Home Office Tax Deduction for Canadian Corporations

Working from home does not automatically make your household bills deductible by your corporation. The corporation is a separate taxpayer. First identify who incurred the expense and whether the arrangement is employment, a genuine rental, or a business purchase paid personally on the corporation's behalf.

Two arrangements worth distinguishing are an eligible employee claim and renting space to the corporation. They have different conditions, reporting and eligible costs. Neither is automatically the best choice for every owner.

An employee claim: T2200 and T777

If you earn employment income from your corporation, you may qualify to deduct unreimbursed work-space expenses personally. A dividend alone does not establish an employment-expense claim.

You must meet CRA's employment conditions, including being required to pay the expenses and having a completed, signed Form T2200. For the workspace, you generally need to be required to work from home and do so more than 50% of the time for at least four consecutive weeks, or use the space exclusively to earn employment income and regularly and continuously for work-related meetings under the applicable workspace rule. A formal telework arrangement can satisfy the requirement to work at home. The claim applies to qualifying periods and costs used in your work. See CRA's employment-expense guide and detailed-method eligibility rules.

Shareholder-employees have an additional hurdle

Being able to sign a T2200 for your own company does not make every expense deductible. You must establish that you incurred the costs as an employee and were required to pay them in that capacity. CRA asks for comparability with employees who are not shareholders, either in your company or similar businesses. A written contract by itself may not establish this. See CRA's guidance for employees who are shareholders.

Keep the T2200 and receipts. Calculate eligible expenses on T777 for your personal return; the T2200 records employment conditions rather than approving a dollar deduction.

Which employee expenses qualify?

The table assumes the eligibility conditions are satisfied and only the employment-use portion is claimed.

Internet installation charges and modem/router rental are not eligible home-internet access fees. Costs already reimbursed by the employer cannot also be claimed personally. CRA's eligible-expense list explains direct repairs, shared costs and commission-specific conditions.

Example: a dedicated room versus shared space

Suppose an eligible employee's office is 150 square feet in a home with 1,500 square feet of finished area. The space fraction is 10%. If $3,600 of qualifying whole-home utilities relates to the eligible period, the allocated amount is $360, before applicable deduction limits.

If that same area is shared with personal activities and used for work 40 hours per week, the time adjustment is 40 ÷ 168. The combined fraction is about 2.38%, giving $85.71 of those utilities. A kitchen or dining table is therefore not automatically disqualified; eligibility and shared-use allocation both matter. Follow CRA's workspace calculation instructions.

Employment work-space expenses cannot create or increase a loss from that employment. Unused eligible amounts may carry forward subject to the rules for income from the same employer. See CRA's Employment Expenses guide.

Renting space to the corporation

A genuine rental arrangement is different. The corporation may deduct rent that is reasonable for its business use. You report the rent personally, generally using Form T776 for rental income, and deduct eligible costs of earning that income.

CRA specifically addresses home-office rent paid to a shareholder: a personal deduction for related costs depends on there being a commercial income-earning activity. The corporation's rent must also be reasonable in the circumstances. The individual self-employment workspace restriction is not the corporation's rent test. See the home-office rent example in CRA's shareholder audit guidance.

Document the space, its business use, the rent, payment terms and evidence supporting the amount. A floor-space percentage can help allocate expenses, but it does not prove that a particular rent is reasonable. Charging exactly your allocated household costs also does not, by itself, establish a commercial rental activity.

Rental expenses and personal reporting

For a qualifying rental, reasonable costs attributable to the rented space may include property taxes, insurance, utilities, eligible repairs and interest on money borrowed to acquire or improve the rental property. Mortgage principal is not an expense. Capital improvements follow capital rules rather than being ordinary repairs. Consult CRA's rental-expense guidance.

Split whole-home expenses between rental and personal use, and keep rental income and expenses on the personal return separate from the corporation's rent deduction. CRA explains area and room-based allocations in its Rental Income guide. Do not also claim the same personal cost as an unreimbursed employment expense.

Commercial office rent can have GST/HST consequences. Check the landlord's registration status and small-supplier rules; do not assume an office lease is exempt merely because the building is also your home. See CRA's commercial real-property rental guidance.

Check principal-residence consequences before claiming CCA

Converting part of a home to rental or business use can trigger change-of-use rules. CRA generally does not treat a partial use change as occurring when the income-producing use is ancillary to the home's main residential use, there are no structural changes to make it more suitable for that use, and you claim no capital cost allowance on that part.

Claiming CCA or making a substantial conversion can change the result. Review CRA's principal-residence and change-of-use guidance before treating depreciation as another routine home-office cost.

Keep the corporation and any sole proprietorship separate

T2125 business-use-of-home expenses relate to your own unincorporated business. They are not a way to deduct your corporation's costs on your personal business schedule. If you also operate a sole proprietorship, allocate costs to the activity that actually incurred them and avoid duplicate claims.

Keep a floor plan, qualifying work periods, expense receipts and payment records. Add the employment documents or rental agreement that supports your chosen treatment. Ask your accountant to review the arrangement before posting recurring household amounts to the corporation.

How Ledg helps

Ledg organizes the corporation's recorded expenses and supporting receipts for your accountant handoff. Record the agreed corporate treatment there; keep your personal rental or employee-claim calculation with your personal tax records.