Every quarter, many Mexican fintechs allocate more budget to digital campaigns and still get fewer activated users for each peso invested. The consequence usually shows up in an increasingly high Customer Acquisition Cost (CAC), an indicator that worries both growth teams and marketing directors and CEOs. Before assuming that the solution is to increase media investment, it is worth analyzing whether the problem really lies in the market, in the creativity of the campaigns or in the quality of the audience being attracted. The increase in CAC in fintechs is due to a combination of factors.
Competition for the same user segments has intensified, advertising platforms are increasingly expensive, and consumers demand greater trust before opening an account, applying for a loan or signing up for a financial product. In this context, optimizing the budget means reviewing the entire acquisition strategy and not only the performance of the ads.
Fintech market growth has also raised competition for users
Mexico has established itself as one of the most dynamic fintech markets in Latin America. National and international companies compete to attract users through savings, payments, investment, credit and digital banking products. The sector’s growth has widened opportunities, but has also increased pressure on acquisition channels.
McKinsey notes that Latin America is one of the fastest-growing regions for fintechs worldwide. However, the environment also demands a much more disciplined focus on profitability and commercial efficiency than during the years of accelerated expansion.
In other words, today it is not enough to attract more users: it is essential to do so profitably.
Why does CAC rise even when campaigns seem to be working?
In many organizations the dashboard shows good indicators of clicks, reach and even lead generation. However, the real problem appears when those prospects don’t end up becoming active users.
The most frequent causes include:
- Greater competition on Google and Meta, which raises cost per impression and per click.
- Saturated audiences after months of using the same targeting.
- Creatives that stop standing out from other competitors.
- Long onboarding processes or ones with too much friction.
- Targeting focused on volume rather than purchase intent.
In these scenarios, increasing the budget only speeds up an inefficient system.
The mistake of measuring only CAC
One of the most important changes in the fintech industry is to stop analyzing CAC as an isolated metric.
McKinsey explains that the most profitable fintechs no longer make decisions considering only how much it costs to acquire a customer, but how much value they will generate throughout their relationship with the company. That is why they use the indicator LTV/CAC (Lifetime Value over Customer Acquisition Cost) together to determine whether an investment really generates sustainable growth. In Latin America, the study found that 68% of fintechs reported an LTV/CAC ratio above five, an indicator associated with healthier growth models.
For growth teams, this means an apparently high CAC can still be profitable if the customer stays longer, uses more products or increases their value over the months.
Before increasing the budget, review these five points
Many times the problem is not investing too little, but doing so on a funnel that has lost efficiency.
1. Analyze the entire funnel, not just the ads
CAC begins long before the click and ends long after sign-up. It is necessary to identify at which stage users drop off: landing page, form, identity validation, activation or first use.
2. Evaluate audience quality
The highest-volume campaigns don’t always generate the best customers. Targeting based only on reach tends to attract users with low intent to sign up.
3. Renew the creative constantly
When the same messages stay active for several months, ad fatigue reduces conversion rates. Testing new formats, testimonials, success stories and educational content can improve performance without increasing investment.
4. Strengthen trust before selling
In financial services, the purchase decision depends largely on credibility.
Several studies from the Edelman Trust Barometer show that trust directly influences consumption decisions and the perception of organizations. For a fintech, this means that reputation, transparency and the leadership of its spokespeople also affect acquisition cost, because they lower the barriers for a user to hand over their personal data or financial information.
Not all conversions happen thanks to an ad; many happen because the user already knew the brand.
5. Develop assets that reduce dependence on paid placement
Specialized content, search engine positioning, public relations, success stories and thought leadership generate organic traffic that eases pressure on paid channels.
HubSpot highlights that reducing CAC depends as much on improving conversions as on reducing exclusive dependence on paid media, through more granular measurement of performance by channel and content.
Strategic communication also impacts CAC
Marketing and communication often operate as independent areas. However, when a fintech builds reputation through media presence, executive content, visible spokespeople and a consistent narrative, part of the persuading work happens before the first ad.
Companies such as Nubank have shown that a clear value proposition, a differentiated digital experience and a recognized brand can speed up the adoption of financial products in highly competitive markets.
A well-known brand needs less effort to build trust than an unknown company.
(H2) Reducing CAC requires optimizing the strategy, not just increasing the budget
The increase in fintech CAC does not always mean the market is exhausted or that campaigns have stopped working. In many cases it reflects a combination of greater competition, changes in consumer behavior and optimization opportunities that go beyond advertising.
Before increasing media investment, organizations should review their business metrics, the quality of their audiences, the conversion experience and the role reputation and content play in the acquisition process. The fintechs that manage to balance growth, trust and commercial efficiency are the ones that build sustainable competitive advantages.
At Altavoz Comunicaciones we help companies in the financial and technology sector strengthen their positioning through corporate communication strategies, specialized content and thought leadership that help build trust, improve brand visibility and support the business’s growth objectives.
