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Buying a house. I have the cash for the whole thing. Should I still get a mortgage to get the homeowner tax break?
Except for unusual tax situations your effective interest rate after taking into account the tax deduction will still be positive. It is simply reduced by your marginal rate. Therefore you will end up paying more if the house is financed than if it is bought straight out. Note this does not take into account other factors such as maintaining liquidity or the potential for earning a greater rate of return by investing the money that would otherwise be used to pay for the house