Accounting & Tax Services
Professional Accounting. One Cloud Platform. Local Compliance.
ATA combines professional accounting and tax services with the ATA Platform, our own cloud-based system, allowing clients to manage invoicing, financial information and accounting workflows in one connected environment.
The ATA Platform
One Accounting Platform. From Your First Invoice to Financial Management.
In many companies, customer invoices are created in one system while the accountant works in a different accounting system.
With ATA, clients can create and send their own quotations and invoices directly from the ATA Platform instead of using a separate invoicing application. The same information can then flow into bookkeeping, financial reporting and compliance processes.
This reduces duplicated data entry, fragmented systems and unnecessary document exchanges while giving both the client and ATA access to the same operational information.
Client / Supplier → Quotation → Invoice → Payment → Bookkeeping → Financial Management → Country Compliance
Instead of maintaining separate invoicing and accounting systems, ATA clients can manage key financial processes through one connected platform supported by our professional accounting teams.
One Database. One Invoice System. One Accounting Environment.
With ATA, your accountant does not wait until the end of the month to receive exported invoices from another system — your invoicing and accounting environment can already be connected from the start.
Technology + People
More Than Accounting Software
The ATA Platform does not replace your accountant. It connects our clients with the accounting professionals managing their books, filings and reporting. Clients can manage their commercial activities while ATA manages the accounting and compliance processes behind them — all within the same ecosystem. The platform is used by both the client and ATA accounting team, allowing both sides to work from the same underlying information.
Less Duplicate Entry
Information does not need to be recreated across multiple systems.
Better Visibility
Clients can access their own accounting information online.
Fewer Manual Exchanges
Reduce unnecessary spreadsheets, emails and document transfers.
One Connected Workflow
Operational information flows into bookkeeping and financial reporting.
Professional Support
The technology is backed by ATA accounting and tax professionals.
Select Your Market
Local Accounting and Tax Requirements, by Country
Accounting and tax requirements vary by country. Select your market to view the applicable local accounting, tax and compliance requirements.
Which country do you need accounting support in?
Corporate Income Tax
Standard rate of 20% on net profit; qualifying SMEs may access progressive rates as low as 15% on the first portion of profit.
VAT
Currently 7% (reduced from the statutory 10% rate), filed monthly (PP.30) by the 15th of the following month.
Withholding Tax
Rates typically range from 1% to 15% depending on payment type — e.g. 3% on services, 5% on rent, 10% on dividends.
Filing Frequency
Monthly VAT and withholding filings, a half-year tax estimate (PND.51), and an annual return (PND.50) within 150 days of fiscal year-end.
Financial Year
Companies may select a 12-month fiscal year; the first accounting period may run up to 12 months from incorporation.
Statutory Financial Statements
Prepared under Thai Financial Reporting Standards (TFRS) and filed annually with the Department of Business Development (DBD).
Audit Coordination
Statutory audit is required annually for every registered company, with no small-company exemption; ATA coordinates with your CPA-licensed auditor.
Payroll / Accounting Interaction
Monthly PND.1 payroll withholding plus Social Security Fund contributions (5% employer / 5% employee, subject to a salary cap).
Have Questions About Accounting in Your Market?
The information shown is indicative and may change. Local accounting, tax and filing requirements will be confirmed by ATA based on the applicable regulations in your market. Last updated: September 2026 — reviewed periodically by our local teams.
Why Choose ATA Accounting
Why Businesses Choose ATA for Accounting
Integrated ATA Platform
Accounting and technology in one environment.
Professional Local Accountants
Accounting professionals familiar with local requirements.
Secure Cloud Access
Access your financial environment online through your own credentials.
Multi-Country Coordination
More consistent processes across several ATA markets.
End-to-End Accounting Support
From invoicing and bookkeeping through tax, reporting and year-end support.
One Partner for Business Operations
Accounting connected with Payroll, EOR / PEO, Legal, Corporate Services and other ATA solutions.
Service Scope
Complete Accounting & Tax Support
Ongoing Accounting
- Bookkeeping
- General ledger maintenance
- Accounts receivable
- Accounts payable
- Bank reconciliation
- Document management
- Monthly accounting close
Tax & Compliance
- VAT / GST / SST filings where applicable
- Withholding tax
- Corporate tax support
- Statutory tax filings
- Local accounting compliance
Financial Reporting
- Profit & loss
- Balance sheet
- General ledger
- Management reporting
- Financial statements
- Analytical reporting where applicable
Year-End Support
Preparation of annual financial statements and coordination with the independent auditor where statutory audit is required.
- Annual closing
- Financial statement preparation
- Tax computation
- Year-end compliance
- Coordination of the statutory audit with your independent auditor, where required
From Bookkeeping to Financial Leadership
ATA can support the complete financial journey — from daily accounting and tax compliance through financial reporting, audit coordination and CFO-level advisory: Accounting & Tax → Audit → CFO Advisory.
Useful Accounting & Tax Tools
Personal Income Tax Calculator — estimate indicative personal income tax across ATA's key markets.
Getting Started
How ATA Accounting Works
Select Your Market
Tell us where your company operates.
Configure Your Accounting Environment
We set up your company settings, chart of accounts, tax configuration and access rights.
Use the ATA Platform
Manage customers, suppliers, quotations and invoices from one environment.
ATA Manages Your Accounting
Our accountants handle bookkeeping, reconciliations, tax filings and reporting.
Review Your Financial Information
Access reports and financial information from the same connected environment.
Select Your Market
Tell us where your company operates.
Configure Your Accounting Environment
We set up your company settings, chart of accounts, tax configuration and access rights.
Use the ATA Platform
Manage customers, suppliers, quotations and invoices from one environment.
ATA Manages Your Accounting
Our accountants handle bookkeeping, reconciliations, tax filings and reporting.
Review Your Financial Information
Access reports and financial information from the same connected environment.
Our Direct Markets
Local teams. Global reach.
With local entities and experts in key Asian markets, ATA makes it easy to manage your accounting and tax matters — anywhere in the region and beyond.
Full-service accounting, bookkeeping and tax filing from our Bangkok team.
Local accounting and statutory compliance support for your Vietnam operations.
Bookkeeping and tax compliance tailored to Malaysia's regulatory requirements.
Accounting and tax support to help you navigate Indonesia's requirements.
Accounting and tax services from a strategic regional hub.
Accounting and tax support for cross-border and holding structures.
Need Accounting Support in Another Country?
ATA provides accounting support directly across our key Asian markets and can coordinate additional requirements through trusted international partners.
Explore Global Accounting Support
More Than Accounting
Accounting Is Only One Part of Running Your Business
ATA can support your business beyond accounting with payroll & HR, EOR / PEO, immigration, legal services, company registration, audit, recruitment and other operational services through one coordinated relationship.
One Partner. One Platform. Multiple Business Services.
A single coordinated relationship across every service you need.
- Payroll & HR
- EOR / PEO
- Company Registration
- Corporate Governance & Compliance
- Legal Services
- Audit
- CFO Advisory
- Recruitment
- Workspaces
- Digital & Technology
Get Started
Tell Us About Your Accounting Requirements
Tell us where your company operates, your transaction volume and the support you require. Our accounting team will recommend the appropriate solution.