What is the maximum security deposit in South Jacksonville, Illinois?

Illinois has no statutory limit on security deposits. Landlords should charge a reasonable amount.

How many days does a South Jacksonville landlord have to return a security deposit?

Landlords in South Jacksonville must return the security deposit within 30 days after the tenant moves out. 30 days (statewide); 45 days if deductions (Chicago RLTO)

What is the penalty for not returning a security deposit on time in South Jacksonville?

Tenant may recover up to 2x the deposit plus interest (statewide); Chicago RLTO provides additional penalties The tenant can also recover court costs and attorney fees in most cases.

South Jacksonville Security Deposit Calculator (2026) — Free

One missed deadline. One wrong deduction. That's all it takes to owe 2x penalties in South Jacksonville. Calculate your exact limits before it costs you.

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South Jacksonville Security Deposit by Unit Size

Here are the amounts at South Jacksonville's current Fair Market Rents:

Unit Size	Median Rent	Max Deposit	Penalty Risk
Studio	$774/mo	No limit	$1,548
1-Bedroom	$853/mo	No limit	$1,706
2-Bedroom	$1,063/mo	No limit	$2,126
3-Bedroom	$1,370/mo	No limit	$2,740
4-Bedroom	$1,561/mo	No limit	$3,122

Rents based on HUD Fair Market Rents (FY2026) for State Average.

Penalty Warning

If you fail to return the deposit within 30 days, a South Jacksonville tenant can sue for up to 2x the amount wrongfully withheld, plus attorney fees. Tenant may recover up to 2x the deposit plus interest (statewide); Chicago RLTO provides additional penalties

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For the full breakdown of rules, deadlines, and procedures, see our South Jacksonville Security Deposit Laws guide.

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How we built this calculator: Security Deposit Calculator rules are based on Illinois state statutes (765 ILCS 705 et seq.). Default rent values come from HUD Fair Market Rents (FY2026) for the South Jacksonville area. Last updated: August 2026. This tool provides general information, not legal advice. Consult a licensed attorney for guidance specific to your situation.

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Reviewed by Rachid Abadli

Founder & CEO, LeaseBase · Sacramento landlord · Self-managing since 2019

LeaseBase is a property management platform — not a law firm. Consult an attorney for legal advice specific to your situation.