Backdoor Roth advice

Hello,

 

I currently contribute $6000/year to my traditional IRA from my post-tax paycheck. 

I don't get any tax deduction because my wife is covered by a retirement plan at work, and we make over $129K. Hence, basically all my money in traditional IRA is "taxed" already.

 

Now, I want to do a backdoor Roth conversion. Many blogs say that if I do the conversion, then I have to pay taxes on the amount I convert, but it doesn't make sense in my case.

 

What to do about this?