Peak Season International Shipping: 5 Things Brands Should Check Before Q4

Last Updated: September 04, 2026

Peak season is fast approaching, and there’s still time to make the operational tweaks that can determine whether international orders arrive as promised or become a source of customer frustration.  

International orders don’t follow exactly the same playbook as domestic orders. Transit times are generally longer, carrier cutoffs can be earlier, and customs, duties, product-level compliance, and dangerous-goods requirements all add layers of complexity. When not proactively optimized, those complexities can quickly create big bottlenecks or result in steep (surprise) costs.  

For brands already shipping internationally, use this checklist to stress-test your supply chain. For brands considering international expansion, peak season can also be a useful forcing function, but only if the upstream infrastructure is ready. 

Here are five areas to focus on before peak. 

1. Start With Shipping from the Customer’s Perspective

Peak season boils down to one ultimate goal: ensuring your customer gets their order how and when they expect it. 

That delivery promise starts well before a package leaves the warehouse. 

One of the easiest mistakes to make is applying your domestic holiday shipping calendar to international orders. International standard and express services have different transit times and cutoff dates, and those timelines can vary by destination.   

Before peak, work backward from the customer promise and ask: 

• When does an international order need to leave the warehouse? 
• What transit times are you promising customers? 
• Are there markets that require earlier cutoffs? 
• Are standard and express services being communicated differently? 
• Are those dates reflected accurately across your site and customer communications? 

International peak planning should start with the customer delivery promise, then work backward through fulfillment and transportation. 

2. Audit Everything at the Product Level

International shipping gets complicated quickly when product data isn’t accurate or complete. Before peak, audit the information that will travel with every international shipment, including: 

• HS codes 
• Product descriptions 
• Declared values 
• SKU identifiers 
• Manufacturer or product identifiers where required 
• Packaging and labeling 
• Dangerous-goods classifications and labels 
• Country-specific requirements 
• Supporting customs documentation 

This is particularly important as customs authorities increasingly expect more detailed, product-level information. There is a broader shift that’s happening across international commerce where generic descriptions, inaccurate classifications, and undervalued shipments are increasingly risky. 

As Shawn Compton, Chief Logistics Officer at DCL Logistics, says “The days of having some kind of generic description or some kind of misrepresented HTS code and value, are gone.” 

And while international documentation is not inherently difficult, it can feel complex because of how precisely it needs to be completed.  

A note on dangerous goods. Products that may seem routine domestically, such as perfume, aerosols, hand sanitizer, sunscreen, or products containing lithium-ion batteries, can have additional requirements when shipped internationally, particularly due to the likelihood of using air services to ship them. 

All product-level audits should also include dangerous-goods requirements. The classification may stay the same, but how the product can move can change depending on the transportation mode, destination, and carrier. 

For brands expanding their assortment, this is especially important. A new SKU can introduce a new compliance requirement without anyone realizing it until the product is ready to ship. 

3. Get Clear on Your Total Landed Cost

Peak season rarely goes exactly according to plan. In supply chain operations there are always exceptions. You may need additional fulfillment labor to keep up with volume. Marketing may want to introduce expedited shipping. A carrier disruption may require an alternative service. Customer service volume may increase as customers track holiday orders. 

Understanding those costs ahead of time gives brands much more room to make good decisions when volume increases.  

For international orders, your total landed cost equation is: 

Product cost + shipping + duties + taxes + fees = actual economics 

But there’s more you should consider, like currency conversion, returns, and any costs associated with returning goods internationally (taxes, duties, etc).   

Predicting landed cost is not purely financial. This calculation is part of the customer experience. Unexpected charges can create friction at checkout, while unexpected post-shipment costs can erode margins after the order has already been placed. 

That becomes particularly important when customs rules change. The recent EU customs changes are a great example.  

The lesson for peak: know what an international order actually costs before you put it on promotion. 

4. Stress-Test Your Carrier Network

Customers generally don’t care which carrier delivers their package. They care that the package contains what they ordered and arrives when they were told it would. That makes carrier flexibility an important part of peak planning. 

Before peak, look beyond your primary carrier and understand: 

• Which carriers support each destination? 
• What service levels are available? 
• What are the transit-time differences? 
• What does each option do to your margin? 
• Which carriers can handle your product types? 
• Are there country-specific capabilities you should be taking advantage of? 
• What happens if your primary carrier experiences a disruption? 

Carrier redundancy isn’t about adding complexity for the sake of complexity. It’s about creating options when conditions change. 

Rathna Sharad, Founder and CEO of FlavorCloud, says, “What you don’t want happening, is getting stuck when there’s a carrier strike. We’ve seen that happen in the last peak. But you want to ensure that you have redundancy in your network.” 

A multi-carrier strategy can give brands another option when a carrier experiences capacity constraints, disruptions, surcharges, or other unexpected issues. For international shipping, that flexibility can be even more important because carrier capabilities and requirements can vary by country. 

5. Align Marketing, Operations, and Your Partners

International expansion doesn’t happen in a vacuum. Marketing may be thinking about which markets to launch, what promotions to run, and when to start driving demand. Operations need to understand what that demand means for inventory, fulfillment capacity, shipping services, and customer promises. 

Those conversations need to happen before you launch anything. 

Start by aligning on: 

• Promotional calendar 
• Target markets 
• Expected order volume 
• Inventory availability 
• Shipping service levels 
• Free or expedited shipping offers 
• International cutoff dates 
• Fulfillment capacity 
• Customer communication  

This is also where the right partners can make a difference. Brands may need a combination of fulfillment expertise, international shipping capabilities, customs and brokerage support, and technology that can help manage the complexity across markets. 

Natalie Eden, Director of Customer Success at DCL Logistics, says, “I think it’s just critical to always go in with plenty of questions, and getting the most amount of expertise along the way, so that they can plan for growth accordingly.” 

The goal isn’t simply to find someone who can move a package from point A to point B. It’s to build an operating model that can flex as the brand, channels, products, and markets change. 

The Bottom Line: Peak Can Be a Forcing Function for International Growth 

Peak season can expose operational gaps, but it can also help brands identify where they’re ready to grow. 

For brands already shipping internationally, now is the time to audit your product data and compliance, landed costs, and stress-test your carrier network. And map out all cutoff dates. 

For brands that aren’t shipping internationally yet, start with the data. 

You don’t necessarily need to launch everywhere at once. International expansion doesn’t have to begin with 50 countries. It can begin by identifying the markets where demand already exists. Look at where international visitors are coming from. Where customers are already showing interest. Where your products have an opportunity to resonate.  

That’s the foundation for turning international demand into sustainable growth—not just during peak, but beyond it. 

Tags: International, Omnichannel Fulfillment