If I bought land in July of 2017 for $70,000 and sold it in August 2019 for $70,000, i made zero profit on it, am I still taxed on it even though there's zero profit

[Johnjack]

?

[Hal_Al]

No.  Only the profit (capital gain) is taxable, not the sale amount.  However, the sale must be reported on your tax return.

You may actually have a deductible capital loss, since it's unlikely that the cost basis (purchase price) and sale amount are exactly $70,000 considering the expenses of sale.

[Critter-3]

Don't forget there was probably expenses to purchase as well  .... purchase price + cost to purchase + cost to sell = basis in property.     Selling price - basis = gain/loss  which must be reported on the return either way.