Perspective said:
That's fair, but my question is, who owns a house in Irvine, who is not deep into the AMT? These are not the typical households - typical being two working adults with income sufficient to support a mortgage well above $500K. Even an $800K house requires a ~$160K household income to support an 80% LTV mortgage. This household is near the AMT, if not in it.
So, the sweet spot for benefiting from prepaying property taxes, is a household living in an expensive (relative to the US median) house, whose income doesn't exceed six figures by much. e.g. A recently retired couple living in a ~$1M+ Irvine house, assessed at $1M with mello roos, whose 2017 income will be below ~$150K.
Well, I don't know what the definition of "doesn't exceed six figures by much" is, but I haven't been snared by the AMT yet and fit the profile of someone who could easily live and qualify for a home in Irvine.
I think the keys for us are:
-Pretax retirement contributions (401k, CalSTRS)
-Pretax medical
-Pretax dependent care account (a pretax medical FSA would work as well, but I choose not to use this benefit)
-Buying a house near the bottom of the market (relatively low property taxes)
-Charitable contributions (this is a double benefit as it lowers state income tax and doesn't get added back into AMT calculation)
-Maxing out Roth IRA's. This doesn't directly help with AMT, but ensures that much of our capital gains / dividends remain tax free.
-Invest in real estate. This doesn't directly help with AMT either, but depreciation and generous deductions help shield this income from taxation.
So anyway, I prepaid my 2nd property tax installment last night. 8)