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Is there lesser or no tax on assets?
Tax Shield would be known as: A tax shield is a reduction in taxable income for an individual or   corporation achieved through claiming allowable deductions such as   mortgage interest, medical expenses, charitable donations,   amortization and depreciation. These deductions reduce a taxpayer's   taxable income for a given year or defer income taxes into future   years. Tax shields lower the overall amount of taxes owed by an   individual taxpayer or a business. I know of various real estate investors that will use depreciation as noted above to reduce their tax liability though others can use other deductions. Fortune has this on Buffett's taxes in 2015: Here’s the breakdown of Buffett’s income taxes for 2015, according to   the statement: