A price increase is the fastest lever in a small business. At 35% gross margin, a 5% price increase produces roughly the same profit as a 14% increase in volume — with no additional cost, capacity, or risk.
It is also the lever owners avoid most, because the downside feels concrete and immediate while the upside is abstract.
The math worth internalizing
Before deciding how much you can raise, calculate how much volume you could afford to lose and still come out ahead.
At 35% gross margin, a 5% price increase means you could lose about 12% of your unit volume and be no worse off. At 50% margin, you could lose about 9%. At 25%, about 17%.
That number is almost always larger than owners expect, and knowing it changes the conversation. The question stops being "will anyone leave" and becomes "will more than 12% leave" — which for most businesses, on a well-communicated single-digit increase, they will not.
Timing
Tie it to something. A price increase attached to a reason — a new year, a cost change, a product improvement — lands better than one arriving on its own. The reason does not have to be dramatic. It has to exist. If your landed cost has actually moved, that's the cleanest reason there is.
Give notice, and make the notice useful. Sixty days is standard in most B2B contexts. It also creates a natural pull-forward: a customer who orders ahead of the increase gives you a revenue bump in the current period and confirms the increase was priced right.
Do not do it during a service failure. Obvious, and frequently ignored. Fix the problem first, then raise prices next quarter.
Amount
Smaller and more frequent beats larger and rarer. A business that has held prices for four years and then needs 18% will lose customers. Annual 3-5% adjustments compound to the same place with a fraction of the friction, and they set an expectation that pricing moves.
Do not raise everything by the same percentage. Uniform increases are administratively easy and strategically lazy. Some items have room and some do not. Products where you are clearly under market, or where switching costs are high, can carry more. Price-visible items that customers compare directly should carry less.
Check where you actually sit. Many businesses discover during this exercise that they are 15% below the market on half their catalog and have been for years.
Communication
Be direct and brief. A long apologetic explanation signals that you think the increase is unjustified. A short, matter-of-fact notice signals that it is routine. The second is both truer and better received.
Lead with the change, not the justification. "Prices are increasing 4% effective October 1" first, one sentence of reason second. Burying the number under three paragraphs of context reads as evasive.
Do not offer to negotiate in the announcement. If a specific customer asks, handle it individually. Inviting negotiation up front guarantees you will do it with everyone.
Tell your team first. Whoever answers the phone needs to know the number, the reason, and what they are authorized to say. A sales rep improvising an apology undermines the whole thing.
What to expect
Most customers will not respond at all. A small number will ask about it. A smaller number will push back, and most of those will stay. The customers most likely to leave over a single-digit increase are usually the ones who were least profitable to begin with — which is worth knowing before you decide whether to hold firm.
The version that matters
The real cost of not raising prices is invisible. It shows up as margin erosion you attribute to costs, as an inability to invest, as a business that works harder every year for the same money.
Raising prices is uncomfortable once a year. Not raising them is expensive every day.
When you want the math run against your real numbers
The volume-loss math above only tells you something useful once it's run against your actual margin, not a round number.
Helm's CFO advisor can run this math against your actual margins from QuickBooks and tell you how much volume you could afford to lose on a specific increase. The CMO advisor can help you position the announcement — what to lead with, and how to frame it for the customers most likely to ask. Ask either one before you send the notice, not after.