Despite tax-law changes that have made it harder to claim the deduction for medical expenses, it's still worth checking to see if you can take it for 2018. As it stands, you can deduct qualifying medical expenses that exceed 7.5 percent of your adjusted gross income (taxable income minus certain adjustments) as long as you itemize your deductions. That floor is scheduled to rise to 10 percent in 2019, which will be a harder hurdle to clear. This means that before the calendar flips to 2019, it might be worth strategizing to get the deduction this year. "If someone is close to getting the deduction or knows they'll itemize, then if there are things you can accelerate into 2018 instead of waiting until 2019, it might make sense to do it," said Julie Welch, a CPA who serves on the American Institute of CPAs' personal financial planning executive committee.

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For instance, you could consider getting medical procedures or equipment and supplies (i.e., new glasses or a new wheelchair) before the end of the year instead of putting them off. If you do it with hopes of deducting your associated costs on your 2018 return, make sure the bill is paid this year, Welch said. Be sure not to overlook other qualifying expenses, such as co-pays, co-insurance, dental work and travel costs associated with health care, such as getting to and from the doctor's office. You can check the IRS list of qualifying expenses if you're unsure whether something counts toward the deduction. Also, if you pay for health insurance with after-tax dollars, your premiums might be able to count toward the deduction. Long-term care premiums also are deductible up to amounts that depend on your age (see chart below).

Deduction limits for long-term care premiums Age before close of taxable year 2018 maximum deduction Under 40 $420 More than 40 but under 50 $780 More than 50 but under 60 $1,560 More than 60 but under 70 $4,160 Over 70 $5,200