Capital One 360 Performance Savings vs Marcus: which high-yield savings account fits?
Marcus shows a higher advertised APY than Capital One today. Whether that 0.30-point gap matters depends on how you move money. We checked both bank pages on November 3, 2026.
Our take (checked Nov 2026)
On November 3, 2026, Marcus advertised 3.50% APY and Capital One 360 Performance Savings advertised 3.20% APY. Both are variable, both list no monthly fee, and both list no minimum balance. On $10,000 held for a full year at today's rates, that is about $30 more interest at Marcus. If the rate gap is your main concern, Marcus fits better. If you already bank at Capital One, want to open or manage the account in person at a branch or Café, or want the savings and checking balances in one app, Capital One may be easier to live with. Neither fits if you need ATM cash straight from savings: Capital One says you cannot withdraw from this account at an ATM, and we could not confirm any ATM access for Marcus. Both rates can change without notice, so treat the gap as a snapshot, not a promise.
| Capital One 360 Performance Savings | Marcus by Goldman Sachs | |
|---|---|---|
| Advertised APY | 3.20%, variable, effective 11/3/2026 [1] | 3.50%, variable, shown for 11/3/2026 [2] |
| Same rate on all balances? | Yes: one rate on all balances [1] | Not published in the page text we could read |
| Monthly fee | None [1] | None [2] |
| Minimum balance | None to open or keep [1] | No minimum deposit [2] |
| How interest is credited | Compounded and credited monthly [1] | Not published in the page text we could read |
| ATM withdrawals from savings | Not allowed; move money to checking first [1] | Not published in the page text we could read |
| Where to open it | Online, mobile app, branch or Café [1] | Online; a Goldman Sachs Bank USA product [2] |
| Deposit insurance | FDIC up to allowable limits [1][3] | FDIC member bank [2][3] |
Start with the question that decides it: do you need the extra 0.30 points?
Most people compare these two accounts by APY alone. That is a fair first cut. APY stands for annual percentage yield. It is the interest you would earn over one year, with compounding included, if the rate never changed [1].
Marcus is ahead by 0.30 percentage points today. The size of that edge in dollars depends only on your balance. At $1,000 the gap is about $3 a year. At $10,000 it is about $30. At $50,000 it is about $150. So the first question is not which bank is better. It is how much you will keep in savings, and for how long.
Question two: how will you get the money out?
A savings account is only useful if you can reach the cash when you need it. Capital One is clear on this point. You can withdraw from 360 Performance Savings online or at a branch, but not at an ATM. To use an ATM, you first move the money to a checking account [1].
That is a small delay for an emergency fund, and some people prefer it because it keeps savings out of daily spending. If you want a card tied directly to the savings balance, this account does not offer one. We did not find an ATM or debit card claim on the Marcus page text we could read, so check Marcus directly before you rely on it for cash access.
Question three: do you want an in-person option?
Capital One lets you open the account online, in the mobile app, or at a Capital One location. It says opening takes about five minutes and that you have 60 days after approval to fund the account [1]. You will need personal details such as your name, address, Social Security or tax ID number, income and employment information [1].
Marcus is run as an online savings product. Deposit products come from Goldman Sachs Bank USA [2]. If face-to-face help matters to you, that is a real difference. If you never visit a branch anyway, it matters less.
Question four: how safe is the money?
Both accounts sit at FDIC-insured banks. The FDIC says deposits are automatically insured to at least $250,000 at each FDIC-insured bank [3]. Capital One adds one detail worth knowing: its accounts opened on or after May 18, 2025 are counted together with your other Capital One deposit accounts when working out your coverage [1]. If you hold large balances at one bank across several accounts, add them up. Amounts above the limit are not covered.
Question five: how long will the rate stay put?
Neither rate is locked. Capital One calls its rate variable and says it can change at any time before or after you open the account [1]. Marcus says the same thing in its disclosure [2]. A rate lead today can disappear next month. If you want a fixed return for a set period, a certificate of deposit works differently and has its own early-withdrawal terms. That is outside this comparison.
Worked example
Worked example: $10,000 for 12 months
Inputs
- Starting balance: $10,000.00
- Capital One APY: 3.20% (variable)
- Marcus APY: 3.50% (variable)
- No deposits or withdrawals, rates unchanged for 12 months
- Interest is rounded to the nearest cent
Steps
- Year-end balance = $10,000 x (1 + APY), because APY already includes compounding.
- Capital One: $10,000 x 1.0320 = $10,320.00, so interest is $320.00.
- Marcus: $10,000 x 1.0350 = $10,350.00, so interest is $350.00.
- Gap = $350.00 - $320.00 = $30.00 over 12 months.
- Month-by-month view, to see how monthly crediting works: monthly rate = (1 + APY)^(1/12) - 1. For 3.20% that is about 0.2628%, so month one interest on $10,000 is $26.28 and the balance is $10,026.28. For 3.50% it is about 0.2871%, so month one interest is $28.71 and the balance is $10,028.71.
- After three months, Capital One would reach about $10,079.06 and Marcus about $10,086.37, a $7.31 difference.
Result: Marcus earns about $30.00 more than Capital One on $10,000 over a year at today's advertised rates. That is about $2.50 a month.
For a $10,000 emergency fund, the gap is real but modest. It is worth more as the balance grows, and it only lasts while the rates stay as they are. Taxes on interest are not included. The rate on either account can fall, and the order can flip.
Risks and limits
- Both APYs are variable. Either bank can change its rate at any time, so today's lead is not a forecast.
- Capital One does not allow ATM withdrawals from this account. Moving money to checking first adds a step when you need cash fast.
- We could not read Marcus's compounding schedule, transfer limits or ATM terms from its page text. Check them before you open the account.
- FDIC cover is limited. Balances above the insured limit at one bank are not protected by the FDIC.
- Interest is generally taxable income. This guide is education, not tax or financial advice.
- Capital One says you may be denied for the account based on varied factors [1].
Frequently asked
Is Marcus or Capital One 360 better for a high-yield savings account?
On November 3, 2026, Marcus advertised the higher APY, 3.50% against 3.20%. That is about $30 more a year on $10,000. Capital One offers in-person opening and a link to a checking account. The right pick depends on balance size and how you reach your cash.
Do Marcus and Capital One charge monthly fees on savings?
Neither lists a monthly fee for these savings accounts. Capital One says there is no monthly cycle service charge and no minimum balance [1]. Marcus lists no fees and no minimum deposit [2]. Always read the fee schedule before you open an account.
Can I take cash from Capital One 360 Performance Savings at an ATM?
No. Capital One says you can withdraw online or at a branch but not at an ATM. You would transfer to a checking account first [1].
Are the rates fixed?
No. Both are variable and can change at any time, including after you open the account [1][2].
Is my money insured at both banks?
Both are FDIC-insured banks. The standard cover is at least $250,000 per depositor at each insured bank, and ownership categories can change the total [3].
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