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Here’s the Real Cost of Keeping $40,000 at a Big Bank in 2026

Your $40,000 can work harder than 0.01% APY, and the gap is about $1,596 a year if you can move it to 4.00%.

By Laura Hohenstein , Edited by Melinda Sineriz, ABFP®

Updated Sept. 16, 2026

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Quick Read

If you can move $40,000 to 4.00% APY, that's about $1,600 over one year, or roughly $133 a month.
The same $40,000 at a common big-bank savings rate of 0.01% APY earns about $4 a year, or about 33 cents a month.
That's a difference of about $1,596 a year on money you might not need to lock away.
At the national average savings rate of 0.38% (as of 06/15/26), $20,000 earns $76 a year. The same balance could earn up to nine times more with a SoFi Checking and Savings account. See SoFi®'s current rate.

A big bank can feel like the safest place to keep a large cushion. Your checking account is already there, the app is familiar, and moving $40,000 somewhere else sounds like one more financial chore you didn't ask for.

But in 2026, the real cost of leaving that money at a big bank is often the interest you don't see. If the account pays a tiny savings rate, convenience could be costing you more than a few coffee runs.

The useful move is to check your actual rate, price the difference, and decide which part of your $40,000 belongs in a high-yield savings account. You don't have to move every dollar to make the math work.

$20,000 earning nothing could mean $66 a month, gone. Move it to SoFi and earn up to 4.00% APY on Savings for up to 6 months.¹ Earn up to 4.00% Annual Percentage Yield (APY) on one SoFi Savings account with a 0.90% APY Boost (added to the 3.10% APY as of 5/28/26) for up to 6 months. Open your first SoFi Checking and Savings account and receive eligible direct deposits OR qualifying deposits of $5,000 every 31 days by 12/31/26. Rates are variable, subject to change. Terms apply at <a href="https://www.sofi.com/banking/#4">sofi.com/banking#4</a>. SoFi Bank, N.A. Member FDIC.

What $40,000 can lose

Start with the clean comparison. Say your big-bank savings account pays 0.01% APY, and say you find a high-yield savings account paying 4.00% APY, which plenty of high-yield savings accounts are offering right now.

Savings accounts advertise annual percentage yield, or APY, so the basic one-year estimate is simple: multiply the balance by the APY. With $40,000 at 4.00% APY for one year, the interest is about $1,600. With $40,000 at 0.01% APY for one year, the interest is about $4.

That leaves about $1,596 over one year that the big-bank account doesn't produce. Same $40,000, very different outcome.

If you have	One year at 0.38% APY (national average)	One year at 3.80% APY (example)	You are leaving behind
$10,000	$38	$380	$342
$25,000	$95	$950	$855
$40,000	$152	$1,520	$1,368
$50,000	$190	$1,900	$1,710
$100,000	$380	$3,800	$3,420

Here's why the low rate is easy to miss: 0.01% APY doesn't look painful on the screen. But on a $40,000 balance, the missed interest becomes real money, especially if the balance sits untouched for months.

Now find your real rate

Your own account might pay more or less than the 0.01% APY example, so check the number before you make a decision. Look on your monthly statement, the account details screen in online banking, or the current account terms page for your savings account.

Then run the same one-year estimate with your real APY:

$40,000 × your APY = one-year interest estimate

If your account pays 0.25% APY, $40,000 earns about $100 over one year. Compare that with $40,000 at 4.00% APY, which earns about $1,600 over one year. The number that matters is the difference between your current account and a higher-yield account you could actually use.

We did the research for you.

Having your checking and savings accounts with the same financial institution can make money management a lot simpler. SoFi® was our 2026 award winner for Best Checking and Savings Combo because it delivers on interest and additional features.

For example, you could earn up to 4.00% APY on your savings balance with direct deposit. (3.10% APY² New and existing Checking and Savings members who have not previously enrolled in Direct Deposit with SoFi are eligible to earn a cash bonus of either $50 (with at least $1,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more) OR $400 (with at least $5,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more). Cash bonus amount will be based on the total amount of Eligible Direct Deposit received within 25 calendar days of your first Eligible Direct Deposit of $1 or more. If you have satisfied the Eligible Direct Deposit requirements but have not received a cash bonus in your Checking account, please contact us at 855-456-7634 with the details of your Eligible Direct Deposit. Direct Deposit Promotion begins on 5/15/2026 and will be available through 12/31/26. See full bonus and annual percentage yield (APY) terms at <a href="https://www.sofi.com/banking/checking-offer/">sofi.com/banking/checking-offer/</a> with +0.90% APY Boost) for up to 6 Months on new accounts.¹ Earn up to 4.00% Annual Percentage Yield (APY) on one SoFi Savings account with a 0.90% APY Boost (added to the 3.10% APY as of 5/28/26) for up to 6 months. Open your first SoFi Checking and Savings account and receive eligible direct deposits OR qualifying deposits of $5,000 every 31 days by 12/31/26. Rates are variable, subject to change. Terms apply at <a href="https://www.sofi.com/banking/#4">sofi.com/banking#4</a>. SoFi Bank, N.A. Member FDIC. SoFi also offers more special features than any other account combo we looked at:

No account fees: No overdraft fees.³ Overdraft Coverage is a feature automatically offered to SoFi Checking and Savings account holders who receive at least $1,000 or more in Eligible Direct Deposits within a rolling 31 calendar day period on a recurring basis. Eligible Direct Deposit is defined on the SoFi Bank Rate Sheet, available at <a href="https://www.sofi.com/legal/banking-rate-sheet">https://www.sofi.com/legal/banking-rate-sheet</a>. Members enrolled in Overdraft Coverage may be covered for up to $50 in negative balances on SoFi Bank debit card purchases only. Overdraft Coverage does not apply to P2P transfers, bill payments, checks, or other non-debit card transactions. Members with a prior history of unpaid negative balances are not eligible for Overdraft Coverage. Eligibility for Overdraft Coverage is determined by SoFi Bank in its sole discretion. Members can check their enrollment status, if eligible, at any time by logging into their account through the SoFi app or on the SoFi website. No minimum balance fees. No monthly fees.⁴ We do not charge any account, service, or maintenance fees for SoFi Checking and Savings. We do charge transaction fees for outgoing wire transfers, Instant Transfers, and global remittance transfers. Our fee policy is subject to change at any time. See the SoFi Bank Fee Sheet for details at <a href="http://sofi.com/legal/banking-fees/">sofi.com/legal/banking-fees/</a>.

Get paid up to two days early: Feel the magic of payday up to two days earlier — automatically — when you set up direct deposit.⁵ Early access to direct deposit funds is based on the timing in which we receive notice of impending payment from the Federal Reserve, which is typically up to two days before the scheduled payment date, but may vary.

Access additional FDIC insurance up to $3M: Typically, single-member deposit accounts are federally insured up to $250,000. With SoFi, FDIC insurance up to $3 million on deposits is available through a seamless network of participating banks.⁶ SoFi Bank is a member FDIC and does not provide more than $250,000 of FDIC insurance per depositor per legal category of account ownership, as described in the FDIC’s regulations. Any additional FDIC insurance is provided by the SoFi Insured Deposit Program. Deposits may be insured up to $3M through participation in the program. See full terms at <a href="http://sofi.com/banking/fdic/sidpterms">SoFi.com/banking/fdic/sidpterms</a>. See list of participating banks at <a href="http://sofi.com/banking/fdic/participatingbanks">SoFi.com/banking/fdic/participatingbanks</a>.

Open an account with SoFi here.

Six months still adds up

Maybe you expect to use the money later in 2026, so a full-year comparison feels too big. Fair. Cut the timeframe in half, and the difference still matters.

For six months, $40,000 at 4.00% APY earns about $800 using a simple half-year estimate. The same $40,000 at 0.01% APY earns about $2 over six months. That's a six-month gap of about $798.

Temporary cash still has a price when the balance is large. But the six-month math only supports moving money that isn't needed for immediate payments. Rent, mortgage payments, tax bills, and autopay cash shouldn't be stuck in a transfer delay when the due date is close.

Some dollars should stay put

Before comparing accounts, split the $40,000 by when you'll need the money. The cash needed this month for rent, a mortgage, utilities, insurance, credit card autopay, taxes, or a medical deductible may belong where those payments already clear smoothly.

Emergency cash and short-term goal money are different. If you could wait for a transfer without causing a crisis, a high-yield savings account could fit money set aside for home repairs, a car fund, a vacation, or the part of your emergency fund you don't expect to use this week.

Be more careful with money already committed to a closing, tuition payment, contractor deposit, or car purchase in the next few weeks. The interest gain on a few weeks of yield might not be worth creating a timing problem with paperwork and deadlines.

And money meant for goals five or more years away might need a different plan entirely. A high-yield savings account is built for cash you want safe and reachable, so your real comparison could involve only part of the $40,000.

Your money is already saved. Now see how it could be earning you hundreds per year.

The friction has answers

Moving money can feel like a hassle, but most of the questions are practical rather than mysterious. Before you rely on a high-yield savings account, check these details:

Transfer timing: External transfers between institutions may not be instant, so money for a bill due tomorrow belongs somewhere easier to tap.
Emergency access: Some savings accounts connect to an external checking account, and that can mean an extra transfer step before you can spend the money.
Deposit insurance: Federal deposit insurance generally protects eligible deposits up to $250,000 per depositor, per insured institution, per ownership category.
Minimums: Many high-yield savings accounts don't require a huge opening deposit, but some higher rates come with minimum deposit or balance rules.
Rate changes: A high-yield savings rate is variable, so a 4.00% APY today could be lower or higher later if market rates shift.

Those details help determine whether the account works for the specific dollars you're moving.

The smart check is boring, which is good news for your money. Confirm how long transfers usually take, how you'd access cash in an urgent situation, whether the account has a minimum to earn the advertised APY, and where your balance sits relative to insurance limits. Then, after the first statement posts, confirm the interest paid lines up with the APY you expected.

Fees decide the net win

The rate gap is the headline number, but fees decide what you actually keep. Monthly maintenance charges, transfer charges, paper statement charges, and minimum balance requirements can chip away at the benefit if they apply to your account.

Say the high-yield option improves your interest by about $1,596 over one year on $40,000, but the account you choose has a $5 monthly charge. That fee costs $60 over one year, leaving a net gain of about $1,536. Still meaningful, but smaller.

Before you move money, review:

Monthly maintenance charges
Minimum balance rules
Transfer charges
Paper statement charges
Requirements to earn the stated APY

The clearest comparison is what lands in your account after costs. The biggest percentage on the page only helps if fees don't eat up the benefit.

Bottom line

If $40,000 is sitting at a big bank earning 0.01% APY, the one-year interest is about $4. At 4.00% APY, the same balance earns about $1,600.

Check your current APY, run the math on the portion of your $40,000 that doesn't need to cover immediate bills, and decide whether the dollar difference is worth the transfer steps. Doing nothing has a price, and on this balance, the price is about $1,596 a year.

Would You Spend Ten Minutes for $1,465?

That's roughly the year's difference on $40,000 between the national average and the up-to-4.00% rates available now. And ten minutes isn't a figure of speech. You just provide some information, like your name, address, Social Security number, and the account your deposit money's coming from. But rates are variable and follow the market, which is why the only number worth acting on is today's. Compare the current top accounts here.

Bank/Institution	APY Annual Percentage Yield	Bonus Offer	Open Account	Bonus Offer
2026 AWARD WINNER Best Checking and Savings Combo
5.0 FinanceBuzz writers and editors score products and companies on a number of objective features as well as our expert editorial assessment. Our partners do not influence our ratings.	4.00 % APY With $0 min. balanceEarn up to 4.00% Annual Percentage Yield (APY) on one SoFi Savings account with a 0.90% APY Boost (added to the 3.10% APY as of 5/28/26) for up to 6 months. Open your first SoFi Checking and Savings account and receive eligible direct deposits OR qualifying deposits of $5,000 every 31 days by 12/31/26. Rates are variable, subject to change. Terms apply at sofi.com/banking#4. SoFi Bank, N.A. Member FDIC.	Limited-Time Offer: +0.90% boost on Savings APY to up to 4.00% for up to 6 months on new accounts¹ <p>Earn up to 4.00% Annual Percentage Yield (APY) on one SoFi Savings account with a 0.90% APY Boost (added to the 3.10% APY as of 5/28/26) for up to 6 months. Open your first SoFi Checking and Savings account and receive eligible direct deposits OR qualifying deposits of $5,000 every 31 days by 12/31/26. Rates are variable, subject to change. Terms apply at <a href="https://www.sofi.com/banking/#4">sofi.com/banking#4</a>. SoFi Bank, N.A. Member FDIC.</p> + $50 or $400 Bonus with eligible direct deposit.² <p>New and existing Checking and Savings members who have not previously enrolled in Direct Deposit with SoFi are eligible to earn a cash bonus of either $50 (with at least $1,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more) OR $400 (with at least $5,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more). Cash bonus amount will be based on the total amount of Eligible Direct Deposit received within 25 calendar days of your first Eligible Direct Deposit of $1 or more. If you have satisfied the Eligible Direct Deposit requirements but have not received a cash bonus in your Checking account, please contact us at 855-456-7634 with the details of your Eligible Direct Deposit. Direct Deposit Promotion begins on 5/15/2026 and will be available through 12/31/26. See full bonus and annual percentage yield (APY) terms at <a href="https://www.sofi.com/banking/checking-offer/">sofi.com/banking/checking-offer/</a></p> Terms apply.	Learn More on SoFi's secure website Member FDIC	Limited-Time Offer: +0.90% boost on Savings APY to up to 4.00% for up to 6 months on new accounts¹ <p>Earn up to 4.00% Annual Percentage Yield (APY) on one SoFi Savings account with a 0.90% APY Boost (added to the 3.10% APY as of 5/28/26) for up to 6 months. Open your first SoFi Checking and Savings account and receive eligible direct deposits OR qualifying deposits of $5,000 every 31 days by 12/31/26. Rates are variable, subject to change. Terms apply at <a href="https://www.sofi.com/banking/#4">sofi.com/banking#4</a>. SoFi Bank, N.A. Member FDIC.</p> + $50 or $400 Bonus with eligible direct deposit.² <p>New and existing Checking and Savings members who have not previously enrolled in Direct Deposit with SoFi are eligible to earn a cash bonus of either $50 (with at least $1,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more) OR $400 (with at least $5,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more). Cash bonus amount will be based on the total amount of Eligible Direct Deposit received within 25 calendar days of your first Eligible Direct Deposit of $1 or more. If you have satisfied the Eligible Direct Deposit requirements but have not received a cash bonus in your Checking account, please contact us at 855-456-7634 with the details of your Eligible Direct Deposit. Direct Deposit Promotion begins on 5/15/2026 and will be available through 12/31/26. See full bonus and annual percentage yield (APY) terms at <a href="https://www.sofi.com/banking/checking-offer/">sofi.com/banking/checking-offer/</a></p> Terms apply.
4.8 FinanceBuzz writers and editors score products and companies on a number of objective features as well as our expert editorial assessment. Our partners do not influence our ratings.	4.00 % APY With $250+ monthly depositsLevelUp Rate of 4.00% APY applied to full balance with $250+ in deposits in Evaluation Period. Otherwise, accounts earn Standard Rate of 3.00% APY. LevelUp Rate applies to first two statement cycles. Rates variable & subject to change at any time. See terms: https://www.happen.com/legal/deposits/levelup-savings-t-and-cs	—	Learn More on Happen Bank's secure website Member FDIC	—
4.9 FinanceBuzz writers and editors score products and companies on a number of objective features as well as our expert editorial assessment. Our partners do not influence our ratings.	3.64 % APY With $1 min. balance⁷ <p>APY means Annual Percentage Yield. APY is accurate as of as of 09/01/26. This is a variable rate account, Interest rate and APY may change after initial deposit. Minimum initial deposit to open account and earn interest is $1.00.</p>	Limited-Time Offer: Use code STACK to earn a cash bonus based on your savings balance. Earn up to $50 for $10,000, $125 for $25,000, $250 for $50,000, $500 for $100,000, or $1,000 for $200,000 or more. Visit site for full details.⁸ <p>New customers only. Earn a cash bonus (the "Welcome Bonus") when you deposit and maintain funds with partner banks on the Raisin platform. Customers will receive a Welcome Bonus of $40 for depositing between $10,000 and $24,999; $100 for depositing between $25,000 and $49,999; $200 for depositing between $50,000 and $99,999; $425 for depositing between $100,000 and $199,999; and $900 for depositing $200,000 or more. If the Qualifying Deposit balance declines at any time during the maintenance period below the minimum required for a bonus tier, the customer will be placed in the bonus tier corresponding to the lowest Qualifying Deposit balance maintained during that period. </p><p>Savings + CD Boost: Customers eligible for the Welcome Bonus may earn an additional bonus by opening a product in a second product category. To qualify, customers must deposit at least $1,000 into the secondary product category within 14 days of their initial deposit and maintain balances over $1,000 in both categories through 90 days from the initial deposit date.</p><p>For the purposes of this promotion, High-Yield Certificates of Deposit constitute one product category; No-Penalty CDs and Callable CDs constitute a second product category; and Savings Accounts (including Money Market Deposit Accounts, High-Yield Savings Accounts, and Rate Lock Savings Accounts) constitute a third product category. Savings + CD Boost eligibility is determined by your Welcome Bonus tier: customers depositing between $10,000–$24,999 receive an additional $10; $25,000–$49,999 receive an additional $25; $50,000–$99,999 receive an additional $50; $100,000–$199,999 receive an additional $75; and $200,000 or more receive an additional $100. </p><p>The Savings + CD Boost is optional and paid in addition to the Welcome Bonus. To qualify for the Welcome Bonus and Savings + CD Boost, your first deposit must be initiated between September 1, 2026, and September 30, 2026, by 11:59 PM ET, and the promo code STACK must be entered at the time of sign-up. Only funds deposited within 14 days of the initial deposit date and maintained with partner banks on the Raisin platform for 90 days of the initial deposit date will be eligible for the Welcome Bonus and Savings + CD Boost. Bonus cash will be credited directly to your Cash Account within 30 days of meeting all qualifying terms. This offer is available to new customers only, is non-transferable, and may not be combined with any other bonus offers. Raisin may modify or end this offer at any time and may withhold or revoke bonuses in cases of fraud, abuse, or violation of these terms or Raisin’s Terms of Service.</p>	Learn More on Raisin's secure website Member FDIC	Limited-Time Offer: Use code STACK to earn a cash bonus based on your savings balance. Earn up to $50 for $10,000, $125 for $25,000, $250 for $50,000, $500 for $100,000, or $1,000 for $200,000 or more. Visit site for full details.⁸ <p>New customers only. Earn a cash bonus (the "Welcome Bonus") when you deposit and maintain funds with partner banks on the Raisin platform. Customers will receive a Welcome Bonus of $40 for depositing between $10,000 and $24,999; $100 for depositing between $25,000 and $49,999; $200 for depositing between $50,000 and $99,999; $425 for depositing between $100,000 and $199,999; and $900 for depositing $200,000 or more. If the Qualifying Deposit balance declines at any time during the maintenance period below the minimum required for a bonus tier, the customer will be placed in the bonus tier corresponding to the lowest Qualifying Deposit balance maintained during that period. </p><p>Savings + CD Boost: Customers eligible for the Welcome Bonus may earn an additional bonus by opening a product in a second product category. To qualify, customers must deposit at least $1,000 into the secondary product category within 14 days of their initial deposit and maintain balances over $1,000 in both categories through 90 days from the initial deposit date.</p><p>For the purposes of this promotion, High-Yield Certificates of Deposit constitute one product category; No-Penalty CDs and Callable CDs constitute a second product category; and Savings Accounts (including Money Market Deposit Accounts, High-Yield Savings Accounts, and Rate Lock Savings Accounts) constitute a third product category. Savings + CD Boost eligibility is determined by your Welcome Bonus tier: customers depositing between $10,000–$24,999 receive an additional $10; $25,000–$49,999 receive an additional $25; $50,000–$99,999 receive an additional $50; $100,000–$199,999 receive an additional $75; and $200,000 or more receive an additional $100. </p><p>The Savings + CD Boost is optional and paid in addition to the Welcome Bonus. To qualify for the Welcome Bonus and Savings + CD Boost, your first deposit must be initiated between September 1, 2026, and September 30, 2026, by 11:59 PM ET, and the promo code STACK must be entered at the time of sign-up. Only funds deposited within 14 days of the initial deposit date and maintained with partner banks on the Raisin platform for 90 days of the initial deposit date will be eligible for the Welcome Bonus and Savings + CD Boost. Bonus cash will be credited directly to your Cash Account within 30 days of meeting all qualifying terms. This offer is available to new customers only, is non-transferable, and may not be combined with any other bonus offers. Raisin may modify or end this offer at any time and may withhold or revoke bonuses in cases of fraud, abuse, or violation of these terms or Raisin’s Terms of Service.</p>

Limited-Time Offer

2026 AWARD WINNER Best Checking and Savings Combo

SoFi Checking and Savings

5.0

Open Account on SoFi's secure website, Member FDIC

APY

4.00%

Minimum Balance for APY

Bonus Offer

Up to $400

Why We Like It

Limited-Time Offer: Earn a $50 or $400 cash bonus² New and existing Checking and Savings members who have not previously enrolled in Direct Deposit with SoFi are eligible to earn a cash bonus of either $50 (with at least $1,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more) OR $400 (with at least $5,000 total Eligible Direct Deposits received within 25 calendar days of your first Eligible Direct Deposit of $1 or more). Cash bonus amount will be based on the total amount of Eligible Direct Deposit received within 25 calendar days of your first Eligible Direct Deposit of $1 or more. If you have satisfied the Eligible Direct Deposit requirements but have not received a cash bonus in your Checking account, please contact us at 855-456-7634 with the details of your Eligible Direct Deposit. Direct Deposit Promotion begins on 5/15/2026 and will be available through 12/31/26. See full bonus and annual percentage yield (APY) terms at <a href="https://www.sofi.com/banking/checking-offer/">sofi.com/banking/checking-offer/</a> plus a boosted 4.00% APY¹ Earn up to 4.00% Annual Percentage Yield (APY) on one SoFi Savings account with a 0.90% APY Boost (added to the 3.10% APY as of 5/28/26) for up to 6 months. Open your first SoFi Checking and Savings account and receive eligible direct deposits OR qualifying deposits of $5,000 every 31 days by 12/31/26. Rates are variable, subject to change. Terms apply at <a href="https://www.sofi.com/banking/#4">sofi.com/banking#4</a>. SoFi Bank, N.A. Member FDIC. on Savings for up to 6 months when you open a new account and set up eligible direct deposits. Terms apply.
No account, overdraft, or monthly fees⁴ We do not charge any account, service, or maintenance fees for SoFi Checking and Savings. We do charge transaction fees for outgoing wire transfers, Instant Transfers, and global remittance transfers. Our fee policy is subject to change at any time. See the SoFi Bank Fee Sheet for details at <a href="http://sofi.com/legal/banking-fees/">sofi.com/legal/banking-fees/</a>.
Get your paycheck up to two days early with direct deposit⁵ Early access to direct deposit funds is based on the timing in which we receive notice of impending payment from the Federal Reserve, which is typically up to two days before the scheduled payment date, but may vary.
Access additional FDIC insurance up to $3 million⁶ SoFi Bank is a member FDIC and does not provide more than $250,000 of FDIC insurance per depositor per legal category of account ownership, as described in the FDIC’s regulations. Any additional FDIC insurance is provided by the SoFi Insured Deposit Program. Deposits may be insured up to $3M through participation in the program. See full terms at <a href="http://sofi.com/banking/fdic/sidpterms">SoFi.com/banking/fdic/sidpterms</a>. See list of participating banks at <a href="http://sofi.com/banking/fdic/participatingbanks">SoFi.com/banking/fdic/participatingbanks</a>.
Excellent 4.3/5

Open Account on SoFi's secure website, Member FDIC