I’m new to state tax burden research, but found some information from the Tax Foundation that compares what they call the total tax burden rate of a state, which includes state income tax, property tax, sales tax, gas tax, etc.
California is 6 at 10.5%, New Hampshire is 46 at 7.6%. So the spread is 2.9%. So taking a lump sum of money would be subject to the income tax, so that could be 10% vs 0, but from this data it looks like living in a 0 income tax state isn’t as big a reduction as I thought it would be. Definitely interested in other comments or experience.