In addition to what Princeton stated above regarding FA for families earning up to $65.000…
What Harvard says: “Our program requires no contribution from Harvard families with annual incomes below $65,000. About 20% of our families have no parent contribution.”
What Yale says: “Families whose total gross income is less than $65,000 (with typical assets) are not expected to make a contribution towards their child’s Yale education. Hundreds of Yale undergraduate families have an expected parental contribution of $0.”
What Stanford says: “Total (Gross Family Income) less than $65,000: Average Net Cost (to your family is) $4,832.”
At these most generous institutions, even if your gross family income is around $150,000, you’re most likely to be able to attend tuition free, i.e., your family just contribute to room and board fees.