T3 S15 Supplement not rolling forward?

jane5698 · ‎March 07, 2025

We are working on our T3s and when we roll forward the file to 2024 the main S15 rolls forward fine but the S15 Supplement does not roll forward, it is blank. Lets face it everyone has to use the S15 Supplement because the S15 only has room for one person. In our files everyone is ticked off to roll forward but nothing is re this form. Is this a known issue that will be addressed asap?

Mario B

For the second year, CRA only requires to transmit the modified info from the first year, so you need to choose which one needs to be added

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Mario B

Hi Jane,

It will CF to form S15WS , and then on that form, you need to pick the reportable entity status to indicate whether there is any modification to the beneficiaries. Once you indicate the ones that’s modified or add any new entities, it will be transferred to S15 and S15supp.

jane5698

Thanks so much. So the issue is that instead of the defaut being to add all the same people as the prior year and automatically populating S15 Supplement we have to go through and "add" everyone again in S15 WS.

Mario B

For the second year, CRA only requires to transmit the modified info from the first year, so you need to choose which one needs to be added

T3 S15 Supplement not rolling forward?