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Free Illinois Late Rent Notice

Illinois late rent notice overview
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An Illinois late rent notice is a landlord’s courtesy demand that rent is past due – it states the rent owed, any lease late fee, and a date to pay by. Illinois sets no statewide grace period: rent is late the day after the lease due date. In Chicago and Cook County, local ordinances cap the late fee. This is not a served 5-day notice; it is the softer first step that often prompts payment before formal eviction is ever needed. Build one below.

Courtesy Notice Chicago / Cook County Caps Auto-Sum Total Free PDF
Updated Q3 2026 By Tenant Screening Background Check Editorial Team Reviewed for Illinois ~11 min read

An Illinois Late Rent Notice is an informal, courtesy demand a landlord sends when a tenant’s rent is past due. It states the past-due rent, any late fee the written lease authorizes, and a clear date to pay by. It is not a statutory eviction notice and does not start any legal clock – it is the softer first contact that usually precedes a 5-day notice to pay rent under 735 ILCS 5/9-209. Illinois sets no statewide statutory grace period for residential rent, and while the state imposes no numeric late-fee cap, the Chicago RLTO and the Cook County RTLO cap late fees for units in those jurisdictions. The form below builds a clean notice and auto-sums the total; our Illinois late fee laws guide covers the fee rules in depth, and the Illinois 5-day notice to pay rent form is the next step if rent stays unpaid.

Key Takeaways

  • A late rent notice is a courtesy demand – it reminds the tenant that rent is past due and asks for payment by a date. It is not a served 5-day notice and starts no legal clock.
  • Illinois has no statewide statutory grace period for residential rent – rent is late the day after the lease due date unless the lease grants a grace window.
  • The state sets no numeric late-fee cap, but the Chicago RLTO ($10/month up to $500 rent + 5% above $500) and the Cook County RTLO ($10/month up to $1,000 + 5% above $1,000) cap the fee in those jurisdictions – and a fee over the cap is unenforceable.
  • A returned or bounced check carries a service charge under 810 ILCS 5/3-806 (greater of $25 or reasonable collection costs), with possible treble damages under the statute after a certified-mail demand.
  • If the tenant does not pay by the date given, the landlord may escalate to a 5-day notice to pay rent under 735 ILCS 5/9-209 – which must demand rent and be served by a statutory method.

Illinois Late Rent Notice at a Glance

Document type

Courtesy demand (not served notice)

Statewide grace

None (lease governs)

Late fee rule

No state cap; Chicago / Cook County caps apply

Next step if unpaid

5-day notice to pay (735 ILCS 5/9-209)

Illinois note: The late rent notice is a soft, non-statutory reminder – it is the low-conflict way to collect before anything formal. It can itemize rent plus a lease late fee together, unlike the later 5-day notice. Because Illinois has no statewide grace period and no statewide late-fee cap, the lease terms do the work in most of the state – but inside the City of Chicago and in suburban Cook County, local ordinances cap the late fee, and a fee above the cap is unenforceable.

$0

statewide statutory grace period – rent is late the day after the lease due date

$10 + 5%

Chicago late-fee cap: $10/month up to $500 rent, plus 5% on the amount above, under the ordinance

5 days

the statutory 735 ILCS 5/9-209 notice to pay that follows if rent stays unpaid

Why send a late rent notice first

Most late payments are oversights, cash-flow gaps, or a forgotten autopay – not the start of a dispute. A prompt, professional late rent notice usually collects the rent without any of the cost, delay, or relationship damage of a formal eviction notice. It also builds a dated paper trail: if the tenant does not respond, you have a clear record that you asked, and you can escalate cleanly to a 5-day notice to pay rent. The form on this page handles the arithmetic and the wording; the guide below covers the Illinois rules – including the Chicago and Cook County caps – that make a late fee enforceable.

What a Late Rent Notice Is and When to Send It

An Illinois late rent notice is a written reminder that a tenant’s rent is past due. It performs three simple jobs: it tells the tenant exactly what is owed (rent, plus any late fee the lease allows, plus any other lease-authorized charge), it asks for payment by a specific date, and it signals – politely – what happens next if the rent stays unpaid. It is a collection tool and a courtesy, not a court document.

It is not a statutory notice. This is the single most important thing to understand about the document. Illinois law does not require a landlord to send a late rent notice, and sending one does not satisfy any legal prerequisite for eviction. The statutory notice for nonpayment is the 5-day notice to pay rent under 735 ILCS 5/9-209, which is a served legal notice with strict content and service rules. The late rent notice sits before that step. It has no legally defined form, no required service method, and no statutory deadline attached to it.

When to send it. Send the late rent notice as soon as rent is actually past due under the lease. Because Illinois has no statewide statutory grace period, “past due” is defined entirely by the lease. If the lease says rent is due on the 1st and imposes a late fee after the 5th, the practical moment to send the notice is on or just after the 6th. Sending it promptly does two things: it maximizes the chance of a quick voluntary payment, and it starts a dated record while the facts are fresh.

Who it is for. The late rent notice is aimed at a cooperative tenant who simply has not paid yet. It is deliberately softer than a served 5-day notice – it does not threaten immediate eviction, it invites payment, and it often preserves the tenancy. For a tenant who is chronically late or clearly not going to pay, many Illinois landlords still send the courtesy notice first (it costs nothing and strengthens the record) but move to the formal 5-day notice quickly if there is no response.

Illinois’s Grace-Period Reality

There is a widespread myth that Illinois gives tenants a three-day or five-day grace period before rent is legally late. It does not. No Illinois statute grants residential tenants a statewide grace period for rent. Rent is legally due, and therefore late the following day, on the date stated in the lease.

Where “grace periods” actually come from. When an Illinois tenant does enjoy a grace period, it comes from one of two places, never from a statewide statute:

  • The written lease. Many Illinois leases voluntarily grant a short grace window – commonly rent due on the 1st with no late fee assessed until after the 3rd or 5th. That is a contract term the landlord chose to offer; the landlord could just as lawfully assess a late fee on the 2nd if the lease so provided, subject to any local ordinance cap discussed below.
  • A local ordinance. Chicago and Cook County regulate late fees for covered units, and a handful of home-rule municipalities have their own rules. These ordinances cap how much a late fee may be, and some frame when it may be charged. Always check the local ordinance for a covered property.

Why this matters for the notice. Because the grace period is a lease term rather than a statutory right, the late rent notice should track the lease. State the actual due date from the lease, confirm any lease grace window has passed, and only then assess the late fee the lease authorizes – capped to the local ordinance if the unit is in Chicago or Cook County. Do not tell a tenant they are “in violation of state law” for paying a day late – they are in breach of the lease, and that distinction matters if the matter is ever litigated.

Common myth to avoid

“Illinois gives tenants a five-day grace period.” No such statutory rule exists. The confusion usually stems from the 5-day notice to pay rent – the statutory notice that gives a tenant at least 5 days to pay before the lease is terminated – which is a completely different thing from a grace period before rent is late. Rent is late the day after the lease due date; the 5-day notice under 735 ILCS 5/9-209 is a later, formal step that only starts once rent is already past due and the landlord decides to pursue eviction.

Illinois Late-Fee Law and the Chicago / Cook County Caps

Illinois has no statewide statutory cap on residential late fees. Statewide, a late fee is a contract term: it must be authorized by the written lease and be reasonable rather than a punitive penalty. What makes Illinois distinctive – and what most tenants and landlords in the Chicago area are actually searching for – is that two of the state’s biggest jurisdictions impose hard numeric caps on the late fee. If your unit is in the City of Chicago or in suburban Cook County, the local cap controls, and a lease fee that exceeds it is unenforceable.

Chicago RLTO late-fee cap (section 5-12-140)

Under the Chicago Residential Landlord and Tenant Ordinance, section 5-12-140, this statutory cap limits a landlord of a covered unit to a late fee of no more than $10 per month on rent of $500 or less, plus 5 percent per month on the portion of the monthly rent that exceeds $500. The statutory cap is a formula, not a flat number, and a fee above it is an unlawful charge for which a tenant may recover damages under section 5-12-140:

  • Rent of $500 or less: the section 5-12-140 statutory maximum late fee is $10 per month.
  • Rent above $500: the statutory maximum is $10 plus 5 percent of the amount over $500. On $1,200 rent, that section 5-12-140 cap is $10 + 5% of $700 = $10 + $35 = $45 per month maximum; charging above it lets the tenant recover statutory damages.

The Chicago RLTO covers most rental units inside the city, with narrow exemptions such as owner-occupied buildings of six or fewer units. Charging more than the section 5-12-140 cap is not just unenforceable – under the ordinance a tenant may recover statutory damages for an unlawful fee. This is a case where the “reasonable fee” framing of the statute is replaced by a precise statutory ceiling, and the late rent notice must respect it.

Cook County RTLO late-fee cap

The Cook County Residential Tenant and Landlord Ordinance took effect June 1, 2021 and applies to most residential rentals in suburban Cook County outside the City of Chicago (and outside a few home-rule municipalities that opted out). Its statutory late-fee cap is $10 per month on the first $1,000 of monthly rent, plus 5 percent per month on the amount above $1,000. On $1,600 rent in covered suburban Cook County, the statutory maximum late fee is $10 + 5% of $600 = $10 + $30 = $40 per month; a fee above this statutory cap is unenforceable and lets the tenant recover damages. As with Chicago, exceeding the statutory ceiling exposes the landlord to tenant remedies.

JurisdictionLate-fee cap (monthly)Worked example
City of Chicago (RLTO)Statutory section 5-12-140 cap: $10 on rent up to $500, plus 5% on the amount over $500$1,200 rent → $10 + 5% of $700 = $45 statutory max
Suburban Cook County (RTLO)Statutory cap: $10 on the first $1,000, plus 5% on the amount over $1,000$1,600 rent → $10 + 5% of $600 = $40 statutory max
Rest of IllinoisNo statewide numeric statutory cap – lease term, reasonable, non-punitiveKeep it modest and lease-authorized; avoid punitive penalty fees

Outside Chicago and Cook County

In the rest of Illinois there is no fixed dollar or percentage cap set by statute. That does not mean anything goes: a late fee still must be authorized by the written lease, and a fee that functions as a punitive penalty rather than a reasonable charge for the administrative cost and lost use of late money invites a challenge. Prudent landlords statewide keep late fees modest and defensible:

  • Put it in the written lease. A late fee not authorized by the lease cannot be charged at all. The lease should state the amount (or formula), when it applies, and any grace window.
  • Respect the local cap. If the unit is in Chicago or suburban Cook County, the ordinance ceiling controls even if the lease names a higher number – the lease term above the cap is simply unenforceable.
  • Keep it modest. A small flat fee or a low single-digit percentage of the monthly rent is far easier to defend as compensatory than a large flat sum or a high percentage.
  • Charge it once, not daily. A one-time late fee per late payment is generally defensible. A fee that compounds every day the rent is late looks punitive and invites a penalty challenge – and in Chicago and Cook County the monthly cap constrains it directly.

Keep the late fee inside the local cap

If the property is in the City of Chicago or suburban Cook County, do not put a late fee on this notice that exceeds the ordinance ceiling – even if the lease names a higher figure. The excess is unenforceable, and the statute lets the tenant pursue damages for an illegal late fee. When in doubt, compute the cap ($10 plus 5 percent of the rent over the threshold) and charge no more than that.

How to Calculate the Total Now Due

The late rent notice states one figure the tenant can pay to bring the account current. Build it from the lease, line by line, and let the form total it for you:

Line itemWhat it isIllinois note
Past-due rentThe unpaid rent for the period covered.The core amount. Precise to the cent.
Late feeThe fee the written lease authorizes for late payment.Must be lease-authorized; capped by the Chicago RLTO or Cook County RTLO if the unit is in those jurisdictions.
NSF / returned-check feeCharge for a bounced rent check.Recoverable under 810 ILCS 5/3-806 (greater of $25 or reasonable collection costs), if the lease allows.
Other lease chargesUtility reimbursements or similar, if the lease provides.Only charges the lease actually authorizes.
Total now dueThe sum the tenant pays to cure.Auto-summed by the form below.

Worked example (Chicago unit). Rent is $1,200, due on the 1st, with a lease late fee assessed after the 5th. The tenant has not paid by the 8th. The statutory maximum Chicago late fee under section 5-12-140 is $10 + 5% of $700 = $45. The late rent notice states $1,200 past-due rent plus a $45 late fee (within the statutory cap), for a total of $1,245 due. If the tenant’s earlier rent check had bounced, the lease could also add a $25 returned-check service charge under the statute (section 3-806, 810 ILCS 5/3-806, which lets the holder recover the check plus damages), bringing the total to $1,270. The form adds these for you and prints a single clear total.

Build the Late Rent Notice

Complete the form below to generate a clean Illinois late rent notice. Enter the rent past due and any lease late fee or other charge; the form auto-sums the total and prints a professional PDF you can deliver to the tenant. Remember: this is a courtesy demand, so the payment methods you select are how the tenant can pay you – not legal service methods. If the unit is in Chicago or Cook County, keep the late fee within the local ordinance cap.

1. Landlord / Property Manager

2. Tenant and Property

3. Amounts Owed

Total now due:

4. Accepted Payment Methods

5. Signature

Late Rent Notice vs. 5-Day Notice to Pay Rent

These are two different documents that do two different jobs. Confusing them is the most common mistake landlords make with late rent. The late rent notice is a courtesy; the 5-day notice under the statute is the step that opens the door to eviction.

 Late Rent Notice5-Day Notice to Pay Rent
Legal statusInformal courtesy demand; not required by statuteStatutory notice required before eviction (735 ILCS 5/9-209)
What it can demandRent, late fee, and other lease charges togetherRent due – the statutory demand focuses on the unpaid rent
DeadlineA pay-by date you choose (courtesy)Not less than 5 days after service before the lease may be terminated
DeliveryPractical: email, hand, or mailStatutory service under the Eviction Article required
What followsIf unpaid, escalate to the 5-day noticeIf unpaid, file an eviction action

The sequence in practice. Rent comes due and is not paid; the landlord sends this courtesy late rent notice with a pay-by date. Most of the time, the tenant pays and the tenancy continues. If the tenant still does not pay, the landlord moves to the formal step: an Illinois 5-day notice to pay rent, served by a statutory method, demanding the rent due. If that notice period expires unpaid, the landlord may file an eviction action. Our Illinois eviction notice laws guide walks through that formal process end to end.

Key distinction

The late rent notice may itemize rent plus the late fee; the statutory 5-day notice under 735 ILCS 5/9-209 is the served step that actually starts the eviction clock. Send the courtesy notice first to collect quietly – and if you have to escalate, prepare the 5-day notice carefully and serve it by a statutory method.

NSF and Returned-Check Charges

When a tenant’s rent check bounces, Illinois law lets a landlord recover more than just the rent. Two statutes frame the remedies:

  • Service charge under 810 ILCS 5/3-806. The holder of a dishonored check may recover the amount of the check plus the greater of $25 or the reasonable costs of collection (including reasonable fees). To recover more than the flat $25, the holder must first send a written demand by certified mail and give the check writer 30 days to make the check good.
  • Treble damages under 720 ILCS 5/17-1. After a proper written certified-mail demand goes unpaid, the payee may pursue treble (triple) damages under the statute – at least $100 and up to $1,500 – plus attorney fees and court costs. This is a stronger remedy that requires following the statute’s demand procedure precisely.
  • Put it in the lease. As with the late fee, the returned-check charge should be authorized by the written lease. It can be itemized on this courtesy late rent notice alongside the rent and any late fee.

A bounced check often means the rent is now late as well, so a single late rent notice can capture the past-due rent, the lease late fee (within any local cap), and the returned-check service charge in one total – which is exactly what the form’s “other charges” field is for.

Delivering the Late Rent Notice

Because a late rent notice is a courtesy reminder and not a served statutory notice, there is no legal service method to satisfy. Any practical delivery works – the goal is simply to get the notice in front of the tenant and keep a record that you did. Choose the method that fits your relationship with the tenant and your lease’s communication terms.

Email

Fast

The quickest, most trackable option for most modern tenancies. Send the PDF as an attachment, keep the sent message, and you have a time-stamped record. If the lease designates email for notices, this is clean and convenient.

Hand delivery

Personal

Handing the notice to the tenant directly is simple and immediate. Note the date and time you delivered it. This can also open a constructive conversation about a payment date.

First-class mail

Paper trail

Mailing a copy creates a durable record. Keep a copy of what you sent and the date mailed. Mail is slower, so account for transit time when you set the pay-by date.

Keep a dated copy

Whatever method you use, retain a dated copy of the notice and a note of how and when you delivered it. This is not a legal requirement for a courtesy notice, but if the tenant does not pay and you escalate to a formal 5-day notice to pay rent, that record shows you gave the tenant a fair chance to cure – useful context for the file, even though the 5-day notice will have its own strict statutory service.

Common Mistakes to Avoid

  • Treating the late notice as a legal eviction notice. It is not. It starts no clock and satisfies no statutory prerequisite. Do not rely on it to support an eviction action – only a properly served 5-day notice to pay rent under 735 ILCS 5/9-209 does that.
  • Charging a late fee that is not in the lease. If the written lease does not authorize a late fee, you cannot charge one. The lease is the source of the fee, and any local ordinance sets the ceiling.
  • Ignoring the Chicago or Cook County cap. A late fee above the ordinance ceiling is unenforceable in those jurisdictions, and the statute lets a tenant recover damages for an unlawful fee. Compute the cap and stay within it.
  • Assuming a statewide grace period exists. Illinois grants none. Rent is late the day after the lease due date; any grace window is a lease term or a local ordinance, not statewide law.
  • Confusing the courtesy notice with the 5-day notice. The statutory 5-day notice to pay rent is the served step that starts the eviction timeline. Do not send only a courtesy notice and expect it to support a filing.
  • Skipping the certified-mail demand for a bounced check. To recover more than the flat $25 service charge or to pursue treble damages, the statute requires a proper written certified-mail demand first. Missing that step can sink the enhanced remedy.

Landlord and Tenant Tips

For landlords

Send the notice promptly and keep the tone professional rather than adversarial – the goal is to get paid, not to pick a fight. Be precise about the numbers: state the rent, the lease late fee, and any returned-check or other charge as separate lines so the tenant can see exactly how the total was built. If the unit is in Chicago or suburban Cook County, compute the ordinance cap and keep the late fee at or below it. Set a realistic pay-by date that gives a cooperative tenant a genuine window to respond. Apply your late-fee policy consistently across all tenants; selective enforcement invites disputes and can look discriminatory. And if the tenant does not respond by the pay-by date, do not wait indefinitely – escalate to the formal 5-day notice so the clock actually starts.

For tenants

A late rent notice is a chance to fix the problem before it becomes a formal eviction step. Read the itemized amounts and confirm the late fee matches what your lease actually says – and, if your unit is in Chicago or Cook County, that it does not exceed the ordinance cap. Pay by the date given if you can, and if you cannot pay in full, contact the landlord immediately to discuss a payment arrangement; a documented good-faith plan is far better than silence. Remember that the courtesy notice is not the eviction – but ignoring it is how a manageable late payment turns into a served 5-day notice and, eventually, a court case.

How Some States Differ

Illinois is distinctive: it sets no statewide grace period and no statewide numeric late-fee cap, yet two of its largest jurisdictions – the City of Chicago and suburban Cook County – impose precise local caps that override the lease. Other states take different approaches, which is why a late rent notice must be built to the specific state and, in Illinois, the specific locality. Some states impose a mandatory grace period before rent is legally late (for example, a set number of days after the due date), and some cap the late fee at a fixed percentage of the monthly rent or a flat dollar amount statewide rather than by ordinance. Because these rules vary so widely, this page stays Illinois-specific; if you rent elsewhere, use the version of this form built for your state and confirm that state’s grace-period and fee rules.

Illinois Reference Table

AuthoritySubjectKey point
Statewide (no statute)Grace periodNo statewide statutory grace period; rent is late the day after the lease due date
Chicago RLTO 5-12-140Late-fee cap$10/month on rent up to $500 plus 5% per month on the amount above $500; excess unenforceable
Cook County RTLOLate-fee cap$10/month on the first $1,000 plus 5% per month above $1,000; effective June 1, 2021
810 ILCS 5/3-806Returned checksRecover the check amount plus the greater of $25 or reasonable collection costs; 30-day certified-mail demand to exceed $25
720 ILCS 5/17-1Bad-check civil remedyTreble damages of at least $100 up to $1,500 plus fees after a proper certified-mail demand
735 ILCS 5/9-2095-day notice to pay rentThe statutory next step if rent stays unpaid; not less than 5 days, then eviction may follow

Statewide grace and late-fee rules turn on the lease, while the Chicago and Cook County ordinances layer hard caps on top for covered units. For the fee rules in depth see our Illinois late fee laws guide, and for the broader picture our Illinois landlord-tenant laws overview.

Frequently Asked Questions

Does Illinois have a grace period for late rent?

No. Illinois sets no statewide statutory grace period for residential rent. Rent is legally late the day after the due date stated in the lease. A grace period exists only if the written lease grants one, or if a local ordinance requires it. Many leases include a short grace window (for example, rent due on the 1st with a late fee after the 5th), but that comes from the lease, not from state law.

How much can an Illinois landlord charge as a late fee?

Statewide, Illinois has no fixed dollar cap on residential late fees – the fee must be reasonable and authorized by the written lease. But local ordinances impose hard caps. In the City of Chicago, the RLTO (section 5-12-140) limits the late fee to $10 per month on rent up to $500 plus 5 percent per month on the portion of rent above $500. In suburban Cook County, the RTLO caps the fee at $10 per month on the first $1,000 of rent plus 5 percent per month on the amount above $1,000. A lease late fee that exceeds the local cap is unenforceable, and a tenant may recover damages for an illegal fee.

Is a late rent notice the same as a 5-day notice to pay rent?

No. A late rent notice is an informal courtesy demand that rent is past due; it is not a statutory eviction notice and does not start any legal clock. A 5-day notice to pay rent under 735 ILCS 5/9-209 is the formal, served statutory notice that an Illinois landlord must deliver before filing an eviction action for nonpayment. The late notice typically comes first and often prompts payment before a formal notice is ever needed.

What is the Chicago RLTO late-fee cap?

Under the Chicago Residential Landlord and Tenant Ordinance, section 5-12-140, a landlord may charge a late fee of no more than $10 per month on rent of $500 or less, plus 5 percent per month on the portion of the monthly rent that exceeds $500. For example, on $1,200 rent the maximum monthly late fee is $10 plus 5 percent of $700, or $10 + $35 = $45. A lease that charges more than this cap is unenforceable, and the tenant may recover statutory damages under the ordinance.

What can I charge for a returned or bounced rent check in Illinois?

Under 810 ILCS 5/3-806, the holder of a dishonored check may recover the amount of the check plus the greater of $25 or the reasonable costs of collection, but to recover more than $25 the holder must first send a 30-day written demand by certified mail. Separately, 720 ILCS 5/17-1 allows a civil claim for treble damages – at least $100 and up to $1,500 – plus attorney fees and costs after a proper certified-mail demand goes unpaid. The lease should authorize any returned-check charge, and it can be itemized on this courtesy notice.

How should I deliver an Illinois late rent notice?

Because a late rent notice is a courtesy reminder and not a served statutory notice, there is no legal service method to satisfy. Practical delivery – email, hand delivery, or first-class mail – is fine. Keep a dated copy and note how and when you delivered it. If the tenant does not pay and you escalate to a 5-day notice to pay rent under 735 ILCS 5/9-209, that notice must then be served by a statutory method under the Eviction Article of the Code of Civil Procedure.

Do the Chicago and Cook County caps apply to my property?

The Chicago RLTO applies to most rental units inside the City of Chicago, with narrow exemptions (such as owner-occupied buildings of six or fewer units). The Cook County RTLO applies to most residential rentals in suburban Cook County outside Chicago and a few home-rule municipalities that opted out, and it took effect June 1, 2021. Outside those jurisdictions, Illinois has no statewide numeric late-fee cap, so the lease term and a general reasonableness expectation govern. Always confirm which ordinance, if any, covers the property’s exact address.

Can I refuse a partial payment after sending a late rent notice?

A late rent notice is informal, so accepting a partial payment does not carry the same waiver risk as accepting partial rent after a served 5-day notice. Still, apply payments consistently and document the balance. If you plan to escalate to a formal 5-day notice under the statute, be aware that accepting rent after that served notice can affect the notice and may force you to start over, so track payments carefully.

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Legal Disclaimer: This Illinois late rent notice template and the accompanying guidance are provided for general informational purposes only and are not legal advice. A late rent notice is a courtesy demand, not a statutory eviction notice; the formal notice for nonpayment is a 5-day notice to pay rent under 735 ILCS 5/9-209. Illinois late-fee rules turn on the lease and, for units in the City of Chicago or suburban Cook County, on the local ordinance caps (Chicago RLTO section 5-12-140; Cook County RTLO). Returned-check rules (810 ILCS 5/3-806; 720 ILCS 5/17-1) are technical and fact-dependent. Always verify current requirements with the Illinois Compiled Statutes as currently in effect, the applicable local ordinance, and a qualified Illinois landlord-tenant attorney before relying on this notice. For the formal next step, see our Illinois 5-day notice to pay rent form and our Illinois eviction notice laws guide.