Bottom line: it depends on whether you already found the item

The two services solve different problems, and mixing them up is the single biggest reason people overpay:

• Proxy buying service: someone in Japan buys the item for you from a Japanese-only store, auction, or reservation system, then ships it (or hands it to a forwarder). Use this when you can’t purchase it yourself — Japan-only payment methods, Japan-only shipping address, members-only stores, or a lottery/reservation system that requires a Japanese identity.
• Package forwarding: you buy the item yourself (many Japanese retailers do ship internationally, or you use a Japanese shipping address the forwarder provides), and the forwarder just combines and re-ships your packages. Use this when purchase itself isn’t the problem — shipping cost is.

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Decide with one question

Can you complete the checkout yourself, right now, with your card and a Japan-based address?

• No (site rejects foreign cards, requires a Japanese phone number for verification, or it’s a members-only reservation) → proxy service. You’ll pay a per-item service fee on top of the price plus shipping.
• Yes → forwarding only. Buy directly, ship everything to your forwarder’s Japanese address, have them consolidate and forward. This is cheaper per item since you skip the proxy’s service fee.

Where the money actually goes (rough shape, verify exact rates)

For a single mid-size item from one store:

• Direct international shipping (if the store offers it): often the most expensive per-item option, but zero extra service fee
• Forwarding: item price + domestic Japan shipping to the forwarder + one international shipment (fees and any consolidation discount: verify current rates at publish time)
• Proxy + forwarding: the above, plus a per-item proxy service fee (typically a percentage or flat fee — verify)

The forwarding advantage compounds when you’re buying from multiple stores: one international shipment for five items beats five separate international shipments, often by a wide margin. If your shopping list has 3+ items from different shops, consolidate — the maths almost always favors forwarding over shipping each separately.

Common mistakes

• Using a proxy when you didn’t need one. If the store ships internationally and takes your card, a proxy just adds a fee for nothing. Check the store’s own shipping page first.
• Forgetting storage limits. Forwarders hold packages free for a limited window (commonly a few weeks — verify per service), then charge storage. If you’re waiting to consolidate a slow preorder, confirm the free storage period before it piles up.
• Not declaring value correctly. Under-declaring to dodge customs duty is a real risk for the receiver, not just a savings trick — we don’t recommend it, and duty calculations vary by destination country (verify your own country’s threshold).

If you’re dealing with a lottery/reservation preorder

That’s specifically a proxy-service situation (Japanese identity verification is usually required to enter). The reservation mechanics themselves — how the lotteries work, what “specialty store bonus” means — are covered in [preorder-lottery-guide].

Summary

Can you check out yourself? Yes → forwarder only. No → proxy, then forwarder. Buying from 3+ shops? Consolidate before international shipping either way. Entering a lottery-style preorder specifically? See [preorder-lottery-guide] for the timeline and payment-deadline trap. Full buyer’s roadmap: [buying-from-japan-101].