I am itemizing my deductions this year and have added in more sales tax. As I add in more sales tax, my federal tax due does not recalculate. Help!

[AlanT]

In late December of 2017, Congress passed the largest tax reform bill in over 30 years.  The state, local, property, and sales tax (SALT) deduction is capped at $10,000.  Once you reach $10,000 in deductions, adding more sales tax will not affect your income tax return.