Arbitrage is the simultaneous purchase and sale of the same asset in different markets in order to profit from a difference in its price. The profit from buying something in one market and selling it in another.We have been preparing special calculations for governmental entities since 1992 and have extensive experience and training in the area of arbitrage rebate tax. Airbnb rental arbitrage is the act of renting a property longterm and then rerenting it shortterm on vacation rental sites like Airbnb or Vrbo. Arbitrage is the strategy of taking advantage of price differences in different markets for the same asset.