• Issue invoices, tax invoices, receipts, withholding tax certificates, and other related sales/purchase documents • Communicate and coordinate with business partners and relevant external parties, such as government authorities, banks, etc. • Record, review, and organize financial transactions and accounting documents • Prepare and file online withholding tax returns (PND.1, 3, 53, 54) • Prepare VAT reports (PP.30, PP.36) • Handle social security matters, including employee registration and termination, and submit monthly contributions to the SSO • Maintain accurate financial records using Express accounting software • Accurately perform general accounting tasks, including journal entries, general ledger (GL) and bank reconciliations, and financial reporting • Prepare monthly and annual financial statements (optional) • Estimate mid-year tax (PND.51) and file annual corporate tax (PND.50) (option...