The AZ-800 exam is the Microsoft Azure IoT Developer Specialty certification, which is unrelated to tax deductions. Charitable deductions are claimed on your tax return, and the rules and limitations for charity deductions differ based on your country or region’s tax laws.      To find out if you can claim multiple charity deductions, see the tax legislation in your area. Taxpayers in the United States, for example, can normally deduct qualified charitable contributions given to recognized organizations. However, depending on your adjusted gross income (AGI) and other criteria, the amount you can deduct may be limited.