eBay export profit math — putting fees and shipping in from the start

Most people who lose money on export resale didn't get the arithmetic wrong — they left items out of the arithmetic from the start. "Bought for 30k, sells for 60k, so 30k profit" is mental math that routinely shrinks to a few thousand yen. Here's how to judge profit on take-home, not face value, with an illustrative worked example. (For the overview see the export basics guide; for the real hit rate, what we found matching items by hand.)

1. Why "from the start"

Fees and shipping are deducted after the sale, so they're hard to see in the pre-purchase mental math. Yet they're exactly what decides whether you're in the black. Run the take-home formula all the way through before you decide to buy. Doing that, or not, changes which items you pick.

2. Start from where it actually lands

The starting point is what the item actually sells for overseas (eBay Sold comps) — the sold price, not your hoped-for price. From there, subtract the items below to get what's left in hand. The trick is not stopping at the face-value sale price.

3. Subtract the fees (checklist)

• Final value fee: a percentage on sale price plus shipping. Rates vary by category and store contract — always confirm against the latest official table. Don't forget the fee also applies to shipping.
• Payment & FX: fees and exchange spread receiving proceeds and converting to yen. A stronger/weaker yen moves your take-home.
• Store subscription: at volume, a store plan can be cheaper per listing. Treat it as a fixed cost and amortize it.

We don't print specific rates here (they change often and differ by category). Always check eBay's official fee page for the current numbers.

4. Stop estimating shipping "roughly"

Shipping eats export take-home the most. Hand-wave it and the whole profit call collapses. To get a firm number, look at:

• Real weight and dimensions: the packed weight and size. If volumetric weight (converted from size) exceeds actual weight, some carriers bill on the volumetric figure.
• Carrier trade-off: Japan Post (ePacket, EMS) is cheap but slow with weaker tracking; couriers (FedEx, DHL) are fast but pricey. Choose by item value and fragility.
• Who pays duties/VAT: in principle the buyer, but declaration rules and low-value thresholds differ by country. The higher the value, the more it hits the buyer's total — and the sell-through.
• Packing materials: boxes and cushioning are a per-item cost. Small, but it adds up across volume.

5. A worked example

All numbers are illustrative placeholders (not a real item). Assume ¥150 to the dollar.

Naive mental math says "60k − 35k = 25k profit." The actual take-home is ~¥9,000, with over 30% of the sale price gone to costs (shipping included). The same item flips from "juicy" to "not worth it" purely on how you run the numbers. That's what "only means anything once fees are in the math" comes down to.

6. Common mistakes

• Stopping at face value: calling sale price − cost "profit." Half the subtraction is still outstanding.
• Hand-waving shipping: not measuring, just "maybe ¥2k." Volumetric weight spikes it into the red — a classic.
• Wrong rate: applying another category's fee rate, or forgetting the fee also lands on shipping.
• FX optimism: treating payment/conversion fees and spread as zero. A strong yen thins the take-home.
• Using the hoped-for price: computing on what you want, not what sold. The landing drifts down.

7. This calculation is what eats the time

Per item: confirm what actually sold, pin shipping by real dimensions, run it through to take-home — doing that at volume is quietly heavy work. And items that stay positive on take-home are around one in ten of what you dig into. Which is exactly why "a single item that held up all the way to take-home" has value in itself. niixo's sourcing research (preparing) is building a way to hand you that checked result, backed by a full refund if it can't be bought.