Real estate rental activity is by definition a passive activity--unless you are a real estate professional. The rules to be a real estate professional are more involved than you would think. A taxpayer must provide more than one-half of his or her total personal services in real property trades or businesses in which he or she materially participates AND perform more than 750 hours of services during the tax year in real property trades or businesses.
Real estate rental activity is not automatically a passive activity for a real estate professional. However, it can still be a passive activity if the real estate professional is not active within that real estate activity. There is an election available to group the real estate activities together for the purposes of this determination.
Depending on the income on your tax return, up to $25,000 of total rental real estate losses are deductible even if you are not a real estate professional as long as you are considered to be actively participating on the rental. The amount phases away as your income goes over $100,000 (MFJ).
Doublecheck the boxes in TurboTax. If there is a box to indicate the activity is rental real estate, make sure it is checked. If your wife qualified as a real estate professional, make sure that box is checked, too.
Check out the instructions for Form 8582, especially the section regarding Rental Activities.
https://www.irs.gov/instructions/i8582#en_US_2022_publink100...
As @Wayne Brooks mentioned, you calculate depreciation on your original cost of the property (assuming you purchased the property to be a rental and have not used it personally), not on its assessed value.