How can I direct jointly named T4 and other slips to appropriate accounts when using autofill CRA feature?

[kpanch]

My wife and I have joint accounts and thus T4 and other tax slips are issued in joint names. How can I direct individual slips to the appropriate account when using CRA My account feature to autofill the tax forms for each account?

[TurboTaxKim · Accepted solution]

You will have to manually change the percentage on any investment T-Slips (T3s,T5s) you imported using CRA's Autofill. 

You report the interest earned in the same proportion as the funds that were contributed into the account that earned the income. So if these were "your" funds, then you would claim the income on the T3 & T5 slips 100% in your name.

You cannot change the amounts strictly for tax advantages, and you should continue to report it with the same percentages each year, as changing this each year can trigger a review and possible reassessment from CRA.  Generally spouse's claim 50/50.