(CNN) - Take a good look at your credit report. There could be a mistake in it that could cost you money or keep you from getting a mortgage or a car loan.

As many as 42 million Americans have errors in their credit report, according to a report from the Federal Trade Commission, and 20 million have significant mistakes.

The Consumer Data Industry Association is hitting back, saying 98 percent of credit reports are accurate.

Just to be sure, it's important to look at your credit report from all three major credit bureaus.

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