"Full deductibility" means that you can subtract the whole amount of something from your taxes. For example, if a certain expense is fully deductible, you can reduce your taxable income by the entire cost of that expense. Full definition
In addition, the LIA wants Congress to restore full deductibility of state and local taxes, or SALT, which was capped in December's federal tax overhaul. (newsday.com)
The example assumes full deductibility (gifts to a public charity of real property held for more than one year are generally limited to 30 % of AGI with a 5 - year carryover of unused amount). (schwabcharitable.org)
And if it be responded that Americans give money to charities because it's advantageous to do so for income tax purposes, well, let's be grateful that, in affording full deductibility to charitable giving, the tax code got something right. (firstthings.com)