To my understanding, in the USA, the IRS considers barter a taxable event upon both parties to the barter transaction. If anyone has a citation proving otherwise, I'd certainly appreciate it if you'd share.
The United States of America constitute less than 5% of the people on this planet. Who cares what the IRS consider barter to be?
They have a whole bunch of stupid rules, capital gains taxes, gift taxes, the list goes on. The short answer is yes, they consider barter to be a 'taxable event'. Where I live, we do not, nor do we have capital gains taxes or gift taxes.
Here is a link to the information you requested
http://www.irs.gov/taxtopics/tc420.html"Bartering occurs when you exchange goods or services without exchanging money. An example of bartering is a plumber exchanging plumbing services for the dental services of a dentist. You must include in gross income in the year of receipt the fair market value of goods or services received from bartering."Just beware that the creation of the unconstitutional IRS was passed with the same bill that created the unconstitutional FED in 1913... No coincidence.
The associated "authorities" in other countries have different names and dates of installment - but serve exactly the same purposes and route the cash into exactly the same structures, which are controlled by exactly the same breed of colluded central bankers. Most governments are merely muppets that dance as they are instructed to, assisted by mass media owned by just about the same people worldwide. No coincidence either.
To me, it's like comparing different "brands" of shampoo, washing powder or soap... All looking different, carry different languages, advertised and sold in various nations... all very likely owned and operated by one of the global MegaCorps (in this example Unilever).
If you are interested about how to bypass government, consider this. The constitution, Article 1, Section 10, Clause 1 has a statement in it that says: "No State shall ... make any ... Law impairing the Obligation of Contracts ..." The Federal Government has been adjudicated to be a state. See: Enright v. U.S., D.C.N.Y., 437 F.Supp. 580, 581.
Here's what to get pushed through the courts. Form contracts for any business that you do with other people. Let the contracts invoke the above Article 1 wording along with wording stating that it is the intent of the contract and the parties to the contract that no state laws apply except upon an explicit allowance by the parties to the contract that they are accepting certain stated laws. Throw in the wording that the Federal Government is a state. Say, also, that not answering a challenge by some some state authority in no way waives any part of the contract.
Apply the above with enumerations of specific laws that you do not want to apply to the contract or the parties thereof - IRS taxation, and business licensing, for example.
Doing this will make your Bitcoin transacting to match your terms and not government terms.