Delaware Landlord-Tenant Laws: The Complete 2026 Overview

Delaware caps the security deposit at one month’s rent for a lease of one year or more under 25 Del. C. section 5514; a shorter lease has no cap until the tenancy has lasted a year, at which point any excess must be returned. The return is where the statute has teeth: within twenty days after the tenancy ends, the landlord must deliver the remaining balance together with a written itemized statement of any deductions. Deductions are limited to unpaid rent, damage beyond normal wear and tear, unpaid utilities, and lease-specified charges. A landlord who fails to return the deposit, or the itemized difference, within the twenty days owes the tenant double the amount wrongfully withheld, and Delaware requires deposits to be held in a separate account. No interest is required. Disputes go to Delaware’s small claims court, which hears claims up to twenty-five thousand dollars.

Read the full Delaware security deposit laws guide for permitted deductions, the wear-and-tear line, and the move-out timeline.

Delaware is not a just-cause state – a landlord may decline to renew a lease for almost any lawful reason. To evict for nonpayment of rent, the landlord must first serve a written five-day notice to pay or quit under 25 Del. C. section 5502, unless the lease specifies a longer period. If the tenant does not pay or move out, the landlord files a summary-possession action in the Justice of the Peace Court where the property sits; the tenant generally has a ten-day window to respond, and a hearing is typically set ten to thirty days after filing. An uncontested Delaware eviction usually runs thirty to sixty days from notice to writ. Self-help evictions – changing locks, removing belongings, or shutting off utilities – are illegal under section 5313 and expose the landlord to actual damages and penalties. Only a sheriff or constable acting on a writ of possession may physically remove a tenant.

Read the full Delaware eviction notice laws guide for the filing steps, the hearing timeline, and the writ of possession.

Delaware sets a clear entry rule. Under 25 Del. C. section 5509, a landlord must give at least forty-eight hours’ notice before entering an occupied unit for a non-emergency purpose, and may enter only between eight in the morning and nine at night. Valid purposes include inspection, repairs, maintenance, showing the unit to prospective tenants or buyers, and delivering required notices; a genuine emergency such as fire, flooding, or a gas leak permits immediate entry without notice. The rule runs alongside the tenant’s common-law right to quiet enjoyment, so a landlord who abuses the right of access, enters pretextually, or uses entry to harass can face actual damages, and a repeated pattern of unlawful entry can amount to a constructive eviction that lets the tenant leave. Written notice that states the date, a time window, and the purpose is the single best way to keep an entry defensible.

Read the full Delaware landlord entry laws guide for the permitted-entry reasons and how to write a compliant notice.

Delaware has no rent control, and state law bars cities and towns from adopting their own, so there is no legal cap on how much a landlord may raise the rent. The limits are about timing and motive. A landlord must give at least sixty days’ written notice before a rent increase takes effect on a month-to-month tenancy, and the same sixty days before the end of a fixed term if a renewal will carry a higher rent – one of the longest notice periods in the country. The tenant generally has a right to object by terminating the tenancy before the increase takes effect, and a manufactured-home lot carries an even longer notice of about ninety days. During a fixed-term lease the rent is locked unless the lease itself contains an escalation clause. The increase cannot be retaliatory – raised to punish a good-faith complaint or repair request – or discriminatory against a protected class.

Read the full Delaware rent increase laws guide for the notice mechanics and the retaliation limits.

Delaware caps residential late fees. Under 25 Del. C. section 5501, a late fee may not exceed five percent of the monthly rent, must be specified in a written lease, and can be imposed only after rent is actually past due – and Delaware requires a five-day grace period before a late fee becomes collectible. A fee stated as a penalty rather than a reasonable estimate of the landlord’s costs, or one above the five percent cap, is unenforceable, and a fee not written into the lease cannot be charged at all. A returned-check or non-sufficient-funds fee is a separate charge, enforceable only when the lease provides for it, and typically runs about forty dollars. Late fees must be applied consistently across tenants; selective enforcement invites a discrimination claim and erodes the fee in court. Unpaid late fees can be deducted from the deposit at move-out or pursued in small claims court up to twenty-five thousand dollars.

Read the full Delaware late fee laws guide for the five percent cap and grace-period practice.

Under 25 Del. C. section 5305, a Delaware landlord must comply with building and housing codes materially affecting health and safety, make the repairs needed to keep the unit fit and habitable, and maintain the electrical, plumbing, and heating systems – a duty that cannot be waived by the lease. The tenant triggers a remedy by giving written notice, with certified mail and return receipt preferred. If a condition deprives the tenant of a substantial part of the benefit of the rental, section 5306 lets the tenant terminate if the landlord does not cure within fifteen days. Section 5307 offers a limited repair-and-deduct remedy after written notice and a thirty-day cure window, capped at four hundred dollars or one-half of one month’s rent, whichever is less. When an essential service like heat or water is cut off, section 5308 adds separate remedies, including keeping two-thirds of the per diem rent. Retaliation against a tenant who asserts these rights is barred by section 5516.

Read the full Delaware habitability laws guide for the repair-request procedure and the tenant remedies.

Delaware lists the grounds for early termination in 25 Del. C. section 5314(b): entering active military service after signing, being the victim of domestic abuse, a sexual offense, or stalking, an employer relocation of more than thirty miles, serious illness or a death in the immediate household, and acceptance into senior or government-subsidized housing. Each runs on thirty days’ written notice, and the thirty days begins on the first day of the month after notice is given, not the day of notice. Domestic-violence victims get a second layer of protection under section 5316, which bars a landlord from penalizing or refusing to renew because of the tenant’s status, and servicemembers may also rely on the federal Servicemembers Civil Relief Act, 50 U.S.C. section 3955. For a tenant who simply leaves without a statutory ground, section 5507(d) imposes an express duty on the landlord to mitigate, so the departing tenant owes the lesser of the full remaining term or the mitigated vacancy gap – not the whole balance – and a qualified sublet cannot be unreasonably refused under section 5508.

Read the full Delaware breaking lease laws guide for each statutory ground and the mitigation math.

Ending a Delaware tenancy depends on its type, and the governing statute is 25 Del. C. section 5106. A month-to-month tenancy is terminated by at least sixty days’ written notice from either party, and a fixed-term lease that a party does not intend to renew generally calls for sixty days’ notice before the end date. Delaware does not require just cause to decline to renew, but the non-renewal cannot be discriminatory under the Fair Housing Act or retaliatory. A tenant who stays past the end date without a new agreement becomes a holdover, and section 5515 exposes a holdover to a double-rent penalty while the landlord pursues possession through the Justice of the Peace Court. Automatic-renewal clauses are enforceable when the lease gives a sixty-day non-renewal window, so tenants should calendar the cutoff. Whenever a tenancy ends, the deposit rules of section 5514 – the twenty-day return and itemized list – still apply to the move-out.

Read the full Delaware lease termination laws guide for notice by tenancy type and holdover liability.

For an actual pet, Delaware lets a landlord charge a separate pet deposit under 25 Del. C. section 5514, capped at one month’s rent and held separately, and pet rent is not capped by statute. Private landlords may also impose breed or weight restrictions on ordinary pets. Assistance animals are treated completely differently. Under the federal Fair Housing Act and the Delaware Fair Housing Act, a service animal or emotional support animal is not a pet – a landlord may not charge any pet deposit, fee, or rent, and may not apply a breed or weight restriction or a no-pet policy to it. When the disability or the animal’s role is not obvious, the landlord may request reliable documentation from a licensed provider under HUD’s Notice FHEO-2020-01, but may not demand a diagnosis, certification, or registration. The tenant remains liable for any actual damage the animal causes, deducted from the regular deposit. Delaware has no statute criminalizing misrepresentation of a pet as an assistance animal, so a landlord who doubts a request should verify the documentation compliantly rather than deny.

Read the full Delaware pet and ESA laws guide for accommodation requests and documentation limits.

Delaware regulates screening more than most states realize, because it caps the application fee outright. Under 25 Del. C. section 5514, the fee may not exceed the greater of ten percent of one month’s rent or a fifty-dollar floor; the landlord must give a receipt and keep fee records for two years, and overcharging exposes the landlord to double the amount charged. With the applicant’s written authorization, a landlord may pull a consumer report covering credit, rental history, income, and criminal convictions – the federal Fair Credit Reporting Act requires a permissible purpose and consent first, and an adverse action notice if a report drives a denial, a higher deposit, or a co-signer demand. Delaware diverges sharply from the federal floor on one point: the Delaware Fair Housing Act, in Title 6, lists source of income as a protected class, so a landlord generally cannot reject an applicant solely for paying rent with a Housing Choice Voucher or other lawful assistance. Blanket criminal-record bans are risky under HUD’s 2016 disparate-impact guidance, so an individualized assessment is safer.

Read the full Delaware tenant screening laws guide for the fee cap, the voucher rule, and the FCRA steps.