The purpose of a TD1-WS is to:

• A. assist employees in determining partial claims
• B. determine total annual tax liability
• C. calculate CPP contributions
• D. compute severance pay

Answer: (A)

The TD1-WS is a worksheet that helps employees decide how much of their personal tax credits they want to claim for withholding purposes. By using this worksheet, you can allocate or split your credits between employers or across the year, so the amount of tax withheld from each paycheck more closely matches your expected tax liability. This is particularly useful if you have multiple jobs or anticipate changes in your credits during the year, allowing you to make partial claims rather than claiming everything at once.

It’s not about calculating your total annual tax liability, nor about CPP contributions, nor severance pay. Those are determined separately: total tax liability is estimated from wages and tax tables, CPP is based on earnings and CPP rates, and severance pay is an employment-related payout. The TD1-WS specifically targets how much personal tax credit you want to apply to withholdings.