Hello,
If you are referring to residential rental depreciation, the depreciation schedule is generally straight line over 27.5 years. For more details, please see:
https://turbotax.intuit.com/tax-tips/rental-property/real-estate-tax-and-rental-property/L3e09vT71
If you are referring to other asset depreciation where different schedules may apply depending on the asset in question, please see:
https://turbotax.intuit.com/tax-tips/rental-property/tax-deductions-for-rental-property-depreciation...
If you want to see the actual form breakdown where all the magic happens, then you would want to see form 4562 and associated worksheets. Please note that Turbotax Online currently has limited forms viewing support and you would currently need Turbotax Desktop to see full forms breakdown. Please see:
https://turbotax.intuit.com/tax-tips/small-business-taxes/what-is-the-irs-form-4562/L6gi8XwN6
If your question is how to enter residential rental depreciation, you can see the process in the following post:
https://ttlc.intuit.com/questions/5057937-if-i-have-residential-rental-property-how-do-i-enter-depre...
