To use the CRA payroll deductions online calculator, you need to know the TD1 Claim Code
for the person whose take home pay is being calculated. This is the code
which changes depending on how many deductions a person has. See our
article on TD1 forms, which includes links to
obtain the forms from CRA, and links to obtain the equivalent forms used in
Québec.
The CRA online calculators can be used by an
employer to calculate payroll deductions for employees. They can also be used by an individual to check their own take
home pay, or to estimate what their take home pay would be in different
circumstances. If you are an employee using the calculators,
make sure you include taxable benefits in your income for the
calculations. If you find that your deductions do not seem to be
correct, you should ensure that your employer has current TD1 forms for you,
both federal and provincial.
Because payroll deduction rates can change semi-annually,
if you are using the downloaded software you
should get on the CRA electronic
mailing list service for payroll deductions, so you can be notified when
new rates are available, or if there is a change in the software.
If you prefer to calculate deductions
manually, you can get instructions and the payroll deduction
tables from the CRA web page on Calculating
deductions.
To calculate payroll taxes for Québec,
download the WinRAS
program from Revenu
Québec. See also General
information - Source deductions and contributions on Revenu Québec
website.
Revised: May 24, 2013