Home office expenses for employees

Go to navigation menu
Skip to main content

Calculate your expenses

To understand the math behind the home office expenses calculation, refer to how the claim is calculated.

To use the calculator, select from the options below.

This form does not collect or store your information

The CRA is not collecting or retaining any of the information you enter on this page. These amounts are only used to help you determine the amount of work space expenses you may be eligible to claim.

Warning: This form does not collect or store your information

Answer a few questions to begin calculating your home office expenses.

Size of work space and home

Designated work space (room) in your home in square (required)

How to calculate a designated work space (room) in your home

Total finished area of your home in square (required)

What is included in the total finished area

Summary of calculated space

0 square metressquare feet of designated common work space
divided by 0 square metressquare feet of total finished area
equals 0% of your home used as a work space and for employment purposes
multiplied by 0% of hours of employment use in common space (0 hours divided into 168 total hours a week)
equals 0% of your home used as a work space and for employment purposes

The percentage of your designated work space (room) used for employment-use is 100%, that will be used on expenses claimed for the work space only (e.g. maintenance).

Period of time worked at home within the year (required)

How to claim expenses if you have not worked from home for the full year

Start of period 1
(YYYY-MM-DD) (required)

End of period 1
(YYYY-MM-DD) (required)

Work-space-in-the-home expenses

Enter the total amount you paid for an expense for the period(s) you worked from home. Enter $0 if you are not claiming the expense.

Total electricity, heat, water and home Internet access fees you paid from [Start] to [End] in dollars and cents (required)

Other home expenses that includes the work space from [Start] to [End] in dollars and cents (required)

Maintenance costs

Enter the total amounts you paid for maintenance costs for the period(s) you worked from home. Indicate separately the costs of maintenance that affect:

the entire home (for example, furnace repairs), and
the designated work space (room) only (for example, purchase of light bulbs for the work space)
the common (shared) space only (for example, purchase of light bulbs for the work space)

Enter $0 if you are not claiming the expense.

Total maintenance costs paid that affect the entire home from [Start] to [End] in dollars and cents (required)

What is considered reasonable maintenance expenses for the home and work space

Total maintenance costs paid that affect only the designated work space (room) from [Start] to [End] in dollars and cents (required)

What is considered reasonable maintenance expenses for the work space

Your home office expenses results

Print and keep this record using the print preview button below. You will need the amounts below when filling out the T777S form.

Summary of the employment-use amount

$0.00 is the employment-use portion.

This amount will go on line 12line 37 of the T777S form.

The total amount of the employment-use portion is based on:

$0.00 expenses paid for the entire home and work space
$0.00 × 0%
$0.00 expenses paid for the work space only
$0.00 × 0%

Review the amounts you provided

Expense and income amounts provided
From: [Start] to [End], and from [Start] to [End], and from [Start] to [End], and from [Start] to [End]
Expense	Amount to report	T777S form for 2022
Supplies (postage, stationery, ink cartridge, other office supplies, etc.)	[$0.00]	Line 1
Other expenses (employment use of a cell phone, long distance calls for employment purposes, etc.)	[$0.00]	Line 2
Total expenses (you can claim)	[$0.00]	Line 5
Electricity, heat, water, home Internet access fees	[$0.00]	Line 642
Maintenance (cleaning supplies, light bulbs, etc.) Maintenance of entire home (including work space) = [$0.00] Designated work space (room) only = [$0.00] Common (shared) work space only = [$0.00]	[$0.00]	Line 743
Home insurance (commission income only)	[$0.00]	Line 844
Property taxes (commission income only)	[$0.00]	Line 945
Other expenses (rent, etc.)	[$0.00]	Line 1046
Employment-use amount	[$0.00]	Line 1248
Employment income	[$0.00]	Line 15
Total of Supplies, Other expenses, annual dues (line 21200 of return) and RPP deductions (line 20700 of return)	[$0.00]	Line 16
Expenses available to use in future years	[$0.00]	Line 18

Work space data you provided
Size of work space in your home	[0]m²ft²
Hours a week in work space	[0]
Total finished area of your home	[0] m²ft²

You are now ready to print these amounts so you can enter them into the form. Keep your printed results in case we review your claim later and ask to see your calculations.

The data is not saved on this page. If you leave this page without printing you will need to enter your information again.

Date modified:: 2023-05-15

Language selection

Search

Sign in

Home office expenses for employees

Calculate your expenses

Flat rate result

Summary of calculated space

Your home office expenses results

Summary of total expenses

Summary of the employment-use amount

Did you find what you were looking for?

Home office expenses for employees

Calculate your expenses

Flat rate result

Summary of calculated space

Your home office expenses results

Summary of total expenses

Summary of the employment-use amount

Example of working from the dining room table

Did you find what you were looking for?