Inflation adjusted revenue rose by 40% between 1983 and 1989 vs. the comparable period from 1975-1981 where revenue rose by 32%. An 8% increase after a 25% across the board cut.
Reagan was not the first president to cut taxes, either. Kennedy proposed an across the board tax cut in 1961 and brought it up again in 1963. Johnson took over the crusade and passed a 20% rate cut in early 1964. This one is easier to measure because it took effect immediately, whereas the 1981 cut was a 3 year plan.
During the 5 year period from 1960 to 1964, tax revenue rose a weak 10.3%. The economy was in a slight recession for half of 1960 and 1961, but was fully recovered by the end of 1961. During the comparable post-tax cut 5 year period from 1965-1969, tax revenue grew by 43.9%. So, under the reduced income tax rates, inflation adjusted income tax revenue increased 4 fold.
However, Johnson also enacted a temporary income tax surcharge to cover his Vietnam War deficits, hence the abnormally high years in 1969 and 1970. Even if we stop at 1968, the year before the surcharge, revenue grew by 18.6% from 1965, or 8.3% more than it did in the years prior under the significantly lower tax structure.
http://usgovernmentrevenue.com/downc...ocal=s#usgs302