When growth stalls, most brands go back into Ads Manager. On an illustrative $10m brand, trimming 10% of overheads lifts operating profit by about half, and getting the same from advertising would take a 16% ROAS gain.
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When growth stalls, the first instinct is to go back into Ads Manager: a new audience, a new creative, a new bid strategy, anything to lift ROAS. That work matters. But there's a second lever that gets far less attention, and for most $5m to $20m brands it moves profit faster: running the business a little leaner.
You don't need a dramatic cut to feel it. Using the same illustrative $10m brand from our ecommerce P&L guide, here's what trimming 5%, 10% or 15% of operating expenses does to profit, what it would take from ROAS to get the same result, and what happens if you put the saving back into growth.
The brand: $10m in sales, $400,000 of operating profit
Our example brand sells $10m a year with a 60% gross margin. After payment fees, fulfilment, shipping, returns and $1.5m of paid marketing, it keeps a 25% contribution margin, or $2.5m. Then $2.1m of operating expenses comes off: $1.2m of team, $300,000 of agencies, $250,000 of software, $150,000 of rent and $200,000 of accounting, legal and everything else. That leaves $400,000 of operating profit, a 4% margin, and a blended MER of 6.7.
That thin margin is the point. When operating profit is only 4% of sales, a small change in overheads is a big change in profit.
What getting leaner does to profit
| Operating expenses cut by | 5% | 10% | 15% |
|---|---|---|---|
| Annual saving | $105,000 | $210,000 | $315,000 |
| Operating profit | $505,000 | $610,000 | $715,000 |
| Operating margin | 5.1% | 6.1% | 7.2% |
| Change in operating profit | +26% | +52% | +79% |
| ROAS gain needed for the same profit | +7.5% | +16% | +27% |
| Or extra sales needed for the same profit | +$420,000 | +$840,000 | +$1.26m |
A 10% trim, $210,000 on a $2.1m cost base, lifts operating profit by about half. To get the same result from advertising, the brand would need every channel to become 16% more efficient and stay there, cutting spend from $1.5m to $1.29m without losing a dollar of sales. To get it from growth, it would need $840,000 of extra sales at its current 25% contribution margin.
Both are possible, and you should keep working on them. But a 16% efficiency gain is hard to hold through a Black Friday auction or a platform change, while an overhead saving, once made, tends to stick. Our guide to ROAS vs profitability explains why the ROAS number alone can mislead.
Where a 10% saving usually comes from
For most brands it isn't one big cut. It's a handful of decisions made at renewal time and in hiring:
| Operating expense | Before | After | Saving | How |
|---|---|---|---|---|
| Software and apps | $250,000 | $200,000 | $50,000 | Cut overlapping tools at renewal |
| Agencies | $300,000 | $240,000 | $60,000 | Bring routine reporting and creative variations in-house |
| Team | $1,200,000 | $1,100,000 | $100,000 | Automate repeat work instead of backfilling one role |
| Total | $2,100,000 | $1,890,000 | $210,000 |
None of this needs a layoff round. The team saving comes from growing without adding a role, which is why revenue per employee is worth tracking alongside ROAS. The software line is usually the quickest win, and our tech stack audit walks through it in seven steps.
Keep the saving, or reinvest it in growth
The $210,000 is yours to decide on. Say new-customer campaigns return a marginal MER of 3.0, well below the brand's blended 6.7, because extra spend is always less efficient than the first dollar. At a 40% contribution margin before ads, every reinvested dollar brings back $1.20 of margin:
| With a 10% saving | Keep it all | Reinvest half | Reinvest it all |
|---|---|---|---|
| Extra ad spend | $0 | $105,000 | $210,000 |
| Extra sales | $0 | $315,000 | $630,000 |
| Operating profit | $610,000 | $631,000 | $652,000 |
| Net sales | $10.0m | $10.3m | $10.6m |
Reinvesting pays only while the marginal MER stays above your breakeven, which for this brand is 2.5 (1 divided by its 40% margin before ads). Below that, each extra dollar of ads loses money and keeping the saving is the better call. Either way, profit grows, and the growth comes from a lever you control rather than one the ad platforms do.
Check the numbers on your own P&L
- Find your contribution margin before and after ads. Our contribution margin formula guide shows which costs come off where.
- List every operating expense as a % of net sales. Software, agencies, team, rent and everything else, compared with last year.
- Work out what a 5% and a 10% trim would do to operating profit. On a thin margin the answer is usually bigger than expected.
- Set your breakeven before reinvesting. The breakeven ROAS calculator shows the minimum return new spend has to make.
Do it every quarter. Overheads creep back as soon as nobody is watching them, and the brands that grow profitably treat them as a lever, not a fixed cost.
StoreHero shows contribution margin and operating costs side by side, so you can see how much cash you have to reinvest and what each channel returns on it. Book a demo and bring your numbers.
Key takeaways
- On a $10m brand with a 4% operating margin, a 10% overhead trim ($210,000) lifts operating profit by about half.
- Getting the same profit from advertising would take every channel becoming 16% more efficient, or $840,000 of extra sales.
- Even a 5% trim lifts operating profit by about a quarter.
- Most of the saving comes from software renewals, agency scope and not backfilling one role, not layoffs.
- Reinvest the saving only while new spend returns more than your breakeven MER; otherwise keep it.
Frequently asked questions
How do you grow an ecommerce brand without improving ROAS?
Trim operating expenses such as overlapping software, agency scope and roles you don't need to backfill, then decide whether to keep the saving as profit or reinvest it in acquisition. As long as new spend returns more than your breakeven MER, reinvesting grows both sales and profit without ROAS improving.
How much does cutting operating expenses increase profit?
It depends on how thin your margin is. In our illustrative $10m brand with a 4% operating margin, cutting operating expenses by 5% lifts operating profit by about 26%, and cutting them by 10% lifts it by about 52%.
Is it better to cut costs or increase ROAS?
Do both. Overhead savings depend on decisions you control and tend to stick once made, while ROAS gains depend on the ad platforms and can fade. On a thin margin, a modest overhead trim often does more for profit than a realistic ROAS improvement.
