Said It Here

How to minimize taxes on a large pre-tax retirement account and RMDs

Large traditional pre-tax balances and required minimum distributions create a heavy tax burden and anxiety about future rates upon retirement. Mixing pre-tax and post-tax money in these accounts also complicates strategies like the backdoor Roth conversion.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

  1. 1
    Doing Roth conversions to pay taxes gradually
  2. 2
    Delaying Social Security until age 70 to open up tax space
  3. 3
    Building cash or CD ladders to live off during early retirement years
  4. 4
    Consulting a CPA or tax advisor for customized withdrawal strategies
  5. 5
    Thinking about combining traditional IRAs at Vanguard and using Fidelity to backdoor Roth IRA
  6. 6
    Rolling all traditional IRA funds into a current employer 401k plan if the plan allows it

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/personalfinance2 people · September 2026

I have over 800k sitting in a pre tax 401k. I am going to be retiring in 5-6 years at age 66 or 67. Is there some way to avoid or minimize a large tax burden-especially when RMD's kick in....source ↗

InitialNo1971 · r/personalfinance · 35 upvotes

I realized I have created some weird mix of pre tax and post tax money iny IRA.source ↗

Imallvol7 · r/personalfinance · 1 upvotes

Something about since it's mixed pre tax and post tax I can't do the backdoor now because it's a weird tax situation or is that wrong.source ↗

Imallvol7 · r/personalfinance · 1 upvotes

Some things I read made it seem like I couldn't just put in $7k then backdoor Roth it because the account has pretax and post tax moneysource ↗

Imallvol7 · r/personalfinance · 1 upvotes

Where this came up

People with this problem also raised