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Check 21 Act

What Is the Check 21 Act?

The Check Clearing for the 21st Century Act, commonly called the Check 21 Act, is a U.S. law that allows financial institutions to process checks electronically using digital images instead of the original paper checks.

The law modernized the check processing system and made electronic check clearing possible.

Why It Matters

Before the Check 21 Act, physical checks had to be transported between financial institutions for processing. This created delays and logistical challenges.

The Check 21 Act allows faster processing by enabling digital check images to replace physical checks.

How the Check 21 Act Works

When a check is deposited, the bank may create a digital image of the check.

The process may involve:

  • scanning the check
  • transmitting the digital image
  • processing the transaction electronically
  • generating a substitute check if needed

This system reduces processing time and transportation costs.

Check 21 Act vs Traditional Check Clearing

  • Traditional check clearing required transporting paper checks.
  • The Check 21 Act allows digital images to represent the check during processing.

FAQs About the Check 21 Act

Does the Check 21 Act eliminate paper checks?
No, but it allows electronic processing of check images.

What is a substitute check?
A legally recognized paper copy created from the digital check image.

Why was the law created?
To modernize and speed up the check clearing system.

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