Cost Segregation on taxes and applying for Jumbo Loan for Primary

Hello,

I am in the middle of doing a cost segregation study on a property I purchased which will be on my 2021 Taxes.  I am also about to apply for a mortgage for a primary residence in Florida.  I know depreciation gets added back in as income but wasn't sure if about $400k of depreciation in one year from a cost seg would be all added back as income in 1 year as well?  I have called the brokers I know and none of them have ever dealt with a cost seg and that much depreciation in one year being shown on a tax return before.

Any help would be much appreciated.

Mike