Harvard University announced today that from the next academic year all undergraduates from families with incomes below $200,000 will receive full tuition fee waivers. MIT announced the same limit in Nov 2024.
Further generous aid is available at both institutions. Students may be expected to work for a few hours per week and to make a small contribution from summer earnings. Part time employment is typical of American students so there is no stigma.
Other (rich) universities are also raising their financial aid limits. However financial aid is often geared to American students, or in-state students at public universities (unless it is in the form of a talent scholarship of some type)
Obviously the universities I’ve mentioned are highly competitive, but they, others, and the superb (also highly competitive) four year colleges giving generous aid to international students can make it more economical to attend university in the US than in the UK.
The Fulbright Foundation website is generally an excellent source of information on American universities for British applicants, and vice versa, but it may take a little while to update.