Revenue  ·  6 min read

The Revenue Sitting in Your Dormant Accounts

Your inactive customer list is the cheapest growth asset you own. Here is the worksheet, the outreach note, and the system that runs it without a person remembering to.

By Mike Kohl, founder of Kohl Digital  ·  October 6, 2026

There is very likely real revenue sitting in your CRM right now. Not in the pipeline. In the accounts that stopped buying.

Engineers look for idle capacity: the server running at 4%, the database nobody queries, the asset that was expensive to build and now produces nothing. In a mid-market company the idle asset is nearly always the same one. The dormant account list.

Every company has one. Customers who bought once and never reordered. Accounts that finished a contract and drifted. Buyers who were engaged through two renewals, went quiet in the third, and were quietly filed as churned. Nobody fired you. Nobody got angry. A champion left, a budget moved, a quarter got busy, and your process stopped noticing.

They are dormant, not gone. Those are different words, and the difference is worth real money.

The worksheet, so you can stop taking my word for it

Three numbers decide the size of the opportunity.

  1. Dormant accounts. Customers who bought in the last 36 months and have not bought in the last 6 to 12 months. Your CRM can produce this list in an afternoon.
  2. Reactivation rate. The share who re-engage when approached personally by someone who knows them. Start with a conservative planning range of 3% to 6%. Treat it as an assumption to test, because your real rate will come from the first batch.
  3. Average reactivated value. The first-year value of a returning account, including the expansion that usually follows.

Here is an illustrative example. A company with 400 dormant accounts, a 6% reactivation rate and a $38,000 average first-year value:

400 times 6% is 24 accounts, and 24 times $38,000 is $912,000.

InputWhere to get itIllustrative exampleYour number
Dormant accountsBought in last 36 months, not in last 6 to 12400
Reactivation rateStart at 3% to 6%, then measure6%
Average reactivated valueFirst-year revenue from a returning account$38,000
Annual opportunityMultiply all three$912,000

Figure 1: The dormant account worksheet. The example is illustrative. The fourth column is the only one that matters.

Your numbers will differ. Run them before you believe mine or anyone else's. The point of the exercise is that most companies have never done arithmetic on an asset they already own.

Why the money just sits there

Reactivation is nobody's job. Sales is chasing new pipeline, because new logos are what the compensation plan rewards. Customer success is covering the accounts that are still active. The dormant list grows by a few names a week, silently, and no alarm goes off, because a customer drifting away makes no sound.

Meanwhile the marketing budget buys strangers. Cold traffic, the most expensive customers you can acquire, while the warmest audience you will ever have sits in a spreadsheet. If a consultant proposed that allocation out loud, you would end the meeting.

The note that does the work

Effective outreach to a dormant account is not a promotion. A returning buyer does not want a discount. They want to see that someone noticed, and that you have something relevant to their situation.

The shape is three sentences. We noticed it has been a while. Here is one thing that matters for a company with your history. If you want to pick things back up, here is the easiest way.

Hi [First name],

I was reviewing our accounts and realized it has been about [X months] since we last worked together. No agenda, I wanted to check in.

One thing that may matter for [Company]: [specific, relevant note tied to their history, such as a product change, a renewal-cycle pattern in their industry, or an expansion that fits what they bought before].

If it makes sense to pick things back up, here is a calendar link: [link]. If not, no problem, and I hope the year is going well.

[Name]

Written in the sender's voice, with a real reference to the account's history. The response comes from the fact that a person who knew them remembered they exist.

Where the system comes in

Doing this once by hand is a project. Doing it every month, indefinitely, is a system, and this is exactly the kind of system that should never depend on a person remembering.

The parts are straightforward:

  • A query that flags any account crossing the dormancy line.
  • A draft note personalized from the account's purchase history, queued for the account owner's approval.
  • A single polite follow-up two weeks later.
  • A tag that records who came back, so the yield is measured and the rate assumption gets replaced by a real number.

It runs in the background. The account owner spends minutes reviewing a batch. The list stops accumulating, and the revenue stops leaking quietly.

This is the same logic behind the renewal systems I built on the Level 3 and Lumen platform, which spanned more than 1,000 product lines. The account base is the asset. A system that works it consistently outperforms any individual's memory.

What to do Monday morning

Ask your CRM administrator for one number: accounts that bought in the last three years and have not bought in the last six to twelve months. Get the real count.

Multiply it by 3%, then by your average first-year account value. That figure is the low-end cost of doing nothing this year, and it renews annually because the list keeps growing.

Then have account owners send the first 25 notes by hand. You do not need software to start. You need the list, the three-sentence note and an hour.

The Revenue Engine section of the Leverage Diagnostic prices this for your company in six minutes. The drawer is already full. Open it.

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