ISTQB Certified Tester Salary 2026: Country-by-Country Data, Specialisation Premiums, and Real ROI Last updated on: April 23, 2026 Leave a Comment The Short Answer Across the eight major markets we cover below, holding the ISTQB Certified Tester Foundation Level (CTFL) is associated with roughly a 10 to 20 percent salary premium over …Continue Reading about ISTQB Certified Tester Salary 2026: Country-by-Country Data, Specialisation Premiums, and Real ROI →