Anonymous
Not applicable

I bought a home in '17 and was hit with a large supplemental prop tax bill in '18. The supp put me well over the new $10K cap. Can I can amend my '17 return to deduct?

I'm in California where we're hit hard by the new $10,000 cap on property tax deductions. My annual property taxes are already $13K. I bought by home in Feb 2017 and paid ~4K in property taxes in 2017 (everything I had been billed for). Then I was hit with a supplemental bill for almost $10K in 2018. With my normal annual property taxes, I have paid more than double what I am allowed to deduct, but half of that is for 2017. This is certainly the worst year for this to happen since, any other year, I could have just deducted the supplement in the year paid. Is there any way to avoid being penalized for only being assessed the supplement in 2018?