The long-term disability (LTD) deduction covers a percentage of wages for employees who are injured or too sick to work for an extended period of time. When LTD is deducted pre-tax, employees pay slightly less for premiums, but are charged federal income tax on any benefits received. Post-tax LTD deductions, on the other hand, result in employees receiving slightly less take home pay each pay period, but their benefits aren’t subject to any further tax if they use them. Short-term disability (STD) is often taxed in the same manner.