Part of the free 14-week financial series for small store owners. See all lessons →
Some costs show up on a bill. The ones that hurt most rarely do.
Costs that hide in plain sight
Rent and payroll are impossible to miss. It's the smaller, recurring costs that quietly erode margin without ever landing in front of you as a single number. Card processing fees are the clearest example: a percentage taken off nearly every sale, deducted automatically, and almost never itemized anywhere you'd naturally look.
Where to look
Card processing fees. Add up a full month of them. Most owners are surprised by the total.
Small software subscriptions. Tools signed up for once and forgotten, still billing monthly.
Bank fees. Monthly maintenance charges, wire fees, anything routine enough to stop noticing.
Waste and shrinkage. Product that never made it to a sale.
Late fees and penalties. Small individually, consistent if a payment date keeps slipping.
The CPA read
Card fees alone typically run 2 to 3 percent of card sales. On a store doing meaningful volume, that adds up to real money every single month, and almost no one has actually added it up.
See exactly what fees are costing you
Clarity by Margini calculates your total card fees automatically and shows what you'd save at a lower rate.
For educational purposes only. This lesson provides general guidance, not financial, tax, or investment advice. Always consult a qualified professional for your specific situation.