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Shopify

How to Connect USPS to Shopify, Set Up & Link Account for Easy Shipping 2026

By Impran M N

USPS is one of the most widely trusted carriers for US shipping, and connecting it to Shopify keeps order fulfillment smooth and cost-effective. This guide covers how to enable USPS in your Shopify shipping settings, link your account, and configure rates for checkout.

01Open Shopify shipping settings

Navigate to the shipping and delivery section of your Shopify admin to begin the setup.

02Add USPS as a carrier

Locate the carrier options and add USPS as one of your available shipping providers.

03Link your USPS account

Connect your USPS account credentials so Shopify can pull live rates and generate shipping labels.

04Configure shipping rates

Set up the USPS shipping rates and services you want to display to customers at checkout.

05Test USPS rates at checkout

Run a test order to confirm USPS rates calculate correctly before going live.

FAQ

Frequently asked questions

Do I need a USPS business account to connect it to Shopify?

Having a USPS account, or using Shopify Shipping which includes discounted USPS rates, is generally required for this integration.

Is USPS shipping cheaper through Shopify?

Shopify often provides discounted USPS rates compared to retail pricing when you purchase labels directly through the platform.

Can I offer both USPS and other carriers at checkout?

Yes, you can add multiple carriers, including USPS, UPS, or FedEx, and let customers choose their preferred option.

What should I do if USPS rates aren't showing correctly?

Check your shipping zones, package weights, and carrier settings, as inaccurate package details are a common cause of rate issues.

Watch the full walkthrough

The same steps, demonstrated on screen from start to finish.