why do you think you need or want to change?
The IRS rule is written such that if one spouse itemizes, then the other spouse is not eligible for the standard deduction and must itemize or take no deduction. It's not applied the other way around as in, if one spouse takes the standard, then you must also take the standard. This means when you itemized the standard deduction was taken away from your spouse. So, whether that is something you want to do is your decision, but, in the end, you both must use the same method. IRS Publication 501
