Joint interest income between spouse at 50% each. Report half of T5 amount on each of spouse returns?

We have interest income but want to split it 50% (based on proportionate share) between wife and I. I saw an option on turbo tax to apply % but it did not actually do it. For example if interest income on T5 was $100, should I do $50 for each of us when reporting the T5s or is there another way Turbo Tax does it?