If you sell products online, you already know shipping costs have been creeping up for years. But 2026 is different. This year, e-commerce sellers are being squeezed from three directions at once: annual carrier rate hikes that keep compounding, a tariff regime that has fundamentally changed the cost of imported goods, and a live geopolitical crisis in the Strait of Hormuz that is disrupting global shipping routes right now.

Each of these alone would be enough to dent your margins. Together, they create a cost environment that rewards sellers who act early and punishes those who wait.

This guide breaks down what is driving shipping costs higher, why the next few months are a critical window, and what you can do now to protect your business heading into the busiest part of the year.

Annual carrier rate hikes: the "normal" that keeps getting worse

Every January, the major carriers raise their rates. It has become as reliable as the seasons. But the headline numbers, typically around 5.9% from UPS, FedEx, and USPS, tell only part of the story.

The real impact is in the surcharges. According to Sifted's analysis of the 2026 GRI, surcharges now account for approximately a third of the average package cost. FedEx residential delivery surcharges alone increased by more than 8% this cycle. Dimensional weight pricing continues to tighten, meaning lighter but bulky items get hit harder than ever.

In the UK, the picture is similar. Royal Mail's fuel surcharge jumped from 8% to 11% as of January 2026, and courier rates across DPD, Hermes, and DHL have all followed suit. For sellers shipping cross-border, these increases compound. You are paying more on both ends.

The effective rate increase for most e-commerce sellers is not 5.9%. It is closer to 8–12% once surcharges, accessorial fees, and dimensional weight adjustments are factored in. And unlike a one-off spike, these increases are permanent. Next year's hike will build on this year's.

The tariff double-whammy

Shipping rates are only one piece of the cost equation. The goods inside those boxes are getting more expensive to source, too.

The US tariff landscape shifted dramatically in 2025. The de minimis exemption, which previously allowed goods valued under $800 to enter the US duty-free, was eliminated for shipments from China in May 2025 and expanded globally in August 2025. For sellers who relied on direct-from-manufacturer imports or low-value consignments, this was a seismic change.

More broadly, the US weighted-average tariff rate has jumped from roughly 2% to over 20%, driven by successive rounds of tariffs on Chinese goods and expanded duties on categories including electronics, textiles, and consumer products. For UK-based sellers shipping to US customers, the maths is even more painful: post-Brexit export costs to the EU, combined with new US duties, mean that cross-border selling carries a significantly higher landed cost than it did just two years ago.

The practical impact is straightforward. Inventory that cost you $10 per unit to land in your warehouse last year might now cost $12 or $13. That margin erosion flows directly into your per-order economics, especially if you have not yet adjusted your pricing.

The Strait of Hormuz crisis: a live supply chain shock

As if structural cost increases were not enough, a major geopolitical disruption is now layering additional pressure onto global shipping.

Since late February 2026, the Strait of Hormuz — one of the world's most critical shipping chokepoints — has been effectively closed to commercial traffic following military escalation between the US, Israel, and Iran. Tanker traffic through the strait dropped by roughly 70% in the first days of the crisis and has since fallen to near zero.

The numbers are stark. Around 20% of the world's daily oil supply passes through this strait, along with significant volumes of liquefied natural gas and containerised goods. Major shipping lines including MSC, Hapag-Lloyd, and CMA CGM have suspended transits and are rerouting vessels around the Cape of Good Hope, adding 10 to 14 days to transit times and triggering emergency surcharges. Hapag-Lloyd has applied a war risk surcharge of $1,500 per TEU on bookings issued since early March. The Drewry World Container Index rose 8% in the week of 12 March to $2,123 per 40ft container, and is expected to continue climbing.

For e-commerce sellers, the downstream effects go beyond shipping rates. Approximately 85% of polyethylene exports from the Middle East travel through the Strait of Hormuz. Polyethylene is the base material for most plastic packaging, polybags, bubble wrap, and shipping mailers. Shortages and price increases in packaging materials are already being forecast. Petrochemical inputs for electronics, batteries, and consumer goods are similarly affected.

Supply chain analysts are advising businesses to plan for 3 to 6 months of disruption. The initial impact on ocean freight may take 2 to 5 weeks to fully materialise as diverted containers arrive in clusters, terminal congestion builds, and drayage capacity tightens. But for sellers who source internationally or rely on long supply chains, the time to act is before the congestion hits, not after.

Why Q2 is the window to act

These three forces — carrier rate hikes, tariff-inflated input costs, and Hormuz-driven disruption — are compounding simultaneously. And they are doing so just as the calendar moves toward the busiest and most expensive shipping period of the year.

Q3 and Q4 bring peak season surcharges from every major carrier. Last year, FedEx and UPS peak surcharges added $1.50 to $6.00 per package during the holiday period, on top of already-elevated base rates. If you layer peak surcharges on top of a 2026 baseline that is already 8–12% higher than last year, plus Hormuz war risk premiums, the cost per shipment in November and December could be significantly higher than anything sellers have faced before.

The sellers who will be in the strongest position are the ones who act now, in Q2, while rates have not yet peaked and inventory is still moving. That means locking in annual shipping contracts with carriers or 3PLs at current rates before peak surcharges kick in, bulk-purchasing inventory at today's prices rather than waiting for tariff-adjusted costs to fully flow through, and building buffer stock to ride out Hormuz-related delays without stockouts during peak.

The common thread is that all of these actions require upfront capital. And that is where the right funding can turn a defensive move into a strategic advantage.

How working capital helps you get ahead

For e-commerce sellers watching costs rise across the board, the instinct might be to tighten spending and wait it out. But in a cost environment like this one, spending strategically now can save significantly more later.

An Uncapped Loan gives you a lump sum of working capital to deploy where it matters most. You can use it to negotiate and pre-pay annual shipping contracts with carriers or 3PLs, securing rates before peak season premiums apply. You can bulk-purchase inventory from suppliers at current prices, before tariffs and shipping surcharges push landed costs higher. And you can build the safety stock you need to avoid costly stockouts during the Q4 rush, when delays from Hormuz rerouting may still be rippling through supply chains.

Uncapped's Loans work differently from traditional business loans. There is a simple origination fee rather than compounding interest, so you know your total cost of capital upfront. Terms start from just 3 months. Decisions are made within 24 hours. And there is no personal guarantee required. Your business performance is what matters.

Five things to do this month

Audit your shipping spend. Pull your invoices from Q4 2025 and Q1 2026. Calculate your effective per-package cost including surcharges, not just the base rate. If you do not know your real cost per shipment, you cannot negotiate or optimise.

Right-size your packaging. Dimensional weight pricing means oversized boxes cost you money on every shipment. If you have not reviewed your packaging in the last 12 months, do it now. Even small reductions in box dimensions can meaningfully lower costs at scale.

Negotiate multi-carrier rates. If you are shipping exclusively with one carrier, you are leaving money on the table. Get quotes from at least two alternatives. Use your volume as leverage. Regional carriers often offer better rates for specific lanes.

Bulk-buy inventory early. If you have reliable demand forecasts for Q3 and Q4, purchasing inventory now locks in today's costs before tariff-adjusted pricing and Hormuz-related material shortages push them higher.

Secure working capital before you need it. The worst time to seek funding is when you are already cash-constrained. Applying now, while your business is healthy and your options are open, gives you the flexibility to act when opportunities arise.

The bottom line

Shipping costs in 2026 are not going back to where they were. Annual carrier hikes have compounded for years. Tariffs have fundamentally reset the cost of imported goods. And the Strait of Hormuz crisis is adding real-time disruption and surcharges on top of an already-expensive baseline.

The sellers who come through this strongest will be the ones who treated Q2 as a window to invest: in inventory, in shipping contracts, and in the working capital to make those moves possible.

Apply for an Uncapped Loan today