Monthly bookkeeping is the compliance backbone. Missing a single month can cost THB 3,000-20,000 in penalties. NYC keeps books for 200+ companies from 3-person SMEs to listed subsidiaries using FlowAccount, Xero and QuickBooks Online.
A Thai company files at least five monthly returns: PP.30 (VAT, by the 15th), PND.1 (payroll WHT, by the 7th), PND.3/53 (vendor WHT, by the 7th), SPS.1-10 (social security, by the 15th), and sales/purchase VAT registers. NYC's full-service package starts at THB 3,500/month for micro-SMEs and THB 8,500/month for growth-stage companies.
1) PP.30 — VAT return (by the 15th) for every VAT-registered company. 2) PND.1 — payroll WHT 5-35% (by the 7th). 3) PND.3 — WHT on individuals 3-15% (by the 7th). 4) PND.53 — WHT on companies 1-3% (by the 7th). 5) SPS.1-10 — social security 5% capped at THB 750 per employee (by the 15th). Late filing draws at minimum a THB 200 penalty plus 1.5%/month surcharge.
FlowAccount (Thai-first, direct e-Tax Invoice integration with the Revenue Department), Xero (multi-currency, ideal for US/UK groups), QuickBooks Online (US GAAP, useful for group offices). NYC picks the platform against your size and migrates the data at no charge.
The Revenue Department mandates e-Tax Invoice by Email for companies above THB 30M revenue from 2024 and recommends it for anyone seeking faster VAT refunds. NYC configures the system and delivers a bilingual 4-hour staff training plus reference manual.
Petty cash requires voucher + reimbursement + original receipts kept for 5 years. Bank reconciliations run within 10 days of month-end. NYC uses API-based auto-reconciliation with SCB, KTB and BBL to eliminate 60% of manual entry.
Beyond filings, NYC produces a 13-week rolling cash-flow every quarter and warns when runway drops below 3 months, with funding-source guidance (SME Bank, BOI Loan, EXIM Bank).
Import opening balances, chart of accounts, customer/vendor masters and inventory into FlowAccount or Xero.
Collect tax invoices, receipts, billing notes and bank statements via LINE OA or Google Drive; our team posts entries within 5 business days of month-end.
PP.30 by the 15th, PND.1/3/53 by the 7th, SPS.1-10 by the 15th — all e-Filed with electronic payment.
Deliver trial balance, P&L and balance sheet with a dashboard by the 20th of the following month.
Close books within 4 months of fiscal year-end and coordinate with the external CPA for SBCh.3 and DBD statutory filings.
The Accounting Act B.E. 2543 requires audit-traceable journal and ledger records. Excel is legal only with an audit trail; the Revenue Department now cross-references electronic filings, so cloud accounting is safer.
Yes. Every VAT-registered company must submit a PP.30 return each month even when the figures are all zero, starting from the month registration takes effect. A missed nil return draws a fine of THB 500 per month, and repeated gaps invite a Revenue Department review of the registration itself.
No — the 3% service WHT starts above THB 1,000 per contract, but vendor master data with ID copies must be kept.
DBD fine THB 6,000 + director fine THB 6,000 + heightened Revenue Department audit risk. Timely filing lowers audit exposure by roughly 60%.
Yes. Professional service fees fall under the 3 percent withholding tax rule, so a corporate client deducts that amount and issues a withholding tax certificate with payment. The deduction is not required when the payment goes through the Revenue Department's e-Withholding channel, where the bank remits the tax automatically.
Send a quick brief for this exact service. Our team replies via LINE within 15 minutes during business hours.