[bduerst]

It's more complex than that because both parties have to report the dollar amounts of the goods/services in the barter exchange.

Whoever comes out on top has to report income, and whoever comes out on bottom has to report the expense.

[mattm]

Assuming the barter trade was even, the income and expense would cancel out thereby no taxes would be owed.

[bduerst]

In barter exchanges, this is almost never the case, and is more suspicious when reported as such.

[logfromblammo]

The whole point of barter is that the stuff traded by each side has roughly equivalent value to the traders.

Seems like the tax rules outlaw pure barter and make you use dollars in your transaction whether you want to or not.

[thaumasiotes]

I was pretty sure the point of barter was that both sides realized a gain. That's the concept of "gains from trade".

I mention this because you specifically call out "equivalent value to the traders".

[logfromblammo]

Gains from trade are theoretical numbers, based on the shapes of the supply and demand curves. As long as those numbers are positive, trade still happens. When zero, the traders are indifferent to the trade. So when things like monopoly pricing, taxes, and price discrimination com into play, a certain quantity of trade will simply not happen.

That value is not something you can tax directly. It's more like happiness than cash. In the barter, the traders walk away with the same value of goods, but greater happiness. I'm not sure what dollar value the IRS places on happiness, but based on their behavior, I'm pretty sure it is $0 per smile.

Therefore, neither trader in a normal barter should realize a taxable gain.

[thaumasiotes]

In barter, both parties believe that the value they walked away with is greater than the value they put into the deal. In principle, that's exactly what the IRS wants to tax. A currency system should generally preclude any barter by assigning reliable values to both parties' goods, such that the one whose stuff is assigned a higher monetary value by the market will be unwilling to make the trade, since they could do better by just selling their stuff and buying the other party's. (A raw trade could still happen where the market value of each party's offering is somewhere within the bid/ask spread of the other's.) But that's independent of what "barter" is. Barter is just trade unmediated by a currency. You can realize taxable gains through barter in just the same way that my uncle once paid his rent for a month by selling an art object he bought at a garage sale for under $100. Despite being mediated by cash, that was a highly uneven trade, and barter is no different.

In a happy coincidence for the IRS, assigning monetary values to everything makes it trivial to assign a value to the trade for the gaining party to pay tax on. Again, not relevant to what barter is.

[URSpider94]

You can do pure barter, you just have to pay taxes on the transaction -- and those taxes must be paid in dollars.

This is part of what it means to be a national currency -- it's what the government accepts for payment of taxes.

[predius]

Which is the point, the IRS doesn't want barter to be normalised because that would mean some people could claim barter and escape paying tax.