New to this? The 5 words that matter
Amazon picks, packs, ships and handles returns for us — and charges a fee per item for it. A few smart choices while a product is still being designed (a flatter package, an ounce less, the right price) can save $1–2 on every single unit sold.
- Size tier
- How big your package is. Amazon sorts everything into size buckets — smaller buckets cost less. “Small Standard” is the cheap, happy bucket we aim for.
- Weight bands
- Fees go up in 2-ounce steps. Being a hair over a step costs the same as being well over it — so landing just under an edge is free money.
- Dimensional weight
- A “size-based weight.” Amazon charges the bigger of real weight or box size — like an airline charging for a big, light suitcase.
- Referral fee
- Amazon’s commission — a percentage of the price, like a sales fee. For our products it’s usually 8% or 15%.
- Low-Price FBA
- Price the item at $10 or under and Amazon automatically takes about 77¢ off the shipping fee. Works in every category.
💡
The single most important idea: Amazon charges you for the bigger of two numbers — how much the item actually weighs, or how much space its package takes up (“dimensional weight” = L × W × H ÷ 139). Think of checked luggage: a big, light bag still costs a lot. So every empty inch of box is money spent for nothing. (For the smallest “Small Standard” packages, Amazon skips this and just uses real weight.)
A real example: a 3-pack of scrunchies
Same product, two packaging decisions. Watch what a flatter mailer and a $9.99 price do to the fees.
✕ Boxed · priced $11.99
Size tierLarge Standard
Fulfillment fee$4.55
Referral (15%)$1.80
Amazon takes$6.35
Box is over 0.75″ thick → bumped to a pricier tier. Price over $10 → full 15% commission, no shipping discount.
✓ Flat mailer · priced $9.99
Size tierSmall Standard
Fulfillment fee$2.86
Referral (8%)$0.80
Amazon takes$3.66
Flat mailer stays in the cheap tier. Under $10 → shipping discount and the 8% Beauty rate.
→ Same scrunchies, $2.69 more kept per unit. Across 50,000 units that’s ~$135,000 a year — decided entirely at the design stage.
Reference tables
Size tiers & shipping fee (estimate) — green is the target zone for most Kitsch products.
| Tier / weight | Max size (packaged) | Fee |
|---|
| Small Std · ≤ 2 oz | 15 × 12 × 0.75 in | $3.06 |
| Small Std · 2–4 oz | ″ | $3.15 |
| Small Std · 4–8 oz | ″ | $3.24–3.33 |
| Small Std · 8–16 oz | ″ | $3.43–3.65 |
| Large Std · ≤ 6 oz | 18 × 14 × 8 in | $3.68 |
| Large Std · 6–16 oz | ″ | $3.90–4.55 |
| Large Std · 1–1.5 lb | ″ | $4.99–5.37 |
| Large Bulky / Oversize | > 18 in any side | $9.61+ |
| Low-Price FBA (≤ $10) | any Standard size | − $0.77 |
Low-Price FBA works in every category when the price is ≤ $10 — not just Beauty. It doesn’t apply to Dangerous Goods.
Referral fee (commission) by category — % of price · $0.30 minimum · on top of shipping.
| Category | Rate |
|---|
| Beauty & Personal Care | 8% ≤ $10 · 15% > $10 |
| Baby Products | 8% ≤ $10 · 15% > $10 |
| Grocery & Gourmet | 8% ≤ $15 · 15% > $15 |
| Clothing & Accessories | 5 / 10 / 17% tiered |
| Home & Kitchen · Tools · Sports | 15% |
| Pet Products | 15% |
| Consumer Electronics · Computers | 8% |
| Electronics Accessories | 15% ≤ $100 · 8% above |
| Jewelry | 20% ≤ $250 · 5% above |
| Everything Else | 15% |
Textiles (towels, wraps, robes) may classify as Clothing — the tiered 5/10/17% rate is gentler on low-priced pieces.
Dangerous Goods (Hazmat) surcharge
Applies to aerosols, flammable/high-alcohol liquids, pressurized cans, and lithium batteries (heated tools, LED devices). Higher fee schedule + higher storage. No Low-Price FBA discount.
| Tier / weight | Standard fee | Dangerous Goods fee | Extra |
|---|
| Small Std · ≤ 2 oz | $3.06 | $3.85 | +$0.80 |
| Small Std · 4–8 oz | $3.24–3.33 | $4.10–4.25 | +$0.85 |
| Small Std · 10–16 oz | $3.53–3.65 | $4.40–4.55 | +$0.90 |
| Large Std · 6–12 oz | $4.30 | $5.30 | +$1.00 |
| Large Std · 1–1.5 lb | $5.10 | $6.30+ | +$1.20 |
The design rules, in plain terms
Keep it small & light
- Aim for “Small Standard.” Keep the longest side under 15″ and thickness under 0.75″. A flat mailer beats a box.
- Squeeze out empty space. Amazon can charge by box size, so a snug package saves money.
- Land just under a weight step. Aim for 3.9 oz, not 4.2 oz.
- Multipacks share one shipping fee. A 6-pack pays ~$3.35 once, not six times.
Price & ingredients
- $10 or under is a double win in Beauty: the 77¢ shipping discount and 8% commission instead of 15%.
- Flag aerosols, batteries, or flammable parts early. “Dangerous Goods” adds ~$0.80–1.20 per unit.
- Go water-based / non-aerosol when you can to avoid that surcharge entirely.
- When unsure, ask before specs are locked. Fixing a design on paper is free; fixing it after launch isn’t.
Figures are planning estimates on the 2026 US rate card — confirm exact per-item fees in the calculator above.
Prepared for the Kitsch product development team · EKE Consulting · US marketplace, 2026 planning figures.