The Medicare Annual Enrollment Period opens October 15 and closes December 7. Fifty-four days. That is the entire window insurance agencies and resellers get to reach the right seniors before the year resets. Before a single mail piece goes out or a single email sends, one question decides whether that window pays off: is your AEP audience data actually ready?

Fifty-Four Days Doesn’t Leave Room to Fix Bad Data

AEP is not a campaign you can course correct halfway through. Every changed plan, every switch from Original Medicare to Medicare Advantage, every dropped Part D plan happens inside this one window, and it only runs once a year, according to Medicare.gov.

That means the data behind your campaign has to be right before October 15, not figured out during it. An outdated list, a mistargeted segment, or a batch of records nobody has verified this year does not just underperform. It burns a chunk of the only shot you get.

Your Response Rate is Decided Before the Campaign Launches

Direct mail to prospect lists averages a 2% to 4.4% response rate. Mail to in-house lists, existing customers and prior inquiries, averages 5% to 9%, according to the ANA/DMA Response Rate Report.

That gap has nothing to do with the creative. The postcard, the offer, the subject line, none of it can outperform who it’s actually reaching. Audience data quality is the ceiling everything else gets built under.

For Insurance Agencies: What Ready Actually Looks Like

You’re not trying to reach every senior. You’re trying to reach the right ones, in your licensed territory, at the exact moment they’re deciding whether to shop their coverage. Before your campaigns go out, it’s worth checking:

1. Is your list current, or built on records that are a year or two old?
2. Are you segmenting by eligibility and location, or mailing broad and hoping?
3. Could your data hold up if a carrier or compliance team asked where it came from?

If any of those give you pause, that’s the gap worth closing before October 15, not during it.

For Resellers: Your Clients are Only as Ready as Your Data

Your agency clients feel the pressure of AEP through you. If the list you hand them is stale or mistargeted, it becomes their problem in the middle of their busiest, least flexible season. Worth checking on your end:

1. How fresh is the data you’re sourcing and reselling right now?
2. Can you back up deliverability and accuracy if a client pushes back?
3. Are you set up to turn around updated, targeted segments fast once requests start coming in?

Agencies leaning on you during AEP won’t have time to troubleshoot bad data mid-campaign. Getting ahead of it now protects the relationship when it matters most.

Getting Ahead of the Rush

AEP doesn’t wait, and neither does the competition for attention once it opens. Whether you’re building the campaign or supplying the list behind it, the work that moves the needle happens now, while there’s still time to fix what’s off before it costs you response rate.

Ready to Build a Better AEP Audience?

Alesco combines multiple proprietary and partner data sources to help you reach the right Medicare consumers through direct mail, email, and digital campaigns. Contact us today for audience recommendations tailored to your AEP strategy.

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Alesco Data helps agencies and resellers reduce quoting friction, improve turnaround times, and access high-quality data solutions built for speed-to-market.

Whether it’s a quick count, self-service access through Alesco Leads, or custom audience fulfillment across multiple channels, the goal is simple: make it easier for agencies to win.