Illinois Law Prohibits Excessive Retainage

Steven A. Migala and Roman Perchyts • October 30, 2019

It is now illegal in Illinois to withhold retainage of more than 10% in relation to any construction contract. Moreover, once the project is more than 50% complete, the retainage is capped by law to not more than 5%. The 10% maximum limit imposed by the new law codifies what has been a standard rate in the construction industry for retainage. What may be a bigger adjustment in the industry is the requirement to reduce retainage to no more than 5% after the contract is half-complete. This change was introduced by the amendment to the Contractor Prompt Payment Act (815 ILCS 603) (the “Act”) recently signed into law by Governor Pritzker. The Act applies to all construction contracts other than those that are publicly funded or related to the construction of single-family or multiple-family residences with 12 or fewer units. In other words, the amendment will affect all private commercial construction projects.

It is important to note that though this amendment took effect immediately upon signing, it only applies to contracts entered into after the Act’s effective date, August 20, 2019. A developer under an agreement, which was effective prior to August 20, 2019, will not be required to reduce retainage in excess of 10% or 5% to meet the relevant limit. Additionally, the amendment applies to agreements between general contractors and subcontractors the same way it does to agreements between developers and general contractors. Therefore, even if a general contractor remains subject to a higher retainage rate fixed by a contract with the developer that existed prior August 20, 2019, it would be illegal for such contractor to pass down the higher rates to its subcontractors retained after August 20, 2019.

Retainage agreements are no longer a matter of industry custom and contractual freedom, but are now regulated by statute. If you have any questions about whether a retainage agreement complies with the new law, or have any questions or other inquiries about construction contracts in general, seek the legal advice of an attorney.

Should you wish to discuss any legal issues related to construction contracts, please contact attorney Steven Migala at (847) 705-7555 or smigala@lavellelaw.com , or attorney Roman Perchyts at (224) 836-6192 or rperchyts@lavellelaw.com.


This article is provided for informational purposes only and does not constitute legal advice. You should not rely on the information contained in this article without first consulting a licensed attorney.

More News & Resources

Lavelle Law News and Events

$65 Million Sale of Business - Lavelle Law Success Story
By Business Law October 29, 2025
$65 Million Sale of Business – a Lavelle Law Success Story. We were able to effectively negotiate the terms of a complex sale in a manner that enabled both buyer and seller to achieve their objectives.
Free Event. Learn the nuts and bolts of Illinois condominium law.
By Stephen G. Daday and Robyn K. Kish October 27, 2025
Explore the nuts and bolts of condominium law and gain actionable strategies to navigate today’s condominium and HOA challenges in Illinois.
New law provides expanded protection for Illinois residents, increasing key debtor exemptions.
By Timothy M. Hughes October 15, 2025
The Illinois General Assembly enacted Public Act 1738, amending several provisions of the Illinois Code of Civil Procedure to raise debtor exemption limits effective 1.1.26. The new law provides expanded protection for residents, marking the most significant increase to the state’s exemption statutes in over a decade.
Be proactive and put your home in a trust to avoid the time, hassle, and expense of probate court.
By Heather A. McCollum October 13, 2025
A crucial estate planning tool that many people in Illinois overlook is putting their home in a trust. Placing your house in a revocable trust offers multiple benefits. It avoids probate, which can save your family time and money after your death.
IRS Has Started to Phase Out Paper Tax Refund Checks
By Timothy M. Hughes October 10, 2025
In response to Executive Order 14247 requiring the Internal Revenue Service to eliminate the use of physical checks, the U.S. Department of the Treasury announced that paper tax refund checks for individual taxpayers will be phased out.
Join us in our food drive efforts!
By Lavelle Law Charities October 1, 2025
The 2025 Lavelle Law Charities Food Drive benefiting the Schaumburg Township Food Pantry has begun! Join us in our efforts to bring food, dignity, and hope to residents in need who rely on the food pantry. The need is greater than ever this year, as the food pantry serves over 1,300 households each month!
Marital Agreements, Collaborative Divorce, and Child Custody
By Family Law September 24, 2025
Our experienced family law attorneys, Joe Olszowka, Annette Corrigan, and Kristina Buchthal Alkass, discussed three key areas of family law matters: prenuptial/postnuptial agreements, collaborative divorce, and child custody. This video is a recording of their presentation on September 17, 2025.
Lavelle Law Success Story - Dealership Law
By Dealership Law September 24, 2025
Lavelle Law's Dealership Law team saves client thousands for alleged advertising violations.
Should Taylor Swift and Travis Kelce lawyer up? What would their prenup look like?
By Joseph A. Olszowka and Kristina Buchthal Alkass September 12, 2025
Taylor Swift’s engagement to Travis Kelce has made a big splash in the news. In this podcast, Lavelle Law family law attorneys Joe Olszowka and Kristina Buchthal Alkass discuss the importance of prenuptial agreements - and not just for the wealthy.
Who qualifies for the
By Timothy M. Hughes September 10, 2025
The U.S. Treasury Department issued a preliminary list of nearly 70 jobs that qualify for “no tax on tips.” The occupations include a wide range of services spanning from Rickshaw drivers to digital content creators.
More Posts