Hearing depends on a series of events that change sound waves in the air into electrical signals. Your auditory nerve then carries these signals to your brain through a complex series of steps. Sound waves enter the outer ear and travel through a narrow passageway called the ear canal, which leads to the eardrum.
However, if your child is 21 or older and you pay him $1,700 or more during the year, you can withhold Social Security and Medicare taxes from his pay. If you choose not to withhold the taxes, you must pay your adult childâs Medicare and Social Security taxes yourself.
How much can you deduct? In general 20, you can deduct up to $8,000 annually for each child who is aged six or under at the end of the year, and up to $5,000 for each child aged seven to 15 at any time in the year. This limit is increased to $11,000 annually for each child who is eligible for the disability tax credit (see topic 80).