advice on how to replace supplement

[gattara]

Would appreciate your input on this situation.

My husband is 62, I’m 52, we’ve been retired for 6 years. House paid for, no debt.

Husband has $38,000 federal pension, his TSP balance $1,174,000. We withdraw $1,400/month from TSP.

My Vanguard Rollover IRA: $425K.
Roth – We each have $100,000 in Vanguard Wellington.
Emergency money is split between cash and Vanguard Wellesley: $200K total

Intend to start husband's Social Security when husband is 68-70.

Part of his retirement package included a monthly $1,300 social security supplement. It stops next month. What is your suggestion to replace that $1,300 until we draw from social security (at least 6 years)? Where should we withdraw - our cash stash, Roth or increase our TSP withdrawal? Or am I overthinking this and it really doesn't matter? We won't need to replace it in the very near future since our international travel has ceased, but want a plan for when the time comes. Many thanks.

[obsessed]

It looks like you are in the 12% tax bracket right now and when you start taking SS and have to take RMD's you will be pushed into the 22% bracket if I have your numbers right.

In that case, I'd pull the additional out of the TSP and if you still have room in the 12% bracket consider doing Roth conversions up to the top of the 12% bracket.

[gattara]

Thank you, this makes sense to us.