Hi @blindmedusa,
Any trade, transfer, or sale of cryptocurrency is taxable event, including converting between different cryptocurrencies or trading cryptocurrency for another asset. Utilizing cryptocurrency to purchase another asset (including a home) will result in a taxable event, as if the cryptocurrency was sold, and any capital gain/loss would need to be accounted for on your personal tax return.
Regarding property taxes, generally the tax assessor for the county/municipality will determine property taxes based on the value of the property when assessed, not on how it was purchased/paid for.
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