Top Taxes by Postal Code API alternatives in 2025

Top Taxes by Postal Code API Alternatives in 2025

As businesses and developers increasingly rely on accurate tax data for compliance and financial planning, the demand for robust APIs that provide tax information by postal code has surged. In 2025, several alternatives to traditional tax APIs have emerged, offering unique features and capabilities. This blog post explores the best alternatives to the US Postal Tax API, detailing their functionalities, pricing, pros and cons, ideal use cases, and how they differ from the US Postal Tax API.

1. US Taxes by Zip Code API

The US Taxes by Zip Code API is a powerful and easy-to-use tool designed to simplify the process of accessing up-to-date tax rates for businesses operating in the United States. This API provides real-time access to the latest tax rates applicable across the country, ensuring that users receive accurate tax rate information as soon as it becomes available.

Key Features and Capabilities

The US Taxes by Zip Code API offers several key features:

• Health Check: To use this feature, make a GET request to /health-check to confirm that the API is active and working correctly.

{"status":true,"message":"up"}

This feature ensures that developers can verify the API's operational status before making requests.

• Tax Get: To retrieve sales tax information using a ZIP code, send a GET request to the appropriate endpoint.

{"status":true,"message":"success","data":{"zip_code":501,"state":"NY","state_rate":"0.04000","county_rate":"0.04250","city_rate":"0.00000","special_rate":"0.00375","city":"Brookhaven","population":null}}

This feature allows users to obtain detailed tax rates for a specific ZIP code, including state, county, city, and special rates.

• Tax Search: To search for sales tax rates by city name, send a POST request to the designated endpoint.

{"status":true,"message":"success","data":[{"zip_code":26385,"state":"WV","state_rate":"0.06000","county_rate":"0.00000","city_rate":"0.00000","special_rate":"0.00000","city":"Lost Creek","population":4203},{"zip_code":26810,"state":"WV","state_rate":"0.06000","county_rate":"0.00000","city_rate":"0.00000","special_rate":"0.00000","city":"Lost City","population":454},{"zip_code":47354,"state":"IN","state_rate":"0.07000","county_rate":"0.00000","city_rate":"0.00000","special_rate":"0.00000","city":"Losantville","population":1075}],"count":3}

This feature provides flexibility for users who want to retrieve tax rates based on city names, making it easier to manage tax calculations across multiple locations.

Pricing Details

Pricing information for the US Taxes by Zip Code API is available on their website, typically structured around usage tiers based on the number of requests.

Pros and Cons

Pros:

• Real-time access to tax rates ensures compliance with the latest regulations.
• Multiple endpoints allow for flexible data retrieval based on ZIP code or city name.

Cons:

• May require additional integration effort for complex applications.
• Pricing can escalate with high usage.

Ideal Use Cases

This API is ideal for e-commerce platforms, accounting software, and any application that requires accurate sales tax calculations based on user location.

How It Differs from US Postal Tax API

While both APIs provide tax data, the US Taxes by Zip Code API offers more flexibility with its city search feature and real-time updates, making it a better choice for businesses operating in multiple jurisdictions.

2. Postal Code Global API

The Postal Code Global API is a versatile tool that provides users with seamless access to a vast repository of zip code data, making it invaluable for various applications.

Key Features and Capabilities

The Postal Code Global API includes the following features:

• Get Information by Zip Code: To use this feature, you must enter a zip code in the parameter.

{"query":{"codes":["99950"],"country":null},"results":{"99950":[{"postal_code":"99950","country_code":"FI","latitude":"69.47290000","longitude":"25.95270000","city":"Karigasniemi","state":"Lapland","city_en":"Karigasniemi","state_en":"Lapland","state_code":"19","province":"Pohjois-Lappi","province_code":"197"}]}}

This feature allows users to retrieve detailed information about a specific postal code, including geographic coordinates and city details, which is essential for location-based services.

Pricing Details

Pricing for the Postal Code Global API is typically based on usage, with various tiers available depending on the volume of requests.

Pros and Cons

Pros:

• Comprehensive global coverage of postal codes enhances usability for international applications.
• Easy integration with existing systems due to clear documentation.

Cons:

• May not provide tax-specific data, limiting its use for tax calculations.
• Data accuracy can vary by region.

Ideal Use Cases

This API is ideal for applications that require extensive postal code data, such as logistics, shipping, and location-based services.

How It Differs from US Postal Tax API

The Postal Code Global API focuses on providing comprehensive postal code data rather than tax-specific information, making it more suitable for applications that require geographic data rather than tax calculations.

3. Search Canadian Postal Code API

The Search Canadian Postal Code API simplifies the process of finding Canadian postal codes, making it a valuable tool for businesses operating in Canada.

Key Features and Capabilities

This API offers the following features:

• Get Canadian Zip Code: To use this feature, you must enter an address, city, and a province code (e.g., AB, BC).

{"address":"371-232 2 Nd Ave NE","city":"Kelowna","province":"BC","postal_code":"V4V 1P4"}

This feature allows users to retrieve the postal code associated with a specific address, enhancing location accuracy for businesses.

Pricing Details

Pricing for the Search Canadian Postal Code API is structured based on usage, with various tiers available for different levels of access.

Pros and Cons

Pros:

• Real-time updates ensure data accuracy for Canadian postal codes.
• Easy integration into applications enhances user experience.

Cons:

• Limited to Canadian postal codes, which may not be suitable for businesses operating internationally.
• Data may not cover all rural areas comprehensively.

Ideal Use Cases

This API is ideal for e-commerce platforms, logistics companies, and any application that requires accurate Canadian postal code data.

How It Differs from US Postal Tax API

While the US Postal Tax API focuses on tax data, the Search Canadian Postal Code API specializes in providing postal code information, making it more suitable for applications that require geographic data in Canada.

4. Canada Postcode Insights API

The Canada Postcode Insights API provides accurate Canadian postal code information instantly, optimizing logistics and enhancing user experiences.

Key Features and Capabilities

This API includes the following features:

• Information by Zip Code: To use this feature, you must indicate a Canadian postal code in the parameter.

{"Code":200,"Description":"OK","Data":[{"ZipCode":"B0N 2H0","City":"MAPLE GROVE","County":null,"State":"NS","CountyFIPS":null,"StateFIPS":null,"TimeZone":"4","DayLightSavings":null,"ZipLatitude":"45.034715","ZipLongitude":"-63.350948"}]}

This feature provides detailed geographic information for a given postal code, including city names, geographic coordinates, and time zone data.

Pricing Details

Pricing for the Canada Postcode Insights API is typically based on usage, with various tiers available depending on the volume of requests.

Pros and Cons

Pros:

• Comprehensive geographic data enhances logistics and shipping accuracy.
• Real-time updates ensure users have the most current information.

Cons:

• Limited to Canadian postal codes, which may not be suitable for businesses operating in other countries.
• Data accuracy may vary in remote areas.

Ideal Use Cases

This API is ideal for logistics companies, e-commerce platforms, and applications that require accurate Canadian postal code data for shipping and delivery.

How It Differs from US Postal Tax API

The Canada Postcode Insights API focuses on providing geographic data rather than tax-specific information, making it more suitable for applications that require location-based services in Canada.

5. Sales Tax by Zip Code US API

The Sales Tax by Zip Code US API provides accurate and up-to-date sales tax rates for specific zip codes in the US, making it an essential tool for businesses.

Key Features and Capabilities

This API offers the following features:

• Get Taxes by Zip Code US: To use this feature, all you have to do is insert a US zip code.

{"rate_Special":{"text":"0.375% (Special)","value":"0.00375"},"rate_State":{"text":"4% (State)","value":"0.04000"},"rate_City":{"text":"4.5% (City)","value":"0.04500"},"combined":{"text":"8.875% (Combined)","value":"0.08875"},"type":"successful"}

This feature provides detailed sales tax rates, including special, state, city, and combined rates for any valid US zip code, ensuring accurate financial planning.

Pricing Details

Pricing for the Sales Tax by Zip Code US API is structured based on usage, with various tiers available depending on the volume of requests.

Pros and Cons

Pros:

• Comprehensive coverage of sales tax rates across the US.
• Real-time updates ensure compliance with the latest tax regulations.

Cons:

• May require additional integration effort for complex applications.
• Pricing can escalate with high usage.

Ideal Use Cases

This API is ideal for e-commerce platforms, accounting software, and any application that requires accurate sales tax calculations based on user location.

How It Differs from US Postal Tax API

While both APIs provide tax data, the Sales Tax by Zip Code US API focuses specifically on sales tax rates, making it a better choice for businesses that need to manage sales tax compliance.

6. American ZIP Code Tax Rates API

The American ZIP Code Tax Rates API provides real-time U.S.A sales tax rates by ZIP code, ensuring accurate financial planning and compliance for businesses and individuals.

Key Features and Capabilities

This API includes the following features:

• Get Taxes: To use this feature, all you have to do is indicate a zip code in the parameter.

{"state": "FL", "state_rate": 0.06, "estimated_combined_rate": 0.07, "estimated_county_rate": 0.01, "estimated_city_rate": 0.0, "estimated_special_rate": 0.0, "risk_level": 0.0}

This feature provides detailed sales tax rates, including state, county, city, and any special rates applicable to the specified ZIP code, ensuring users have the information they need for compliance.

Pricing Details

Pricing for the American ZIP Code Tax Rates API is typically based on usage, with various tiers available depending on the volume of requests.

Pros and Cons

Pros:

• Granular data allows for precise tax calculations.
• Real-time updates ensure compliance with the latest tax regulations.

Cons:

• May require additional integration effort for complex applications.
• Pricing can escalate with high usage.

Ideal Use Cases

This API is ideal for e-commerce platforms, accounting software, and any application that requires accurate sales tax calculations based on user location.

How It Differs from US Postal Tax API

The American ZIP Code Tax Rates API focuses specifically on sales tax rates, making it a better choice for businesses that need to manage sales tax compliance.

7. Taxes by State API

The Taxes by State API helps users obtain the taxes by US state, simplifying the process of calculating sales tax rates based on location.

Key Features and Capabilities

This API offers the following features:

• Zip Code: It will receive the parameter and provide it with a JSON response.

{"state": "CA", "state_rate": 0.06, "estimated_combined_rate": 0.09375, "estimated_county_rate": 0.0025, "estimated_city_rate": 0.0025, "estimated_special_rate": 0.02875, "risk_level": 0.0}

This feature allows users to retrieve sales tax information tailored to the exact location of interest, ensuring accurate calculations.

Pricing Details

Pricing for the Taxes by State API is structured based on usage, with various tiers available depending on the volume of requests.

Pros and Cons

Pros:

• Comprehensive coverage of state-specific tax rates enhances usability.
• Real-time updates ensure compliance with the latest tax regulations.

Cons:

• May require additional integration effort for complex applications.
• Pricing can escalate with high usage.

Ideal Use Cases

This API is ideal for e-commerce platforms, accounting software, and any application that requires accurate sales tax calculations based on user location.

How It Differs from US Postal Tax API

The Taxes by State API focuses on state-specific tax rates, making it a better choice for businesses that need to manage sales tax compliance across different states.

8. Canada Postal Codes API

The Canada Postal Codes API provides programmatic access to the complete set of postal codes in Canada, making it a valuable resource for businesses operating in Canada.

Key Features and Capabilities

This API includes the following features:

• Get Canada Info: To use this feature, all you have to do is run it, and it will return information such as street name, city, province, latitude, longitude, type, postcode, and confidentiality number.

[{"id": 1,"City": "EDMONTON","Type": "HWY","Unit": "","Count": "1","aType": "NonRES","Number": "408","Street": "28a HWY","Latitude": "53.840313","PostCode": "T0A0H0","Province": "AB","Direction": "","Longitude": "-113.321822","Confidence": "0.7","Street Name": "28A"}]

This feature allows users to retrieve detailed information about Canadian postal codes, enhancing location accuracy for businesses.

Pricing Details

Pricing for the Canada Postal Codes API is typically based on usage, with various tiers available depending on the volume of requests.

Pros and Cons

Pros:

• Comprehensive coverage of Canadian postal codes enhances usability.
• Real-time updates ensure users have the most current information.

Cons:

• Limited to Canadian postal codes, which may not be suitable for businesses operating internationally.
• Data accuracy may vary in remote areas.

Ideal Use Cases

This API is ideal for e-commerce platforms, logistics companies, and any application that requires accurate Canadian postal code data for shipping and delivery.

How It Differs from US Postal Tax API

The Canada Postal Codes API focuses on providing postal code information rather than tax-specific information, making it more suitable for applications that require geographic data in Canada.

9. Tax City Zip API

The Tax City Zip API is a powerful tool for users seeking accurate and efficient solutions for managing complex US sales tax calculations.

Key Features and Capabilities

This API includes the following features:

• Get Taxes: To use this feature, all you have to do is insert a zip code in the parameter. You will also have two optional parameters where you can enter a city and a state.

[{"zip_code": "95201", "total_rate": "0.090000", "state_rate": "0.060000", "city_rate": "0.012500", "county_rate": "0.002500", "additional_rate": "0.015000"}]

This feature provides detailed sales tax rates for specific locations, including total rates and breakdowns by jurisdiction, helping users understand tax obligations.

Pricing Details

Pricing for the Tax City Zip API is structured based on usage, with various tiers available depending on the volume of requests.

Pros and Cons

Pros:

• Accurate data ensures compliance with the latest tax regulations.
• Flexible parameters allow for tailored data requests.

Cons:

• May require additional integration effort for complex applications.
• Pricing can escalate with high usage.

Ideal Use Cases

This API is ideal for e-commerce platforms, accounting software, and any application that requires accurate sales tax calculations based on user location.

How It Differs from US Postal Tax API

The Tax City Zip API focuses specifically on sales tax calculations based on city, state, or zip code names, making it a better choice for businesses that need to manage sales tax compliance.

Conclusion

In conclusion, the landscape of tax APIs is evolving, with numerous alternatives to the US Postal Tax API available in 2025. Each API discussed offers unique features and capabilities tailored to different business needs. For businesses focused on comprehensive tax calculations, the US Taxes by Zip Code API and the Sales Tax by Zip Code US API stand out for their real-time updates and flexibility. For those needing geographic data, the Postal Code Global API and the Search Canadian Postal Code API provide valuable resources. Ultimately, the best choice will depend on your specific requirements, whether they be tax compliance, geographic data, or a combination of both.