Here is what I would suggest.
Your current AA is 74/26, which is close to in-between the 70/30 and 80/20 AA targets that you often mention. There is no need to have tax efficient placement hijack your AA.
In taxable, invest $715,000 in municipal bond ladder using $715,000 money market funds. You can have your brokerage create a municipal bond ladder for you or use target maturity municipal bond funds. A 10-year Bulletshare ladder would yield 3.96% or a 5.21% tax-equivalent yield for someone in the 24% tax bracket.
In tax-deferred, enlargen CD ladder by $357,000 redeeming money market funds.
With money market funds yielding 5% there is no need to rush.
Then go and enjoy life, reinvest maturing CDs or municipal bonds at the end of the ladders as needed, monitor the AA and leave things be as long as AA is between 70/30 and 80/20.
If you want to restore your AA to a more conservative 70/30, then just sell $309,000 of equities in taxable account and increase muni ladder.
https://www.invesco.com/bulletshares/tools/bond-ladder
| Floating AA | | | | Rebalance to 70/30 AA | | |
| Current | Changes | Rebalanced | | Current | Changes | Rebalanced |
Taxable: | | | | | | | |
Money market | 715,000 | -715,000 | 0 | | 715,000 | -715,000 | 0 |
Muni bond ladder | | 715,000 | 715,000 | | | 1,024,000 | 1,024,000 |
Equity ETFs | 4,785,000 | | 4,785,000 | | 4,785,000 | -309,000 | 4,476,000 |
| 5,500,000 | | 5,500,000 | | 5,500,000 | | 5,500,000 |
| | | | | | | |
I-Bonds | 135,000 | | 135,000 | | 135,000 | | 135,000 |
| | | | | | | |
Tax-Deferred: | | | | | | | |
Money market | 357,000 | -357,000 | 0 | | 814,000 | -814,000 | 0 |
CDs | 815,000 | 357,000 | 1,172,000 | | 357,000 | 814,000 | 1,171,000 |
| 1,172,000 | | 1,172,000 | | 1,171,000 | | 1,171,000 |
Tax-Free: | | | | | | | |
Equity ETFs | 914,027 | | 914,027 | | 914,027 | | 914,027 |
| | | | | | | |
Total | 7,721,027 | 0 | 7,721,027 | | 7,720,027 | 0 | 7,720,027 |
| | | | | | | |
Equities | 74% | | 74% | | 74% | | 70% |
Fixed Income | 26% | | 26% | | 26% | | 30% |
Total | 100% | | 100% | | 100% | | 100% |
| | | | | | | |