Using TaxJar with Squarespace

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Using TaxJar with Squarespace

Last updated October 15, 2025 19:18

Automatically calculate US sales tax during checkout.

TaxJar is a third-party service you can connect to your site to streamline your business’s sales tax filing and reporting.

Use this guide to decide which TaxJar features you need for your store, which Squarespace and TaxJar plans to subscribe to, and how to enable these features. For help with TaxJar beyond connecting and disconnecting the extension, contact TaxJar's support.

TaxJar is only available for US-based sellers and US taxes. Squarespace’s automated tax feature supports both US and international sales. Learn more about setting up tax rates.

Note: This guide offers useful information, but it isn't legal or accounting advice. Squarespace doesn't provide advice about laws applicable to your site or business, as stated in our Terms of Service. If you have questions about collecting taxes, consider speaking with a tax advisor.

TaxJar features

You can use these features with the TaxJar extension:

Automatic tax rate calculations

We recommend using Squarespace’s automatic taxes feature. While TaxJar also offers automatic tax calculations, it’s only available for US-based sellers and US taxes. When you connect TaxJar, it calculates sales tax at checkout using your business location, the customer’s address, and your sales tax nexus. Some Squarespace plans may require a paid TaxJar account.

Sales tax filing and reporting

TaxJar’s AutoFile and Sales Tax Reports include automatic electronic filing for state sales tax and provide accurate, detailed reports for sales and sales tax collected by state and local jurisdictions. Depending on your Squarespace plan, you may need to sign up for a paid TaxJar plan to use this feature.

Squarespace and TaxJar plans

Squarespace and TaxJar require specific plans, depending on if you use automatic tax rate calculations, sales tax filing and reporting, or both. Use this table to find which Squarespace and TaxJar plans you need:

Connect the TaxJar extension

Before enabling TaxJar, review Squarespace and TaxJar plans to find which Squarespace and TaxJar plans you’ll need. You’ll also want to review your current website billing plan and upgrade your plan if needed.

Note: TaxJar’s automatic calculations conflict with Squarespace’s automated taxes. Connecting TaxJar to your site disables your automated taxes and limits tax collection to the United States. To restore your automated tax settings, disconnect TaxJar.

To enable TaxJar:

1. Open the Extensions panel.
2. Search for “TaxJar” and connect to the extension.
3. In the TaxJar window that appears, click Create Account.
4. If you have an existing TaxJar account, you'll still enter your information, then click Create Account.
5. A Try signing in link appears at the top of the page. Click the link, then log in with your TaxJar account information.
6. After you log into your TaxJar account, in the upper right-hand corner, click your email address. From the dropdown menu, select Business profile.
7. Enter your business information in the fields and click Save information.
8. Open the Taxes panel.
9. To review details about TaxJar, click See Details.
10. To connect the extension, click Connect.
11. Choose the site you'd like to connect, then click Allow.
12. In the TaxJar window, enter your information, then click Create Account to create your TaxJar account.
    1. If you have an existing TaxJar Professional account, you'll still enter your information, then click Create Account. After you click, a Try signing in link appears at the top of the page. Click the link, then log in with your TaxJar account information.
13. After you log into your TaxJar account, in the upper right-hand corner, click your email address. From the dropdown menu, select Business profile. Enter your business information in the fields and click Save information.

Add your business locations in TaxJar

After adding your TaxJar account and entering your Business profile information, add the registered states where you’ll charge sales tax. Ensure you add all states where you do business. Learn more about the states where you have business locations, also called “nexus.”

1. Click Add State Registrations.
2. Under Nexus states, select a state from the State dropdown menu and enter your information in the rest of the fields on the page.
3. Check Enable TaxJar's API to calculate sales tax for this state.
4. Click Save information.
5. Click Add state to add more states. Repeat these steps for each state where you'll charge sales tax.

After connecting TaxJar and adding state registrations, the setup is complete. TaxJar’s automatic calculations handle every taxable order in those states (including county and postal rates). Connecting TaxJar overrides and disables any manually created US tax rates. To restore your manual rates, disconnect TaxJar.

Add product tax categories in Squarespace (optional)

Product tax categories enables you to charge category-specific taxes during checkout. After you sign up for TaxJar and add business locations, you can return to your Squarespace site and add tax categories to your products when editing your product details.

Keep in mind:

• You can only add one tax category to each product in your store.
• If you don’t add product tax categories, all of your products are taxed at the standard sales tax rate, based on your business locations and registered states.
• Squarespace uses categories provided by TaxJar. You may not always find tax categories that correspond exactly with the kinds of products you sell. If you're not sure which category to use for a specific product, we recommend consulting with your tax advisor to confirm the appropriate tax codes for your business.

To learn more about product tax categories, visit TaxJar.

Note: While we work with third-party services to ensure Squarespace Extensions work properly, extensions fall outside our scope of support. We can help with connecting or disconnecting your extensions. For all other questions, contact the extensions provider directly.

Disconnect the TaxJar extension

To disable TaxJar:

1. Open the Taxes panel.
2. Click Disconnect TaxJar.
3. Click Disconnect.

All tax rates you added before switching to automatic rates are turned back on.

FAQ

How can I switch to the built-in automated taxes feature?

If you're currently using TaxJar, disconnect TaxJar from your site. Then, enable automated taxes from the Taxes panel and complete the setup process.

Why is there an “incomplete setup” warning?

An Incomplete setup warning will display if you connected TaxJar but didn't register states where you'll charge sales tax. When this message displays, it means your site isn't automatically charging sales tax at checkout. To resolve the issue, click Go to TaxJar and add your business locations.

Where should I collect sales tax?

You should collect sales tax in states where you have business locations, also called nexus. This includes states where you have a physical location, and other states where you make sales, depending on the local laws. To learn more, contact a tax professional. You might also find TaxJar’s documentation helpful.

Where does the tax data come from?

Your store calculates sales tax automatically using TaxJar’s real-time sales tax data. If you have questions about the tax rates your store is charging, contact TaxJar.

Why didn’t my store charge sales tax?

Your store won’t charge sales tax after you set up automatic rates if:

• You didn't complete the TaxJar connection process. Ensure the taxes panel displays a green Connected message beside TaxJar. If an Incomplete setup message displays, add your business locations in TaxJar to complete the process.
• An order is outside the United States and you haven’t set up international tax rates.
• An order is in a US state for which you haven’t enabled nexus in your TaxJar state settings.
• An order contains products with applied tax categories that are exempt at the order’s shipping or billing address.

I disconnected TaxJar. Why are some customers still being charged tax?

Tax rates set up through TaxJar may continue to be added to orders, even after you disconnect your TaxJar extension. This happens for customers who have signed up for recurring subscription products or memberships. The amount your customer pays remains the same even after you disconnect TaxJar. Their total is based on their initial order, which includes the price of the product plus any taxes.

This doesn't happen with one-time orders. If your customer wants to continue their subscription, but doesn't want to continue paying the tax rate:

1. You can cancel their subscription or membership fee. Your customer can also cancel their subscription or membership fee.
2. Ask your customer to sign up again for their subscription or membership. Their new charges won't include taxes.

Can I connect more than one Squarespace site to my TaxJar account?

No. You can connect only one Squarespace site to your TaxJar account. To connect another Squarespace site to TaxJar, you'll need to create a second TaxJar account, using a different email address.

Who do I contact for support?

For help enabling this extension or setting up your online store, contact us. You can also give feedback about the extension.

For questions about sales tax, rate calculation, or changing your TaxJar settings, contact TaxJar.

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Using TaxJar with Squarespace