Great question! The point is it wouldn't be a fixed amount each month specifically for the chasuna. You would need to run a portfolio simulator over many years with all your long term goals to figure out one number of how much you need to invest per month. That one number which represents chasunas, tuition, retirement, etc, will definitely be on your YNAB budget, but won't be specific for chasunas. This is the importance of building an end to end full life investment strategy. You can do that in RightCapital and then take the output number of monthly investments and add that to your YNAB