What expenses can I claim on my tax return related to working from home?

All salaried employees and commission employees can claim: electricity, heat, water, utilities portion) electricity, heat, water) of your condominium fees, home internet access fees, maintenance and minor repair costs, rent paid for a house or apartment where you live.

Commission employees can claim: home insurance, property taxes, lease of a cell phone, computer, laptop, tablet, fax machine, etc. That reasonably relates to earning commission income.