> The brokerage reported some RSU stock-sells to the IRS but didn't report the cost-basis, and so the IRS assumed the cost-basis was $0 and thus taxed the full

> The brokerage reported some RSU stock-sells to the IRS but didn't report the cost-basis, and so the IRS assumed the cost-basis was $0 and thus taxed the full sale as income Similar, yet ... stupider... Did some standard stock buy/sells in a year, and the brokerage reported all the sales as full income, and no original cost, so they'd reported that I'd had something like $120k in 'income' ... No penalties for them for filing bad data, but it took me a while and some CPA time to respond accordingly. :/