Is there a legal limit on late fees in Wyoming?

No statutory cap (see reasonableness standard and notes). No statutory cap, formula, grace period or reasonableness standard exists. The words 'late fee', 'late charge' and 'grace period' appear nowhere in Titles 1, 15 and 34 of the official LSO statute files.

Can a landlord charge a daily late fee in Wyoming?

No Wyoming statute addresses daily or compounding late fees, so such a fee is a lease term policed only by common-law contract and liquidated-damages/penalty principles.

What late fees can a landlord charge in Wyoming?

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Wyoming sets no cap on residential late fees and mandates no grace period — no statute anywhere in Wyoming law addresses late charges on residential rent, so a late fee exists only if the rental agreement creates it, bounded by ordinary contract law rather than any statutory test.

Cited to Wyo. Stat. § 1-21-1204 (a)(vi), (vii) and 3 more cited sources · Verified October 1, 2026

The '3-day' figure that circulates for Wyoming is not a grace period: it comes from the eviction statute, under which a landlord may bring a forcible entry and detainer action against a tenant who has failed to pay rent for three days after it is due — rent is still late (and a lease-based late fee can still accrue) from day one. Two statutory hooks give lease-based fees real teeth here: the deposit statute lets the landlord deduct 'other costs provided by any contract' from the security deposit, and the renter-duties statute makes staying current on 'all payments required by the rental agreement' a statutory duty whose violation is itself a ground for eviction. Wyoming never adopted the Uniform Residential Landlord and Tenant Act, so there is no unconscionability provision — an abusive fee would have to be attacked as a common-law penalty clause.

Wyoming late fees at a glance

Statutory cap	No statutory cap (see reasonableness standard and notes)
Mandatory grace period	None mandated statewide
Must be in the lease	Not addressed by statute
Daily fees	No Wyoming statute addresses daily or compounding late fees, so such a fee is a lease term policed only by common-law contract and liquidated-damages/penalty principles. Wyoming never adopted URLTA and has no statutory unconscionability backstop for residential leases.
Reasonableness standard	No statutory cap, formula, grace period or reasonableness standard exists. The words 'late fee', 'late charge' and 'grace period' appear nowhere in Titles 1, 15 and 34 of the official LSO statute files. The statutes touch lease charges only obliquely: deposits may be applied to 'other costs provided by any contract' (W.S. 1-21-1208(a)), and the renter's statutory duties include being 'current on all payments required by the rental agreement' (W.S. 1-21-1204(a)(vi)), whose violation is an independent eviction ground (W.S. 1-21-1002(a)(vi)). No Wyoming appellate decision fixing a late-fee standard is known.

Cite this page: "Landlord Atlas, Wyoming Late Fee Laws (verified October 1, 2026), landlordatlas.com/laws/late-fees/wyoming/" — free to cite and quote with a link (how these records are verified). Everything above is cited in the citations section below.

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Notes and caveats

No late-fee statute anywhere in Wyoming law — Title 1, ch. 21, arts. 10, 12 and 13 contain no late-fee provision, and the terms appear nowhere in Titles 1, 15 and 34. Title 40's only 'late charge' text is the Consumer Rental Purchase Agreement Act (W.S. 40-19-108(a)(x)-(xii)) — rent-to-own personal property, amended by 2025 SF0146 (ch. 75) — a keyword trap, not residential tenancy law.
Why 'must be in lease' is blank rather than yes — no statute conditions late fees on the lease; the lease-only footing is ordinary contract law, reinforced by § 1-21-1204(a)(vi)'s 'payments required by the rental agreement' framing.
The '3 days' figure is not a grace period — § 1-21-1002(a)(i) (an eviction may follow 'a failure to pay rent for three (3) days after it is due') and the 3-day notice to quit (§ 1-21-1003) are eviction-procedure timing. A lease-based late fee can still accrue from day one.
Unpaid fees have real teeth here — unpaid lease charges are deposit-deductible ('other costs provided by any contract'), and unpaid amounts beyond the deposit accrue 10% per year statutory interest under § 1-21-1211(b).
No unconscionability backstop — Wyoming never adopted URLTA — its Residential Rental Property Act is homegrown — and no unconscionability statute reaches residential leases.
No late-fee bill in the 2025 or 2026 sessions — the absence rests on the full statutory texts themselves, and neither the 2025 nor the 2026 session introduced a late-fee or junk-fee bill, as of July 12, 2026.

Common questions: Wyoming late fees

Each answer is the verified value from the table above, restated as a direct answer. Free to quote with a link to this page.

Is there a legal limit on late fees in Wyoming?: No statutory cap (see reasonableness standard and notes). No statutory cap, formula, grace period or reasonableness standard exists. The words 'late fee', 'late charge' and 'grace period' appear nowhere in Titles 1, 15 and 34 of the official LSO statute files.
Is there a grace period before rent is late in Wyoming?: None mandated statewide.
Does a late fee have to be written into the lease in Wyoming?: Not addressed by statute.
Can a landlord charge a daily late fee in Wyoming?: No Wyoming statute addresses daily or compounding late fees, so such a fee is a lease term policed only by common-law contract and liquidated-damages/penalty principles.

Citations

Wyo. Stat. § 1-21-1204 · (a)(vi), (vii) (verified 2026) Official source
Wyo. Stat. § 1-21-1208 · (a) ('other costs provided by any contract') (verified 2026) Official source
Wyo. Stat. § 1-21-1002 · (a)(i), (vi) (the 3-day rule is FED timing, not a fee grace period) (verified 2026) Official source
Title 1, ch. 21, arts. 10 and 12 (LSO NXT infobase views, official alternate presentations) (verified 2026) Official source

How this record was verified: Direct read of statute text in the Wyoming Legislative Service Office's compiled title files (wyoleg.gov/statutes/compress/title01.pdf, title34.pdf, title15.pdf, title40.pdf) on October 1, 2026. The files were compiled on May 8, 2026 and include the 2026 Budget Session. Title 1 ch. 21 art. 12 (W.S. 1-21-1201 through 1-21-1211) and art. 10 (1-21-1001 through 1-21-1017) read in full, plus W.S. 34-2-126 through 34-2-132; Articles 10 and 12 read the same in the Legislature's online statute view. Deposit figures were also read in the Wyoming Judicial Branch's TENANT-03 instructions (wyocourts.gov, rev. September 2024), which reprint W.S. 1-21-1208. Negatives (no deposit cap, no interest or separate-account rule beyond the express 'without interest' clause, no rent-increase or periodic-termination notice statute, no late-fee cap or grace period, no entry-notice statute, no rent-control or preemption provision) rest on full-article reads plus keyword searches of every title: zero occurrences of 'month-to-month', 'late fee', 'late charge' or 'grace period' in Titles 1, 15 and 34. Session check on the Legislative Service Office's bill records: all 278 enrolled acts of the 2025 General Session (171) and the 2026 Budget Session (107) were read for amendments to these sections; none amends W.S. 1-21-1001 through 1-21-1017, 1-21-1201 through 1-21-1211 or 34-2-126 through 34-2-132, and 2025 Senate File 6 (ch. 41) added W.S. 1-21-1401 through 1-21-1403. Dead bills: 2025 HB0213 (owner utility duties) and 2026 HB0183 (renter tax relief), both not considered for introduction. The next regular session is January 2027.