Openbank Review: Santander’s 3.80% APY Savings Account

Openbank legitimacy and licensing

Yes. Openbank is not a separate bank. It is a division of Santander Bank, N.A., a Boston based national bank and FDIC member (certificate 29950), owned by Spain’s Banco Santander. Openbank launched its U.S. savings account in late 2024, and Santander said in May 2025 that it had passed 100,000 U.S. customers in its first six months.

Your deposits are insured up to $250,000 per depositor, per ownership category, but Openbank and Santander Bank balances count together toward that limit. Your account is governed by the Openbank Personal Deposit Account Agreement and the Openbank Digital Banking Agreement, both on openbank.us.

Openbank rate and the new customer boost

The High Yield Savings account paid a standard 3.80% APYAPY (annual percentage yield). The yearly return on a deposit including compounding, the standard number for comparing savings accounts. Compare high-yield savings accounts on all balances on October 12, 2026. Openbank says that’s 9 times the FDIC national savings average of 0.37% as of September 21, 2026. The rate is variable and can change at any time without notice.

New customers who open an account by November 3, 2026 get an extra 0.35% APY for six months, which is 4.15% at today’s standard rate. The boost stays on for the full six months even if the standard rate moves, then drops off. Accounts opened before September 23, 2026 are not eligible, and Openbank can end the offer early.

To compare fairly, look at the standard rate, not the boosted rate, since that’s what you’ll earn after six months.

How the Openbank account works

Openbank is app first. You apply on a smartphone that becomes your trusted device, and you confirm sign ins with your face or fingerprint. You need a U.S. mobile number and a U.S. residential address; the account is open in all 50 states and DC.

Money moves by transfer. You can link up to five outside personal accounts that you own. Outbound transfers to outside banks usually take 1 to 2 business days, with a 12:30 p.m. ET cutoff, and daily and rolling 30 day dollar limits shown in the app. Incoming wires are free. There are no checks, no debit card and no ATM access, so this works as a place to park savings, not to pay bills.

What the Santander and Webster Bank merger means for you

Santander completed its acquisition of Webster Bank on August 20, 2026 by merging Webster into Santander Bank, N.A. Santander says nothing changes right away for Openbank customers: same account numbers, routing number, app and sign in.

The FDIC point matters if you have money at both banks. Deposits held at Webster (including BrioDirect and HSA Bank) and at Santander (including Openbank) on August 20, 2026 are insured separately for six months, or until the first maturity after that for CDs. After that, they are added together under one $250,000 per category limit. If your combined balance will be above that, move money or restructure ownership categories before the grace period ends.

Openbank complaints and how to avoid problems

Openbank’s app is rated well in the App Store, but Trustpilot reviews of openbank.us are mostly one star. The common reports are accounts frozen or under review with little explanation, withdrawals that take several days, transfer limits, sign up glitches and repeat calls to support. There is no separate BBB or CFPB listing for Openbank; complaints are filed against Santander, whose deposit account complaints (1,191 to the CFPB since October 2023) cover the whole bank.

To lower the odds of a hold: fund from an account in your own name, keep your contact details current, expect identity checks on large or first transfers, and keep enough cash elsewhere to cover a week or two of bills. If a problem isn’t fixed, file with the CFPB or the OCC, which supervises national banks.

Closing your account and resolving disputes

Openbank doesn’t publish a closing fee in its fee schedule. Transfer your balance to a linked account first, then contact support through the app or at 833-833-8305 to close.

The deposit agreement requires binding individual arbitration for most disputes and waives class actions, with an exception for small claims. You can opt out by mailing a signed written notice within 30 days of opening to Santander Bank, Garnishment-Life Events, PO Box 847168, Boston, MA 02284-4168, with your name, address, account name and account number.

Who should pick something else

Openbank is a weak fit if you want one bank for checking and savings, need to deposit cash or checks, or want to start with less than $500. It’s also a poor place for money you might need the same day, since outbound transfers take 1 to 2 business days and accounts can be held for review. If you value phone and branch help, a credit union or a bank with branches may suit you better even at a lower rate.