1. What Amazon Changed in 2026

Amazon updated its commingling policy in April 2026, and the changes hit online arbitrage sellers hard in the most commonly sourced categories. The mandatory stickering list got significantly longer, a new per-unit return tracking system tied to commingled ASINs went live, and Amazon raised its own stickering service fee from $0.55 to $0.65 per unit.

If you've been defaulting to commingled inventory for everything, that default is now costing you account health and potentially your listing status. Several of the biggest OA categories moved to mandatory stickering with no exceptions.

This post covers exactly what changed, which categories moved to mandatory stickering, what it costs per unit, and how to adjust your workflow without destroying your margins.

2. What Is Commingled Inventory, Fast Version

Commingled inventory means your units get mixed into Amazon's general inventory pool with other sellers' identical units of the same ASIN. When a customer orders, Amazon ships whichever unit is closest. It might be yours. It might not be.

The upside: no labels to apply, faster check-in times at Amazon's warehouses, less prep work on your end.

The risk: if another seller's commingled unit gets flagged as counterfeit, defective, or wrong, that complaint can show up on your account health dashboard. Amazon tracks returns at the ASIN pool level, not always at the individual seller level. You can get dinged for something you didn't ship.

3. What Is Stickered Inventory, Fast Version

Stickered inventory means every unit you send to Amazon has your FNSKU label on it. Your inventory stays isolated in the warehouse. When a customer buys from your listing, they get your specific unit, not someone else's.

You can apply labels yourself before shipping, use a prep center (typically $0.25 to $0.45 per unit for labeling on top of standard prep), or pay Amazon's stickering service at $0.65 per unit. For a full rundown on label formats and placement rules, see this breakdown of FNSKU label requirements.

Stickered is more work upfront. But your return data stays tied to your inventory specifically. Nobody else's bad unit touches your account health report.

4. Old Policy vs New Policy: What Actually Changed

Before 2026, Amazon required mandatory stickering for a fairly narrow list:

  • Apparel and textiles
  • Jewelry
  • Shoes and footwear
  • Media products in fragile packaging
  • ASINs flagged by brand owners as sticker-required

Most grocery, health and beauty, and electronics accessories were eligible for commingling if you opted in. That's where most OA sellers lived.

Starting April 2026, Amazon expanded mandatory stickering to cover all of the following:

  • All grocery and gourmet food, all subcategories, all price points
  • Health and beauty products priced under $18
  • Personal care products, all subcategories
  • Electronics accessories priced under $25 (cables, cases, chargers, adapters)
  • All topical products: creams, serums, lotions, skincare
  • Dietary supplements, all subcategories (added January 2026, ahead of the April rollout)

Amazon will reject shipments that don't comply or auto-flag the units at the warehouse. This isn't a soft advisory. It's a hard enforcement.

5. Which Categories Are Now Sticker-Required in Full

Here's the updated mandatory sticker list as of July 2026. Amazon's full policy lives in Seller Central under "FBA Product Restrictions," but these are the ones that matter for OA sellers:

  • Grocery and gourmet food: All subcategories, no price floor
  • Health and beauty: All products under $18 retail
  • Personal care: All subcategories regardless of price
  • Electronics accessories: All products under $25
  • Topical cosmetics and skincare: All subcategories
  • Dietary supplements: All subcategories (effective January 2026)

For most online arbitrage sellers running health, beauty, and grocery leads, this covers a big chunk of your daily buy list. Go through your active inventory now and check the label preference settings on any ASIN in these categories.

If you're new to FBA and aren't sure what any of this means in the context of your overall account setup, start with how to start Amazon FBA from scratch before going deeper on prep and label strategy.

6. What Stickering Actually Costs You Per Unit

Let's run the math. A lot of sellers panic at "new costs" without actually calculating the real impact on their numbers.

Using Amazon's stickering service at $0.65 per unit: on a product where you net $4.50 before stickering, you're now netting $3.85. At 500 units per week, that's $325 per week in stickering fees, or roughly $16,900 per year. That's real money, and it has to come from somewhere in your buy analysis before you purchase inventory.

Labeling yourself at home: cost is your time. With a thermal label printer (Rollo is $99, DYMO 4XL runs around $130) and pre-printed FNSKU sheets, you can do 80 to 100 units per hour. At low volumes, this is manageable. At higher volumes, it becomes the bottleneck fast.

Using a prep center for stickering: expect $0.25 to $0.45 per unit added to your standard prep fee. If your prep center charges $1.00 per unit base, you're looking at $1.30 to $1.45 all-in per unit. This is the right call once you're shipping 200-plus units per week. See prep center vs home prep for a full cost comparison on when that switch makes sense.

The bottom line: if a product doesn't clear your ROI floor after stickering costs, that product shouldn't be in your buy list. Factor it in at the sourcing stage, not after you've already purchased.

Free Live Training

Watch me run this system live every Thursday

Every Thursday at 8 PM EST I run a free 60-minute training where I source, analyze, and ship a real product. Reserve a seat and watch the whole thing.

Reserve My Free Seat →

7. The Counterfeit Problem Amazon Was Actually Solving

Amazon didn't expand mandatory stickering just to collect more fees. The commingling system created a structural problem that was burning legitimate sellers for years.

Bad actors were sending counterfeit units into commingled pools for high-sell-through ASINs in health, beauty, and supplements. When those fake units got returned with "not authentic" complaints, Amazon's system often attributed the complaints to the pool's active sellers, not specifically to whoever sent the counterfeits.

Legitimate sellers with clean inventory were taking account health hits for someone else's fraud. The 2026 expansion removes that exposure for the most commonly targeted categories. From a pure account health standpoint, mandatory stickering in these categories protects legitimate sellers, even if it adds cost per unit.

If you've had any unexplained account health warnings on health, beauty, or supplement ASINs in the last 18 months, this is likely part of why.

8. When Commingled Still Makes Sense in 2026

Commingled isn't dead. For categories not on the mandatory sticker list, it can still be the right call in specific situations.

If you're selling new, sealed products from major national brands in non-restricted categories, and the brand has strong anti-counterfeiting controls (serial numbers, holographic seals, active brand registry enforcement), commingling is generally fine. The contamination risk in those situations is low.

If you're moving high-velocity, thin-margin products in a non-restricted category where the $0.65 stickering fee drops you below your minimum ROI, and you're comfortable with the account health exposure, commingling stays a legitimate option. Monitor your account health metrics actively, not passively.

Anything in the newly restricted categories: mandatory stickering, no exceptions, full stop. There's no workaround worth the account risk.

9. Building a Stickering Workflow That Keeps Margins Intact

The sellers who struggle with this change are the ones who treat stickering as an afterthought. The sellers who adapt fast are the ones who build it into their sourcing criteria from day one.

Here's the workflow I'd set up:

  1. Source with stickering cost already in the numbers. Add $0.40 to your cost column in your analyzer for any product in a restricted category before you buy. If it doesn't hit your minimum ROI at that cost, skip it.
  2. Update your Seller Central label preferences. Go to inventory settings and set the default label preference for restricted categories to "Merchant." Don't rely on memory to catch it at shipment time.
  3. Set up batch printing if you're doing home prep. Print FNSKU label sheets in batches of 30 to 50 at a time. Printing one label at a time kills your throughput. A Rollo printer and thermal label paper costs under $150 total and pays for itself quickly.
  4. Build a pre-shipment checklist. Category, label type, confirmed settings. Thirty seconds per shipment. This catches mistakes before the units are in transit, not after Amazon rejects them at the warehouse.

For the full setup from account creation through your first shipment, the Amazon FBA starter guide covers account settings, prep requirements, and label configuration step by step.

10. What I Changed in My Own Business After the April 2026 Update

I run 80 to 120 unique ASINs in active inventory at any given time. Before April 2026, around 40% of my shipments were commingled. That number is now under 10%.

Everything health and beauty moved to my prep center, with stickering included in the prep fee. I updated my buy analysis to add $0.40 per unit for those categories. That knocked out some deals I was doing regularly before. Fine by me. Those deals were marginal anyway.

"Amazon FBA online arbitrage is indeed scalable, but you are probably doing a lot of things that makes it so you are never going to go over $5,000, $10,000, $15,000, $20,000 in revenue a month." You Will Never Scale Your Amazon FBA Business, Chris Mangunza (Apr 2024)

Ignoring a policy change like this is exactly the kind of thing that caps your growth. It's not just about fees. If your account takes an IP complaint or a safety violation from a commingled counterfeit unit in a now-restricted category, you're not scaling anything.

My grocery purchases go into a dedicated shipment plan set to seller-stickered by default. I rebuilt my shipment templates in Seller Central in about two hours. Not fun, but it's done and it's correct. For building a high-volume sourcing operation around these new cost structures, see the online arbitrage sourcing guide.

11. The Simple Framework: Commingle or Sticker?

One question decides it: is this category on the mandatory sticker list?

If yes: sticker it. No debate, no exceptions, no workarounds. The fee is part of the cost of doing business in that category. Build it into your buy analysis and move forward.

If no: run the math. Add your stickering cost (Amazon's $0.65, your prep center's rate, or your time estimate) to the cost column. If the deal still clears your minimum ROI, stickering is the safer play for account health even when it isn't required. If the margin disappears with stickering and the category is low-counterfeit-risk, commingled is fine.

"To be honest, it's a little bit of both. And to answer the question: yes, Amazon FBA really works." Does Amazon FBA Work? Chris Mangunza (Apr 2024)

FBA works. Rule changes are part of the game. The sellers still growing a year from now are the ones who adjusted in the first 90 days, not the ones who waited to see if Amazon would reverse course.

If you want to see how I run deal analysis in real time with all cost factors (including stickering) baked in from the start, join me at one of my free Thursday trainings. Grab a seat at ngunza.com/register and watch the full sourcing session live. For more on how margins look across a full FBA inventory after the 2026 fee updates, check out the complete Amazon FBA fees breakdown.

12. Next Steps

If you want to go deeper on building a compliant, profitable FBA operation after the 2026 rule changes, here are five posts to read next: