Official MOU Partner National Enterprise Cloud & e-Tax Alliance: YoelRobotics × INET × etaxOne (OEB) — 100% Certified by The Revenue Department View Accreditation
Revenue Dept Certified MOU: INET & etaxOne (OEB) PKI & TSA Certified

Complete e-Tax Invoice & e-Receipt Suite
For Every Business Scale in Thailand

Fully certified by the Electronic Transactions Development Agency (ETDA) and The Revenue Department. No ERP yet? Adopt Yoel Core ERP turnkey. Or already using an ERP? Connect via our high-speed API Gateway. Even individuals and freelancers can issue certified e-Receipts effortlessly via Web Portal.

No ERP: Built-in Yoel ERP Invoicing
Existing ERP: Instant API Gateway Integration
Individuals: Fast Web Portal Document Issuance
Auto Filing: 10-Year Secure INET Cloud Archive
PDF/A-3 + XML Standard PKI Digital Signature INET Tier 3/4 Data Center
Enterprise e-Tax Invoice & e-Receipt Solutions YoelRobotics INET etaxOne
Revenue Dept Certified Direct Service Provider (OEB)
Save >85% Invoicing Cost Zero Paper & Postage
Official MOU & Strategic Accreditation

National Technological Partnerships and Regulatory Compliance

Ensuring 100% legal enforceability through the unified collaboration of YoelRobotics, INET, etaxOne (OEB), regulated by The Revenue Department of Thailand.

The Revenue Department of Thailand
Thai Legal Standard

The Revenue Department

Strict compliance with the Electronic Transactions Act B.E. 2544, Revenue Department rules, and ETDA standards.

INET Internet Thailand Public Company Limited
MOU Partner: National Cloud

INET (Internet Thailand PCL)

Thailand's premier ICT and Tier 3/4 Cloud Data Center provider, offering unmatched ISO 27001 enterprise data security.

etaxOne.th e-Tax Platform
Premier e-Tax Platform

etaxOne.th

Market-leading e-Tax Invoice & e-Receipt issuing platform delivering high-speed document processing and real-time tracking.

One Electronic Billing Public Company Limited (OEB)
Licensed Service Provider

OEB (One Electronic Billing PCL)

Officially licensed Electronic Document Service Provider accredited by the Thai Revenue Department (an INET subsidiary).

Strategic Enterprise Alliance

Strategic MOU Guarantees Uncompromised Security

Our direct partnership with INET and OEB ensures seamless automated tax filings directly into Revenue Department systems, certified cryptographic validation, and 10-year tamper-proof cloud archival.

Flexible Deployment for Everyone

Choose the Deployment Model Tailored to Your Architecture

Whether you are starting without an ERP, running legacy enterprise software, or operating as an individual/freelancer, YoelRobotics delivers zero-friction e-Tax integration.

ALL-IN-ONE SOLUTION
No ERP System in Place

Yoel Core ERP Suite

Comprehensive, 100% one-time purchase enterprise ERP with zero recurring subscription fees. Features native e-Tax Invoice & e-Receipt generation right out of the box.

Complete Sales, Inventory, Purchasing, and Accounting
One-click e-Tax Invoice creation with automated Email/SMS
Automatic PKI Digital Signature and RFC 3161 TSA Time-stamping
Direct automated monthly filings to the Revenue Dept via OEB
Full source code ownership with zero annual seat licenses
ENTERPRISE API GATEWAY
Already Have an ERP System

Connect via API Gateway

No need to replace your existing ERP! Seamlessly integrate with SAP, Oracle, Express, Microsoft Dynamics, or In-house software via our high-speed RESTful API Gateway.

Zero workflow disruption: simply push JSON or XML payloads
Automated conversion to PDF/A-3 with embedded TEDA XML
Cloud HSM cryptographic engine signing tens of thousands/hour
Webhook callbacks delivering real-time status and delivery logs
Comprehensive sandbox environment with 24/7 developer support
INDIVIDUAL & FREELANCER
Individuals & Small Vendors

Issue via Web Portal

Ultra-fast and straightforward. No software installation or coding required. Log in via browser or mobile to generate legally certified electronic receipts (e-Receipts) immediately.

Perfect for freelancers, consultants, brokers, and solo traders
Legally compliant e-Receipts complying with Thai tax regulations
Bulk batch import via Excel/CSV for rapid high-volume billing
Instant download links sent directly via Email and SMS
Secure cloud storage with 24/7 audit retrieval access
High-Performance Invoicing Architecture

Seamless, Secure Invoicing Workflow Completed in 3 Seconds

From document creation and ETDA schema validation to PKI cryptographic signing, time-stamping, and automated filing with the Revenue Department on INET's sovereign cloud.

e-Tax Invoicing Platform and API Gateway Architecture YoelRobotics
01

Generate Invoice

Issued natively via Yoel ERP, transmitted via API Gateway from your legacy ERP, or created via Web Portal.

Input Source
02

ETDA Validation

Payload transformed into standardized PDF/A-3 with embedded XML strictly conforming to Thai ETDA regulations.

Schema Validation
03

PKI Digital Signing

Cryptographic digital signature applied via Cloud HSM with an official RFC 3161 Time-Stamp Authority (TSA).

PKI & TSA Signing
04

Client Delivery

Automated real-time dispatch of PDF/A-3 and XML attachments to customers via email and SMS in under 3 seconds.

Multi-Channel Delivery
05

Revenue Filing & Cloud

OEB transmits monthly tax batches directly to the Revenue Department and backs up records on INET Cloud for 10 years.

Revenue Sync & Cloud
High ROI & Operational Efficiency

Cost Comparison: Traditional Paper vs. Yoel e-Tax Solution

Transition from wasteful, slow paper invoicing to a 100% automated digital architecture that cuts total billing overhead by over 85%.

Evaluation Metric Traditional Paper Invoicing Yoel e-Tax Solution (Digital)
Cost per Invoiced Document
15 - 25+ THB
(Paper + Cartridge + Envelope + Postal Stamps)
From fractions of THB to 2 THB
Immediate 85% - 90% Cost Reduction
Delivery Time to Customer
3 - 7 Business Days (Subject to postal delays, loss risks) Under 3 Seconds (Instant Email / SMS dispatch)
5-10 Year Legal Document Archival
Requires physical storage rooms, vulnerable to fire, flooding, degradation Archived on INET Cloud Tier 3/4 with sub-second retrieval
Revenue Department Monthly Filings
Manual data entry, printing reports, high error & penalty risks Automated batch transmission by licensed Service Provider OEB
Tamper Resistance & Authenticity
Easily forged rubber stamps and signatures, difficult to authenticate Cryptographic PKI signature & TSA verified forensically
Environmental Impact (ESG)
Generates paper waste and logistics carbon emissions 100% Zero-carbon paperless ESG compliant operation
Comprehensive Tax Portfolio

Full Support for Every Statutory Electronic Tax Document

Whether your entity is VAT-registered or operating under non-VAT thresholds, we supply certified solutions adhering strictly to Thai tax law.

For VAT-Registered Enterprises

e-Tax Invoice & e-Receipt (PKI)

Electronic tax invoices and receipts with PKI digital signature stamping. Emits PDF/A-3 and TEDA XML directly to the Revenue Department via accredited Service Provider OEB.

  • Full Tax Invoices (e-Tax Invoice)
  • Electronic Receipts (e-Receipt)
  • Credit Notes & Debit Notes
For SMEs < 30M THB Annual Revenue

e-Tax Invoice by Email

Streamlined pathway for small VAT-registered businesses issuing PDF invoices through Revenue Department email routing with official ETDA time-stamps.

  • Ideal for early-stage VAT-registered SMEs
  • ETDA certified time-stamp applied via email gateway
  • Synchronous automated dispatch to buyers
Individuals & Withholding Tax

e-Withholding Tax & e-Receipt

Enabling legally compliant e-Receipts for individual professionals/non-VAT vendors alongside automated electronic 50-Tawi withholding tax certificates.

  • Legal e-Receipts for individual consultants & freelancers
  • Digital 50-Tawi Withholding Tax Certificates
  • Eligible for governmental Easy E-Receipt initiatives
Transparent & Predictable Pricing

Cost-Effective Plans for Every Operational Scale

Zero hidden annual maintenance fees. Simple pay-as-you-go tiers scaled precisely to your transaction volumes.

Individuals & Solo Traders

Starter Web Portal

For freelancers, solo entrepreneurs, and micro-vendors

฿0.90 / document

Starting package just 450 THB (500 documents)

  • Accessible via Web & Mobile browsers
  • Certified legal e-Receipt issuance
  • Bulk Excel & CSV batch import
  • Email & SMS document download links
  • 5-Year secure INET Cloud backup
  • Excludes API Gateway integration
MOST POPULAR FOR SMES
SMEs & VAT Registered

Yoel ERP + e-Tax

Turnkey ERP suite with native e-Tax Invoice integration

฿0.50 / document

Maximum savings bundled with Yoel Core ERP

  • Full Sales, Inventory, Accounting suite (One-Time buy)
  • Automated e-Tax Invoice & e-Receipt generation
  • PKI Digital Signature & RFC 3161 TSA stamping
  • Automated monthly Revenue Department filings
  • 10-Year tamper-proof INET Cloud storage
  • Full digital certificate application assistance
Enterprises with Existing ERP

Enterprise API Gateway

Connect SAP, Oracle, Express, In-house via RESTful API

Custom / Tier Volume Scaled

Volume tiering for high-frequency transactions

  • High-throughput RESTful API & Webhooks
  • Dedicated Cloud HSM cryptographic cluster
  • Engineered for hundreds of thousands of tx/day
  • 99.99% SLA backed by INET Tier 4 Cloud
  • Dedicated integration engineer assigned
  • Enterprise audit logs & full PDPA compliance
Questions & Answers

Frequently Asked Questions about e-Tax Invoicing

Key insights regarding migration, API connectivity, legal validity, and data security.

Ready for 100% Digital Tax Transformation

Elevate Your Business with Enterprise e-Tax Solutions
Fast, Compliant, Revenue Dept Certified

Whether you need a complete ERP suite, an API Gateway for your existing system, or a streamlined web portal for individual invoicing, our team is ready to onboard you today.

Operated by YoelRobotics Company Limited in strategic partnership with One Electronic Billing Public Company Limited (OEB) & Internet Thailand Public Company Limited (INET).