Letters Testamentary in South Dakota: How to Get Them and What They Do

A bank teller asked you for "Letters Testamentary" before they'd release your late parent's account. You nodded as if you knew what that meant — and then went home and searched. You're in the right place.

Letters Testamentary are the official court document that proves you have legal authority to act on behalf of a deceased person's estate. Without them, no bank, brokerage firm, transfer agent, or government agency will let you touch the estate's assets. With them, you can access accounts, sell real estate, close credit cards, and do everything else that settling an estate requires.

What Letters Testamentary Are

Letters Testamentary are issued by the circuit court clerk after the court formally approves your appointment as personal representative of an estate where a valid will exists. The document is typically a one-page letter on court letterhead, stating that you have been appointed as personal representative and are authorized to act on behalf of the estate.

"Testamentary" simply means "relating to a will" — you receive Letters Testamentary when the deceased left a will that names you as executor.

Letters of Administration: The Same Document, Different Circumstances

If the deceased died without a valid will (intestate), or if the will exists but does not name a personal representative, the court issues Letters of Administration instead. These function identically to Letters Testamentary — they authorize you to act on behalf of the estate — but they reflect that your appointment came from the court's intestate succession rules rather than from the decedent's own nomination.

When an institution asks for "Letters Testamentary," they will generally accept Letters of Administration in their place. Both documents establish the same legal authority. The name on the document depends only on whether a will existed.

How to Get Letters Testamentary in South Dakota

Letters are not issued automatically when someone dies. You must actively file for them through the South Dakota circuit court system.

Step 1: File an Application for Informal Probate

The personal representative (or person seeking to become one) files an Application for Informal Probate with the circuit court in the county where the decedent was domiciled at death. The South Dakota Unified Judicial System's Guide and File portal can help generate the required pleadings for self-represented individuals.

The upfront court cost is $122: a $75 base filing fee, $40 court automation surcharge, and $7 county law library fee.

Step 2: Submit the Original Will

If a will exists, submit the original document to the court along with the application. The clerk reviews the will to confirm it appears valid on its face (proper signatures, witnesses) before approving the appointment.

Step 3: Receive Your Letters

Once the clerk approves the application and appointment — typically within a few days for straightforward cases — the court issues Letters Testamentary (or Letters of Administration). You can request multiple certified copies at the time of issuance.

How Many Certified Copies Do You Need?

Order more copies than you think you'll need. Each institution that requires proof of your authority will want its own original certified copy — many will not accept photocopies or simply viewing the original.

A typical South Dakota estate requires 8–12 certified copies. If the estate includes accounts at multiple banks, several insurance policies, real estate to transfer, and various government agencies to notify, 15 copies may be appropriate. Ordering additional copies later means returning to the court, which takes time and costs a small additional fee per copy.

What You Can Do With Letters Testamentary

Once you have Letters, you have legal authority to:

• Access and manage bank accounts and investment accounts held in the decedent's name
• Collect debts owed to the estate
• Pay estate expenses and valid creditor claims
• List, manage, and sell real estate (subject to court requirements for formal sales)
• Transfer vehicle titles through the county treasurer
• File tax returns on behalf of the estate
• Distribute assets to beneficiaries at the appropriate time

What You Cannot Do Even With Letters

Letters grant authority, but not unlimited authority. You remain a fiduciary with specific legal obligations. You cannot:

• Distribute assets to heirs before all valid creditor claims are paid
• Buy estate assets for yourself at below-market prices (self-dealing)
• Commingle estate funds with your personal accounts
• Take actions the will specifically prohibits
• Distribute to heirs while a will contest or creditor dispute is pending

When Letters Expire

In South Dakota, Letters Testamentary remain valid until the estate is formally closed. There is no automatic expiration date as there is in some other states. However, once you file a closing statement with the circuit court and the requisite one-year period passes with no court proceedings pending, your appointment as personal representative officially terminates.

Some financial institutions have their own informal expiration policies — they may request Letters issued within the past 60 or 90 days before acting on them. If your Letters are older, request a court-issued certification of their continuing validity, or order fresh certified copies if the clerk has not yet processed your closing.

Ancillary Situations: Letters from Another State

If a South Dakota decedent was primarily probated in another state (because they were domiciled there), but owned South Dakota real estate or other local assets, the out-of-state personal representative can extend their authority to South Dakota assets without opening a full South Dakota probate. Under SDCL 29A-4-205, a foreign personal representative who files authenticated copies of their appointment documents and bond with a South Dakota circuit court may exercise all powers of a local personal representative regarding South Dakota assets.

For the complete step-by-step process of opening a South Dakota estate, obtaining Letters Testamentary, and managing every obligation through final distribution, the South Dakota Probate Process Guide provides the exact sequence with statutory citations and required forms.

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