SST Sales & Service Tax Guide

Overview

AIAccount has built-in support for GST, SST, and VAT, meeting tax compliance requirements for Malaysia, Singapore, and other countries. The system automatically calculates tax amounts, generates tax reports, and records tax payables under the 2-4000 GST Payables account.

Key Features

  • Tax Code Management — Enable sales tax and expense tax codes under "Settings > Tax Codes"; only enabled codes appear during transaction entry
  • Automatic Tax Calculation — The system calculates tax amounts based on selected tax codes and displays them on invoices
  • Item vs Subtotal Method — Choose in "Financial Settings": Item method (default) calculates tax per line; Subtotal method calculates tax on the total
  • Tax Inclusive/Exclusive — Set the default to Tax Inclusive or Exclusive in Financial Settings; new transactions apply the setting automatically
  • GST Rounding Differences — When using the Subtotal method, the system automatically posts any variance to the GST Rounding Difference account
  • SST/GST Reports — Automatically generate detailed input tax and output tax reports for filing with tax authorities

Step-by-Step Guide

  1. Go to "Settings > Tax Codes" to view pre-configured country-specific tax codes
  2. Enable applicable codes (e.g., SR-8% for standard-rated sales, TX-8% for standard-rated purchases)
  3. When recording sales or expenses, select the appropriate tax code for each line item
  4. The system auto-calculates the tax amount and displays it at the bottom of the invoice
  5. When filing is due, go to the Reports module to generate GST/SST reports
  6. After paying taxes, record the payment to the 2-4000 GST Payables account

Important Notes

  • Do not use the same Tax Code for both Sales and Expenses, as this may prevent e-invoices from being issued properly
  • The two calculation methods may produce slight differences due to rounding, but you must use the same method consistently
  • The Tax Inclusive setting only affects new transactions; existing transactions are not changed
  • GST payable is tracked in the 2-4000 account, which should return to zero after tax payment