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Black Friday Cyber Monday has never been a cheap weekend for Amazon sellers. Brands discount products, increase advertising budgets, send more inventory into Fulfillment by Amazon (FBA), and compete for shoppers who have dozens of deals sitting one search away.
The tradeoff has always been fairly straightforward: accept a lower margin per sale in exchange for a much larger wave of holiday demand. In 2026, that math gets tighter.
Amazon Black Friday Cyber Monday 2026 will be more expensive for many brands. Sellers are heading into the holiday season with higher fulfillment costs, added peak-season expenses, and plenty of pressure to discount and spend more on advertising. None of those changes is particularly frightening on its own, but during BFCM, thousands of orders can move in a matter of days. Small increases add up quickly.
That does not mean brands should pull back from Black Friday and Cyber Monday. It means they need to look beyond the sales number and understand what each sale is actually worth.
The important question this year is not simply, "How much can we sell?" It's "How much can we afford to sell?" A record sales weekend is a lot less exciting when the margin disappears along the way.
Why Will Amazon Black Friday Cyber Monday Cost More in 2026?
There isn't one massive new Amazon Black Friday fee. Instead, brands are facing several smaller cost pressures at the same time.
Amazon increased US FBA fees in 2026. Holiday peak fulfillment pricing returns in October. A newer fuel and logistics surcharge adds another cost to fulfillment. Promotional fees can increase as promotional sales grow. Meanwhile, brands still need enough discount and advertising firepower to compete during one of the busiest shopping periods of the year.
The danger is not any single line item. It's the stack.
How Much Have Amazon FBA Fees Increased?
Amazon announced an increase of US FBA fees in 2026 by an average of $0.08 per unit. FBA, or Fulfillment by Amazon, is Amazon's program where sellers send inventory into its fulfillment network and Amazon handles storage, picking, packing, and shipping to the customer.
An eight-cent average increase sounds tiny. At 50,000 units, however, that average increase represents another $4,000 in costs. More importantly, brands do not enter BFCM paying only the standard FBA fulfillment fee. Holiday economics add another layer.
What Are Amazon's 2026 Holiday Peak Fulfillment Fees?
Amazon's holiday peak fulfillment pricing runs from October 15, 2026 through January 14, 2027. For FBA and Remote Fulfillment, Amazon says the holiday increase averages $0.32 per unit over non-peak rates and notes that the average increase itself is unchanged from the previous holiday season.
Again, $0.32 does not sound particularly intimidating. At 10,000 units, though, that average difference represents roughly $3,200 in additional fulfillment costs compared with non-peak rates.
Actual fees depend on factors including product size and weight, so that is an illustration rather than a forecast for every seller. But it shows why brands cannot dismiss small per-unit changes during periods of unusually high volume.
What Is Amazon's 3.5% Fuel and Logistics Surcharge?
Amazon added another wrinkle in April 2026 with a 3.5% fuel and logistics surcharge on US FBA fulfillment fees. Unlike a referral fee, this is not 3.5% of the product's selling price. Amazon applies the surcharge to applicable fulfillment fees, including during the holiday peak period.
For an individual order, the impact may barely raise an eyebrow. Across a major holiday promotion, it becomes another expense competing for the same margin.
That is the theme for Amazon BFCM in 2026. No single expense necessarily ruins the economics. Brands need to pay attention to what happens when all of them meet.
How Much Do Amazon Black Friday and Cyber Monday Promotions Cost?
Fulfillment is only one side of the equation. Brands also need an offer strong enough to compete with a search results page full of discounts, and Amazon's promotional programs come with their own costs.
For 2026, Amazon's announced US event structure charges $100 upfront per promotion plus 1.5% of promotional sales, with the variable portion capped at $5,000, for Best Deals, Lightning Deals, and Prime Exclusive Price Discounts during Black Friday Week and Cyber Monday.
Amazon has also set an October 20 deadline for Black Friday Week and Cyber Monday deal submissions. Sellers that submitted by September 5 could save $50 on the upfront promotion fee.
Why Can Record Amazon BFCM Sales Still Produce Disappointing Profit?
Imagine a product that normally sells for $40. The brand runs a 20% Black Friday discount, bringing the customer price down to $32. The customer sees a great deal, while the seller sees $8 less revenue per unit.
The product did not suddenly become 20% cheaper to manufacture. Inbound freight did not get cheaper because it's Black Friday. Amazon still has to fulfill the order, holiday costs can apply, advertising is competing for margin, and promotional costs may be involved.
That's how an ASIN can have a fantastic sales weekend and a surprisingly mediocre profit weekend.
What Should Brands Calculate Before Setting a BFCM Discount?
Brands should start with the contribution margin equation. Take the promotional selling price and subtract referral fees, product cost, FBA fulfillment, holiday costs, applicable surcharges, promotion costs, advertising, and other meaningful variable expenses.
What's left is much closer to the number that should determine how excited you are about another sale.
The equation itself is straightforward. The hard part is calculating it accurately across a catalog where every ASIN can have different economics.
One product may be oversized. Another has thin margins but excellent organic ranking. One converts brilliantly with a modest discount, while another needs significant advertising support. Your hero ASIN might have plenty of inventory while another could stock out if sales increase 30%.
A bigger discount can improve conversion, which changes advertising efficiency and sales velocity. Increased sales velocity then changes inventory requirements and stockout risk. Eventually, every one of those decisions lands back on contribution margin. These should be carefully calculated choices, not guesswork.
Should Every Amazon Product Be Discounted for Black Friday?
No. A blanket "20% off everything" promotion is certainly easy to explain, but that doesn't make it financially smart.
Different ASINs have different margins, inventory positions, review strength, organic rankings, conversion rates, and advertising efficiency. There is little reason to assume they should all receive identical promotions.
Which Products Are Best for Deeper BFCM Discounts?
Products with healthy contribution margins, reliable conversion, sufficient inventory, and a clear opportunity to gain incremental volume are generally better candidates for deeper discounts.
Established products with tighter economics may benefit from moderate discounts instead. Strong organic performers may be able to capture additional demand with advertising support without requiring the deepest possible price cut.
Low-margin ASINs, products with weak conversion, and products at serious risk of stocking out deserve more caution. The goal is not to make every product participate equally. It's to determine where additional BFCM volume is actually valuable.
Is Amazon Black Friday Cyber Monday Still Worth It in 2026?
Yes. For the right brands and products, Black Friday Cyber Monday remains a major Amazon opportunity.
Customers arrive ready to search, compare, and buy. Brands can use that demand to generate significant sales volume, acquire new customers, defend market share, and build momentum heading into December.
The opportunity has not disappeared. The margin for error has gotten smaller.
Brands that understand their economics can decide where to get aggressive and where to hold back. Brands that don't may find themselves making those decisions based on topline sales, ROAS, or whatever number happens to look nicest in Seller Central.
How Should Your Brand Prepare for Amazon BFCM?
Understanding the costs is step one. Managing all of Amazon’s moving pieces profitably is where the real work starts.
If your team needs an experienced Amazon partner to own the strategy and execution, book a meeting with our team. We work with DTC brands to manage and grow their Amazon channel across advertising, catalog, creative, inventory planning, promotions, and profitability.
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