A firm has depreciation expenses of $220,000 for year one of a project and is in the 34% marginal tax bracket. This should create a cash flow of how much? Is this added as part of the operating cash flow or subtracted1. A firm has depreciation expenses of $220,000 for year one of a project and is in the 34% marginal tax bracket. This should create a cash flow of how much? Is this added as part of the operating cash flow or subtracted?