From A as Additional education to D as Dysgraphia, dyslexia – all income tax deduction in German tax return.
If I write “is as außergewöhnliche Belastungen (Exceptional costs) deducted”, it means that this expenses are deducted only if they over individual limit.
How to calculate the limit of außergewöhnliche Belastungen read here
Other parts: E-H, I-N, P-W