Quick take: At 70, two things change: Social Security maxes out (the 32% delayed-credit advantage is now banked) and you have three years before RMDs start at 73. The HYSA's job changes too — it is now the staging account for RMDs, charitable QCDs, and the last clean window to do Roth conversions before the IRS forces distributions. Top 5 ranked below, plus the MYGA math for the dollars you will not touch for 5+ years.
| Rank | Bank | APY | Min | Best for the 70-year-old because |
|---|---|---|---|---|
| 1 | Marcus by Goldman Sachs | 4.40% | $0 | Highest steady rate, no teaser games, simple statements |
| 2 | Ally Bank | 4.35% | $0 | Sub-account buckets for RMD, QCD, tax escrow, supplemental insurance |
| 3 | Synchrony | 4.50% | $0 | ATM card for travel; competitive APY |
| 4 | Discover | 4.25% | $0 | 24/7 U.S. phone support — matters when family help managing accounts |
| 5 | Capital One 360 | 4.10% | $0 | Branch backup for in-person help |
At 70 the HYSA is the operational hub of retirement income. Social Security is now at its max (32% above FRA). Pension checks, if any, are flowing. RMDs will start in 3 years. The HYSA collects all of this and disburses to checking. Three features matter more than 10 bps of yield:
By 70, many couples have $300K–$1M in conservative cash spread across HYSAs, CDs, and money market accounts. FDIC math:
A couple with two individual + one joint + one trust account at the same bank can cover $1.75M—$2M+ at a single FDIC institution. Confirm the math with the bank's deposit-insurance calculator before relying on it.
From 70 to 72, you have three tax years with no forced distributions. This is the cleanest window for:
For the dollars you will not touch for 5+ years (typically the second cash bucket), a MYGA's locked rate plus tax deferral wins on math. The 2026 spread:
| Vehicle | 2026 yield | Rate behavior | Tax (non-IRA) |
|---|---|---|---|
| HYSA | 4.25–4.50% | Resets monthly — can drop fast | 1099-INT annually |
| 5-yr MYGA | 5.00–5.75% | Locked 5 yrs | Tax-deferred until withdrawal |
| 7-yr MYGA | 5.25–6.00% | Locked 7 yrs | Tax-deferred until withdrawal |
On $150K over 7 years assuming HYSA averages 3.50% and MYGA at 5.50% locked: HYSA grows to ~$191K, MYGA grows to ~$217K. Roughly $26K of extra return on the same risk profile.
Talk to a licensed independent expert. Hans.
The 3 years between 70 and 73 are the cleanest tax-planning window of retirement. Most 70-year-olds let this window pass without coordinating their HYSA, Roth conversions, QCDs, and MYGA ladder.
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📞 Hans Goldstein · 213-414-2808 · NPN 20602398, independent licensed insurance producer appointed with multiple A-rated carriers
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HYSA rates change daily and vary by bank, account tier, and promotional period. The rates shown reflect publicly posted APYs as of the date stated above and may be different by the time you open an account — always confirm the current APY on the bank's own site before transferring funds. FDIC coverage is $250,000 per depositor, per insured bank, per ownership category; NCUA coverage at federally insured credit unions is the same limit. This article is general information for educational purposes; it is not a personalized recommendation, solicitation, or offer of any specific bank account, brokerage product, annuity, or other financial product. Hans Goldstein is an independent licensed insurance producer (NPN 20602398) appointed with multiple A-rated annuity carriers; he is not a bank employee, broker-dealer registered representative, or fiduciary investment advisor. No compensation has been received from any bank or credit union in connection with this review. Multi-year guaranteed annuities (MYGAs) referenced here are long-term insurance contracts with surrender charges and are not suitable for funds you may need before the end of the surrender period; they are not FDIC insured and are backed instead by the issuing carrier and the state guaranty association of the owner's state of residence (typically $250,000-$300,000 of present value). Always read the actual account disclosure or contract and consult a licensed advisor before committing funds.