BREAKING: USPS slashes address verification to 60 addresses/hour. What now?
Smarty

Tariffs are spiking. Shipping costs are climbing. Margins are shrinking. 

You can’t control global trade policy, but you can control how efficient and accurate your operations are in response.

Most ecommerce teams, logistics planners, and data managers miss one of their best cost-saving opportunities: addressing accuracy.

Bad address data isn’t hidden. It sits in your systems, shows up in carrier returns, and quietly drains profits every day.

When tariffs rise to 15 to 50 percent in some product categories and import volumes are falling, every shipment becomes more expensive, every delay costs more, and every lost customer hurts more.

Fixing bad address data won’t reduce tariff rates.

But it will prevent failed deliveries, avoid customs delays, stop tax errors, and cut re-shipping costs. This means happier customers, stronger margins, and fewer "where is my order" calls from your operations team.

Infographic showing how money is lost with bad address data

You can try out some of Smarty’s tools right now to see how your accuracy could improve, or keep reading below to learn more about address data accuracy and how it can help you combat the rising costs of doing business internationally.

US Address AutocompleteInternational Address AutocompleteUS Address VerificationInternational Address Verification
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Before we dive in, here is what you will learn in this guide:

Tariffs: Policy AND price tags

Before you can fix the problem, you need to understand it. Tariffs are taxes on imported goods, but don’t just sit on government spreadsheets. They quickly become higher prices, slower shipping, and tighter margins that impact your bottom line.

Here’s what’s happening locally:

An image of a graph of dropping profits

Now layer on what’s happening globally:

  • Many essential goods face 15–50% duties, specifically
    • 50% tariffs on Brazilian goods
    • 30% tariffs on South African goods
    • 20% tariffs on Vietnamese goods
    • And more

An infographic showing the risks of misclassifying your mail due to inaccurate postal codes

This means that every shipment counts, and every delivery needs to land. There’s little room for errors caused by something as preventable as bad address data.

Address accuracy is your tariff strategy’s secret weapon

Tariffs are driven by product classification and destination. And both of those depend on one thing: accurate, complete, properly formatted shipping addresses.

When address data is incomplete, incorrect, or not standardized to a country’s format, all kinds of costly problems show up:

  • Incomplete or vague addresses: Correct postal codes and complete address fields also matter. Many tariff engines use postal code + country to calculate duties. A missing or invalid postal code can send a package into manual review limbo or cause it to be overcharged.
  • Missing or incorrect postal codes: These break tariff calculators that depend on country + postal code, often assigning the wrong HS code and inflating duties.
  • Non-standardized formats: Leaving out apartment/unit fields or misordered country codes) can trigger manual customs reviews, storage fees, and costly delays.

And that’s before even considering the everyday operational drag of maintaining a messy address database.

Duplicate records bloat costs by sending marketing mailers or promotional shipments multiple times to the same household. 

Worse, Undeliverable As Addressed (UAA) mail is a money sink for customer-facing and back-office operations. In the U.S. alone, UAA costs businesses and the Postal Service billions annually in wasted postage, printing, handling, and re-shipping. For ecommerce, a UAA package could mean wasted shipping fees, refunding the customer, eating tariff costs, and risking churn.

In an era of rising tariffs, these aren’t edge cases but everyday risks. And they’re entirely fixable.

Brands are already adapting their address data strategy

Smart companies are connecting the dots and making address quality part of their operational edge.

A graphic showing that bigger brands succeed with accurate addresses in store-based fulfillment, local inventory, and order routing software

  • Target fulfills over 80% of its online orders from store inventory, transforming its 1,900+ U.S. stores into micro-fulfillment hubs for faster local delivery.
  • Walmart uses thousands of its retail locations for fulfillment. More than half of online orders are handled directly from stores, enabling rapid same-day and next-day delivery through local inventory.
  • Best Buy also leverages store stock for online order fulfillment, which helps meet customer demand quickly and reduces the strain on central warehouses.
  • Walgreens, CVS, and Target have all expanded store-based shipping to offer competitive delivery speeds and improved inventory efficiency. From a unified stock pool, they serve both in-store and online customers.
  • Store fulfillment strategies also encompass curbside pickup, buy-online-pickup-in-store (BOPIS), and direct shipping from the nearest retail outlet, all of which help retailers provide more flexible and responsive service.
  • Technological solutions such as store inventory management systems and order routing software are common investments to support accurate and efficient in-store fulfillment operations.

None of these strategies work without having address accuracy at the center.

How to win in a high-tariff world

If you’re still cleaning up address errors post-checkout or hoping your carrier catches them, you're already behind. With tariffs this high, you must get address data right first.

An infographic explaining the 4 steps to take in order to fight the rising cost of doing business due to tariffs

Start by validating addresses in real time at checkout with an autocomplete solution that ONLY suggests valid addresses, like Smarty’s! 

Ensure the whole country, postal code, street name, building number, and apartment/unit details are in place and correct. Use tools that localize address formats to the recipient’s country, especially when shipping globally.

Don’t just validate for existence. Validate for deliverability according to your business strategy.

Next, pair address quality with local fulfillment when possible. Ship domestically to avoid tariff-prone international routes. And if you must ship cross-border, make sure your address data is airtight to prevent customs surprises.

Major retailers continuously track trade policy shifts to adapt sourcing and inventory strategies. You don’t need their logistics budget to do the same, but you need clean, trusted address data as your foundation.

What’s coming next: automation, accuracy, and address-powered savings

We’re already seeing the next wave of address-enabled solutions hit the market.

We might expect tariff calculators at checkout that rely on verified addresses to calculate landed costs before the “Buy Now” button. No more surprises for customers, or your CFO. (Thankfully, Smarty eats the cost of tariffs for you so you won’t see one on our site 😘).

AI-driven fulfillment will soon dynamically route orders through warehouses and shipping lanes, choosing the lowest-cost paths based on tariff exposure, address precision, and delivery SLAs.

As brands increase their focus on sustainability, accurate addresses will become essential for reducing failed deliveries and minimizing waste. Major brands already use delivery success rates to hit carbon goals and customer satisfaction metrics.

Final takeaway

Tariffs are squeezing your margins; there’s no cheat code to turn them off. But address accuracy? That’s a power-up you can activate today and try out for free without even talking to someone or giving us a credit card (although we’d love to chat!).

Every time you validate an addressautocomplete it accurately, or format it to match international standards, you’re preventing a delivery failure, a customs delay, a re-shipment cost, or a tariff misclassification.

And if you’re not doing that yet, now’s the time.

Smarty can help you:

  • Autocomplete and validate addresses in real time
  • Standardize international formats in over 250 countries and territories
  • Reduce false positives and flag incomplete or invalid addresses before they cost you money
  • Geocode to rooftop accuracy
  • Deduplicate your records with SmartyKey® persistent, unique IDs

Don’t let bad data make your tariff problem worse.

👉 See how Smarty makes your address data work harder (and your shipments smarter) at smarty.com.

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