📄 Thai Tax Deduction Certificate OCR 🆕
📄 ใบรับรองการหักภาษี ณ ที่จ่ายของไทย / ใบรับรอง ภงด. ทวิ 50
Welcome to the Thai Tax Deduction Certificate OCR API, an AI-powered solution developed by iApp Technology Co., Ltd. for extracting data from Thai tax deduction certificates. This documentation will help you integrate and use our OCR service effectively.
Try Demo!
Example Images (Click to try)

Demo key is limited to 10 requests per day per IP
Click here to get your API key
Getting Started
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Prerequisites
- An API key from iApp Technology
- Thai tax deduction certificate images
- Supported file formats: JPEG, JPG, PNG, HEIC, HEIF, PDF
- Maximum file size: 10MB
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Quick Start
- Fast processing (5-10 seconds per document)
- High accuracy text extraction
- Support for multiple file formats
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Key Features
- Detailed field extraction including:
- Certificate details (ID, date)
- Payer information (name, address, tax ID)
- Payee information (name, address, tax ID)
- Income details (type, amount, tax withheld)
- Financial summary (total income, total tax withheld)
- Support for both single-page and multi-page documents (PDF)
- Option to return original OCR text and processed images
- Flexible JSON response format with detailed field extraction
- Detailed field extraction including:
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Security & Compliance
- GDPR and PDPA compliant
- Secure API endpoints
- No data retention after processing
Our API is designed to handle various tax deduction certificate formats and layouts commonly used in Thailand. The post-processing AI model is trained to understand Thai tax document structures and can reliably extract information even from noisy or poorly scanned documents.
Example
Here's a sample Thai tax deduction certificate and its extracted data:

Request:
cURL
curl -X POST https://api.iapp.co.th/ocr/v3/tax-deduction-certificate-prd/file \
-H apikey: YOUR_API_KEY \
-F file=@/path/to/certificate.jpg \
-F return_image=false \
-F return_ocr=false
Please visit API Portal to view your existing API key or request a new one.
Response:
{
"message": "success",
"raw": {},
"processed": {
"documentType": "