The document discusses Cambodia's tax system. It covers:
1. The Tax Department operates under three regimes - the real regime for large enterprises collecting over 80% of revenues, the estimated regime for small taxpayers, and a simplified regime not currently in use.
2. The real regime has self-assessment for enterprises meeting thresholds for legal form, annual turnover, or business activity. Taxpayers under the Large and Medium Taxpayer Bureau either pay at the Large Taxpayer Unit if over $250,000 in turnover, or Medium Taxpayer Unit if under.
3. The estimated regime applies estimated profits and fixed tax rates for 3-12 months to small businesses under turnover thresholds.
4. Resident taxpayers