Accounting · Tax · Audit · for SME
Smart accounting
for smart SMEs.
Smart SD provides full bilingual accounting and tax services to SMEs in Thailand — monthly bookkeeping, annual closing, audit coordination, company registration, VAT, social security, Visa & Work Permit, and Revenue Department coordination.
บัญชี ภาษี คุยง่าย ดูแลจริง — for businesses that want a real partner.
Big 4 audit
onboard
BKK · BMR · CBR · RYG · CCO

Common pain points
Three issues SME owners deal with daily
01 / Deadlines
Missing tax deadlines
Withholding tax (PND 1, 3, 53), VAT (PP 30), social security — penalties pile up fast.
02 / Tax confusion
Unclear which taxes apply
VAT or no VAT? Withholding rate? Which expenses are deductible? — clear answers, no guesswork.
03 / Trust gap
Not sure your books are right
Can your statements pass an audit? Are you ready if Revenue audits you?
Our services
Everything an SME actually needs
Monthly accounting & tax
Bookkeeping under TFRS for NPAEs, monthly tax filings — PND 1, 3, 53, PP 30.
DetailsAnnual closing
Year-end financial statements, PND 50/51, DBD filing, audit coordination.
DetailsAudit (TSA)
Big 4-trained team. Independent audit under Thai Standards on Auditing.
DetailsCompany registration
Limited company, partnership, BOI, FBL — DBD filings end-to-end.
DetailsVAT & SSO
VAT registration, employer SSO, ongoing monthly filings.
DetailsVisa & Work Permit
Non-B Visa, Work Permit, 90-day reports, re-entry permits.
DetailsRevenue coordination
Tax assessment defense, refund claims, written responses to Revenue queries.
DetailsAreas served
We serve SMEs across
Plus online support nationwide — cloud documents, LINE / Zoom meetings.