The two bands for a mainland business
Article 3(1) of Federal Decree-Law No. 47 of 2022 creates a 0% rate on taxable income up to an amount fixed by Cabinet decision, and 9% on taxable income above it. Cabinet Decision No. 116 of 2022 fixes that amount at AED 375,000. The band applies once per taxable person per tax period, even when the person runs several businesses.
Because it is a band and not a cliff, crossing AED 375,000 never makes the whole profit taxable at 9%. Only the slice above the line is charged.