[{"zip_code": "90001", "state_rate": 0.06, "total_rate": 0.0975, "city_rate": 0.01, "county_rate": 0.0025, "additional_rate": 0.025, "state_tax": 6000.0, "city_tax": 1000.0, "county_tax": 250.0, "additional_tax": 2500.0, "total_tax": 9750.0, "total_price": 109750.0}]
curl --location --request GET 'https://zylalabs.com/api/10506/us+sales+tax+api/20074/sales+tax+calculator?amount=100000&zip_code=90001' --header 'Authorization: Bearer YOUR_API_KEY'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the US Sales Tax API simply include your bearer token in the Authorization header.
| Header | Description |
|---|---|
Authorization
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Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
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The US Sales Tax API is designed to provide an accurate and reliable solution for calculating taxes on each transaction. Its main objective is to simplify the country's complex tax structure, where taxes vary not only at the state level, but also at the city and county levels, with additional rates that may apply depending on location.
By providing a zip code as a parameter, the API returns a complete breakdown of the applicable tax rates. These include the state rate, city rate, county rate, and any additional rates in effect, along with the total combined percentage. In addition, it not only provides the percentages, but also calculates the monetary amounts corresponding to each tax component, allowing you to clearly see how much you are paying at each level.
Another key feature is the ability to calculate the final price of a product or service by automatically adding taxes to the tax base. This is especially useful for e-commerce platforms, financial applications, marketplaces, or any technology solution that needs to display final prices with taxes included in a transparent manner to the consumer.
The API is designed to be fast, accurate, and easy to integrate. Its JSON response structure makes it compatible with multiple programming languages and development environments, facilitating incorporation into existing systems without the need for complex processes. It is also ideal for companies operating in multiple states, as it automates a process that would otherwise involve reviewing updated tax tables and manual calculations.
In an environment where tax accuracy is critical for regulatory compliance and customer trust, this API becomes an essential tool. Its implementation helps reduce human error, streamlines billing processes, and ensures that final prices accurately reflect the tax obligations applicable to each transaction within the United States.
The Sales Tax Calculator endpoint returns detailed tax information, including state, local, and total tax rates based on the provided zip code. It also includes a breakdown of each tax component and the final price after tax is applied.
Key fields in the response include "state_rate," "city_rate," "county_rate," "additional_rates," "total_rate," and "final_price." Each field provides specific tax information relevant to the transaction.
The response data is structured in JSON format, with nested objects for tax rates and a summary of the final price. This organization allows for easy parsing and integration into applications.
The primary parameter for the Sales Tax Calculator endpoint is "zip_code." Users can customize their requests by providing different zip codes to retrieve tax information for various locations.
The data is sourced from official state and local tax authorities, ensuring that the tax rates are current and accurate. Regular updates are implemented to maintain data integrity.
Typical use cases include e-commerce platforms calculating sales tax for transactions, financial applications needing accurate tax reporting, and marketplaces displaying final prices inclusive of taxes to consumers.
Users can utilize the returned data by extracting the relevant tax rates and final price to display accurate pricing information on their platforms. This transparency helps build customer trust and ensures compliance.
Data accuracy is maintained through regular updates from tax authorities and automated checks against known tax tables. This process minimizes errors and ensures that users receive reliable tax calculations.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.
Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.
Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.
Please have a look at our Refund Policy: https://zylalabs.com/terms#refund