Estate valuations are based on the mean price and accrued income of the securities on the date of death or an alternate date six months after death. Estate valuations on these securities are complex, and every time you prepare a tax return, you face the possibility of an IRS audit. If your pricing information or accrual calculations don't correspond with the IRS regulations, you may have to endure a time consuming and often costly examination. Stockbrokers may be glad to help you gather pricing data, but they're really not familiar with the IRS regulations that heavily influence the estate valuations process. The professionals here are able to sit down with you and go over any questions regarding estate valuations you may have.