Illinois Schedule VDA – Voluntary Disclosure Agreement Form (2026)
Last reviewed: 2025-11-07
Use the Illinois Tax Form Calculator Schedule VDA: Voluntary Disclosure Agreement Form as a stand alone tax form calculator to quickly calculate specific amounts for your 2026 Illinois state tax return. Alternatively, you can use one of our Combined Federal and State Tax Estimators to quickly calculate your salary, tax, and take-home pay.
Schedule VDA supports taxpayers entering into a Voluntary Disclosure Agreement (VDA) with the Illinois Department of Revenue. This program allows individuals and businesses that have not filed or fully reported taxes to come forward voluntarily, pay back taxes for a limited lookback period, and receive penalty relief and reduced exposure. For individual taxpayers, it is often used to correct non-filed Illinois income tax returns or previously unreported out-of-state income.
When to Use Schedule VDA
Use this form if you are disclosing previously unreported Illinois taxable income and wish to calculate the tax due under the terms of your voluntary disclosure agreement. Typically, the Illinois DOR limits assessments to the most recent 3 years and waives penalties in full when the disclosure is made in good faith and before official contact.
How the Illinois VDA Program Works
- You (or your representative) contact the Illinois Department of Revenue anonymously to request participation in the VDA program.
- If accepted, you must file the missing returns and pay tax for the designated lookback period (generally 3 years).
- Penalties are typically waived, and interest is limited to statutory requirements.
- Schedule VDA helps calculate your disclosure liability, documenting prior unreported income, tax computation, and penalty relief.
Once completed, attach Schedule VDA to your IL-1040 filings covering the lookback period and include payment for the disclosed liability.
| 1 | Total previously unreported Illinois income for disclosure period | |
| 2 | Illinois tax rate (4.95%) × Line 1 | |
| 3 | Number of years disclosed (standard 3 years) | |
| 4 | Total Illinois tax for disclosure period (Line 2 × Line 3) | |
| 5 | Penalty waiver percentage (typically 100%) | |
| 6 | Net Illinois tax liability due (Line 4 × (100% − Line 5%)) |
Benefits of Voluntary Disclosure
Participating in the VDA program allows you to settle back tax obligations without fear of criminal prosecution or excessive penalties. It also prevents the Department from assessing older years beyond the defined lookback period. For most individuals, this means significant savings and restored compliance status.
Example
Example: A taxpayer failed to file Illinois returns for 3 years while earning Illinois-source income. Under VDA, the taxpayer reports $60,000 of unfiled income. At the 4.95% rate, tax due equals $2,970 per year × 3 = $8,910 total. Penalties are waived, leaving only tax and statutory interest payable.
Eligibility and Restrictions
- You must not have been previously contacted by the Illinois DOR regarding the liability.
- Disclosure must be voluntary, truthful, and complete for all relevant tax types.
- Payment must accompany the signed agreement to qualify for penalty waiver.
- VDAs can also apply to sales, use, or business taxes when coordinated through approved channels.
Long-Term Value
Illinois maintains one of the most taxpayer-friendly voluntary compliance programs in the U.S. By proactively disclosing, individuals eliminate legal uncertainty and protect their financial standing. It’s a practical, lawful path to clear past tax obligations and avoid enforcement actions that could otherwise include liens or audits.
Last reviewed: 2025-11-07: If you believe this form requires an update, please contact us.
Related Forms and Resources
- Form IL-1040 – Individual Income Tax Return
- Form IL-1040-X – Amended Return
- Schedule NR – Nonresident and Part-Year Resident
- Visit the Illinois Department of Revenue Voluntary Disclosure Program for official eligibility and application instructions.
Quick Access Tools
Frequently Asked Questions
Do I need to file IL-1040-X if the IRS changes my income?
Yes. If the IRS adjusts your federal return and it affects Illinois tax, you must file IL-1040-X within 120 days of receiving the federal notice.
Are donations made through Schedule G-L tax-deductible?
Yes. Your Schedule G-L donations are eligible for a federal charitable deduction if you itemize on your federal Form 1040 Schedule A. Keep a copy of the filed schedule and any Lottery confirmation of your gift. The contribution will increase your Illinois payment or reduce your refund, but may lower your federal taxable income in the following year.
Changing jobs mid-year in IL
Update income/withholding and frequency; brackets are flat but credits/exemptions still matter.
Who must file Schedule FD?
You must file Schedule FD if you are a former Illinois resident who receives income (such as installment sale gains or deferred bonuses) sourced from Illinois that became taxable for federal purposes during 2026.
What documentation must accompany Schedule 1299-DA?
Attach copies of the other states’ filed tax returns, W-2s, or K-1s showing withholding and payments. Failure to attach proof can lead to denial of the credit. For convenience, you can track and upload copies directly through the MyTax Illinois portal.
Important Notes
All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.