Best Savings Account Rates We Verified (Sept 15, 2026)

Of the five savings accounts we could verify directly on bank and credit union pages on September 15, 2026, the highest rate available on an uncapped balance was the Marcus by Goldman Sachs Online Savings Account at 3.40% APY, with marcus.com stating the yield was accurate as of September 13 and September 14, 2026. The eye-catching 5.00% APY at Digital Federal Credit Union applies only to the first $1,000 in a Primary Savings account, so for a $25,000 emergency fund it adds roughly $16 a year on top of a 3.40% account rather than transforming the return. This is a scoped comparison of five accounts we checked on issuer product pages and disclosures, not a market-wide ranking, and not a product test: we did not open, fund or use any of these accounts, and every rate here is variable and can change the day after we looked.

Quick answer

• Best uncapped rate we verified: Marcus Online Savings at 3.40% APY, no minimum deposit and no fees per marcus.com, with maximum balance limits noted in the bank's own disclosure.
• Best capped rate we verified: DCU Primary Savings at 5.00% APY on balances up to $1,000, $5 minimum to open, credit union membership required. The rate on balances above $1,000 is much lower and we could not confirm the exact fallback figure on DCU's own product page.
• Branch access trade-off: Capital One 360 Performance Savings showed 3.00% APY on all balances, variable and effective 9/11/2026, with no fees and no minimum balance.
• Check the date on the page, not the roundup: Western Alliance Bank's high-yield savings page carried an APY described as accurate as of January 8, 2026 while citing FDIC national-average data from August 17, 2026, so we omitted its rate instead of repeating a stale number.
• Separate promotions from the ongoing rate: Marcus discloses a 3-month promotional APY increase of 1.00% on top of the standard rate, after which the account earns the then-current standard APY.

How this comparison was built and what we left out

We checked product pages and disclosure footnotes at Goldman Sachs Bank USA (Marcus), Capital One, Ally Bank, Digital Federal Credit Union and Western Alliance Bank, using the versions surfaced in searches on September 15, 2026. A rate went into the table only if the institution's own page stated it along with an as-of date. Where a page stated conditions but not a usable current rate, we left the rate out rather than fill a row.

That rule excluded some of the largest advertised numbers. NerdWallet's September 2026 high-yield savings roundup headlines rates up to 4.21% and lists SoFi Checking and Savings at up to 4.00% APY, a level that hybrid checking-and-savings products typically condition on qualifying direct deposit. CNBC Select's September 2026 piece reports DCU Primary Savings at 5.50% APY on up to $1,000 with a much lower blended rate above that, while DCU's own Primary Savings page advertised 5.00% on the first $1,000 when we looked. We used the issuer figure and flagged the discrepancy instead of averaging the two.

One piece of context for judging any of these numbers: the FDIC's National Rates and Rate Caps page explains that its published savings national rate is based on the $2,500 product tier, while money market and CD averages blend the $10,000 and $100,000 tiers. The same FDIC material describes the national rate cap for non-maturity deposits as the higher of the national rate plus 75 basis points or the federal funds rate plus 75 basis points, a supervisory limit that applies to institutions that are less than well capitalized rather than a ceiling on the whole market. Marcus's page describes its rate as 8 times the national average and cites FDIC data accurate as of August 17, 2026; that multiple is the bank's marketing comparison, not an FDIC statement about Marcus.

The five accounts we verified, with dates and conditions

Reported facts in that table come from the institutions' own pages except where another publisher is named. Nothing in it reflects our own testing or an account we hold.

Worked example: $25,000 held for 12 months

APY already expresses a year of compounding, so applying it once to a balance that sits untouched for a year is the right arithmetic for comparison. These are our calculations from the rates above, with no deposits or withdrawals during the year, and they exclude income tax on the interest and any fees.

• Marcus at 3.40%: $25,000 x 1.0340 = $25,850, or $850 of interest.
• Capital One or Ally at 3.00%: $25,000 x 1.0300 = $25,750, or $750. The 40 basis point gap is worth $100 a year on this balance.
• Split: $1,000 at DCU's 5.00% plus $24,000 at 3.40%: $1,000 x 1.05 = $1,050 and $24,000 x 1.0340 = $24,816, for $25,866 and $866 of interest. That is $16 more than keeping the whole $25,000 at 3.40%, in exchange for joining a credit union and managing a second login.

Now the promotion, kept separate on purpose. Marcus discloses a 3-month promotional APY increase of 1.00% on top of the stated Online Savings Account APY, after which the account earns the then-current standard APY. Holding the standard rate at 3.40% as an assumption, $25,000 grows at an effective 4.40% for three months, which is $25,000 x 1.0440 raised to the 0.25 power, or $25,270.58. The remaining nine months at 3.40% give $25,270.58 x 1.0340 raised to the 0.75 power, or $25,912.27. That is about $912 of interest, roughly $62 more than the standard-rate year. Marcus's own referral page states that with one referral in a year, assuming the standard APY is unchanged, the account would earn a combined 3.65% APY, and $25,000 x 1.0365 equals $25,912.50, which reconciles with our figure to within a rounding difference. The important part for planning is what happens in month 13: the balance reverts to the standard rate, and that rate is variable.

Total cash committed, including linked balances

The advertised APY is only half of the question. The other half is how much money you must park, and where, to earn it.

None of the five accounts we verified required a minimum balance in a linked checking account. Marcus, Capital One and Ally each stated no minimum balance to earn the rate on their pages. Western Alliance required $500 to open and only one cent to earn the advertised APY, but its high-yield savings works through a designated linked account, and its disclosure says ACH funds initiated from that account are generally available for withdrawal five business days later. If the money is your emergency fund, that funding path is a real constraint regardless of the rate.

DCU is where the committed-cash math bites in a different way. The 5.00% tier stops at $1,000, so the account cannot hold an emergency fund at that yield; it is a small bonus alongside a primary account. DCU's own pages also tie separate benefits to activity rather than balance: early access to a paycheck requires a recurring direct deposit, and up to $300 a year in ATM fee reimbursements requires a recurring direct deposit of at least $500 of income per calendar month plus at least five qualifying transactions per month. Those are conditions on behavior, not a balance floor, but they still determine whether the advertised package is what you actually get.

When you evaluate a hybrid checking-and-savings product advertising 4% or more, apply the same test: add the savings balance to any required checking balance, divide the annual interest by that combined total, and compare that number with a no-strings 3.40%. A high rate on part of your cash plus zero on the rest is often worse than a middling rate on everything.

Mistakes that quietly cost savers money

• Treating a roundup headline as your rate. A number like up to 4.21% describes the top of a list under stated conditions. Confirm the figure on the bank's page, with its as-of date, before moving money.
• Ignoring the observation date. Western Alliance's page paired an APY dated January 8, 2026 with an FDIC footnote dated August 17, 2026. A rate eight months old tells you nothing about today.
• Assuming the rate is fixed. DepositAccounts' rate-change tracker recorded Ally cutting its savings APY to 3.20% from 3.30% on February 20, 2026, and Ally's own page displayed 3.00% in mid-September 2026. Capital One's 360 Performance Savings was flagged as unchanged at 3.00% on September 9, 2026 by the same tracker. Variable means variable, in both directions.
• Chasing a capped tier with a large balance. The DCU cap turns a 5.00% headline into about $50 a year, which is why the split in our example gained $16 rather than hundreds.
• Overlooking transaction and transfer rules. Ally's page notes a limit of 10 withdrawals per statement cycle on savings. Marcus states that transfers of $100,000 or less submitted by 12 pm ET on a business day are processed that day. If you need same-week liquidity, those mechanics matter as much as 40 basis points.
• Comparing interest instead of APY. Yahoo Finance reports that Capital One compounds monthly rather than daily, unlike some rivals. APY already incorporates compounding frequency, which is exactly why it is the comparison metric.

What to do next

Open the product page and the rate disclosure for the account you currently hold, write down today's APY and the as-of date shown there, then compare it with the 3.40% Marcus rate dated September 13-14, 2026 in this guide. If your own bank is more than about 40 basis points behind, that gap is worth $100 a year per $25,000, and the only action that captures it is moving the balance.