Goalwise does not charge anything for this. In fact, we bear the transaction charges for this ourselves.
Also since we will be rebalancing only exit-load free units, you won’t face any penalties for redeeming money from old funds. There might be some tax implications though especially for Debt Mutual Funds.
You will be able to check out these details on the rebalancing page of each goal inside. You can read more about how mutual funds are taxed here.