Your basis in the vehicle is what you paid for it minus any depreciation that you took for all the years in between. And any bonus depreciation or section 179 deduction that you took when you entered it into your 2018 return.
Most vehicles depreciate over 5 years so the basis is probably zero which would mean that 50% of the sale price is taxable to you. But you need to review the tax returns for the years you depreciated the van to make sure.
@racheldillon92
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