrecht region (Netherlands) reached 98.3%, while the lowest reported regional use includes Sud-Vest Oltenia (Romania) at 17.6%—a gap that implies fundamentally different channel and servicing strategies across the EU.

The charts embedded earlier visualize (1) growth in EU-wide adoption and (2) the scale of EU internal heterogeneity based on Eurostat’s reported figures.

Payments behavior provides an additional “revealed preference” signal for digital adoption in the euro area. The ECB’s SPACE 2024 release states that digital payments continue to rise, but cash remains significant—highlighting a still-transitional environment rather than a fully digital equilibrium. A separate euro area central bank summary also notes that digital instrument use is increasing and that mobile phone app usage is rising.

U.S. digital adoption: mobile becomes the dominant access channel

In the U.S., the FDIC’s 2023 household survey results underscore that digital is not merely “adopted” but increasingly dominant. The FDIC reports that 48.3% of banked households used mobile banking as their primary method of account access in 2023, and that over the past decade, mobile as the primary means increased almost ninefold while teller use fell by more than half and online banking (as primary) declined by more than one-third.

Two strategic implications follow:

1. U.S. banks are now competing in a market where the mobile app is the primary “branch.” This reshapes acquisition and retention: onboarding UX, in-app monetization, and digital servicing quality become primary drivers of lifetime value.

2. The U.S. market’s underbanked segment (14.2% of households) indicates that even with high access and mobile primacy among the banked, substantial customer needs persist around affordability, liquidity management, and trust—areas where digital alone does not solve the problem without targeted product design.

Comparative digital adoption summary table

Product penetration levels across core retail banking products

Because disclosure conventions differ across the U.S. and EU, product penetration is assessed with a pragmatic mix of (a) household inclusion/ownership metrics, (b) payments behavior indicators, and (c) bank-reported product adoption examples where available.

Deposit and transaction accounts

In the U.S., deposit/transaction account penetration is effectively near-universal at the household level: the FDIC reports 95.8% of households were banked in 2023.
The remaining penetration challenge is primarily (1) reaching the unbanked (4.2%), and (2) converting “banked but underbanked” households into full-service relationships through better product fit and trust.

In the EU, account holding is also broadly high, but the more comparable published statistic in the sources gathered here is usage of online banking rather than account ownership. Eurostat’s 2024 internet banking usage (67.2%) indicates that a large majority of adults interact with banking digitally, while also implying that a substantial minority either choose not to use digital channels or face access constraints.
EU deposit product volumes remain very large: EBF-compiled EU banking statistics report deposit liabilities in the EU decreased 1.2% to ~€24.8 trillion in 2023, and “deposits from non-MFIs excluding central government” grew to €17.3 trillion.

Personal loans and consumer credit

Consumer lending penetration is best interpreted through both balances and customer-level presence. EU consumer risk monitoring highlights indebtedness as a top consumer issue, and frames it alongside cost-of-living pressures, interest rate changes, and digital distribution expansion of credit facilities.

This is consistent with a market reality: as acquisition shifts digital, banks can distribute consumer credit more efficiently, but must manage conduct, affordability, and credit risk.

For the U.S., credit usage is visible in household balance data: the New York Fed’s Household Debt and Credit reporting indicates credit card balances totaling about $1.23 trillion (as of the referenced update). While balances do not equal penetration, they highlight the scale of revolving credit in U.S. household finance and the strategic importance of cards as both a credit product and a payments rail.

Credit cards and payments-linked products

In the euro area, central bank evidence shows cards as a major (and still expanding) part of consumer payment behavior, even while cash remains meaningful. The ECB SPACE 2024 release emphasizes continued digital payment growth with cash still significant for many use cases.

This matters for product penetration because EU card economics differ from U.S. economics (interchange constraints and market structure), affecting how aggressively cards are used as acquisition hooks and cross-sell products.

In the U.S., cards are both a payments product and a major profit pool, and trends in balances and delinquency dynamics (tracked by U.S. monetary and banking statistics institutions) reinforce that cards remain central to retail banking product portfolios.

Wealth management and mass-affluent investing services

Wealth penetration is increasingly a retail banking battleground because digital distribution allows banks to serve mass-affluent segments with lower marginal cost, while fintech brokers and platforms compete for flows.

A useful EU example of product deepening is BoursoBank’s reporting of broad product usage expansion: it states that more than 4.5 million products were subscribed in 2022, spanning a wide range of offerings, alongside average balances/“encours” per client above €15k and majority usage as a primary bank (over 51%). This illustrates a core penetration playbook: scale low-friction digital acquisition, then drive product equipment over time (deposits, cards, credit, savings/investment).

In Germany (an adjacent strategic reference for EU retail banking), McKinsey’s retail banking survey evidence emphasizes declining branch visitation concentration (a minority of customers account for most visits), consistent with a servicing and advisory model that must shift from branch to digital/hybrid, an enabling condition for scaling wealth offerings digitally.

Key market trends shaping U.S. and EU retail banking and the “white space” they create

Regulatory and risk trends: fraud, authentication, and consumer protection as growth constraints

In the EU, payment fraud is repeatedly identified as a top consumer issue, and regulatory evolution (PSD3/PSR proposals, instant payments rules, SCA enforcement) is framed as a primary lever for mitigating fraud while maintaining usability. This raises the strategic value of superior fraud controls that do not degrade customer experience—creating a competitive wedge for banks that can reduce friction while improving safety.

Whitespace opportunity (EU): “trust + safety as a product.” Banks can differentiate by offering default-secure payments and onboarding experiences (e.g., proactive scam detection, safer payee verification flows, simpler dispute pathways), especially in lower-adoption regions where security concerns and digital literacy constraints are explicitly noted as barriers.

In the U.S., underbanking persists despite high account ownership, signaling unmet needs around liquidity, affordability, and confidence.

Whitespace opportunity (U.S.): rebuild the primary relationship through “financial health primitives.” Products that reduce fee shocks, smooth income volatility, and improve transparency can directly address underbanked behaviors and potentially reduce CAC through retention and referrals (lower churn implies lower replacement acquisition).

Technology and channel trends: mobile primacy, declining cash infrastructure, and embedded acquisition

In the U.S., mobile is now the primary account access method for nearly half of banked households, making app experience a first-order strategic driver. In the EU, ATM decline and high internet banking usage growth indicate continued migration from cash-centric to account-centric digital behavior—though unevenly distributed.

McKinsey’s research on embedded finance in Europe provides a relevant acquisition channel insight: in one major European market, the acquisition cost of a qualified SME lending lead is reported as 15–20x higher than an embedded finance lead, illustrating how distribution partnerships can materially change acquisition economics. While SME lending is not identical to retail, the mechanism generalizes: acquiring customers “in context” (via ecosystems) can be structurally lower cost than competing head-to-head in saturated direct channels.

Whitespace opportunity (U.S. and EU): embedded distribution for retail banking “moments.” Retail banking can pursue ecosystem acquisition in payroll, e-commerce checkout, mobility, housing/rent, and SMB-to-consumer platforms—particularly where direct marketing CPAs are inflated.

Competitive dynamics: deposit competition and the CAC–LTV gap

Deposit acquisition competition is structurally intense in the U.S. where money market funds provide a readily accessible alternative yield product; Deloitte’s cited flow contrast around March 2023 underscores the difference in competitive pressure relative to Europe. This tends to increase both rate-based acquisition cost (interest expense) and marketing CAC (paid acquisition for incremental growth).

In both regions, the economically sustainable path is to narrow the CAC–LTV gap by (1) reducing acquisition cost, and (2) improving product penetration post-acquisition. BoursoBank’s reporting illustrates that scale players actively manage acquisition cost as a steering lever while driving product adoption.

Whitespace opportunity (U.S. and EU): post-acquisition monetization via “equipment pathways.” Banks that engineer explicit product equipment journeys (checking → savings → card → installment lending → investing/insurance) can amortize CAC more effectively—especially in markets where standalone checking acquisition has long payback periods.

Five-slide executive briefing outline

Market overview and key metrics comparison

Narrative: U.S. and EU retail banking are both digitally shifting, but they differ in market structure (single-market vs multi-market), cash-to-digital transition pace, and deposit competitive dynamics. Anchor the comparison with a small dashboard of “most comparable” indicators drawn from official sources.

Visuals:

Table with baseline indicators:

• U.S. banked households (95.8%), unbanked (4.2%), underbanked (14.2%).

• EU internet banking usage in 2024 (67.2%) vs 2019 (54.6%).

• EU ATM count (319,573) and inhabitants per ATM (2,143) showing physical-to-digital migration.

• Callout box: EU internal dispersion (98.3% vs 17.6% regional extremes).

Customer acquisition cost analysis

Narrative: CAC is a portfolio outcome. In the U.S., published benchmarks show high inflation and channel-driven volatility; in the EU, supervisory evidence and bank disclosures show two competing acquisition models (low-subsidy digital vs subsidized switching), with active CAC management.

Visuals:

• Comparative CAC benchmark table (illustrative, source-anchored):

Talking points:

• U.S. acquisition inflation implies urgency to shift mix toward lower-cost channels and improve conversion.

• EU heterogeneity means “one CAC strategy” will fail; banks need market-by-market segmentation.

Digital adoption trends

Narrative: The U.S. is in a mobile-primacy state; the EU is in a high-but-uneven digitalization state, with meaningful persistence of cash in parts of the euro area.

Visuals:

• Use the embedded charts (EU 2019→2024 adoption and EU dispersion).

• Small KPI callout: U.S. mobile as primary access (48.3% of banked households).

• Supporting note: ECB highlights ongoing shift toward digital payments with cash still significant.

Executive interpretation:

• U.S.: app quality and digital servicing drive retention and cross-sell.

• EU: growth requires tailoring to regional digital readiness; low-adoption regions represent both challenge and opportunity.

Product penetration insights

Narrative: The economic winner is the bank that converts acquired relationships into multi-product households. Benchmarks show high U.S. account ownership but persistent underbanking; EU players provide examples of product equipment scale in digital-first models.

Visuals:

• “Penetration ladder” schematic: Account → Deposits/Savings → Cards → Consumer credit → Investing/Insurance.

• Evidence callouts:

  • U.S. underbanked households (14.2%) as unmet-needs segment.

  • BoursoBank: 4.5M product subscriptions (2022) and >€15k average encours per client as evidence of equipment economics.

  • Euro area: digital payment growth but cash still significant—implications for card-led strategies vary by market.

Strategic recommendations and whitespace opportunities

Narrative: Competitive advantage comes from reducing CAC while raising LTV through product equipment, delivered through trusted digital experiences with strong fraud protection.

Priority recommendations (structured for executives):

1. Treat CAC as a managed portfolio: optimize by product, segment, and channel; reduce reliance on structurally expensive channels where CPA volatility is high.

2. Build “trust products” into digital (especially EU): differentiate using superior, low-friction fraud prevention and consumer protection, aligned to what EU regulators flag as top consumer issues.

3. Engineer product equipment pathways to amortize CAC: use checking or savings acquisition as the “entry,” but measure success on multi-product adoption and primary-bank conversion (BoursoBank’s reporting illustrates the model).

4. Pursue embedded acquisition where direct acquisition costs inflate: EU evidence on embedded finance acquisition economics supports prioritizing ecosystem distribution for selected journeys.

5. Target inclusion-driven growth:

   • U.S.: underbanked segment as a large addressable market for better-fit products and digital-first servicing.

   • EU: low-adoption regions as whitespace for simplified onboarding, digital literacy support, and hybrid service designs.