money/ by ilyushailyusha.xyz ↗

INSIGHTS / HIGH BALANCE

Money left on the table.

01 / BY DOLLAR IMPACT

Cash, tax, credit.

Worked out on $50,000, $250,000, and $1,000,000

  1. 01

    Cash

    Parking $1,000,000 at the national-average savings rate gives up $39,250 a year.

    The FDIC puts the national average savings rate at 0.37% (as of Sep 21, 2026). Elevault pays 4.34% with no subscription or promo, but interest only on balances up to $500,000, and funding from a linked bank account is capped at $2,500 a day (Elevault says its VaultKeys account and routing numbers can move more, with your other bank setting the limit). Above that earn cap, the next plain no-strings rate on this site is Pibank at 4.25%.

    $50,000 → $1,985/yr · $250,000 → $9,925/yr · $1,000,000 → $39,250/yr
    Elevault linked-account funding: $250,000 takes 100 days at $2,500/day · $500,000 takes 200 days
    On $1,000,000: first $500,000 at 4.34%, rest at Pibank 4.25% → $42,950/yr vs $3,700 at the average

    The catch: Savings rates are variable. Elevault balances above $500,000 earn no interest on the excess. The FDIC figure is an average of all banks, so a given big bank may pay more or less. Check each bank’s own deposit and balance limits before moving a large sum.

    Source: FDIC National Rates and Rate Caps ↗ · Elevault rate page ↗ · Pibank rate page ↗

  2. 02

    Market

    The Fed funds rate is 3.88%; the average savings account pays 0.37%: $35,100 a year of gap on $1,000,000.

    Effective federal funds was 3.88% on Oct 1, 2026 (target 3.75–4.00%). That is what banks earn on overnight reserves. The FDIC national average savings rate is 0.37%. Elevault passes through 112% of the funds rate; Ally passes 80%; the average account passes 10%.

    $50,000 → $1,755/yr · $250,000 → $8,775/yr · $1,000,000 → $35,100/yr
    Elevault 4.34% vs Ally 3.10% on $250,000 → $10,850 vs $7,750 a year
    Every 0.25-point Fed move, if passed on in full, is $625/yr on $250,000 · $2,500/yr on $1,000,000

    The catch: This is a pricing snapshot, not a forecast. Banks choose how much of a Fed move to pass on, and how fast. You cannot earn the funds rate directly in a retail savings account.

    Source: FRED, Federal Funds Effective Rate (DFF) and target range (DFEDTARL, DFEDTARU) ↗ · FDIC National Rates and Rate Caps ↗ · Ally rate page ↗

  3. 03

    Credit

    An unlimited 2% card pays $10,000 more a year than 1% on $1,000,000 of spend—category 5% caps do not.

    Citi Double Cash and similar flat 2% cards pay 2% with no category cap. Quarterly 5% rotating categories on this site top out around $1,500 of spend ($75 at 5%), which is noise next to five-figure cash gaps on large balances. At high spend, the uncapped everyday rate is what scales.

    $100,000 spend → 2% = $2,000 · 1% = $1,000 · extra $1,000 · $250,000 spend → 2% = $5,000 · 1% = $2,500 · extra $2,500 · $1,000,000 spend → 2% = $20,000 · 1% = $10,000 · extra $10,000
    Discover Oct–Dec 2026 5% cap: $1,500 → $75 that quarter if activated

    The catch: Cash back only helps if you pay the balance in full. Some merchants surcharge cards. Foreign-transaction fees and annual fees change the net. This is rewards math, not a savings rate.

    Source: Cards on this site · Citi Double Cash issuer page ↗

  4. 04

    Tax

    In California, 26-week T-bills beat the best plain savings rate by $3,736 a year on $1,000,000 after state tax.

    Treasury bill interest is exempt from state and local income tax; savings interest is not. At California's 9.3% bracket, the 4.31% 26-week bill is worth 4.75% in taxable-savings terms, while Elevault's 4.34% keeps only 3.94% after state tax.

    Yields on Oct 8, 2026: 4-week 4.04% · 13-week 4.15% · 26-week 4.31%
    $50,000 → $187/yr · $250,000 → $934/yr · $1,000,000 → $3,736/yr
    No-income-tax state on $250,000: bill $10,775 vs savings $10,850 → −$75

    The catch: Federal tax applies to both. The 9.3% bracket covers 2025 single filers with taxable income of $72,724–$371,479. Bill yields are fixed only until maturity; you must roll them yourself; a bill sold early gets the market price. A bill's coupon-equivalent yield and a bank APY are close but not identical measures. Buying $1,000,000 of bills needs a brokerage or TreasuryDirect plan and settlement cash.

    Source: TreasuryDirect, Treasury Bills ↗ · U.S. Treasury Daily Treasury Bill Rates (coupon-equivalent) ↗ · California FTB, 2025 Tax Rate Schedules (Schedule X) ↗

  5. 05

    Structure

    Above $250,000, insurance is a structure problem: a couple can cover $1,000,000 at one bank—or use more banks and NCUA credit unions.

    FDIC insurance is $250,000 per depositor, per insured bank, per ownership category. Two individual accounts plus one joint account are three separate pots ($1,000,000 for a couple). Trust accounts with beneficiaries add up to $1,250,000 more per owner under current FDIC rules. NCUA share insurance at federally insured credit unions uses the same $250,000 standard per member-owner, per credit union, per ownership category.

    Partner A single: $250,000 · Partner B single: $250,000 · Joint: $250,000 × 2 = $500,000 → $1,000,000 at one bank
    On $250,000: one ownership category is enough · On $1,000,000: need categories, a second bank/credit union, or both
    Elevault is FDIC via Southern Bancorp; balances there aggregate with any other deposits at the same bank

    The catch: Fintech apps with pass-through coverage depend on partner-bank records. Balances at the same bank through different apps add together. NCUA covers federally insured credit unions only. Confirm title and beneficiary setup before relying on a category.

    Source: FDIC, Deposit Insurance At A Glance ↗ · NCUA, Share Insurance Coverage ↗ · FDIC, Understanding deposit insurance ↗

Stock notes moved to Markets.

General information, not financial, tax, or investment advice. Numbers were checked on Oct 9, 2026; rates, filings, and prices change, so confirm with the source before you move money.