If you inherit an IRA, for maximum tax deferral, you should:
If you’re the trustee or the beneficiary of a trust that has been named an IRA beneficiary, notify the custodian as soon as possible that the account should not be re-titled in the name of the trust.
To qualify for a stretchout, the IRA should be kept in the decedent’s name, perhaps in a special “for the benefit of” account. Changing the account’s name to that of the beneficiary results in a taxable distribution.
What if the custodian re-titles the account in the name of the beneficiary? You may be able to catch it and have it changed back before a Form 1099-R is sent out, reporting the income to the IRS.