What is Tax [tax] Product Attribute? Google Free Listings (2025)

Accurate and engaging tax adjustments via the tax [tax] product attribute enhance product listings.

Written by
Torbjørn Flensted
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January 10, 2025

When it comes to U.S. sales tax, being transparent and accurate can greatly improve user trust—and conversion rates. The Tax [tax] attribute helps you override or modify default tax settings from your Merchant Center account for individual products, ensuring shoppers see a correct tax amount during checkout. This can be crucial if some of your items are tax-exempt or if they’re subject to a special rate that doesn’t match your general rules.

What is Tax [tax] Product Attribute?

The Tax [tax] attribute allows you to specify a custom tax rate (or a zero rate) for particular items in the United States. While you can often rely on Merchant Center’s general tax configuration, there are cases—like reduced tax items or special state exemptions—where you need a finer level of detail. In these instances, the product-level Tax [tax] attribute overrides your account-level settings.

What are Free Listings? Google’s free listings let you showcase your products on Search, the Shopping tab, and other Google surfaces without direct ad costs. Submitting accurate tax details ensures your listings remain compliant and transparent, helping you win customer trust from the moment they see your product info.

By specifying the correct tax rate, you avoid big mismatches between what shoppers expect to pay and the final checkout total. This clarity can reduce cart abandonment and maintain your Merchant Center compliance.

Where Does Google Merchant Center Fit In?

Google Merchant Center is your platform for product data and feed management. Typically, you’ll set a baseline for U.S. tax in your account settings. However, if some items need exceptions or overrides, Tax [tax] is your go-to. Remember: Tax [tax] always supersedes your account-level settings for that specific product.

When to Use Tax [tax]

You only need to submit this attribute if you’re targeting the United States and require a unique tax rate for certain products. Here are some scenarios:

  • Tax-Exempt or Different Rate: Items like groceries, medical devices, or nonprofit goods might be taxed at a lower or zero rate.
  • Product-Specific Situations: If one SKU qualifies for special state reductions, you can override your standard rate.
  • Complex Regional Adjustments: If your general settings don’t cover every ZIP code or region precisely, you can declare them at a product level.

If your base Merchant Center settings handle all your products just fine, there’s no need to submit Tax [tax]. But for outliers, it’s invaluable.

Sub-Attributes of Tax [tax]

The Tax [tax] attribute uses these sub-attributes to define U.S. state tax rules for each product:

  1. Country [country] (Optional)
    • Only supports “US.” If left blank, defaults to “US.”
  2. Area (Optional)
    • Region [region]: ISO 3166-2 code for a U.S. state, like “CA” for California.
    • Postal code [postal_code]: A single ZIP or a range (e.g., “94043” or “94002-95460”).
    • Location ID [location_id]: A numeric criteria ID from the Google Ads API (like “21137” for California).
  3. Rate [rate] (Required)
    • Specifies the tax rate as a percentage (e.g., “8.75” for 8.75%).
  4. Shipping tax [tax_ship] (Optional)
    • Indicates whether shipping charges are also taxed (“yes” or “no”).

You can submit up to 100 Tax [tax] entries per product for different regions, postal codes, or states.

Minimum Requirements for Tax [tax]

Falling short of these requirements can trigger disapprovals:

  1. Cover All U.S. Locations: If you opt to override tax settings for a product, you must address every possible U.S. location—either with a specific rate or “0.”
  2. Accurate or Overestimate: Don’t under-quote. If you’re unsure, round up slightly. But avoid massive overestimates that may harm your conversion rate.
  3. Comply with U.S. Law: Ensure your rate is legally correct. Shoppers expect final costs to match what’s on your site.
  4. Use This Attribute Only for U.S.: The Tax [tax] override applies strictly to U.S. sales tax, not VAT or import duties in other countries.

Tax [tax] vs. Account-Level Tax Settings

Understanding how these two differ is key to maintaining smooth operations:

A) Merchant Center Account Tax Settings

Usually your primary approach. You can have simple flat rates or rely on Google’s automatic tax calculation for the U.S. If everything lines up, you won’t need further overrides.

B) Tax [tax] Attribute

Manually fine-tune or override for specific products. If some items differ from the norm—like medical supplies or zero-tax educational materials—use Tax [tax]. It takes precedence over your main tax configuration.

Best Practices

Boost your feed efficiency and clarity:

  • Set Baseline in Merchant Center: Let Google auto-calculate or set general rates first. Then override only when absolutely necessary.
  • Submit Zero Tax for Exempt Items: If a product is nontaxable, specify “rate [rate] = 0.”
  • Bundle Regions if Similar: If many states share the same custom tax rate, you can group them in your main settings or use multiple Tax [tax] entries carefully.
  • Include Shipping Tax: If your state taxes shipping fees, mark tax_ship [tax_ship] as “yes.”
  • Stay Updated on Laws: U.S. tax law changes periodically. Keep an eye on any new requirements or exemptions.

Pro tip: Use an AI tool to optimize your product feed

Examples

Below is a table illustrating frequent oversights vs. correct usage:

Google Tax Attribute Examples

Scenario

Before (common mistakes)

After (optimized corrections)

Missing Tax Attribute

No tax attribute provided for the product.

tax: US:CA:90001:8.75

Incorrect Tax Rate Formatting

tax: 0.0875

tax: US:CA:90001:8.75

Using Non-ISO Region Codes

tax: US:California:90001:8.75

tax: US:CA:90001:8.75

Missing Required Rate Sub-Attribute

tax: US:CA:90001

tax: US:CA:90001:8.75

Submitting Multiple Tax Attributes Incorrectly

tax: US:CA:90001:8.75, US:NY:10001:8.875

tax: US:CA:90001:8.75
tax: US:NY:10001:8.875

Using Non-English Terms

tax: US:CA:90001: huit point soixante-quinze

tax: US:CA:90001:8.75

Exceeding Maximum Number of Tax Entries

tax: [101 tax entries]

tax: [up to 100 tax entries]

Incorrect Sub-Attribute Order

tax: US:8.75:CA:90001

tax: US:CA:90001:8.75

Using Unsupported Tax Rates

tax: US:CA:90001:15.00

tax: US:CA:90001:8.75

Omitting Tax for Shipping When Required

tax: US:CA:90001:8.75

tax: US:CA:90001:8.75, tax_ship: yes

Using Relative URLs Instead of Absolute URLs

tax: /taxes/CA/90001:8.75

tax: US:CA:90001:8.75

Incorrect Country Code

tax: CAN:ON:12345:13.00

tax: US:ON:12345:7.00

Using Text Instead of Numeric Rates

tax: US:CA:90001:eight point seven five

tax: US:CA:90001:8.75

Not Covering All U.S. Locations

tax: US:CA:90001:8.75

tax: US:CA:90001:8.75
tax: US:NY:10001:8.875
tax: US:TX:73301:8.25

Incorrect Tax Ship Attribute

tax: US:CA:90001:8.75, tax_ship: maybe

tax: US:CA:90001:8.75, tax_ship: yes

Pro tip: See two Google product feed examples (from 2 different online stores)

Why the Right Tax Rate Matters for Free Listings

A mismatch between the listed and actual tax can deter potential buyers at the last step—especially in the U.S., where tax can vary by state and sometimes even by ZIP code. By providing precise product-level tax details, you reduce unpleasant surprises at checkout, instill customer confidence, and conform to local regulations.

Moreover, displaying accurate costs (including tax) can streamline your buyer’s journey, lowering cart abandonment. In a competitive environment—where shoppers compare total prices across multiple stores—being upfront with your tax rate is an advantage.

Common Pitfalls & How to Avoid Them

  • Submitting Non-U.S. Data: This attribute applies only to U.S. sales tax. Any mention of VAT or other countries’ taxes is invalid.
  • Ignoring Exempt Items: If you have items with special tax rules, you must either handle them in Merchant Center or specify Tax [tax] with a “0” rate.
  • Incomplete Coverage: Overriding only one region while ignoring others might cause inconsistencies—Google’s system expects tax data for all relevant U.S. areas if you’re using overrides.
  • Mismatched Formats: Accidentally listing sub-attributes in the wrong order can lead to erroneous rates or a disapproved product.
  • Leaving Out Shipping Tax: If your location requires you to tax shipping, forgetting the tax_ship [tax_ship] setting could be misleading.

Related Attributes

Tax information goes hand in hand with other product attributes. Pay attention to the following:

  • Price [price]: The base price of your product. Make sure the final total lines up.
  • Shipping [shipping]: If you charge shipping, you may also need to include shipping tax.
  • Ships From Country [ships_from_country]: Helps identify origin but doesn’t directly address tax unless it’s within the U.S.

Check Merchant Center’s “Needs attention” tab for feed issues or missing tax data. If you use schema.org, refer to the structured data guidelines for products. Below is a table of attributes—those marked Required are mandatory for free listings, while “recommended” ones add clarity.

Tools For Small Businesses Table
Attribute Additional Details
Id [id] Required
Unique identifier for each product.
Example: "SKU12345".
Ensure each product has a distinct ID to avoid duplication in your inventory.
Title [title] Required
Descriptive product title.
Example: "Men's Waterproof Hiking Boots".
A clear and concise title helps customers quickly understand the product.
Link [link] Required
URL to the product page.
Example: "https://yourstore.com/products/mens-waterproof-hiking-boots".
Ensure the link directs to the most relevant product page for accurate indexing.
Image link [image_link] Required
Main image URL.
Example: "https://yourstore.com/images/mens-waterproof-hiking-boots.jpg".
Use high-quality images that accurately represent the product to enhance customer trust.
Price [price] Required
Current price of the product.
Example: "$89.99".
Keep pricing information up-to-date to reflect any changes or promotions.
Description [description] Required
Detailed product description.
Example: "Durable hiking boots with waterproof material and reinforced soles for all terrains".
Provide comprehensive details to help customers make informed purchasing decisions.
Availability [availability] Required
Stock status.
Example: "In Stock".
Accurate availability information prevents customer frustration due to stock discrepancies.
Condition [condition] Required
Product condition.
Example: "New".
Clearly state the condition to set correct customer expectations.
Brand [brand] Required
Brand name.
Example: "Columbia".
Associating with a reputable brand can enhance product credibility.
Gtin [gtin] Required
Global Trade Item Number.
Example: "012345678905".
Ensure GTINs are accurate to improve product visibility in search results.
Mpn [mpn] Required
Manufacturer Part Number.
Example: "COL-HB-2024".
Use MPNs to uniquely identify products without GTINs, ensuring precise cataloging.
Multipack [multipack] Required
Number of items in a pack.
Example: "2-pack".
Clearly indicate multipacks to inform customers about the quantity they are purchasing.
Bundle [is_bundle] Required
Indicates if the product is a bundle.
Example: "Yes" for a camping gear set.
Bundles can offer better value and attract customers looking for complete solutions.
Color [color] Required
Main color of the product.
Example: "Forest Green".
Specify colors accurately to help customers find products that match their preferences.
Size [size] Required
Size specification.
Example: "11 US".
Provide standardized sizing to ensure customers select the correct fit.
Age group [age_group] Required
Target age demographic.
Example: "Adult".
Specify age groups to tailor product listings to the appropriate audience.
Gender [gender] Required
Intended gender for the product.
Example: "Unisex".
Clearly defining gender helps in accurately categorizing products for search and display.
Item group ID [item_group_id] Required
Identifier for product variants.
Example: "BOOT-COL-2024".
Use item group IDs to group similar products, enhancing organization and searchability.
Shipping [shipping] Required
Shipping details.
Example: "Free shipping within 5 business days".
Provide clear shipping information to set accurate delivery expectations.
Tax [tax] Required
Tax information.
Example: "Tax included".
Ensure tax details comply with regional regulations to avoid legal issues.
Pattern [pattern] Recommended
Description of the product's pattern.
Example: "Camouflage".
Including pattern details can attract customers looking for specific designs.
Material [material] Recommended
Main material used.
Example: "Gore-Tex fabric".
Highlighting materials helps customers understand product quality and functionality.
Additional image link [additional_image_link] Recommended
URLs of extra product images.
Example: "https://yourstore.com/images/mens-waterproof-hiking-boots-side.jpg".
Provide multiple images to showcase different angles and features of the product.
Size type [size_type] Optional
Size measurement system used.
Example: "US", "EU".
Specify the size type to accommodate international customers and reduce sizing confusion.
Size system [size_system] Recommended
Standardized size system.
Example: "US".
Using a standardized size system ensures consistency across different product listings.
Link in Google Search Index [canonical_link] Recommended
Canonical URL for better search indexing.
Example: "https://yourstore.com/products/mens-waterproof-hiking-boots".
Implementing canonical links helps prevent duplicate content issues and improves SEO performance.

FAQs About Tax [tax]

Do I need to use this if Google’s automatic tax settings cover all my products correctly?

No. If your general Merchant Center tax settings handle everything accurately, you don’t need Tax [tax]. It’s a fallback for exceptions or custom scenarios.

What if I don’t charge tax in any U.S. location?

Simply configure your Merchant Center to reflect a 0% tax across the board, or for those that demand a product-level approach, specify “rate [rate] = 0” for the entire U.S. coverage.

Does “rate [rate] = 0” affect how Google displays my items?

It tells shoppers they won’t pay tax for that specific product in their region. This can reassure them if they’re used to seeing tax on other items.

How do I handle complex ZIP code splits or city-based taxes?

Use multiple Tax [tax] entries per product, each defining a range of postal codes. For instance, “US:94002–95460:8.75” and “US:900*–901*:9.5” to differentiate local rates.

Can I override shipping tax at the product level if it’s already set at account level?

Yes, the tax_ship [tax_ship] sub-attribute can override your account-level “tax shipping” setting for that product.

Why is “region [region]” optional if “postal_code [postal_code]” is also optional?

Google only allows one “area” sub-attribute—region, postal_code, or location_id—per Tax [tax] entry. Which one you choose depends on how granular you want to get. Provide more detail if needed.

Does this attribute cover import duties or VAT outside the U.S.?

No. Tax [tax] only overrides U.S. sales tax. For other regions or tax types, you’ll need to follow local guidelines or set up alternative configurations.

Conclusion

While Merchant Center’s default tax settings often suffice for most product lines, certain items demand specialized rules—be it a reduced rate or complete exemption. That’s where the Tax [tax] attribute steps in. By specifying custom sub-attributes (e.g., state, postal code, or location ID, plus rate), you ensure that U.S. shoppers see precisely the right tax details.

Not only does this transparency mitigate cart abandonment, but it also aligns your business with local compliance standards. In a competitive environment—where total price accuracy matters—getting your product-level tax data right can offer a sharper edge and better customer satisfaction in Google’s free listings.

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What is Tax [tax] Product Attribute? Google Free Listings (2025)

This is an article written by:

Passionate SEO expert, Torbjørn Flensted, boasts two decades of industry experience. As the founder of SEO.ai and having run an SEO agency for 13 years, he's spent the last decade pioneering cutting-edge tools, transforming how agencies and professionals approach Search Engine Optimization.