Low interest rates and other factors have caused global merger and acquisition (M&A) activity to reach new highs in 2021, according to Refinitiv, a provider of financial data. It reports that 2021 is set to be the biggest in M&A history, with the United States accounting for $2.14 trillion worth of transactions already this year. If you’re considering buying or selling a business — or you’re in the process of an M&A transaction — it’s important that both parties report it to the IRS and state agencies in the same way. Otherwise, you may increase your chances of being audited. If a sale involves business assets (as opposed to stock or ownership interests), the buyer and the seller must generally report to the IRS the purchase...