Turnover Cost Per Unit: The Silent Profit Killer

When I first started buying small multifamily, I obsessed over the big numbers.

Purchase price.

Interest rate.

Rent comps.

Cap rate.

All important.

But there is one line item that can quietly erode your returns faster than almost anything else if you are not paying attention.

Turnover cost per unit.

It does not look dramatic. It is rarely catastrophic. It just shows up over and over again, nibbling at your NOI like a slow leak in a tire.

Every time a resident moves out, you pay. Paint. Cleaning. Flooring. Repairs. Lost rent during vacancy. Leasing commissions. Your team’s time. Your mental bandwidth.

Individually, it might be $1,500. Maybe $3,000. Sometimes more if you are not managing it tightly.

But multiply that by 10 units. Or 30. Or 50.

Now it is real money.

Here is the part most investors miss. High turnover is not just an expense problem. It is often a management and strategy problem.

Are rents being pushed too aggressively?

Are you screening for long term fit?

Are small maintenance issues being ignored until residents get frustrated?

Are you building community or just collecting checks?

Retention is profitability.

When I underwrite deals now, I look closely at historical turnover. I ask how often units are flipping. I calculate an annualized turnover cost per unit and bake that into my projections. If I can reduce turnover by even one unit per year in a small property, that can mean thousands of dollars straight to the bottom line.

In small multis especially, stability compounds.

We talk about growing income. We talk about raising rents. But sometimes the most powerful move is simply keeping a good resident longer.

What would happen to your returns if your next big win was not a rent increase, but one less turnover this year?