The question "Can Trump implement his tax reform" is similar, but not quite the same as my question.
I would like to know the typical time it takes between the new president inauguration and the tax year of the new code.
It seems that Reagan, elected in 1980, passed his tax reform within 7 months of swearing in. Further reading shows that bits of it were retroactive to 1981.
Is this fast turnaround typical?
