Dykstra, already serving a three-year sentence for auto theft, also has to complete 500 hours of community service and pay $200,000 in restitution for his conviction on bankruptcy fraud.
Dykstra, 49, apologized for his actions and promised to turn his life around.
"I don't think I'm a bad person," said Dykstra, who was in handcuffs and wearing a white prison-issued jumpsuit. "I made some bad decisions."
Prosecutors sought a 2½-year sentence after Dykstra pleaded guilty earlier this year to bankruptcy fraud, concealment of assets and money laundering.
Dykstra filed for bankruptcy three years ago, claiming he owed more than $31 million and had only $50,000 in assets.
After the filing, Dykstra hid, sold or destroyed at least $200,000 worth of items without permission of a bankruptcy trustee, prosecutors said.
The Associated Press contributed to this report.