Ms. Shelly Spring is a 48-year-old widow. While her deceased husband left her financially secure, she continues to work as a course assistant at a local college. Her 2021 salary is $64,000, from which her employer withheld the following amounts:

 

 

RPP contributions El premiums CPP contributions Disability insurance premium $2,960 890 3,166 205 Ms. Spring pays one-half of the total disability insurance premium to the group plan, with her employer paying the balance. The plan provides periodic benefits that compensate for lost employment income. She started making payments in 2019 and made payments of $200 in that year, $250 in 2020, and $205 in 2021. During 2021, because of an extended illness, she received benefits of $5,600. In addition to her salary, her employer provides her with an allowance of $400 per month for maintaining an office in her home. This office is her principal work location. The office occupies 15% of her home and, for the year 2021, the costs of operating the home were as follows: Interest on mortgage Property taxes Electricity and water costs Maintenance and repairs Home insurance $4,200 2,750 1,340 1,800 820 Ms. Spring has two children and they both live with her. Her daughter, Amy, is 19 years old and, during 2021, she was in full-time attendance at the local university for eight months of the year. Her tuition fees of $8,200 were paid by Ms. Spring. Amy has net and taxable income of $7,300 for the year. She has agreed to transfer the maximum amount of her tuition credit to her mother. Her son, Mark, is 23 years old and is dependent because of a physical disability. The disability is not severe enough, however, to qualify for the ITA 118.3 disability tax credit. Mark had no income during 2021. The family's medical expenses, all of which have been paid by Ms. Spring, were as follows: Ms. Spring Amy Mark 962 2,450 8,600 Total medical expenses $12,012