Thailand Software Stack (2026)
The definitive software stack for Thai SMEs and ecommerce, covering LINE OA CRM, PromptPay integration, and e-Tax compliance.
For a Thai SME in 2026, the essential stack centers around **LINE OA**. Use **Kaojao** or **Zort** for social commerce and inventory management. For payments, a gateway like **Opn** (formerly Omise) or **Xendit** (which acquired Thai gateway GB Prime Pay) is required for seamless PromptPay QR checkout. Finally, connect your sales to **FlowAccount** or **Peak Account** for automated e-Tax invoice generation.
The Tools in Detail
Zort
E-commerce Operations · From THB 600/month · Thailand, SEA · TH / EN
Zort (ZORT) is a Bangkok-founded stock and order management system used by Thai online sellers to run online and offline stores from one dashboard. It connects to Shopee, Lazada, TikTok Shop, and LINE, syncs stock in real time, and integrates with Thai logistics providers including Kerry Express, Flash Express, J&T Express, Ninja Van, and Thailand Post, with pricing billed in Thai Baht.
Zort is built around the exact stack a Thai online seller uses day to day: Shopee, Lazada, TikTok Shop, and LINE for social commerce, plus direct label printing with Thailand's dominant couriers (Kerry Express, Flash Express, J&T Express, Ninja Van, Thailand Post). Pricing and invoicing are in Thai Baht and the interface is available in Thai, a depth of local integration that generic SEA-wide inventory tools do not match.
Best for: Thai online sellers running Shopee, Lazada, and TikTok Shop simultaneously; Social commerce sellers taking orders through LINE and needing centralized fulfillment; Thai SMEs replacing manual courier booking with direct Kerry/Flash/J&T label printing; Growing Thai retailers needing multi-branch and multi-warehouse stock visibility
Kaojao
E-commerce · From THB 1390/month · Thailand · TH
Kaojao is a Thai social-commerce assistant that automates the chat side of selling on Facebook, Instagram, and LINE Official Account: auto-replying to comments and inbox messages, pulling comments into the inbox so orders are not lost in threads, broadcasting to past customers, and printing delivery slips. Its Kaojao Live module handles CF live-selling — capturing comment orders from a Facebook Live, deducting stock automatically, and opening bills with payment-status tracking. A Sale Page builder ships landing pages with Facebook Pixel, TikTok Pixel, Google Tag Manager, and Google Analytics attached, and the platform can pull bank-transfer slips automatically for payment checking. The vendor states its bots reach more than 5,000,000 Facebook, Instagram, and LINE users per month.
Kaojao is built for the way Thai social sellers actually operate: closing sales inside Facebook comments and LINE chats rather than on a storefront, running CF live sales, and verifying payment from bank-transfer slips. Comment-to-inbox capture, automatic slip retrieval, and LINE OA selling are core features rather than integrations, and pricing is published in Thai Baht.
Best for: Thai Facebook and Instagram page sellers closing orders in comments and chat; CF live-selling merchants who need comment orders captured and stock deducted during a Facebook Live; Sellers running Facebook, Instagram, and LINE OA from one inbox without hiring more admins
FlowAccount
Finance · From THB 165/month · Free tier · Thailand · TH / EN
FlowAccount is a Bangkok-headquartered cloud accounting platform designed specifically for Thai SMEs and freelancers. It simplifies invoicing, expense tracking, and payroll while ensuring compliance with Thai tax regulations (VAT, Withholding Tax) and integration with local Thai banks.
FlowAccount is the leading cloud accounting tool in Thailand, offering first-class support for Thai language and local tax laws. It is a preferred choice for Thai entrepreneurs due to its ease of use and affordability compared to global alternatives like Xero, which lack deep Thai localization.
Best for: Thai SMEs needing localized accounting and tax compliance; Freelancers in Thailand managing multiple clients and invoices; E-commerce sellers on Lazada and Shopee in Thailand; Accounting firms serving Thai SME clients
PEAK Account
Finance · From THB 208/month · Free tier · Thailand · TH / EN
PEAK is a Thailand-headquartered cloud accounting platform used by over 30,000 Thai companies and 1,800 accounting firms. It generates Thai tax invoices, e-Tax Invoice and e-Receipt documents, PP.30 VAT filings, and PND withholding tax data natively, and connects with Thai bank statements, Shopee, Lazada, and LINE Shopping for automated reconciliation.
PEAK is built in Thailand for Thai regulatory requirements, natively producing PP.30 and PND filings in the format required by Thailand's Revenue Department and generating e-Tax Invoices under the ETDA standard. It manages roughly 8 million documents and THB 80 billion in monthly transaction value for over 30,000 Thai companies.
Best for: Thai SMEs needing native e-Tax Invoice and PP.30/PND compliance; Thai e-commerce sellers on Shopee, Lazada, and LINE Shopping; Accounting firms managing multiple Thai SME clients; Service businesses needing project-based profit and loss tracking in Thai Baht
Opn Payments
Payments · Paid · Free tier · SEA, Thailand, Singapore, Malaysia, Japan · EN / TH / JA
Opn Payments (formerly Omise) is a Thai-founded payment gateway with a developer-friendly REST API covering credit cards, PromptPay, QR payments, internet banking, e-wallets, and BNPL across Thailand, Japan, Singapore, and Malaysia. Founded in 2013 in Bangkok, it serves merchants from solo founders to enterprise brands like ICBC, True Corporation, and Pomelo Fashion. The clean API documentation and SDKs in multiple languages make it a top choice for SEA developers who need a payment layer without the procurement friction of larger global PSPs.
Opn Payments is the default payment gateway recommendation for Thai-focused SaaS and e-commerce products because it was built by a team that understands PromptPay, local banking rails, and the Thai merchant mindset from day one. Most Thai developers have used Omise at some point in their careers. The 1.65% PromptPay rate is competitive with 2C2P and lower than Stripe's Thai pricing. The developer documentation is genuinely good — webhook handling, idempotency keys, and error messages are clearly explained, which is not always true of regional PSPs. The main limitation is that support for deep Indonesian or Philippine payment methods (GoPay, GCash, OVO) is thinner than Xendit. Opn publishes a separate rate card per country, and the same pattern holds in all three SEA markets it prices: Thailand cards 3.65% against PromptPay 1.65%; Malaysia domestic cards 2.50% (international 3.80%) against DuitNow 1.50%; Singapore cards 3.30% + SGD 0.30 against PayNow 1.00% + SGD 0.15. In every market the national QR rail is the cheapest percentage method on the page (read 2026-09-14).
Best for: Thai e-commerce founders and SaaS companies building their first payment integration without enterprise contracts; Singapore and Malaysia startups needing a trusted SEA-native PSP with multi-country support; Marketplace and platform builders needing split-payment and sub-account capabilities across SEA; International brands entering the Thai market who need PromptPay and TrueMoney alongside international cards
Xendit
Payments · Paid · Free tier · ID, PH, MY, TH, VN, SG, HK · EN / ID
Xendit is a payments platform operating in Indonesia, the Philippines, Malaysia, Thailand, Vietnam, Singapore and Hong Kong, offering 100+ payment methods: cards, e-wallets (OVO, GoPay, GCash, Maya, ShopeePay), QRIS, QR PH, virtual accounts and more. Pricing is per transaction (a processing fee plus a payment-method or payout fee) with free sign-up; it is licensed by the Bank of Thailand, and Xendit Philippines Inc and XenRemit, Inc are regulated by the Bangko Sentral ng Pilipinas.
Xendit publishes one rate card covering Indonesia, the Philippines, Malaysia, Thailand, Vietnam, Singapore and Hong Kong, so a team expanding from Indonesia into the Philippines keeps one provider for QRIS, QR PH and the regional e-wallets. It is licensed by the Bank of Thailand, and its Philippine entities are regulated by the Bangko Sentral ng Pilipinas. Sign-up is free; every fee is per transaction.
Best for: Indonesian e-commerce and SaaS; Philippines digital businesses; SEA-wide marketplaces; Subscription startups across the region
SEA Operational Reasoning
Thailand is a mobile-first, social commerce-driven market where LINE is the primary operating system for business-to-consumer interaction. A standard Western CRM is ineffective; businesses need a LINE-native CRM or chat management tool like Kaojao or Zort to close sales directly in chat. Secondly, credit card penetration is low compared to the explosive adoption of PromptPay. Integrating a local payment gateway ensures you capture the majority of buyers. Lastly, the Thai Revenue Department's push for e-Tax invoices means manual accounting is obsolete—local platforms like FlowAccount and Peak are pre-certified to handle this natively.
Related Expert Guides
The questions operators actually ask.
Do I need a special CRM for Thailand?
Yes. Because Thai consumers prefer to chat before buying, a CRM must integrate deeply with LINE Official Account (LINE OA) and Facebook Messenger. Standard email-first CRMs like HubSpot require heavy customization to work well here.
What is the best way to accept PromptPay online?
While you can manually verify bank slips (slip checking), automating this via a payment gateway like Opn or Xendit reduces fraud and manual labor significantly.
Can I use Xero or QuickBooks in Thailand?
You can, but they do not natively support the Thai Revenue Department's e-Tax formats or local withholding tax complexities out-of-the-box. Local solutions like FlowAccount or Peak are much easier for Thai accountants to manage.