Amazon FBA fees eat into every sale you make. For most sellers, total fees consume 30-45% of the sale price — and in competitive categories with heavy ad spend, that number climbs even higher. The difference between a profitable Amazon business and one that bleeds cash often comes down to how well you manage and minimize those fees.
The good news: many of these fees are within your control. A few strategic changes to your packaging, inventory management, and fulfillment approach can save you thousands of dollars per year. Here are 12 proven strategies that successful sellers use to reduce their FBA costs in 2026.
1 Optimize Your Packaging Dimensions
This is the single highest-impact change most sellers can make. Amazon's FBA fulfillment fees are determined by size tier, which is based on the longest side, median side, shortest side, and unit weight of your packaged product. Moving from one size tier to the next lower tier can save you $1-3+ per unit.
Here are the key size tier thresholds for standard-size products in 2026:
- Small standard-size: 15" x 12" x 0.75", up to 1 lb — fulfillment fee around $3.06-$3.68
- Large standard-size: 18" x 14" x 8", up to 20 lb — fulfillment fee around $4.25-$7.40+
- Large bulky: Up to 60" on longest side, up to 50 lb — fulfillment fee jumps to $9.73+
Practical steps: Measure your product multiple ways. Can you fold it differently? Use a thinner box? Remove excess packaging material? Work with your manufacturer to reduce packaging by even half an inch on one dimension. A product that measures 15.2 inches on its longest side pays large standard fees instead of small — sometimes $1.50+ more per unit for less than a quarter inch.
Potential savings: $0.50-$3.00+ per unit
2 Ship to Multiple Fulfillment Centers
Amazon's Inbound Placement Service fee charges you for the convenience of shipping to a single warehouse. If you are willing to split your shipment across multiple destinations, you can eliminate or significantly reduce this fee.
The "Amazon-optimized shipment splits" option (formerly the default distributed inventory placement) sends your inventory to the fulfillment centers Amazon chooses, typically 3-5 locations. This option incurs no inbound placement fee or a minimal one.
Yes, shipping to multiple warehouses costs more in freight. But compare: if your inbound placement fee is $0.58 per unit on 2,000 units ($1,160), versus the additional freight cost of splitting that shipment into four smaller ones (maybe $200-400 extra in shipping), the distributed option saves you $700-900.
Run the numbers for your specific products using Amazon's fee estimator or a tool like Reevy's FBA calculator. The break-even point depends on your unit size, weight, and how many fulfillment centers Amazon assigns.
Potential savings: $0.20-$1.00+ per unit
3 Maintain a High IPI Score
Your Inventory Performance Index (IPI) score determines whether Amazon charges you overage fees and how much storage capacity you receive. An IPI score below 400 triggers storage limits and potential overage fees of $10 per cubic foot — on top of regular monthly storage fees.
To keep your IPI score healthy:
- Reduce excess inventory by running promotions, adjusting prices, or creating removal orders for stale SKUs
- Improve your sell-through rate by maintaining a 90-day supply (not 180+ days)
- Fix stranded inventory immediately — these are listings where your inventory exists in FBA but is not available for purchase, usually due to listing errors
- Keep your in-stock rate high for your top-selling products
A healthy IPI score (500+) keeps your storage costs predictable and prevents the brutal overage fees that blindside sellers during Q4 when capacity tightens.
Potential savings: Avoids $10/cubic foot overage fees
See Exactly Where Your Fees Go
Reevy's free FBA calculator breaks down fulfillment, referral, and storage fees for any product across 21 Amazon marketplaces.
Try the Free FBA Calculator →4 Avoid Long-Term Storage and Aged Inventory Surcharges
Amazon's aged inventory surcharge kicks in at 181 days and escalates sharply after 271 and 365 days. The best defense is monitoring your inventory age weekly and taking action before surcharges trigger.
Set calendar reminders at the 120-day and 150-day marks. At 120 days, reduce your price or run a Lightning Deal to accelerate sell-through. At 150 days, create a removal order for any units you cannot sell within the next 30 days. The removal fee ($0.97+ per unit) is almost always cheaper than the aged inventory surcharge plus continued monthly storage.
Some sellers also use outlet deals or Amazon Warehouse to liquidate aging inventory at a discount, which at least recovers some cost versus paying surcharges indefinitely.
Potential savings: $1.50-$6.90+ per cubic foot avoided
5 Use Subscribe & Save Strategically
Enrolling your products in Amazon's Subscribe & Save program might seem counterintuitive for fee reduction since you offer a discount. But it drives consistent, predictable sales velocity — which helps you avoid aged inventory surcharges and maintain a healthy IPI score.
The Subscribe & Save discount (typically 5-10%) comes out of your margin, but the benefits compound: lower return rates (subscribers rarely return), better inventory planning (predictable demand), and no PPC cost on subscription reorders. For consumable products, the math almost always works in your favor.
Potential savings: Indirect — better inventory velocity, lower return rates
6 Bundle Products to Reduce Per-Unit Fees
Selling a bundle of two or three related items as a single unit can dramatically reduce your effective per-item FBA fee. Amazon charges fulfillment fees per unit shipped, not per item within a unit. A bundle of three items that ships as one package pays one fulfillment fee instead of three.
Example: Three small accessories sold individually at $12 each pay roughly $3.06 in fulfillment per unit ($9.18 total for three). Bundled as one unit at $30, the combined package might pay $4.50-$5.50 in fulfillment as a single slightly larger unit. That is a savings of $3.68-$4.68 per "set" sold.
Bundles also help differentiate your listing from competitors, reduce your per-sale ad cost, and can justify a higher price point. Just make sure the bundled package stays within the standard-size tier thresholds.
Potential savings: $2.00-$5.00+ per bundle vs individual sales
7 Negotiate Freight and Shipping Rates
The cost of getting inventory to Amazon's warehouses is one of the largest line items for most sellers, especially those importing from overseas. Strategies to reduce freight costs:
- Consolidate shipments: Ship larger quantities less frequently instead of small shipments every week
- Use Amazon's partnered carrier rates: For domestic shipping, Amazon's partnered carriers (UPS, FedEx) often offer discounted rates through Seller Central
- Compare sea freight forwarders: Get quotes from at least three forwarders and negotiate based on volume commitments
- Consider LCL vs FCL: If your shipment does not fill a full container, Less than Container Load (LCL) is cheaper, but the per-unit cost drops significantly once you can fill a 20-foot or 40-foot container
- Ship during off-peak: Freight rates spike from August through October (pre-holiday). Shipping your Q4 inventory in June or July can save 20-40% on freight
Potential savings: 15-40% on inbound shipping costs
8 Optimize Product Weight
FBA fulfillment fees factor in dimensional weight and actual weight. For many products, shaving a few ounces can drop the fee by $0.20-$0.50 per unit. Work with your manufacturer to:
- Use lighter packaging materials (corrugated instead of rigid boxes, thinner polybags)
- Remove unnecessary inserts, manuals, or packaging components
- Reformulate or redesign the product itself where feasible (lighter materials, smaller form factor)
Pay close attention to the weight breakpoints in Amazon's fee schedule. A product at 1.02 lb pays more than one at 0.98 lb. These small differences matter at volume.
Potential savings: $0.20-$1.00 per unit
9 Choose the Right Fulfillment Option for Each Product
Not every product belongs in FBA. Slow-moving, large, or heavy items often cost less to fulfill through Fulfilled by Merchant (FBM) or Seller Fulfilled Prime (SFP) than through FBA.
Run a side-by-side comparison for each SKU: FBA fees versus the cost of storing and shipping from your own warehouse or a third-party logistics provider (3PL). Products with slow turn rates, large dimensions, or low selling prices may be better suited to FBM, where you avoid FBA storage fees entirely.
A hybrid approach — using FBA for your fast-selling SKUs and FBM for long-tail or oversized products — often yields the best overall fee profile.
Potential savings: $2.00-$8.00+ per unit on poorly-suited FBA products
10 Manage Inventory Seasonally
Amazon's monthly storage fees are not flat throughout the year. From January through September, standard-size storage runs about $0.78 per cubic foot. From October through December, that rate jumps to $2.40 per cubic foot — more than three times the off-peak rate.
Smart sellers plan their inventory around this seasonality. Ship your Q4 inventory in August or early September, before the rate increase. For products that do not sell well during the holidays, consider reducing FBA stock to a 30-day supply by October 1st and replenishing from your own warehouse as needed.
This strategy requires more active inventory management, but the storage fee savings during Q4 can be substantial for sellers with large inventory footprints.
Potential savings: $1.62 per cubic foot during Q4
11 Remove Inventory Before Aged Surcharges Hit
This is a simple timing play that many sellers miss. If you have inventory approaching the 181-day mark and it is not selling fast enough to clear before the surcharge triggers, create a removal order immediately.
The math: Removing 200 units at $0.97 per unit costs $194. Letting those same units sit for another three months costs you the aged inventory surcharge (potentially $1.50+ per cubic foot) plus three more months of storage fees. In most cases, removing and either liquidating or reshipping later is cheaper.
You can also use Amazon's FBA Liquidations program to recover a portion of your cost. Amazon sells the inventory through wholesale channels, and you receive a portion of the proceeds. It is better than paying disposal fees and surcharges.
Potential savings: $1.50-$6.90 per cubic foot in avoided surcharges
12 Seek Category Approval for Lower Referral Rates
Amazon's referral fee — the percentage of the sale price Amazon takes on every transaction — varies by category. Most categories charge 15%, but some are lower:
- Consumer electronics: 8%
- Computers: 8%
- Video game consoles: 8%
- Automotive: 12%
- Camera and photo: 8%
If your product could reasonably be listed in a lower-referral-fee category, make sure you are categorized correctly. Some products sit in a 15% category when they qualify for an 8-12% category. Review Amazon's fee schedule for your product type and reclassify if appropriate. On a $30 product, the difference between 15% and 8% is $2.10 per unit — which adds up fast.
Potential savings: 3-7% of sale price on correctly re-categorized products
Adding It All Up
No single strategy will transform your FBA economics overnight. But stacking several of these optimizations creates a compounding effect. A seller doing 5,000 units per month who saves $1.50 per unit across packaging optimization, smarter inbound shipping, and better inventory management puts an extra $7,500 per month — $90,000 per year — back into their business.
Start with the strategies that require the least effort: check your size tier (strategy 1), audit your inventory age (strategy 4 and 11), and compare inbound placement fees versus distributed shipping (strategy 2). These three alone can save most sellers $0.50-$2.00 per unit with minimal disruption.
Model Your Fee Savings
Use Reevy's free FBA calculator to compare your current fees against optimized scenarios across all 21 Amazon marketplaces.
Try the Free FBA Calculator →