What Documents Does an Executor Need? Full Checklist
Quick Answer: Once appointed, an executor needs Letters Testamentary or Letters of Administration from the court, several certified copies of the death certificate, a separate IRS Employer Identification Number (EIN) for the estate, and documentation of every asset for the Inventory and Appraisal. None of this is optional paperwork; each document unlocks a specific step, from opening an estate bank account to actually distributing assets.
Letters Testamentary or Letters of Administration
Before an executor can act on the estate’s behalf at all, the court issues either Letters Testamentary (if named in a will) or Letters of Administration (if appointed without one). This document is what banks, county recorders, and other institutions will ask to see before releasing information or assets to the executor. For the full appointment process and required forms, see our complete guide to California Letters of Administration.
Multiple Certified Copies of the Death Certificate
An executor typically needs more certified copies of the death certificate than they’d expect, commonly 10 to 15 for a California probate. Each bank, brokerage, insurance company, and government agency the executor deals with generally wants its own original certified copy; photocopies usually aren’t accepted. Ordering too few means repeat trips to the county recorder or vital records office mid-administration.
An EIN for the Estate, Not the Executor’s Own Social Security Number
Once Letters are issued, the estate becomes its own legal and tax entity, separate from both the decedent and the executor personally. To open an estate bank account, pay estate taxes, or manage estate assets, the executor needs to apply for an Employer Identification Number (EIN) for the estate using IRS Form SS-4, which is free to file directly through IRS.gov. Using the executor’s personal Social Security number instead of an estate EIN can create real problems when it comes time to file the estate’s own tax return.
Asset Documentation for the Inventory and Appraisal
Under Probate Code Section 8800, an executor must file an Inventory and Appraisal within four months of receiving Letters. Pulling this together means gathering documentation for everything the estate owns: property deeds, vehicle titles, bank and brokerage statements, stock certificates, life insurance policies naming the estate as beneficiary, and any outstanding debts owed to the decedent. Real property and certain other assets also need a formal appraisal from the court-appointed probate referee, not just a self-reported value.

Not the Same as an Heir’s Advance-Application Documents
It’s worth distinguishing this executor checklist from what an heir needs if they’re applying for a probate advance rather than administering the estate themselves; those documents (the will, the death certificate, and proof of relationship to the decedent) are a shorter list aimed at a different purpose. See our guide to required documents for an inheritance advance if that’s what you’re looking for instead.
Need Funds While You’re Still Gathering Documents?
Pulling together an estate’s full paperwork trail while administering a California probate case, which commonly takes 9 to 18 months, can leave heirs waiting a long time for their share. ProbateLend offers a probate advance that gives qualifying heirs a portion of their expected inheritance now, without waiting for the estate to formally close. There’s no credit check and no monthly payments; repayment comes out of the estate at final distribution.
Frequently Asked Questions
Can an executor use their own Social Security number instead of getting an estate EIN?
No, not properly. The estate is a separate legal entity once Letters are issued, and most banks and the IRS expect a distinct EIN for estate accounts and tax filings rather than the executor’s personal SSN.
How many certified death certificates should an executor order?
Most California executors order 10 to 15 certified copies, since each financial institution, insurer, and government agency typically wants its own original rather than a photocopy.
What happens if the Inventory and Appraisal deadline is missed?
The court can require the executor to explain the delay, and repeated missed deadlines can raise questions about whether the executor is administering the estate properly, which can complicate matters for everyone involved.
Does every asset need a formal appraisal?
Real property and certain other assets need a valuation from the court-appointed probate referee; some liquid assets like bank account balances can typically be reported at face value by the executor directly.
Is getting an EIN for the estate complicated?
Not usually. Form SS-4 can be filed for free directly through the IRS website, and an EIN is typically issued immediately for online applications.
For more on the appointment process and the documents that establish an executor’s authority, see our guide to administrator vs. executor differences. If you’re an heir waiting on a case to close, learn more about how probate advances work. For more on California probate, visit ProbateLend.
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