Rental property - entered in incorrect cost basis a few years ago and thus have an incorrect depreciation for a few years ... what to do?

Dear Community:

 

I was hoping you can help me.  3 years ago, I started using Turbotax and at that time, I entered in the basis for my existing rental property incorrectly and thus, for the last three years, I have been depreciating more than I should have. 

 

What should I do? 

 

Option A: I could do a 1040x for each of the three years but this seems so complex. 

 

Option B: Can I just correct the basis this year, taking into account the TOTAL depreciation thus far I have expensed including the incorrect amounts these three years and just move forward?

 

My preference is Option B.  It would mean that for three years past, I should have paid more taxes (I had a higher depreciation expense) but it also means that in the outyears, I will now have a lower depreciation expense than I would have if I did not make the mistake since the basis will be lower.

 

Any help is appreciated.  Thank you! Ray