Ask most owners what a product costs them and you will get the supplier invoice number. That answer stopped being true a while ago. Between duties, freight, brokerage, and processing fees, what actually leaves your bank account per unit can run 25% to 50% above the supplier price — and for many businesses it changed twice in the last eighteen months without anyone updating a price list.
The businesses getting hurt are rarely the ones paying the most duty. They are the ones whose accounting still treats tariffs as a miscellaneous operating expense, buried below the gross margin line where nobody prices against it. Here is the fix: capture landed cost per SKU, put it in the right place on your P&L, reprice with arithmetic instead of instinct, and plan for duties coming due long before the customer pays.
What Actually Belongs in Landed Cost
- Supplier price — invoice value of the goods, net of discounts
- Duties and tariffs — assessed on customs value under your HTS classification
- Freight and insurance — ocean or air, plus inland transport to your door
- Brokerage and entry fees — broker charges, bonds, merchandise and harbor maintenance fees
- Handling and shrinkage — receiving labor, storage, expected damage or loss
Why Your Gross Margin Report Is Probably Wrong
Here is the most common bookkeeping error we see in importing businesses: duties, freight, and broker invoices get coded to operating expenses because that is how they arrive — separate bills from separate vendors, weeks apart from the goods. The supplier invoice lands in cost of goods sold; everything else lands below it. The result is a healthy-looking gross margin, a net margin that is not, and no bridge between them — and because the cost never attaches to a product, the item destroying your profitability looks identical to the one carrying the business.
These costs belong in inventory and flow into cost of goods sold when the item sells. That is not only cleaner reporting: the uniform capitalization rules under Section 263A generally require certain inventory acquisition costs to be capitalized rather than deducted as incurred. Coding it right in your bookkeeping answers the management question and the compliance one at once.
If a cost varies with how much you buy, it is a cost of the product — not an overhead item. Where you code it decides whether you can see it when you set a price.
Step One: Build a Landed Cost Per Unit
The mechanics are simple; the discipline is the hard part. For each shipment, total the non-product costs and allocate them across the units — by value when duty rates differ, by weight when freight dominates.
| Cost Component | Per Unit | % of Supplier Price |
|---|---|---|
| Supplier invoice price | $20.00 | — |
| Ocean freight and insurance | $1.90 | 9.5% |
| Duty / tariff | $5.00 | 25.0% |
| Brokerage, bond, entry fees | $0.45 | 2.3% |
| Inland freight and receiving | $1.15 | 5.8% |
| True landed cost | $28.50 | 42.5% |
A business still pricing off the $20 invoice at what it believes is a 50% margin sells at $40 and actually earns 28.8% — a gap invisible on a P&L that scatters the other $8.50 across four expense accounts.
Step Two: Reprice With Math, Not Instinct
When landed cost rises, the reflex is to add the increase to the price. That reflex loses money: to hold a gross margin percentage, price must rise by more than the cost did, because the margin applies to the new price.
The formula is Price = Landed Cost ÷ (1 − Target Margin). At a $28.50 landed cost and a 45% target, the price is $28.50 ÷ 0.55 = $51.82. Adding the $8.50 to a $40 sticker gets you $48.50 — a 41.2% margin, not 45%. On 10,000 units that is roughly $33,000 a year.
The Pass-Through Decision
You will not always pass the full increase through. Segment the catalog before deciding:
- Low-elasticity items — strong position, customers not comparison shopping. Pass through fully.
- Competitive commodities — pass through partially, and expect to defend the change.
- Loss leaders — hold price deliberately, but only if you can name the amount you are absorbing.
- Structurally unprofitable items — where a full pass-through prices you out. Discontinue rather than subsidize quietly.
A margin analysis by product line turns that into a decision instead of a debate — our guide to improving profit margins covers the mechanics, and clean financial reporting makes it repeatable.
Step Three: Plan the Cash, Not Just the Cost
This is the part that catches well-run businesses. Duties are generally payable when goods enter the country — typically within about ten working days of release, or on a periodic monthly statement. Your customer pays 30 to 60 days after you sell the item, which may itself be weeks after it lands.
A 25% duty on a $200,000 shipment is $50,000 leaving months before a dollar comes back. Across a normal reorder cadence, a profitable company can run short of cash while its income statement looks fine. Model it in a 13-week cash flow forecast with the duty plotted on its actual entry date, and tighten the other side — disciplined accounts receivable management pulls collections forward to help fund the outflow.
Service Businesses and Medical Practices Are Not Exempt
If you do not import, you still pay. Tariffs travel through supply chains as vendor price increases, and equipment-heavy operations feel them hardest — practices have absorbed higher costs on imaging equipment, exam tables, gloves, and instruments, usually as a quiet creep rather than a visible line item.
Track supply cost as a percentage of collections against your prior-year baseline. When that ratio moves, you have something to renegotiate — and where payers set reimbursement, cost control is the only lever you own. That is how our medical practice finance team monitors profitability.
Step Four: Reduce the Duty You Legitimately Owe
Before absorbing the cost, confirm you owe it. Several mechanisms are underused by smaller importers:
- Review your HTS classification. Codes are assigned once and rarely revisited, and misclassification runs both ways. Having a customs professional review your top SKUs is cheap against a year of error.
- Duty drawback. If you export goods, or products made from imported components, you may recover much of the duty paid, with a multi-year lookback window.
- Foreign trade zones. Duty is deferred until goods leave the zone, and avoided entirely on re-exports.
- Country-of-origin planning. Origin follows substantial transformation, not the shipping address.
- First sale valuation. In qualifying multi-tier transactions, duty may be assessed on the earlier sale price rather than the middleman price.
Each carries real documentation requirements — recordkeeping is the price of admission, which is why they pair with disciplined books. Coordinate with your tax strategy team so the inventory treatment and the duty position tell the same story.
The Bottom Line
Tariffs are no longer a news event to wait out; they are an input cost to manage like any other. The businesses handling it well do four unglamorous things: capture acquisition costs into landed cost per SKU, code them into inventory instead of operating expenses, reprice with the margin formula, and schedule the duty outflow when it is actually due.
None of that requires new software or a supply chain overhaul — only knowing your real cost per unit. Want to know which products are actually profitable after landed cost? Schedule a free consultation and our CFO advisory team will build the analysis with you.
