Can insurance premiums be added to medical expenses that are deducted from your paycheck? Does this include medical, dental, and vision?

[NCperson]

you are not allowed to 'double dip' 

if the medical expenses are deducted from your paycheck on a pre-tax basis (and normally they are), then you can't also deduct the medical expenses if you are itemizing your deductions.  That s a form of 'double dip'.  Since the medical expenses are paid with pre-tax money, you are already getting a benefit of not paying taxes on that income, so you can't get the benefit AGAIN but deducting as a medical expenses.

Frankly, for most, it is unlikely they could be deducted if you itemized.  Only the medical expenses that exceed 7.5% of your income are tax deductible and then you must have enough other deductible expenses to itemize.  Most, but not all taxpayers, take the standard deduction.

[Mike9241]

Can insurance premiums be added to medical expenses that are deducted from your paycheck? Does this include medical, dental, and vision?

to answer the second question first - yes but see the answer to the first question. 

are you entitled to take a medical expense deduction - maybe yes maybe no. even though deducted from your paycheck, your employer may have an employee benefit plan so that your taxable wages line 1 of your W-2 are reduced for the amount deducted. thus you have already gotten a deduction. so no double dipping.  if you don't know the answer to this ask your employer. 

[Opus 17]

Most of the time, medical insurance premiums paid through payroll deduction are pre-tax, that means, already taken off your taxable income.  Since the money is already taken off your taxable income, you can't include it as a tax deduction since that would be double-dipping.  

Premiums you pay out of pocket with after-tax money are allowable to be listed as deductible medical expenses, although whether you will get an actual tax reduction depends on your overall tax deduction situation.