If an established business exists on a leased property (and will be moving into the new property after closing), can the lease payments be added back to the cash flow when determining the approval amount for loan?

I will not renew my lease if I can find a nice piece of commercial property.
I dont understand why not. To me it is like telling a renter interested in purchasing a home that their qualifying amount is based on their income AFTER they pay their rent. It doesnt make sense. The only difference is that the business owner can take that expense off their taxes.