The TD1-WS is used to calculate partial claim amounts for:

• A. age, caregiver, and infirm dependents over the age of 18.
• B. age and caregiver dependents under 18.
• C. Only age.
• D. Only caregiver dependents.

Answer: (A)

TD1-WS is the tool used to determine how much of each personal tax credit you can claim at withholding when your circumstances involve dependents or age-related credits. It covers three credits that depend on who you care for and how old you are: the age amount (for someone 65 or older), the caregiver amount (for someone who provides in-home care to an infirm dependent), and the infirm dependent amount (for each dependent who is infirm and over 18 that you support). Because these credits are often partial—based on the specific family situation and ages—the worksheet helps calculate the exact partial claim amounts. That’s why the best answer includes all three areas: age, caregiver, and infirm dependents over 18.