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Banking

What is a bank sweep account?

Quick Answer

A sweep account automatically moves idle checking balances into a higher-yield vehicle each night — a money market fund, T-bills, or an FDIC sweep network — and reverses it back next morning. Banks use them to deliver yield without daily work.

How a sweep account moves idle checking cash to a money market fund nightly.
Warren Team
Updated April 26, 2026
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Important Disclaimer:

The information provided is for educational purposes only and should not be considered as personalized financial advice. Warren is a registered investment advisor. Past performance does not guarantee future results. Please consult with a qualified financial advisor before making investment decisions.

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