Amazon Long Term Storage Fees: The 2026 Update Every FBA Seller Must Know

Amazon long term storage fees overhaul is here, and it is changing the math for every FBA seller.

What used to be a minor penalty is now a margin killer for slow-moving SKUs. The 181-day rule means you have less time to react, and the cost of inaction is rising.

If you sell on Amazon, this guide can help as it:

• Explains the new rules
• Shows how to calculate your true costs
• Reveals how leading sellers use automation to protect margins and scale confidently

What are Amazon long term storage fees, and why do they matter in 2026?

Amazon long term storage fee overhaul in 2026 shortens the surcharge window and increases costs for slow-moving SKUs.

Sellers now have just 181 days before long-term storage fees (LTSF) kick in, down from 271 days in previous years.

Long-term storage fees are extra charges Amazon applies to inventory that sits unsold in fulfillment centers beyond a set period.

Unlike standard monthly storage fees, which are based on the space your products occupy, LTSF are penalty surcharges that escalate the longer your inventory remains unsold.

What changed in 2026

Table: 2026 Storage Fee Changes

• 181–270 days: $0.50 per cubic foot surcharge
• 271–365 days: $1.50 per cubic foot surcharge
• 365+ days: $6.90 per cubic foot (or $0.15 per unit, whichever is higher)

These surcharges are assessed monthly on the 15th, based on Amazon’s inventory snapshot.

Regional differences matter:

• Canada: Surcharges start at 271 days, not 181
• UK/EU: Most surcharges begin at 365 days, though some categories now start at 241 days

For sellers with slow-moving inventory, this means higher risk and less time to respond. A single SKU can rack up hundreds, or even thousands, in fees if left unchecked.

For high-volume or multichannel sellers, missing these new deadlines can quietly erode profits across your entire catalog. To understand your risk, you need to know exactly how these fees are calculated under the new rules.

Suggested Read: Optimize Amazon Inventory Turnover for Better Profitability

How Amazon calculates storage fees: The new rules explained

Amazon calculates storage fees using inventory age, volume, and category. Here is the formula for 2026.

Key variables:

• Inventory age: Days since Amazon received your product
• Volume: Cubic feet (or units for some oversized items)
• Product type: Standard-size, oversized, apparel, etc.
• Seasonal surcharges: Higher rates during peak season (Oct 15–Jan 14)

Step-by-step example

Imagine you have 100 units of a standard-size item, each occupying 0.1 cubic feet (10 cubic feet total), received July 15, 2026.

• August 15 (30 days): Storage fee is 10 cu ft × $0.78 = $7.80
• October 15 (92 days, peak season starts): Storage fee is 10 cu ft × $2.40 = $24.00
• January 15, 2027 (184 days): Now in the 181–270 day surcharge bracket. Storage fee ($7.80) + Surcharge ($5.00) = $12.80
• April 15, 2027 (275 days): Storage fee ($7.80) + Surcharge ($15.00) = $22.80
• August 15, 2027 (366 days): Storage fee ($7.80) + Surcharge ($69.00) = $76.80

Aging timeline

Table: Aging timeline and costs per cubic foot

Now that you know how fee calculations work, let’s see how they impact your actual profits when you calculate your true costs.

Suggested Read: How to Calculate Cost of Goods Sold (COGS) in QuickBooks (2026 Guide)

How Amazon storage fees destroy your profit margins

Storage fees can turn profitable SKUs into losses if you do not track all costs. Let’s take an example to illustrate this.

Suppose you sell a $20 item on Amazon.

• Cost of goods: $7
• Amazon referral fee (15%): $3
• FBA fulfillment fee: $3.50
• Storage (first 6 months): $0.47
• Storage (next 3 months, aged): $1.14
• Storage (final 3 months, 365+ days): $2.31
• Total storage over 12 months: $3.92

Net margin after 12 months will be:

• Total fees and COGS ($17.42) subtracted from Revenue ($20) leaves a profit of $2.58, or a 13% margin
• If the item sells within 90 days, storage is just $0.19, and the margin is 33%

If it sits for a year, storage fees alone cut your profit by more than half.

Margin erosion by seller type

Table: Margin Erosion by Seller Type

A 5% SKU aging rate can cost $5,000–$40,000 per year, depending on business size.

For many sellers, these fees are not visible until margins have already disappeared. Tracking true profitability requires bringing together fees, COGS, and fulfillment costs, often across multiple channels.

To protect your margins, you need to track and reconcile these fees accurately.

Suggested Read: Know your true margins with SKU-level profitability

5 proven ways to slash your Amazon long term storage fees

Proactive inventory management is the only way to avoid long-term storage penalties.

1. Forecast demand: Use historical sales data and seasonality to predict demand. Adjust reorder points and quantities to avoid overstocking. Regularly review sales velocity for each SKU.
2. Early detection: Do not wait for Amazon’s monthly snapshot. Review inventory age weekly and set alerts for SKUs approaching the 150-day mark so you can act before surcharges hit.
3. Liquidation: If inventory is unlikely to sell, use FBA Liquidations to recover 5–15% of your cost. This is often better than paying escalating storage fees or removal costs.
4. Removal orders: When the margin drops below your threshold or inventory exceeds 181 days, submit removal orders. Weigh the removal fee against the cost of continued storage.
5. Alternative fulfillment: Move slow-moving SKUs to a 3PL or your own warehouse. This can reduce storage costs and give you more control over aged inventory.

Decision matrix:

• If the margin drops below 15%, discount or liquidate
• If inventory exceeds 150 days, review for removal or alternative fulfillment

Sellers who react to aging inventory save an average of 30% in fees compared to those who wait for surcharges. Real-time inventory dashboards and SKU aging alerts are essential tools for prevention.

Even with the best proactive inventory management, some fees slip through, especially across multiple channels.

Suggested Read: A Complete Guide to Multi-channel Inventory Management

Why manual fee tracking fails (and what to do instead)

Manual tracking of storage fees leads to missed charges and lost margin, especially as you scale.

• Manual tracking: Relies on spreadsheets and delayed reports, is prone to human error, and cannot keep up with hundreds of SKUs or multiple channels
• Automated tracking: Provides real-time alerts for SKUs nearing surcharge thresholds, SKU-level fee matching, and faster month-end closes

Example: Amazon charged LTSF on 50 units that were actually sold three days prior. Manual tracking missed the error, costing $75 in unnecessary fees. Every reconciliation error costs an average of $10–$50 per SKU. For a catalog of 500 SKUs, that adds up quickly.

Manual vs. automated workflow:

Table: Manual vs. Automated Workflow

Automated reconciliation tools can flag discrepancies, map fees to the right SKUs, and ensure you are not leaving money on the table. Webgility users save up to 90% of time on reconciliation and track true margins down to the SKU.

Suggested Read: Ecommerce Accounting Basics

Amazon’s tools vs. modern automation: What actually works

Native Amazon tools show estimates, but unified dashboards deliver real-time, actionable insights.

Amazon’s native tools:

• Fee Preview: Estimates upcoming storage and fulfillment fees for each SKU
• Inventory Performance Index (IPI): Scores inventory health and recommends actions

Limitations:

• Single-channel: Focus is on Amazon only
• Delayed data: Not always SKU-accurate
• No integration: Lacks connection with accounting integration or other sales channels

What you actually need:

• Real-time inventory sync across all channels (Amazon, Shopify, Walmart)
• Automated fee reconciliation is mapped to each SKU

Table: Feature Comparison

Webgility enables real-time inventory sync, automated fee reconciliation, and SKU-level profitability reporting. Users close their books 3 times faster and handle 10 times more orders with the same team.

Webgility in action: Real-world results

Sellers using automation catch 95% more fee errors and scale without extra hires.

JVR Industries slashed order-processing time from 10 minutes to just 2 minutes per order. By reclaiming this staff capacity, the company supported record product launches and tripled its sales volume.

Watch the full video: Webgility Case Study - JVR Industries

Conclusion: Turn storage fee risk into a competitive advantage

Amazon’s 2026 storage fee changes require new strategies and real-time visibility. The 181-day rule and higher surcharges mean you must act faster and track true margins at the SKU level.

Proactive inventory management, early detection, and unified automation are now essential to protect profits and scale confidently. Review your inventory age, calculate your true margins, and consider unified tools for tracking and reconciliation.

Learn more about Amazon marketplace integration and real-time inventory tracking with Webgility.

Get a demo.

FAQs

What products are most at risk for long-term fees?

Slow-moving SKUs, seasonal items, and products with low sales velocity are most at risk. Monitor inventory age and sell-through rates closely.

How do I check which SKUs are nearing the 181-day threshold?

Use Amazon’s Inventory Age report or a unified inventory dashboard with SKU aging alerts. Review weekly to catch at-risk items early.

Can I dispute storage fees with Amazon?

Yes, but only if you can prove an error, such as units sold or removed before the fee date. Keep detailed records and use automated reconciliation to catch discrepancies.

What is the best way to track fees across multiple channels?

Unified inventory and accounting platforms can automate SKU aging alerts and centralize fee tracking for all your sales channels.