
Tunisia's 2026 Optional Flat Tax: 4,000–5,000 TND for Six Audit-Free Years — Should You Opt In?
Tunisia's 2026 Finance Law lets small businesses under 100,000 TND turnover pay a flat 4,000 or 5,000 TND a year — half that in rural zones — and skip tax audits for six years. The flat tax only beats the progressive schedule above roughly a 45% net margin in the lower bracket and 26% in the upper one; here is the break-even math, the eligible activities, and the four traps.










