What is a B2B ecosystem?
Business apps that belong to one platform and share the account and the data, instead of being wired together through paid integrations.
Thailand · Revenue Department · VAT 7 % · THB
From DBD registration to monthly returns to ASEAN expansion: what a Thai company has to do at each stage.
A Thai business answers to several agencies at once: it registers with the Department of Business Development, files VAT (PP.30) and withholding-tax returns with the Revenue Department every month, pays Social Security Fund contributions and handles personal data under the PDPA. The 4b2b ecosystem offers general tools alongside (PDF invoices and archive, a financial ERP, HR records, CRM, SMS and e-mail, hosting), but it does not connect to the Revenue Department, the DBD or the Social Security Office.
Explore the topic map →Illustrative overview (not measured data)4B2B · LEDGER VIEW
6
Modules
3
Clusters
1
Markets
InvoicingAccountingPayrollOther
Illustrative trend (not measured data)
Currency
THB
VAT
7 %
Trade bloc
ASEAN · RCEP
Registry
DBD
Start with the services you can use today
Subscribe online to the first applications of the 4b2b ecosystem, then add more modules to the same account whenever you need them.
Price monitoring
Track your competitors' prices for your products, with alerts and price recommendations.
from €2 /month
Notifications
Send SMS, e-mail and WhatsApp notifications to your customers from one place.
from €49 /month
What makes Thailand different
VAT, withholding tax and Social Security — reconciled every single month.
In Thailand most deadlines are monthly, not quarterly: VAT, withholding tax and Social Security contributions have to agree with each other every cycle. The 4b2b products do not connect to these agencies; this section explains the rules so you know what to do at the source.
DBDDepartment of Business DevelopmentA private limited company is registered with the DBD, at a registration office or through DBD e-Registration. Its 13-digit juristic person number doubles as the tax ID, and audited financial statements are filed with the DBD every year.
VAT-7VAT 7 % and PP.30Businesses with annual turnover above THB 1.8 million must register for VAT. The rate currently applied is 7 %, and a PP.30 return is due every month. A full tax invoice must carry the particulars required by the Revenue Code.
WHTWithholding taxWhen paying for services, rent or salaries, the payer withholds tax and remits it on PND.1, PND.3 or PND.53, issuing a withholding certificate (50 Tawi) to the recipient.
THB-PPTHB · PromptPayPromptPay and Thai QR Payment are the everyday receiving rails for Thai businesses. Matching transfers to open invoices quickly keeps receivables and cash flow clear.
01 · SET UP
Setting Up a Company in Thailand
Setting up in Thailand does not end with the DBD certificate. From day one the company keeps books, issues tax documents and prepares monthly returns. These four topics walk through each step and where the 4b2b ecosystem fits.
6 · Open →
02 · OPERATE
Operations in Thailand — VAT 7 %, Withholding Tax, Social Security
Most tax work in Thailand runs on a monthly cycle. Sales documents, supplier payments and payroll all feed the returns that must be filed. These four topics show how to keep the numbers consistent.
6 · Open →
03 · CROSS-BORDER
Cross-Border Business from Thailand — ASEAN, Exports, Overseas Clients
Thailand is a manufacturing and trading hub of ASEAN. Once a business starts selling abroad, tax rates, currencies and data transfers all get more complex. These four topics cover the essentials.
5 · Open →
How the 4b2b modules fit together for a company in Thailand
Each product is subscribed and managed on its own brand domain — billing, support and licensing all live there. This view shows the general tools available to a business registered in Thailand, with no connection to the Revenue Department, the DBD or the Social Security Office.
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Built on open standards
REST API, webhooks, PDF invoices, e-mail and SMS. The XML, UBL and ISO 20022 standards are listed for information only: the ecosystem has no connection to the Revenue Department, the DBD or the Social Security Office.
Local standards (informational)
e-Tax Invoice & e-ReceiptUBL 2.1ISO 20022
Integrations
REST APIWebhooksPDF invoicesE-mail and SMS
Infrastructure
Hosting in EU data centres
Built for accounting firms, legal advisers and IT companies
Accounting firms and advisers in Thailand look after many clients at once, across the DBD, the Revenue Department and the Social Security Office. The ecosystem includes a multi-company financial ERP; filings themselves are made directly with the agencies.
Accounting firms
Keep client books in a multi-company financial ERP and PDF invoices in an archive. Monthly returns are prepared and filed outside the system.
Law firms
Issue professional-fee invoices as PDF and keep client contacts in a CRM. Choosing the correct VAT treatment is your responsibility.
Company-registration advisers
Keep client contacts in a CRM and record the juristic number, address and directors in your own documents. Nothing is pulled from the DBD or filled in automatically.
IT companies
Issue PDF invoices to overseas clients and keep client records in a CRM. Currency conversion follows your accountant’s method.
The 4b2b ecosystem
Why an ecosystem instead of separate apps
The 4b2b ecosystem is a group of business apps that share one account, one company record and one customer record. You switch on only the modules you need, and anything entered once shows up everywhere else — from invoicing through contracts to timesheets.
- One login for every module, with permissions set per role.
- Company and customer details are entered once, not six times.
- One subscription, with modules you turn on as you go.
- Local tax compliance included on every market we open.
Questions about the ecosystem
Short answers to what small companies ask most often before choosing. Each one has its own page, with worked examples and the mistakes to avoid.
What is the 4b2b ecosystem?
Invoicing, accounting, CRM, ERP, HR, projects, contracts and notifications under one account, with local compliance on each market.
How does an ecosystem cut software costs?
It removes parallel subscriptions and paid connectors: replacing six separate apps typically takes 40–60 % off the monthly bill.
What does Single Sign-On mean for a company?
One person signs in once and reaches every module; when they leave, access is revoked from a single place.
How is tax compliance handled across 70 countries?
Every market has its own e-invoicing format and channel, and the ecosystem applies them from the market you selected.
Partner programme — Thailand
Accountants, advisers and IT partners who refer the ecosystem earn a recurring commission on every client that stays active — not a one-off referral fee.
Accounting firms
20–30 %
Recurring commission on every client company you refer and retain.
Business advisers
10–20 %
Earned on clients who arrive through company registration or BOI application work.
IT partners
20–30 %
Tiered upward as you deploy more modules for a single client project.
