Betterment Cash Reserve review

Updated September 28, 2026 · SumCue Editorial Team · Facts checked September 26, 2026

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Our verdict

Betterment Cash Reserve holds a cash management balance with no minimum, so it suits US savers who park spending money inside a wider investing platform rather than chasing a term deal. Entry starts at $10 and withdrawals are unlimited, but the variable rate means the headline figure can move with the market.

Key facts

Best for
Parking a working cash balance inside a US investing platform.
Headline rate
3.5%↗
Rate type
Variable↗
Minimum deposit
$10↗
Deposit protection
FDIC up to USD 250,000↗
Access terms
Cash Reserve: no minimum balance ($10 minimum deposit), unlimited withdrawals, sweep cash held at FDIC-insured program banks up to $8M (joint)↗
Monthly fee
$0↗
Account kind
Cash management↗
Legal entity
MTG LLC↗
Headquarters
United States↗
Founded
2008↗
Support channels
Phone, Help-centre, Email, Chat↗
Pricing model
No monthly fee
Official website
betterment.com

Facts checked September 26, 2026, 5 sources

Apps and profiles

Pros and cons

Pros

  • A deposit of $10 is the only entry barrier: no minimum balance and unlimited withdrawals once you are in.
  • Cash is swept across a network of FDIC-insured program banks, with FDIC up to USD 250,000 behind the deposits.
  • Licences cover the group: SEC (investment adviser), FINRA (broker-dealer, Betterment Securities) and SIPC member 51906.
  • Help runs on phone, help centre and email.

Cons

  • A variable rate, so the income on 3.5% can fall when the market softens.
  • Built on US deposit protection, FDIC up to USD 250,000, so readers outside US gain less from it.
  • Finteres advertises a wider spread at 0% to 36%, which pulls headline shoppers elsewhere.
Betterment Cash Reserve

Ready to try Betterment Cash Reserve?

Scored 9.0 / 10 by SumCue.

Who it suits

  • Readers who already hold investments with Betterment, since the adviser and brokerage licences sit in the same group.
  • Anyone moving money in and out often, because the access terms allow unlimited withdrawals and no minimum balance.
  • Savers who want the headline rate near the top of the cash-management field, where the median is 3.46%.

Who should look elsewhere

  • Savers chasing the widest advertised range: Finteres lists 0% to 36%.
  • Readers hoping to beat 3.5% elsewhere: bunq pays 3.01% and Wise 3.29%, so neither improves on it.

How Betterment Cash Reserve compares

Where Betterment Cash Reserve is available

Available
United States
Licence in United States
SEC (investment adviser), checked September 26, 2026
Licence in United States
FINRA (broker-dealer, Betterment Securities), checked September 26, 2026
Licence in United States
SIPC (SIPC member 51906), checked September 26, 2026

Countries from the brand (Source, checked September 26, 2026)

Frequently asked questions

What rate does Betterment Cash Reserve pay?+

Cash Reserve pays a variable rate of 3.5%, so the figure follows the market instead of being locked in. Cash is swept to a network of FDIC-insured program banks rather than held by Betterment, and the rate is set by what those banks pass on. Wise at 3.29% gives a second reading.

What does it cost to keep money in Cash Reserve?+

There is no monthly charge: the fee is $0 and the pricing model is no monthly fee. Opening the account takes a deposit of $10. The group also holds an investment adviser registration with the SEC and a broker-dealer registration with FINRA, so the running costs stay at the floor and the rate is the thing to compare.

How is my money protected?+

Deposits sit with FDIC-insured program banks and FDIC up to USD 250,000 applies, while the brokerage side runs through SIPC member 51906. The group also carries an investment adviser registration with the SEC and a broker-dealer registration with FINRA under Betterment Securities. Joint accounts carry a higher protection limit than single ones.

Can I take money out whenever I like?+

Yes. The access terms allow unlimited withdrawals, and there is no minimum balance to keep the account open. Cash is swept to FDIC-insured program banks and comes back as needed, which suits a working balance rather than a locked deposit. A deposit of $10 is the only stated threshold.

How much do I need to open the account?+

The minimum deposit is $10, and once the money is in there is no ongoing minimum balance. The account is listed as cash management, so it behaves like a cash pot attached to the platform rather than a savings term product. Anyone adding money regularly can start small and top up as income arrives.

Who actually runs the account?+

The legal entity is MTG LLC, based in the United States and founded in 2008. Regulation comes from three US licences: an investment adviser registration with the SEC, a broker-dealer registration with FINRA covering Betterment Securities, and SIPC member 51906. That structure matters if you also hold investments in the same group.

How do I get help if something goes wrong?+

Support runs on phone, help centre and email, which covers several ways to reach the team. Questions about the sweep to program banks or the rate fit a written answer, while balance issues usually go to phone or chat. The adviser and brokerage licences sit behind the same group, so escalation stays within one firm.

How does the rate compare with other cash management options?+

Cash Reserve pays 3.5%, above 3.29% at Wise and 3.01% at bunq, while Finteres advertises 0% to 36%. Against a cash-management median of 3.46%, the rate sits at the top of the usual band rather than above it.

Sources

  • sipc.org/list-of-members checked September 26, 2026

    Backs: Legal entity, Licences

    “reportingFileNumber=51906; name=MTG LLC”

  • en.wikipedia.org/wiki/Betterment_(company) checked September 26, 2026

    Backs: Founded

    “Betterment was founded in 2008 in New York City by Jon Stein, a Columbia Business School MBA graduate, and Eli Broverman”

  • betterment.com/cash-reserve checked September 26, 2026

    Backs: Access terms, Account kind, Deposit protection, Headline rate, Minimum deposit, Rate type

    “Unlimited withdrawals. No fees. ... No minimum balance. ... you can grow your money with us for as little as $10.”

  • betterment.com/contact checked September 26, 2026

    Backs: Headquarters, Support channels

    “Betterment LLC 450 West 33rd Street, FL 11 New York, NY 10001”

  • betterment.com/pricing checked September 26, 2026

    Backs: Pricing model, Monthly fee

    “No monthly management fees on cash.”

Compiled from 5 source pages, checked September 26, 2026. We did not open an account.

Not confirmed yet: Term.

Betterment Cash Reserve

Betterment Cash Reserve

Parking a working cash balance inside a US investing platform.

9.0/10See alternatives