Cross-selling in banking: What Are Fast-Growing Banks Doing That Their Competitors Aren't to stay ahead?

For banks, growth is not just about getting new customers. It is also about finding new ways to serve existing customers.

A customer who has a savings account today may need a credit card, a personal loan or another financial product in the future. The opportunity is to understand that need and offer the right product at the right time.

So, what are fast-growing banks doing differently?

They are finding ways to understand their customers better, identify relevant product opportunities and use communication to turn those opportunities into business.

1. Grow Beyond New Customer Acquisition

Acquiring new customers takes time and effort. But banks can also grow by offering relevant products to customers they already serve.

This is where cross-selling and upselling in banking become important.

• Cross-selling means offering an additional product that complements what a customer already has.
• Upselling means offering a more suitable or higher-value version of an existing product.

For example, a customer with a savings account may be eligible for a credit card. Someone who already has a loan may be interested in another financial product, depending on their needs and eligibility.

Banks are building processes to identify and act on these opportunities.

IDFC FIRST Bank's FY2025–26 Annual Report offers one example. The bank reported that its internal sourcing channels accounted for 28% of overall disbursals, with 16% year-on-year growth. These channels include branches, virtual relationship managers, direct-to-consumer platforms and its Cross-sell Centre of Excellence. The report says the cross-sell centre can distribute more than 35 products, but its share of disbursals is still relatively modest.

The bank also describes how its cross-sell centre brings together customer eligibility across products and helps identify relevant offers.

This is an example of how existing customer relationships and internal channels can support business growth. It is not an industry-wide benchmark, but it highlights an opportunity banks can explore.

Source: IDFC FIRST Bank, Annual Report FY2025–26. The report's own title is "Integrated Report 2025-26".

2. Understand Customers Across Different Touchpoints

Customers do not interact with their bank through just one channel.

They may browse the bank's website, use its mobile app, visit a branch, speak to a relationship manager or contact customer support.

Each interaction can reveal something about their needs. But when these interactions remain disconnected, it becomes harder for banks to see the bigger picture.

Customer touchpoint analysis in banking helps bring these interactions together to build a clearer understanding of customer behaviour and interests.

Consider this example.

A customer visits a bank's website several times to explore home loans. A few days later, they enquire about loan eligibility through a customer service channel.

Looking at these interactions separately may reveal very little. Looking at them together could help the bank recognise a potential home loan opportunity.

Of course, browsing a page does not automatically mean a customer is ready to apply. The bank still needs to consider eligibility, consent and other relevant information.

The point is simple: when banks understand customer interactions in context, they can make better-informed decisions about what to offer and when to reach out.

3. Use Customer Insights to Recommend the Right Products

Once banks have a clearer picture of customer behaviour, the next step is to identify products that may genuinely meet their needs.

This is where customer analytics can support better cross-selling and upselling.

Instead of sending the same offer to everyone, banks can use relevant information such as existing products, eligibility and customer interactions to identify suitable opportunities.

For example:

• A customer who meets the eligibility criteria for a credit card could receive information about a suitable card.
• A customer exploring premium banking services could learn about relevant account benefits.
• A customer showing interest in a loan could receive information about eligibility and the application process.

The goal is not to push more products to every customer. It is to identify which products make sense for whom.

Relevant offers can make communication more useful. Generic offers, on the other hand, may be ignored because they do not address what the customer actually needs.

The better banks understand their customers, the better they can identify relevant opportunities to grow existing relationships.

4. Use the Right Communication to Turn Interest Into Action

Finding the right customer and product is only half the job. Banks must also communicate the offer clearly and help customers understand what to do next.

An offer may go unnoticed if it arrives at the wrong time. A customer may also hesitate if the benefits are unclear or the next step is difficult to complete.

This is why customer communication in banking plays an important role in cross-selling and upselling.

Consider a customer who receives a message about a pre-qualified loan offer.

They may want to know:

• What makes them eligible?
• What are the terms and conditions?
• Which documents are required?
• How can they proceed?

A well-planned communication journey can help answer these questions and guide the customer towards the next step.

For example, a bank could use messaging to share the offer and provide relevant information. An AI-powered conversation could answer common questions and help the customer understand the process. If the query needs personal assistance, the conversation could be directed to a human representative.

The experience should remain consistent when customers move between channels. They should not have to repeat information or start again every time they need help.

Communication is not just about delivering a promotional message. It is about helping customers understand an offer, make an informed decision and move forward with less friction.

Of course, communication alone cannot guarantee a sale. The product must be suitable, the offer must be clear, and the overall customer journey must work well.

5. Connect Customer Insights, Offers and Communication

A strong banking cross-sell strategy brings three things together.

Customer insights: Understand interactions across relevant touchpoints to identify needs and opportunities.

Relevant offers: Recommend products based on customer needs, existing relationships and eligibility.

Timely communication: Reach customers through appropriate channels, answer their questions and make the next step clear.

These steps work best when they are connected.

Customer data helps banks identify an opportunity. Product recommendations help them decide what to offer. Communication helps customers understand that offer and decide whether to act on it.

Measuring banking campaigns? The CPaaS KPI Handbook covers 50+ WhatsApp, SMS and RCS metrics, with formulas and worked examples.

This is also where communication technology can support the process.

Helo.ai brings together messaging, AI-powered conversations and voice capabilities that businesses can use to engage customers across communication channels.

In banking, these capabilities can support customer communication by helping banks share relevant information, answer common questions and guide customers through appropriate journeys.

The technology is an enabler. The starting point is still understanding the customer and offering something relevant to their needs.

Want to see how this could work for your bank? Talk to the Helo.ai team.

The Real Opportunity: Understand Customers Better

Fast-growing banks have opportunities to grow beyond acquiring new customers. They can also look at how they serve existing customers, how they identify new needs and how they make relevant products easier to discover.

That requires more than a good product or a well-timed campaign.

It requires banks to connect customer touchpoints, use insights to identify relevant opportunities and communicate clearly at every stage.

The question is not just how many customers a bank can reach. It is how well the bank understands them and how effectively it acts on that understanding.

Because the next growth opportunity may not come from finding another customer. It may come from understanding what an existing customer needs next.

Frequently asked questions

What is cross-selling in banking?

Cross-selling in banking means offering an existing customer an extra product that complements what they hold, such as a credit card. Upselling offers a more suitable or higher-value version of a product the customer already has.

How do banks decide which product to offer a customer?

Banks look at existing products, eligibility and customer interactions across touchpoints. Browsing a page does not mean a customer is ready to apply, so consent and eligibility still need checking.

Can communication alone drive cross-selling?

No. Communication should explain why the customer is eligible, the terms and the documents needed, and offer a route to a human representative. It cannot guarantee a sale if the product or the journey is weak.