Driving for tax-deductible medical and moving reasons is reduced, too

When we think about tax-related inflation adjustments, we typically expect amounts to bump up, at least a little.

But, as the Federal Reserve made clear when it the first time in almost a decade, inflation has not been a big deal for a while.

So it’s not such a big surprise that the Internal Revenue Service’s annual inflation adjustments for the rates used to figure tax deductible driving looked like some earlier Fed moves: they will drop in 2016.

The lower mileage deduction rates also were expected because the cost of gasoline plays a big role in how they are determined. And as any driver will happily tell you, filling up the tank has gotten a lot less expensive recently.

Business driving deduction drop: In today’s announcement of driving deductions for 2016, the IRS says business driving write-offs next year will be calculated using a rate of 54 cents per mile. That’s down 3.5 cents from 2015’s rate of 57.5 cents per mile.

Similarly, trips taken for deductible medical reasons or to relocate will go down in 2016 from 23 cents per mile to 19 cents per mile.

The standard business mileage rate, explains the IRS, is based on an annual study of the fixed and variable costs of operating an automobile.

The medical and moving rates, on the other hand, are determined by looking at just the variable costs of operating a car.

The biggest fixed automotive cost is the vehicle price. The biggest variable cost is gasoline.

And the role of the variable and sometimes volatile price of gas is obvious in the tax deduction mileage rate changes for the coming year.

AAA says U.S. drivers are paying the lowest average price for regular unleaded gasoline since 2009. In fact, the national average pump price for unleaded is a mere penny away falling under $2 per gallon.

So with the dramatic drop in gasoline prices over the last year, it’s not that surprising that the medical and moving rates will go down more next year, by 17.4 percent, than will the business mileage rate, which will fall by just around 6 percent.

Never a change for charity: As for the miles you can claim next year in connection with travel related to an IRS-qualified charity, that rate will stays at 14 cents.

But that has nothing to do with inflation or gas prices.

The charitable mileage rate is set by law, meaning that it can only be changed by Congressional action.

Keep track of what miles in which year: Remember, too, that the mileage rates that the IRS just released don’t take effect until Jan. 1, 2016.

So if you do any deductible driving between today and Dec. 31, you’ll want to use the 2015 figures to figure your deduction on your taxes that you’ll file next spring.

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