Nadya Suleman

It doesn't pay to cheat the tax man, even when you're "Octomom" Nadya Suleman.

Suleman, 37, is under investigation by the L.A. County Dept. of Welfare Fraud Protection for pocketing welfare money while grossing more than $200,000 on the side in 2012, TMZ reports.

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California law dictates if Suleman earns less than $119,000, she is entitled to benefits. But according to the website, she earned much more. Investigators have seized records from the home and office of Suleman's manager.

If arrested and found guilty of welfare fraud, Suleman, who has 14 children, could face up to three years in prison.