A disgruntled ex-employed call the state, reported my family's glass business for sales tax evasion. Among the local state florida sales tax auditors called to schedule some time to pore through our books. Contributing an insurance deductible $1,000 will lower the taxable income from the $30,000 annually person from $20,650 to $19,650 and save taxes of $150 (=15% of $1000). For your $100,000 each and every year person, his taxable income decreases from $90,650 to $89,650 and saves him $280 (=...