A great marketing campaign starts with accurate, current data, and the most reliable data you can get is the kind customers give you willingly. Purchased lists and third-party data have their place, but self-reported information is almost always more accurate, more current, and more actionable. The question is how to get customers to share it.

Here are five approaches that work.

Offer Something Worth Sharing For

People are far more willing to provide personal information when they understand what’s in it for them. Lead with the benefit. A clothing retailer might offer personalized style recommendations in exchange for a short quiz: “Tell us your style, and we’ll do the shopping for you.” Once you know what people like, the follow-up is natural: “Want more like this? Sign up for new introductions you’ll love.”

Incentives don’t have to be monetary. Relevance itself is a compelling offer.

Let Address Updates Do Double Duty

When customers update their contact information (a natural touchpoint that most businesses already have), that’s an opportunity to gather more. A simple addition to the update form can do a lot. “Tell us a little more about yourself so we can personalize your experience” feels like a service, not an interrogation, because it is.

Ask When Customers Are Already Engaged

The best time to ask for information is when someone is already on your website actively looking for something. In that moment, a well-placed prompt (“Help us get to know you so we can give you exactly what you need”) feels helpful rather than intrusive. Context matters in data collection, and in-the-moment requests consistently outperform cold outreach.

Follow Up After the Sale

Post-purchase is an underused window for data collection. When customers have just made a decision, they’re naturally inclined to reflect on the experience. A short follow-up questionnaire such as “Thanks for shopping with us. How did we do?” invites feedback, and it’s easy to add a few demographic or lifestyle questions alongside it. Keep it brief, and the completion rate stays high.

Understand That Not Everyone Thinks the Same Way About Data

Consumers have varying comfort levels when it comes to sharing personal information. Some are enthusiastic, some cautious, and some skeptical, regardless of what you offer. Acknowledging that range helps you write more sensitive, effective messaging, lowers the stakes for privacy-conscious customers, and creates more personalized offers for those who’ve already shown they’re comfortable sharing.

Getting better customer data is achievable without sophisticated tools or large budgets. Often the simplest approach works best. Just ask, and give people a good reason to answer.