Missouri Landlord-Tenant Laws
Missouri Security deposits
Missouri caps security deposits at two months' rent and gives landlords thirty days after the tenancy ends to return the deposit or send a written itemized list of damages with any balance.
Missouri Rent increase notice
Missouri has no statute requiring advance notice of a rent increase — the one-month figure everyone cites is derived from RSMo 441.060.4, which lets either party end a month-to-month tenancy by written notice taking effect on a periodic rent-paying date not less than one month after the notice is RECEIVED, so a landlord who raises rent is effectively offering new terms the tenant can refuse by leaving on a month's notice.
Missouri Late fees
Missouri sets no cap on residential late fees and mandates no grace period — no statute in the landlord-tenant chapters (RSMo 441 and 535) mentions late fees at all, so the fee is whatever the lease says, subject only to the court-enforced rule that a late fee must be a reasonable pre-estimate of the landlord's loss rather than a penalty.
Missouri Entry notice
Missouri has no statute requiring landlords to give any advance notice before entering a rental — no notice period, no list of permitted reasons, and no time-of-day limits — so entry rights are governed entirely by the lease.
How this record was verified: Direct read of statute text on the official Missouri Revisor of Statutes site (revisor.mo.gov): RSMo 535.300 read in full THREE times via independent fetches (all load-bearing figures — two months' cap, thirty-day return, written-notice inspection right, twice-the-amount-wrongfully-withheld penalty, subsection 8 definition — matched verbatim across reads), RSMo 441.060 and RSMo 441.043 each read twice (matched verbatim), plus single trap-check reads of RSMo 535.060 (demand of rent — confirmed it says nothing about late fees), RSMo 415.400 and 415.417 (confirmed the $20/20% late-fee figure belongs to the Self-Service Storage Facilities Act, not residential rentals), RSMo 441.233 (unlawful ouster), RSMo 441.065 (abandonment entry procedure), and the full chapter 441 section index (confirmed no entry-notice, late-fee, or rent-increase-notice section exists). 2026 regular session Truly Agreed To and Finally Passed list (102 bills) checked on senate.mo.gov 2026-07-09 — no landlord-tenant bills passed; the 2025 amendments to 441.043 (H.B. 595 & 343, effective 2025-08-28) are already law and are incorporated, not flagged.