If I file my taxes on my own without my wife we will get more back than if she files with me. Will we be penelized if she doesn't file this year? she doesn't owe?

My wife and I both claim 0. We also have child credits. but if we file both of our returns, we lose alot of money. If I file by myself without her we get much more back. My question is can I file just my return this year and have her not file this year? She has claimed 0 all year long so she shouldn't owe anything? Will we get penalized if we do this?