Somewhere around 5% net profit a year, hit consistently, not just in the good years. That number comes from a CPA-facilitated peer group of powersports, marine, and RV dealers, where they call it the "5% survival net." The logic: over a 20-year stretch, something will come along that tests your business, and if you haven't been banking a margin cushion, that's the event that puts you under. I heard this straight from an owner who lived through it, and it's one of the more useful rules of thumb I've run across.
Where the "5% survival net" comes from
I had a powersports and marine dealer on the podcast, here in Ohio, and he told me about a group he'd been part of for years called a "20 group." It's a car-business model that carried over into powersports, marine, and RV: dealers similar in size, from all over the country, who don't compete with each other, get together a couple times a year and go through each other's numbers. A CPA firm runs the whole thing, and every dealer sends their financials in monthly.
He joined mainly to get normal benchmarks: how much to spend on a sales manager, what advertising should run relative to sales. But the number that stuck with him came straight from the CPA firm facilitating it: if you can't hit 5% profit at the end of every year (what they called the "5% survival net") somewhere in a 20-year period, something will come along and put you out of business. The dealers running at 2 or 3% won't survive whatever that "something" turns out to be: a major employer pulling out of town with thousands of jobs, a storm that takes the roof off a building worth a couple hundred thousand dollars, or, like a lot of us lived through, 2008.
What it looks like when it actually happens
His own numbers are the proof. He told me that on August 18, 2008, his business lost more than half its revenue almost overnight. Staff went from around fifty employees down to twenty. It never fully came back to where it was. The first thing that got cut was personnel, because that's always the biggest expense sitting on the P&L.
That's the whole point of the 5% rule. It doesn't stop the downturn from happening. It decides whether you're one of the businesses still standing on the other side. A business that's been banking real margin for years walks into 2008, or whatever the next one turns out to be, from a position of strength. A business that's been running at 1 or 2% walks in with nothing to give.
Why I like this as a CPA
What I like about the peer group isn't just the 5% figure, it's that a CPA firm was facilitating it and gut-checking the numbers every month. When a dozen owners are self-reporting, somebody's always tempted to make their numbers look a little better than they are. Say an owner controls the real estate under a separate entity and quietly drops the rent he charges his own business to prop up his margin. A facilitator who knows what to look for catches that. He brought this up directly: if you dropped your own rent to inflate your survival number, the CPA running the group would catch it, every time. That's what keeps the comparison honest instead of just being a room full of owners comparing whatever numbers they feel like sharing.
Find your own number
5% isn't a universal law. It was the benchmark for marine, RV, and powersports dealers specifically. A services firm, a contractor, a manufacturer: each has a different real number. What matters is that you go find yours instead of guessing or borrowing someone else's.
A few ways to get there:
- Ask around in your own industry. Trade associations, peer groups, even a handful of non-competing owners comparing notes over lunch beats no benchmark at all.
- Track your trailing 12 months, not just this year. One strong year can hide a business that's actually thin most of the time.
- Build the cash reserve before you need it. Going into a downturn well-capitalized changes everything about how it plays out. Dropping from a strong cash position to half of that is a very different experience than dropping from thin to zero, even if the dollar amount lost is identical.
- Treat the number as an operating goal, not a year-end surprise. The businesses that make it through the next downturn built their cushion during the good years, not during the bad one.
Where DAT Finance fits in
This is the kind of work that has nothing to do with filing a return. Finding your industry's real survival number, tracking margin monthly instead of once a year, building a cash reserve before you need it: that's fractional CFO work, not tax prep. DAT Finance, based in Sidney, Ohio, works with owners in the $1M to $15M range who want their real number, not a generic one. Take a look at who we typically work with on our who-we-serve page.
FAQ
Is 5% net profit the right target for every business? No. It's the benchmark one CPA-run peer group found for marine, RV, and powersports dealers. Retail, trades, services, and manufacturing all carry different healthy margins. Find your own industry's number rather than borrowing someone else's.
What does "something will come along" actually mean? It's shorthand for the fact that no business runs 20 years without a real shock: a recession, a major employer or customer leaving, a natural disaster, a supply disruption. You won't know when. The margin is what decides whether you're ready when it happens.
What actually happens if you don't have the cushion? You cut the biggest expense first, which is almost always people. That's what happened across the industry in 2008 to dealers running thin. The ones with real margin and cash reserves had more room to make that call on their own terms instead of being forced into it.
How much cash reserve should a small business carry? There's no single number, but it should be tied to your fixed monthly overhead, not a round figure you picked once. Enough to cover several months of fixed costs if revenue dropped sharply is a reasonable starting point.
How do I find my industry's real benchmark? Ask a CPA who works across your industry, look for a peer group or 20-group model in your trade, or work with a fractional CFO who's already seen what normal looks like across businesses your size.
Want to figure out what your business's real survival number is? Reach out to DAT Finance and we'll walk through your numbers.