Hello All.  I don't know if this is even allowable, but here goes.  Client pays $15,000 in real estate (property) tax.  Thus, already capped out for the $10,000 limit for federal state and local taxes.  They are not subject to NIIT.  I would like to claim $0 of their state income tax withholding on Schedule A for state income tax.  This should reduce the taxability of their state tax refund on next year's return, correct?  This is my thinking.  Any thoughts, suggestions to override the state income tax deduction?  I can't find one.  Thanks!