If you’re handling a loved one’s estate in Delaware and need to access bank accounts, sell property, or pay debts, you’ll likely need letters testamentary. These court-issued documents officially name you as the executor and give you legal authority to act on behalf of the estate. Without them, financial institutions and government agencies won’t recognize your role even if you’re named in the will.

What are letters testamentary in Delaware?

Letters testamentary are official court documents issued by the Delaware Register of Wills after a valid will is admitted to probate. They confirm that you’ve been appointed executor and list your powers like collecting assets, paying bills, filing taxes, and distributing what’s left. They’re not the same as letters of administration (used when there’s no will) or affidavits for small estates. You only get letters testamentary if the deceased left a will and you’re named as executor or if the court appoints you as executor in place of someone who can’t serve.

When do you need to apply for letters testamentary?

You’ll need to apply soon after the person dies if the estate includes assets held solely in their name and not automatically transferred (like joint accounts or payable-on-death accounts). For example: a Delaware home titled only in the deceased’s name, a brokerage account without a beneficiary, or unpaid wages owed to them. If all assets pass outside probate, you may not need letters at all. But if you’re trying to close a bank account at Chase in Wilmington or transfer title to a Dover condo, the institution will almost always ask for certified letters testamentary.

How to start the process in Delaware

First, confirm the will is original and hasn’t been revoked. Then file a petition with the Register of Wills in the county where the deceased lived at the time of death New Castle, Kent, or Sussex. You’ll need a certified copy of the death certificate, the original will, and completed forms like the Petition for Probate and Appointment of Executor. The court also requires a $100 filing fee (as of 2024), plus additional fees for certified copies of letters later. You can find the exact forms and instructions on the Delaware court procedures page.

What happens after you file?

The Register of Wills reviews your petition. If everything is complete and no one objects, they’ll issue letters testamentary usually within 1–3 business days for uncontested cases. You’ll receive an original document stamped and signed, plus certified copies you can use with banks, title companies, and the IRS. If the will names co-executors or if someone contests the appointment, the process takes longer and may require a hearing. You can track where you are in the timeline using the Delaware probate process overview.

Common mistakes to avoid

  • Filing in the wrong county always use the county of the decedent’s residence, not where assets are located.
  • Submitting a photocopy of the will instead of the original. Courts won’t accept scanned or faxed versions.
  • Forgetting to notify all heirs even if they’re not named in the will within 30 days of appointment. Delaware law requires this notice.
  • Assuming letters testamentary let you skip tax filings. You still need to file a final state income tax return and possibly a federal estate tax return, depending on the estate size.

Helpful tips for a smoother application

Bring two forms of ID to your in-person filing (if required), and make extra copies of the death certificate you’ll need them for nearly every step. If the will names alternate executors and the primary can’t serve, include a signed waiver from them. And if you’re unsure whether the estate qualifies for Delaware’s simplified probate process (for estates under $30,000 with no real estate), check the Delaware letters testamentary requirements first it could save you time and fees.

What to do right after receiving letters testamentary

Once you have the certified letters, open an estate bank account using them and the EIN you get from the IRS. Then begin gathering asset statements, paying valid debts, and keeping clear records of all transactions. You’re legally required to file an inventory of estate assets with the Register of Wills within 90 days. For step-by-step help filling out forms and meeting deadlines, see our how to apply guide.

Next step: Download the official forms from the Delaware Courts website, gather your documents, and file your petition with the Register of Wills in the correct county. If the estate has real estate, multiple beneficiaries, or unclear provisions in the will, consider speaking with a Delaware attorney before filing.