While the tax on my home puts me over the 10K SALT limit, why does TurboTax not add part of that paid tax so I can reach the full 10K SALT deduction, & not $280. short?

[VWguy]

What can I do to make sure I get the full 10K SALT deduction. Although TurboTax says I'm approx. $280 short, the program refuses to count any of the $2,600 I paid in real estate tax on my personal home in 2018.

[carlsills]

The $280 is the amount you cannot claim as a deduction over the $10K limit.  You probably paid around $7680 SALT and $2600 Property tax.  The total SALT deduction is $10K, $280 is the amount you cannot claim.  It is not intuitive.