
Chunghwa Post Address Validation: How Does it Work and What Are Its Alternatives?
The history of Taiwan’s national postal system dates back to 1878, but it was officially structured in 2003. Today, it handles over 509,510 delivery locations with residential and business addresses. How do they ensure deliverability, considering the complex geopolitical scene in the region? What steps do businesses operating in Taiwan take to reduce misdeliveries, details, and return mail?
Chunghwa Post provides an address validation solution to fetch accurate postal codes for your addresses. It helps individuals and businesses estimate the route and postal charges before sending mail or packages. Can it handle bulk validation requests? How accurate does it need to be to ensure deliverability and location intelligence? This blog will be the perfect read to understand how Chunghwa Post address validation works, a better alternative, and the Taiwan address format.

Key Takeaways
- Chunghwa Post address validation only provides information about postal codes.
- Real-time validation reduces failed deliveries, delays, and lost mail.
- The ZIP Code quick search tool requires manually selecting a county to city to fetch postal codes.
- Mandarin Chinese is Taiwan’s official postal language.
- International Taiwanese mail uses the Hanyu Pinyin (Romanized Chinese) system to write addresses.
- Individuals and businesses can use Chunghwa Post’s post office locator tool to access postal services.
- Address format errors or invalid postal codes are the primary reasons behind delivery failures.
- It is vital to use the correct abbreviations while writing Taiwanese addresses.
- You cannot run bulk validation with Chunghwa Post address validation tools.
- Businesses need a third-party solution to validate addresses in real-time.
What is Chunghwa Post Address Validation?
Chunghwa Post Address Validation ensures that a Taiwanese address is an actual location and is formatted correctly. It uses Taiwan’s official address database as a reference point to validate your address and ensure that postal workers can deliver it. By properly validating their address databases, businesses can reduce the scope of human error. Accuracy is necessary to reduce failed deliveries, delays, and lost packages.
Chunghwa Post, Taiwan’s national postal service, provides a ZIP Code quick search tool to help you find the corresponding postal code for a street address. However, this system demands that you manually select the county or city to fetch a list of postal codes. With Chunghwa Post’s address validation solution, you cannot run automated workflows to save time and effort. It doesn’t provide any information for street addresses and standardized format. Users can only fetch the correct ZIP codes for their addresses and calculate the postal charges.
What is the United National Mandarin Phonetic System (Han Yu Pin Yin)?
Mandarin Chinese is the official language of Taiwan, and it has specialized characters. It is often challenging for global businesses to write Taiwanese addresses in Chinese. Zhou Youguang introduced Hanyu Pinyin as a Romanized phonetic system to translate Chinese characters into Roman alphabets. It is the national standard of pronunciation of Chinese characters used in postal addresses, street signs, book titles, name cards, newspapers, etc.
This innovative system uses 26 English letters to build the phonetic alphabet, but the pronunciation differs from standard English. If you are mailing something from your country to Taiwan, your post office will likely insist on using a Romanized address. This approach helps with record keeping and avoiding common mistakes while writing Chinese letters.
How Does Chunghwa Post Address Validation Work?
Chunghwa Post in Taiwan doesn’t provide comprehensive address validation to the public or businesses. You can’t expect to address validation tasks in real-time to save time and effort. However, they provide solutions to make finding addresses and post offices easier.
ZIP Code Quick Search
Taiwan uses a five-digit postal code system. The first three digits represent the city or district, and the last two provide more precise location details, such as a road or neighborhood. Finding the appropriate ZIP code for your postal address could be challenging.
Chunghwa Post provides a quick ZIP code search tool for appropriate postal codes. You need to select a county or city to fetch the list of postal codes. It will give the precise last three digits of the postal code for the respective county/city. To avoid linguistic confusion, you get regional information in Han Yu Pin Yin and Tongyong Pin Yin.
Post Office Locations
A business operating in Taiwan might need to know post office locations. Chunghwa Post provides a detailed map of these locations across its territory. You can click on a city or county to fetch post office information with the ZIP code, computerized no, office name, and address. It gives you complete clarity about the post office.
Self-Service Post Office Finder
Individuals or businesses might be looking for an automated postal kiosk to access essential postal services like stamp purchasing, sending mail or packages, or making bill payments. Chunghwa Post provides a self-service post office finder on its website. Use the drop-down menu to select a specific country or city to fetch a post office with its ZIP code, name, address, administration, and telephone number.
Postal Agency Finder
Chunghwa Post also maintains a list of third-party, non-traditional post offices. These agencies are necessary to support the national postal service coverage across the territory. You can use Chunghwa Post’s postal agency finder to fetch the agency’s name, ZIP code, address, and phone number. It also provides detailed information on their services and business hours.
Why Are You Unable to Deliver Packages to a Taiwanese Address?
Mistakes in the Address Format
Writing a Taiwanese address can be challenging, especially considering the language barrier. Even using the Hanyu Pinyin system can be challenging, as it is difficult to write the correct spelling. These common address mistakes can make it challenging for Chunghwa Post workers to deliver your mail or package to the intended recipient. Delays and return mail are common in such situations.
Invalid or Missing Postal Code
Taiwan’s five-digit postal code system might be complex for some individuals and businesses. The first three digits represent the city or district, while the last two describe the specific road or neighborhood. It leaves us with two entry points for possible mistakes. Chunghwa Post can only deliver your mail when you get the postal code right.
The Recipient Was Absent at the Delivery Location
It is one of the most unfortunate reasons behind failed deliveries. You might have the correct address, but the recipient might be absent from their address. The National Postal Service usually makes multiple attempts to complete the delivery. However, you might also have outdated address information, and the recipient has moved to another location. It is essential to update your customer address database periodically.
Language Problems
Taiwan uses Mandarin Chinese as the official language to write addresses for domestic mail. Even with the Hanyu Pinyin system, correctly spelling the territory’s addresses becomes more challenging. Language barriers can make an address unreadable by automated systems or postal workers, leading to failed deliveries.
Unrecognized Address
Chunghwa Post might have recognition issues when processing addresses written in Pinyin (Romanized Chinese). To help postal workers, some rural addresses require additional consideration when writing.
Addressing Tips for Sending Envelopes and Packages to Taiwan
- Abbreviations: Chunghwa Post uses multiple abbreviations for different address-related terminologies. For example, 郵政信箱 for Post Office Box, “No.” stands for Number, and “Sec.” stands for Section.
- Alignment: All Taiwanese addresses are left-aligned for ease of reading and postal processing.
- Language: Mandarin Chinese is Taiwan’s official language and is typically used in all domestic mail. English (Hanyu Pinyin) is acceptable for international mail.
- Postal Codes: Taiwan uses a five-digit postal code system. To ensure accurate delivery, you must include the correct postal code.
- Capitalization: Always write the Taiwanese postal address in block letters for international mail for better clarity.
Chunghwa Post Address Format
A typical Taiwanese postal address comprises four lines. You begin by writing the recipient’s full name in the first line. The second line is there to have a proper street name and house/building number of a residential or business address. Next, mention the district or city along with the appropriate postal code for the address.
Taipei, Taichung, Tainan, and Kaohsiung are significant cities in Taiwan. The last line requires you to write TWN (short for Taiwan) for international mail. You must use Hanyu Pinyin to write all the particulars for a Taiwanese address.
Here is what the format should look like:
Recipient Name
Building Number and Street City, District, and Postal Code Country Name |
Your sample address would look like this:
TSMC
No. 8, Li-Hsin Road 6 Hsinchu Science Park, Hsinchu City Taiwan 300 |
Chunghwa Post Address Validation Limitations
No Real-Time Address Validation
Chunghwa post address validation only provides information about postal codes and post office locations. You cannot run real-time address validation against a credible database to check the deliverability of your addresses. With this approach, businesses cannot expect to improve their workflows for the highest accuracy. They might need to consider third-party solutions like PostGrid to validate real-time addresses.
Lack of Address Standardization
Individuals or businesses might have the correct address at hand but make mistakes in formatting them according to the official standards. Sadly, you won’t find any standardization tool to fix inconsistencies or formatting errors in your Taiwanese postal addresses. Chunghwa Post address validation might leave big formatting mistakes unattended. Even a minute sequence change can render a postal address useless. Users must provide their complete address in the correct order to the postal service to ensure accurate delivery.
No Bulk Validation for Business Applications
The lack of comprehensive address validation also means no support for bulk validation. Businesses handling hundreds of clients and customers cannot validate addresses in batches using Chunghwa Post address validation tools. There are no integration options or bulk validation support to help you save time and effort while validating hundreds or thousands of Taiwanese addresses.
Absence of Geocoding Data
Businesses and marketers require geographical data (longitude and latitude) for practical location intelligence. Sadly, you don’t get geocoding features with Chunghwa post-address validation tools. Without this data, you cannot precisely locate addresses on a map. Logistics companies often need this information to optimize their delivery fleets and routes to save costs and time. It also helps businesses combat fraud and support smoother onboarding in their KYC drives.
No Secondary Address Data
A postal address itself is insufficient to locate the exact delivery point. With so many high-rise buildings in Taiwan, postal workers often struggle to find the intended recipient among dozens of floors and units. Chunghwa Post address validation tools fail to provide premise-level data to enrich your addresses and improve deliverability. You need secondary indicators like “floor,” “unit,” “building,” and “suite” to make every delivery a success.
Chunghwa Post Address Validation Alternative
As you saw, Chunghwa Post doesn’t provide a comprehensive address validation tool to help businesses verify, validate, standardize, autocomplete, and parse Taiwanese addresses. It becomes highly problematic when you consider high-volume addresses in their database. They can only fetch postal codes by using Chunghwa Post’s solutions. It doesn’t give them any clarity about the spelling, format, or street addresses. A call for a better real-time alternative to improve deliverability and customer satisfaction is evident.
PostGrid’s Address Validation API is a comprehensive solution to these issues with broader international coverage and native integrations. Businesses with high-volume address data can validate, standardize, and clean up to 200K addresses in a single run. Everything happens in real-time by validating against official, credible databases for the highest accuracy. It also has an address auto-complete feature to provide up to 100 suggestions as users start typing in an input field. The API offers native integrations for websites, mobile apps, CRMs, ERPs, marketing automation software, etc. You don’t need to worry about slow and clunky workflows anymore.
Criteria |
Chunghwa Post |
PostGrid |
Use Case | Users can only use it to find postal codes for their complete street address. Businesses can’t validate addresses to ensure deliverability. | Our address validation solution is ideal for ensuring mail deliverability, running marketing campaigns, and gathering location intelligence. |
Real-Time Validation | No real-time validation is available with Chunghwa Post’s address validation solution. | PostGrid’s solution works in real-time by validating addresses against official databases worldwide. |
Address Standardization | You cannot standardize postal addresses to remove inconsistencies with Chunghwa Post address validation. | Our solution helps you standardize Taiwanese addresses according to the officially accepted format. |
Geocoding Data | You don’t get geographical coordinates for location intelligence when using Chunghwa Post address validation. | We fetch precise longitude and latitude data to help you pinpoint locations on a map for enhanced validation. |
Address Auto-Complete | Chunghwa’s tool has no auto-complete suggestions to save time and effort. | PostGrid gives you up to 100 suggestions per input with validated addresses. |
Coverage | You can only fetch Taiwanese postal codes with the solution. | Our solution works with addresses in over 245 countries and territories. |
Bulk Validation | The limited features of Chunghwa Post’s address validation solution make it impossible to validate high-volume addresses. | Businesses can quickly scale PostGrid and validate up to 250,000 addresses simultaneously in a single run. |
Integrations | There are no integration options to optimize your workflows. | We provide native integration to help you create custom validation workflows. |
Sign up now to validate, standardize, and cleanse your Taiwanese addresses.