SG&A Creep: When Overhead Quietly Kills Profitability

Revenue grows. Headcount grows. Software subscriptions grow. Profitability — somehow — doesn't.

Selling, general, and administrative expense — SG&A — is the cost category that most frequently grows faster than the business can sustain. Unlike COGS, which is tightly connected to revenue and tends to receive close scrutiny, SG&A accumulates through a series of individually reasonable decisions: a new hire here, a software subscription there, expanded marketing agency retainers, additional insurance coverage. Each item seems justified in isolation. The aggregate, measured against revenue, often reveals a pattern of overhead growth that is quietly compressing margins.

The most useful way to track SG&A is as a percentage of net revenue, benchmarked against industry norms and evaluated against trend. For most retail and CPG businesses, SG&A in the range of 20% to 35% of net revenue is typical, though this varies significantly by business model, growth stage, and channel mix. DTC brands investing aggressively in customer acquisition tend to run higher SG&A ratios. Wholesale-focused businesses with lean commercial teams tend to run lower. What matters most is whether the ratio is stable, improving, or drifting upward.

Chart: SG&A as % of revenue benchmarks by business model — and the EBITDA impact of a 5-point SG&A creep on a $5M revenue base.

Headcount is typically the largest driver of SG&A creep and the most difficult to reverse. Hiring decisions made during periods of strong growth often outlast the revenue tailwinds that justified them — leaving businesses with cost structures that assume a level of revenue they are no longer generating. Finance leaders should evaluate headcount not only against current productivity metrics but against the revenue level the organization needs to reach for the current structure to be economically justified.

Technology spending is an increasingly significant component of SG&A that receives inadequate scrutiny in many businesses. Software subscriptions, in particular, have a way of accumulating through departmental decisions that bypass centralized review. A structured annual audit of all software and service subscriptions — evaluated against actual usage and business impact — frequently identifies 10% to 20% of spend that can be eliminated or renegotiated without meaningful operational impact.

Bottom Line: SG&A creep is a silent margin killer. The businesses that catch it early are the ones that measure it monthly, benchmark it against revenue, and hold every cost line accountable to a return