Have you reviewed the CRA rules for this tax credit? I pasted them below.
Basically, if your client does not meet the criteria mentioned in these rules, then the credit will not be calculated (the calculation at Line 14 and Line 16 will remain at $0.00).
(NB: this same approach exists in other areas of the tax software, where values will not be calculated if all the criteria are not met).
Line 45200 - Refundable medical expense supplement
Note: Line 45200 was line 452 before tax year 2019.
You may be able to claim a credit of up to $1,272 if all of the following apply:
- you have an amount on line 21500 or line 33200 of your return
- you were resident in Canada throughout the year
- you were 18 years of age or older at the end of 2020
- The total of the following 2 amounts is $3,714 or more:
Note: If you have income from more than one business reported on one specific self-employment line (13500, 13700, 13900, 14100, or 14300) and you are reporting a profit from one business and a loss from another, use only the profit amounts when determining if you meet the income requirement (noted above) to be eligible for this credit. Otherwise, if you are reporting a loss from only one business at one of these lines, do not include that loss.
