I entered information on a T5008 slip and completed the taxes and sent them in. Then it was noticed that I put all the information in the boxes opposite of what they should be. Therefore there were capital losses not gain. Can I refile an amended return using the losses from the year before to offset the capital gains? Or give me some advice on what to do, please. Thank you!
Yes, the best way to address this would be to re-file the return with the boxes filled in correctly.
As a representative, log into the Represent-a-client web portal to verify that the submitted return has been assessed. As long as it is already assessed, you should be able to immediately re-file the correction. If there is a delay in it being assessed ie: selected for pre-assessment review, then you should wait until it has been assessed before submitting the re-file with the correction.