D2C brands have endless metrics to look at. ROAS, CAC, conversion rate, AOV, retention, revenue. All useful, but none tell the full story on their own.

For us, LTV is one of the most important metrics a brand can track.

It tells you how much value you generate from a customer compared to what it costs you to acquire them.

A brand with a £30 CAC and £120 LTV has a 4:1 LTV ratio. A brand with a £50 CAC and £200 LTV also has a 4:1 ratio. The acquisition costs are very different, but the underlying economics are the same.

That's why looking at CAC alone can be misleading.

A rising CAC isn't necessarily a problem if customer value is rising alongside it. Equally, a low CAC doesn't mean much if customers don't come back and generate meaningful LTV.

This is where LTV becomes particularly useful for paid social.

Your LTV ratio helps determine how aggressively you can acquire customers. If you can increase customer value while maintaining acquisition costs, you create more room to spend. That can mean testing broader audiences, investing more into creative and scaling campaigns that previously looked too expensive.

It also means CRO and retention aren't separate from paid media. Improving conversion rate can reduce CAC. Increasing AOV and purchase frequency can increase LTV. Better retention can increase the amount you're able to spend to acquire each customer.

Everything feeds into the same equation.

The mistake is treating LTV as a number you look at once a month.

You should be using it to make decisions.

Are we acquiring customers profitably? Can we afford to scale? Is our retention strong enough? Can we spend more on Meta? Where is the biggest opportunity to improve the ratio?

At Hatten, we think LTV should sit at the centre of a D2C growth strategy.

Because ultimately, growth isn't just about acquiring more customers.

It's about acquiring customers for less than they're worth.