For any NPC, there are situations making the estimate not accurate. Self employed, small business owner, parents’ marital status, etc. UMich is no different from other schools. Nevertheless, they do provide generous aids to low income students from OOS. The first cliff for aids was around $32k and the second cliff was around $65k. These numbers are likely going higher as their endowment is growing fast. For in state, all needs are met. Merit aids are available too but highly competitive.