Land in Southeast Asia —
start with compliance,
win with digital intelligence

Early-stage assessment should prioritize five compliance areas, ideally starting 3–6 months before the site-selection decision:

• Investment access restrictions: caps on foreign shareholding (varying by industry), whether a local JV partner is required, and negative lists for restricted sectors
• Tax-incentive eligibility: Vietnam EPE export-processing enterprises, Thailand BOI promotion categories, Malaysia MIDA Pioneer Status, and Indonesia KITE × CTAS export duty-exemption schemes
• Digital filing system integration: Vietnam GDT e-invoicing, Malaysia LHDN MyInvois, Indonesia e-Faktur and Core Tax, and Thailand e-BOI online application
• Foreign exchange & profit repatriation: differences in each market's rules on dividend remittance, cross-border payments and FX quotas
• Labor, social security & localization: local labor law, minimum wage, social-security contribution rates, and caps on the share of foreign employees

Vietnam's e-invoice and e-document systems are currently based on Decree 123/2020/NĐ-CP (its predecessor Circular 78/2021/TT-BTC was replaced by Circular 32/2025/TT-BTC effective 2025-06-01) and were further upgraded in 2025 by Decree 70/2025/NĐ-CP and Circular 32/2025/TT-BTC (effective 2025-06-01). Foreign-invested companies' ERP should review the following:

• Real-time GDT e-invoice integration: all sales invoices must be transmitted in real time or in batches to Vietnam's General Department of Taxation (GDT), sharply reducing room for after-the-fact corrections
• Three-way data consistency: accounting records, e-invoices, and customs and tax filings must reconcile; gaps can trigger audits
• E-document & e-signature management: invoices, delivery and shipping documents must meet the format, signature and retention requirements of Decree 123 and Decree 70/2025
• Alignment with VAS: local subsidiaries' financials must comply with Vietnamese Accounting Standards (VAS); group consolidation requires dual-track handling

Thailand's BOI grants different incentives by activity category, and the corporate income tax (CIT) exemption period is the most critical consideration:

• A1+: up to 10–13 years of CIT exemption (core high-tech and targeted industries)
• A1: 8 years of CIT exemption, no cap on the exempt amount
• A2: 8 years of CIT exemption (capped)
• A3: 5 years of CIT exemption; A4: 3 years of CIT exemption
• Category B: generally non-tax incentives (import-machinery duty relief, foreign experts, land and FX-remittance rights); whether additional CIT benefits apply depends on the specific measure and project conditions
• e-BOI online application: filings include the investment plan, machinery list, talent requirements and local-procurement commitments
• Digitalization & upgrade measures: BOI offers additional investment-retention and expansion incentives for smart manufacturing, digitalization and industrial upgrading, and ERP adoption may fall within scope — actual deductible items, rates and conditions must be assessed against the current BOI measures and project-approval terms
• Key timing: the investment plan must be approved before machinery is imported, otherwise the exemption cannot be applied

Malaysia's e-invoicing (MyInvois) has been rolled out in phases since 2024. Under LHDN's latest timeline, taxpayers with annual revenue of RM1–5 million have a mandatory start date of 2026-01-01; the exemption threshold has been raised from RM500,000 to RM1 million in annual revenue:

• MyInvois integration: all B2B and B2C transactions must be issued as e-invoices via LHDN's central platform, and ERP needs a direct API connection
• 55 data fields (per the latest IRBM e-Invoice Guideline 4.6): including both parties' TIN, product HS Code and tax classification codes — high data-completeness requirements
• Pioneer Status cross-checking: for companies with Pioneer Status, e-invoice data will be cross-checked against tax-incentive filings
• Cross-border payment WHT assessment: dividends paid by a Malaysian company are generally not subject to withholding tax under the single-tier system; however, cross-border payments such as service fees, interest and royalties may still involve WHT, and DTA treaty applicability must be confirmed case by case
• Implementation timeline: allow at least 3–4 months for integration, testing and staff training, and confirm your phase against the latest LHDN guideline and FAQ

Indonesia's Core Tax System (CTAS) went fully live in 2025, moving corporate e-filing into a mandatory compliance phase; combined with the changing cost structure of the post-tariff era, manufacturers need five adjustments:

• From Cost Down to Cost Optimization: simply cutting procurement costs is no longer enough — tax, duty and logistics costs must be optimized as a whole
• HS Code tariff database: every imported material and exported product must map precisely to an HS Code, affecting import duties and export-exemption eligibility
• DDP cost calculation: customer quotes should shift from FOB to DDP (inclusive of duties and taxes) to protect margins
• Full e-Faktur compliance: e-invoices must be consistent with Core Tax filings; data mismatches will affect PPN (VAT) credits
• KITE export-exemption management: KITE export-oriented enterprises must finely manage duty-exempt import materials versus final-product export ratios