Vanguard’s Broken Tax Cost Basis System

Pollock Cohen LLP is investigating reports of an issue affecting investors with Vanguard brokerage accounts. Investors who identified specific cost bases to Vanguard when selling shares of stock later discovered that Vanguard had processed the sales incorrectly and the stocks they sold had different cost bases than those they selected. This problem with the Vanguard system can have significant tax implications for individuals, resulting in large losses.

If you invest through Vanguard, and you think you might have suffered from this cost basis issue, please fill out the form below for a free, confidential consultation.


A class action lawsuit is a way for a group of people who have suffered similar harms to bring a single collective case and share in any potential award. You become part of a group, with far more potential power than filing a lawsuit on your own—and at no cost to you.

Filing a class action lawsuit allows us to consolidate evidence, witnesses, and litigation expenses to make the lawsuit more efficient and effective. The collective “clout” of the class is typically far more effective than an action by any individual plaintiff.

No! The attorneys work on contingency, and only get paid if the case is successful. Any fees they may be awarded are determined by the court and paid by the defendant.

Case Contact