The three numbers that decide your position
First, the rate bands. Taxable income up to AED 375,000 is taxed at 0%, and anything above that is taxed at 9%. The bands apply to taxable income, not revenue, so a company turning over AED 4 million on thin margins may still sit in the 0% band.
Second, the small business relief threshold of AED 3 million in revenue. A resident business at or under that figure in the current and every earlier tax period can elect to be treated as having no taxable income. Third, the deadline: returns and payment are both due within nine months of the end of the tax period.
Worked example: Al Noor General Trading LLC in Sharjah closes its year on 31 December with taxable income of AED 520,000. The first AED 375,000 is taxed at 0%. The remaining AED 145,000 is taxed at 9%, which gives AED 13,050 payable by 30 September of the following year.