Illinois Personal Property Replacement Tax (PPRT): Complete Guide
Illinois imposes the Personal Property Replacement Tax (PPRT) on ALL entities doing business in IL — including pass-through LLCs and S-corps that owe no corporate income tax elsewhere. Rates are 2.5% for C-corps and 1.5% for S-corps, partnerships, and trusts.
Illinois's Personal Property Replacement Tax (PPRT) is an additional income tax on every business entity doing business in Illinois. C-corporations pay 2.5% (on top of the 7% Illinois corporate income tax, for a combined 9.5%). S-corporations, partnerships, and trusts pay 1.5% — even though they don't pay Illinois corporate income tax. PPRT is reported on IL-1120 or IL-1120-ST and is due the 15th day of the 4th month after year-end (April 15 for calendar-year filers).
Who Owes It
- Every C-corporation doing business in Illinois — pays 2.5% PPRT on top of 7% corporate income tax
- S-corporations, partnerships, LLCs, and trusts doing business in IL — pay 1.5% PPRT (their owners separately pay IL personal income tax)
- Out-of-state entities with Illinois nexus (physical or economic — $100,000 in IL sales or 200+ IL transactions)
- Sole proprietors and disregarded entities are EXEMPT — PPRT only hits entities
- Real estate investment trusts (REITs) — PPRT applies even when federal income is zeroed out by the dividends-paid deduction
Filing Details
- Due date
- 15th day of the 4th month after year-end. Calendar-year: April 15. 7-month extension available via IL-505-B (extends time to file but not to pay).
- Minimum tax
- No flat minimum. Entities below de minimis thresholds may file zero returns.
- Maximum / rate
- No cap — 1.5%/2.5% applies to all Illinois-apportioned net income.
- How to file
- Online via MyTax Illinois (mytax.illinois.gov). Paper IL-1120, IL-1120-ST, IL-1065 still accepted.
- Payee
- Illinois Department of Revenue. Payment via ACH debit, ACH credit, credit card, or check.
Most Common Problems
The patterns we see most often when clients come to us with Illinois Personal Property Replacement Tax (PPRT) problems.
1. Pass-through owners missing PPRT entirely
Many S-corp and partnership owners assume they have no Illinois entity-level tax because there's no IL corporate income tax on pass-throughs. They miss the 1.5% PPRT, file no IL-1120-ST or IL-1065, and accumulate years of failure-to-file penalties.
2. Apportionment disputes — single-sales-factor sourcing
Illinois uses single-sales-factor apportionment with market-based sourcing for services. Out-of-state pass-through entities with IL customers face audit pressure on whether their IL-sourced receipts cross the bright-line nexus threshold.
3. Late or amended K-1 cascade
An amended federal K-1 typically requires an amended IL-1065 or IL-1120-ST, which cascades to amended IL-1040 returns for every owner. Failure to flow amendments through triggers IL DOR matching notices and assessments to both the entity and owners.
4. Combined-group reporting errors
Affiliated C-corps doing business in IL must file a combined return (Schedule UB). Filing separately when combination is required produces double-counted apportionment and missed inter-company eliminations. Reverse problem: filing combined when ineligible also triggers assessment.
How to Fix It: Step-by-Step Resolution
The same playbook our attorneys use when a new client walks in with Illinois Personal Property Replacement Tax (PPRT) delinquency.
- 1
Pull all IL-1120/IL-1120-ST/IL-1065 transcripts from IL DOR
Request a complete account history via MyTax Illinois showing every period, assessment, penalty, and lien. Compare to your filed returns to identify missing periods and estimated-tax assessments.
- 2
File all missing IL-1120, IL-1120-ST, or IL-1065 returns
Failure-to-file is 2% per month, capped at 20% (minimum $250). Filing zero or actual returns replaces IL DOR's estimated assessments and stops penalty stacking.
- 3
Request penalty abatement under 35 ILCS 735/3-8
Illinois grants reasonable-cause penalty waiver and first-time-offender abatement. Submit a written request via MyTax Illinois with documentation of cause (illness, fire, professional reliance).
- 4
Negotiate an installment payment plan
Illinois offers payment plans up to 24 months for balances under $5,000 (online auto-approval) and up to 72 months with financial disclosure for larger balances. Liens are released only after final payment.
- 5
Appeal to the Illinois Independent Tax Tribunal
For assessments over $15,000, taxpayers must appeal to the Illinois Independent Tax Tribunal within 60 days. Below $15,000, appeal goes to the IL DOR Informal Conference Board. Missing the deadline forfeits administrative review.
Penalties & Consequences
Late filing: 2% per month, capped at 20% (minimum $250 for entities). Late payment: 2% (if 30 days late) to 15%. Failure to file: penalties stack with interest at the federal short-term rate + 3%. Trust-fund-recovery for IL withholding and sales tax under 35 ILCS 735/3-7 imposes personal officer liability.
Why a Tax Attorney (Not Just Your Registered Agent)
Illinois PPRT cases bundle with IL corporate income tax, sales tax, employer withholding, and personal officer liability. The Tax Tribunal process is technical and the 60-day deadline is jurisdictional. A tax attorney coordinates the entity-level PPRT defense with the parallel personal trust-fund officer cases — protecting both the company and its officers in one engagement.
Frequently Asked Questions
Why do S-corps and partnerships owe Illinois Personal Property Replacement Tax?+
PPRT was created in 1979 as a replacement for the personal-property tax that local governments lost when the Illinois Constitution abolished it. To replace that local revenue, Illinois imposes PPRT on ALL business entities — including S-corps and partnerships that owe no corporate income tax. The rate is 1.5% for pass-throughs (vs. 2.5% for C-corps).
What's the combined Illinois corporate tax rate?+
C-corporations pay 7% corporate income tax PLUS 2.5% PPRT = 9.5% combined on Illinois-apportioned net income. S-corporations, partnerships, and LLCs pay 1.5% PPRT at the entity level, with the income flowing through to owners who pay 4.95% IL personal income tax. The total federal-state combined rate for IL pass-throughs can exceed 45%.
Does Illinois have economic nexus for PPRT?+
Yes. Illinois asserts PPRT/income tax nexus over out-of-state entities with $100,000+ in Illinois sales or 200+ separate Illinois transactions (35 ILCS 5/304). This bright-line was added in 2020 following the Wayfair decision and applies to both PPRT and corporate income tax.
Can Illinois hold corporate officers personally liable for PPRT?+
Generally no — PPRT itself is an entity-level liability and not subject to trust-fund officer assessment. BUT: Illinois aggressively asserts personal officer liability for unpaid sales tax and withholding under 35 ILCS 735/3-7, and those assessments are nearly always bundled with PPRT examinations. Officers facing PPRT audits should expect parallel trust-fund exposure.
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Tax Attorney | Civil and Criminal Tax Controversy & Litigation Specialist
Gregory McCauley Jr. is an experienced tax attorney who has personally represented more than 1,000 clients in matters ranging from civil tax controversy and IRS examinations to criminal tax defense, U.S. Tax Court litigation, and complex business disputes. His practice is built on a foundation his clients describe as rare in the tax resolution industry: genuine attention to detail, direct attorney access, and a willingness to litigate when the IRS refuses to be reasonable.
Don’t Overpay Illinois. Don’t Wait for Forfeiture.
Our tax attorneys resolve Illinois Personal Property Replacement Tax (PPRT) delinquency, federal corporate tax exposure, and officer personal liability in one coordinated strategy.
Call (877) 829-5267