What Illinois certification means and why you have to do it
Certification is Illinois's term for the weekly form you file to confirm you are still out of work and meet the program rules. You must certify every week you want to receive a payment. If you do not certify, you do not get paid that week — even if you are still unemployed and your claim is active.
Illinois requires you to certify by the important date each week, which is usually Sunday at 11:59 p.m. The exact important date depends on when your claim started and which day of the week you are assigned. You can certify online through the IDES (Illinois Department of Employment Security) website, by phone, or by mail, though online is fastest and most reliable.
When you certify, you are telling the state that you were unemployed during that week, that you looked for work (if required), and that you reported all wages you earned. If any of those things are not true, you must report it on the form itself.
Key Takeaways
- You must certify every week by the important date — usually Sunday at 11:59 p.m. — or you will not be paid that week.
- Online certification through the IDES website is the fastest method and shows confirmation when ready.
- You must report all wages earned during the week, even partial weeks or gig work, because Illinois reduces your payment dollar-for-dollar above a small threshold.
- If you miss a important date, you can still certify late, but your payment will be delayed until the form is processed.
- Common mistakes include forgetting to report work search activities, failing to disclose any income, and certifying for weeks you were not unemployed.
How to certify online through IDES
The online method is the most straightforward. Go to www2.illinois.gov/ides and log in with your username and password. If you do not have an account yet, you will create one during your initial claim filing. Once logged in, look for the "File Weekly Claim" or "Certify" button — the exact wording changes occasionally, but it is always on the main dashboard after you log in.
Click the button and you will see a form asking about the week you are certifying for. The form will ask: Did you work during this week? Did you earn any wages? Did you look for work? Did you refuse any job offers? Answer each question honestly. If you worked, enter the total gross wages (before taxes) that you earned. If you looked for work, you may be asked to list the employers you contacted or the methods you used — this depends on your claim type and whether you are in a work-search requirement period.
After you answer all questions, review the form for accuracy, then submit. You will see a confirmation number on screen. Write it down or take a screenshot. The payment typically processes within two business days if you certify by the important date.
Reporting wages correctly
Illinois reduces your weekly unemployment payment by 50 percent of any wages you earn above $25 per week. This means if you earned $100 in a week, you subtract $25 (the threshold), leaving $75, and then you lose 50 percent of that — so you lose $37.50 from your payment. Report the gross amount (before taxes or deductions) that you earned, not the net amount you took home.
Include all types of income: regular wages from a job, gig work (DoorDash, Uber, freelance), bonuses, commissions, severance, and any other money you were paid. Do not include unemployment payments themselves, tax refunds, or money from savings. If you are unsure whether something counts as wages, report it — it is better to over-report than to under-report and face an overpayment later.
If you worked part of a week — for example, you started a new job on Wednesday — report only the wages you earned during the days you worked. The state will calculate the reduction based on that amount.
What to do if you miss the important date
If you do not certify by the Sunday important date, you can still certify late. Log in and file the form as soon as you remember. Your payment will be delayed — it will not process until after the state receives and reviews your late certification — but you will still receive it once it is approved. Late certifications usually take an extra week or two to process.
If you miss the important date by more than a few days, call the IDES customer service line at 1-800-244-5631 to confirm that your late certification will still be accepted. Some claims have stricter rules about how late you can file, though most allow you to certify up to two weeks late without losing the week entirely.
Do not skip a week hoping to certify it later. If you do not certify for a week, that week is marked as "not claimed" and you lose the payment for that week permanently. You cannot go back and claim it later.
Reporting work search activities
If you are in a work-search requirement period — which applies to most people on regular unemployment insurance — you must look for work each week and report what you did. This does not mean you have to find a job; it means you have to make a genuine effort to search.
Work-search activities include: explore for jobs online or in person, contacting employers by phone or email, attending job fairs or interviews, registering with a staffing agency, taking a training course related to your job search, or meeting with a career counselor. You do not need to submit proof with your certification, but you should keep a record in case the state asks you to verify later.
On the certification form, you will see a question about work search. Answer "yes" if you did search, and you may be asked to list a few examples — such as "applied to three positions on Indeed" or "called two employers about openings." Be specific enough that it is clear you actually searched, not vague.
What happens if you certify incorrectly
If you certify that you were unemployed when you actually worked full-time, or if you fail to report wages, the state will eventually discover the discrepancy — usually when your employer reports your wages to the state or when you file taxes. When that happens, you will be sent an overpayment notice telling you how much you owe back.
You can repay the overpayment in a lump sum, or you can request a payment plan. If you do not repay, the state can deduct future unemployment payments, tax refunds, or other state payments to recover the money. If the error was intentional, you may also face fraud charges, which can result in criminal penalties and a requirement to repay triple the amount owed.
If you made a mistake on a certification — for example, you forgot to report $50 in wages — contact IDES as soon as you realize it. You can file an amended certification, and correcting it yourself looks much better than waiting for the state to catch it.
Phone and mail certification options
If you cannot certify online, you can call the IDES automated phone line at 1-800-244-5631. Follow the prompts to enter your claim number and answer the certification questions using your phone keypad. This method works but is slower than online — you will not get when ready confirmation, and processing takes longer.
Mail certification is rarely used now, but if you request it, IDES will send you a form by mail each week. You fill it out, sign it, and mail it back. This method is the slowest and should only be used if you have no internet access and cannot use the phone line.
Frequently Asked Questions
What if I worked part of the week and was unemployed the rest?
You still certify for that week. Report the wages you earned during the days you worked, and the state will reduce your payment accordingly. You are not disqualified from receiving unemployment just because you worked part of the week.
Do I have to report job offers I turned down?
Yes. If you refused a job offer during the week, you must report it on your certification. The state will then contact you to ask why you refused. If the reason was not valid (for example, the pay was too low or the hours did not suit you), you may lose that week's payment or be disqualified from future payments.
Can I certify early, before the week ends?
No. You can only certify for a week that has already ended. The system will not let you certify until the week is complete. If you try to log in early, you will see a message telling you when you can next certify.
What if I get paid on a day that overlaps two weeks?
Report the wages in the week you actually received the payment, not the week you worked. For example, if you worked Monday through Friday but did not get paid until the following Monday, report those wages in the week you were paid.
Will I lose my unemployment if I miss one certification?
Missing one certification will not permanently close your claim, but you will not receive a payment for that week. If you miss multiple weeks in a row without certifying, IDES may close your claim for non-cooperation. Contact them when ready if you cannot certify for a week so they know you are still interested in receiving benefits.