South Dakota raised its return deadline from 14 to 21 days in 2026, and the rule is simpler than most guides suggest: one deadline, running from the later of the tenancy ending and the landlord receiving your mailing address. The separate 45-day figure is an on-request itemized accounting, not a second deadline. The deposit cap is one month’s rent, and exceeding it needs more than a lease clause: it needs special conditions posing a danger to maintenance of the premises, making South Dakota less landlord-favorable than neighboring states.

The Short Answer

South Dakota caps deposits at one month’s rent, and a larger deposit may be agreed only where special conditions pose a danger to maintenance of the premises (§ 43-32-6.1). The landlord has 21 days from the later of the tenancy ending and receiving your mailing address or delivery instructions to return the deposit or furnish a written statement of the specific reason for withholding it. A landlord who fails to comply forfeits all rights to withhold any portion, and bad faith adds punitive damages of up to $200. There is no attorney’s fee provision. This rewards tenants who provide clear move-out information while protecting those who don’t.

Security Deposit Cap

South Dakota’s cap structure is flexible:

Default cap: One month’s rent
By written lease agreement: More than one month’s rent is permitted if the lease explicitly allows it

This flexibility allows negotiation but defaults to one month if nothing is specified. Tenants should review their lease carefully to understand what deposit was agreed upon and whether it exceeds the statutory default.

The 21-Day Return Deadline

South Dakota uses a two-track deadline system:

The deadline: 21 days, running from the later of the tenancy terminating and the landlord receiving your mailing address or delivery instructions (§ 43-32-24)
The 45 days is something else: on your request, the landlord must provide an itemized accounting of anything withheld within 45 days after the tenancy ends. It is not an alternative return deadline

Because the clock does not start until the landlord has your address, giving it promptly is what gets your money back sooner. Within the 21 days the landlord must either return the deposit or send a written statement of the specific reason for keeping any of it; the fuller itemized accounting comes on request.

Reference: South Dakota Codified Laws § 43-32-6.1 through § 43-32-24

What Can a South Dakota Landlord Legally Deduct?

Landlords may deduct for:

Unpaid rent or utilities
Damage beyond normal wear and tear
Reasonable cleaning costs (documented)
Repair or replacement of tenant-damaged property
Lease violation fees or other contract-specified charges
Pet damage (if lease included pet terms)

All deductions should be itemized and, where applicable, supported by receipts or repair estimates.

What Is Normal Wear and Tear in South Dakota?

Normal wear and tear includes:

Faded or scuffed paint from normal living
Minor marks or dents from furniture placement
Worn carpet pile or light stains from regular use
Small nail holes in drywall for wall hangings
Worn cabinet handles or light switches
Faded window treatments from sunlight
Slightly worn door hinges or handles
Minor cracks in drywall from settling

Beyond normal wear and tear (deductible):

Large holes or gouges in walls or doors
Permanent carpet stains, burns, or odors
Broken or inoperable appliances
Pet damage including urine stains, scratching, or behavioral damage
Broken windows, locks, or door hardware
Damaged tile, flooring, or fixtures
Accumulated dirt, trash, or pest infestation
Intentional damage or vandalism

Penalties for Wrongful Withholding

If a South Dakota landlord wrongfully withholds a deposit, the tenant can sue and recover:

Forfeiture: a landlord who fails to comply loses all right to withhold any portion of the deposit
Up to $200 in punitive damages for bad-faith retention, or bad-faith failure to give the written statement or itemized accounting

South Dakota provides no multiplier and no attorney’s fees in § 43-32-24. What gives the section teeth is the forfeiture rule: a landlord who misses the 21 days cannot keep anything at all, whatever the deductions might have been worth.

How to Get Your Deposit Back in South Dakota

Provide a forwarding address as soon as you know your move-out date. Email it to the landlord or property manager, or include it in a move-out notice letter.
Keep a copy of any communication providing your address — receipt of it is what starts the 21-day clock.
Take photos and video of the unit at move-in and move-out, documenting condition clearly.
Clean the unit thoroughly before vacating to minimize cleaning deductions.
Request a move-out inspection if possible, so you can witness the landlord’s damage assessment.
Document all communications in writing (email is ideal for timestamping).
Mark your calendar for 21 days from the later of the tenancy ending and the day the landlord received your address.
Expect the itemized statement within the applicable deadline. Review all deductions for reasonableness and documentation.
Challenge vague or undocumented deductions immediately in writing if they seem incorrect.
File in small claims court if the deadline passes without return or if deductions are unreasonable. Bring your lease, move-out photos, and all correspondence.

Key Statute

South Dakota Codified Laws §§ 43-32-6.1 and 43-32-24 – the one-month cap and its special-conditions exception (43-32-6.1), and the 21-day return duty, the on-request 45-day itemized accounting, the forfeiture rule and the $200 bad-faith penalty (43-32-24, as amended by SL 2026, ch 179).

Real Situations in South Dakota

In Sioux Falls, a tenant rented an apartment for two years with a $1,200 deposit (1 month’s rent). Upon move-out, the tenant provided a forwarding address immediately. The landlord returned the deposit on day 16, inside the 21 days, with a written statement confirming “no deductions claimed.” This compliant return resulted from clear communication. The tenant had the money back well inside the statutory period, with no dispute.

In Rapid City, a tenant did not provide a forwarding address at move-out. The landlord returned the deposit on day 42 and argued that the 45-day figure gave him until then. It does not: the 45 days is an on-request itemized accounting, and the 21-day return duty had simply never started, because the landlord never received an address. Once the tenant sent one, the 21 days ran from that date. The landlord’s itemized statement included $300 for carpet cleaning with a supporting invoice, which was documented as the statute requiovided. The tenant challenged the deduction by claiming the carpet was left clean, supported by move-out photos. South Dakota courts apply reasonableness; the invoice showed the cleaning service was hired within normal turnaround time (day 5 after move-out), and the work was documented. The deduction was upheld.

In Aberdeen, a tenant provided a forwarding address on move-out day. The landlord returned the deposit on day 24 (three days past the 21-day deadline) with an itemized statement claiming $250 for paint touch-ups without an invoice. Missing the deadline forfeited the right to withhold anything at all. The tenant objected immediately with a certified letter citing the late return and lack of documentation. The landlord responded within 10 days by refunding the $250 to avoid small claims court and the cost of litigation. The prompt response prevented further dispute.

Common Mistakes South Dakota Tenants Make

Not providing a mailing address, or waiting to provide it. The 21 days do not begin until the landlord has received your mailing address or delivery instructions, so delay costs you directly. Send it in writing within a few days of move-out and keep proof of when it arrived. That is what starts the candlord to process the deposit quickly.

Accepting deductions claimed without invoices or receipts. If the itemized statement lists deductions without supporting invoices or repair estimates, respond within 7 days with a certified letter demanding documentation. South Dakota law does not require receipts to be attached to the initial statement, but they should be provided upon request within a reasonable time. Lack of documentation weakens the landlord’s position.

Not citing the current deadline. SL 2026, ch 179 raised the period from 14 to 21 days, and plenty of guides still print the old number. Write it out in your move-out notice: “I am providing my mailing address today, so § 43-32-24 gives you 21 days to return the deposit or send a written statement of reasons.” Many landlords are unaware of the address-triggered 14-day deadline and respect it once informed.

Tenant Rights Guide: Know Your Rights in Every State — the complete hub for tenant protections, eviction laws, and landlord obligations
South Dakota Eviction Notice Requirements — what your landlord must do before starting eviction proceedings in South Dakota
South Dakota Small Claims Court — how to sue your landlord for a wrongfully withheld deposit without a lawyer
South Dakota Wage Theft Laws — South Dakota wage laws, overtime rights, and how to recover unpaid wages
South Dakota Tenant Rights Guide — complete tenant rights guide for South Dakota renters

This article is for informational purposes only and does not constitute legal advice. Always verify current rules at the source linked above or consult a licensed South Dakota attorney.

South Dakota Security Deposit Laws: 21-Day Return and the $200 Bad-Faith Penalty