How it works. Tick the states where you paid employees or contractors in 2026 and select Show my deadlines. You get one list in date order: the federal 1099 and W-2 dates, then each state's 1099, W-2 and year-end reconciliation dates for the 2027 season, with the official source for each.
Your 2027 filing list: Illinois
Tax year 2026 forms filed in the 2027 season. Federal dates move to the next business day when the regular date is a weekend or holiday (IRS); a state date moves only where the state's page says so, and otherwise we flag it. Bookmark or share this page's address to come back to the same list.
| Due | Where | What to file | Source |
|---|---|---|---|
Monday, February 1, 2027Moved from Jan 31, a Sunday. | Federal (IRS / SSA) | Form W-2 Copy A (with W-3) to SSA, and employee copies | |
Monday, February 1, 2027Moved from Jan 31, a Sunday. | Federal (IRS / SSA) | Form 1099-MISC copies to payees | |
Monday, February 1, 2027Moved from Jan 31, a Sunday. | Federal (IRS / SSA) | Form 1099-NEC to the IRS and to each payee | |
Monday, February 1, 2027Moved from Jan 31, a Sunday. | Illinois | W-2s accepted by IDOR | |
Monday, March 1, 2027Moved from Feb 28, a Sunday. | Federal (IRS / SSA) | Form 1099-MISC to the IRS on paper | |
Wednesday, March 31, 2027 | Federal (IRS / SSA) | Form 1099-MISC to the IRS electronically |
State by state
Illinois
- State 1099 copies
- Not required. IDOR: Forms 1099 other than 1099-K are not included in the electronic filing mandate, 'nor are they required to be submitted to Illinois.' Pub-110 adds that IDOR may request them and that payers may voluntarily file 1099s reporting Illinois withholding. Form 1099-K must be filed electronically with Illinois.
- IRS CF/SF
- Not in the program
- Year-end form
- None: Illinois does not require an annual reconciliation return (Form IL-941 is filed quarterly), due Not applicable
- E-filing
- W-2s, W-2c and W-2G must be filed electronically; without an approved waiver the penalty is $5 per form.
- Official page
- IDOR: Pub-110, Forms Filing and Storage Requirements (January 2024)
The federal threshold for Forms 1099-NEC and most 1099-MISC boxes is now $2,000: the IRS instructions (Rev. December 2026) say that for tax years beginning after 2025 the minimum reporting threshold increased to $2,000 and may be adjusted for inflation beginning in calendar year 2027. States set their own triggers, and several state pages still show older amounts. The 1099 threshold changes page covers the federal side by year.
General information, not tax or legal advice. Checked November 2026 against the official state revenue and IRS pages linked here. Rules, forms and portals change; the state's own instructions and your preparer have the final word. MCC Solutions is not a law firm or a CPA firm, and is not affiliated with any tax agency.
Questions about the finder
Which states should I pick?
Pick every state where you have employees on payroll, plus every state whose residents you paid as contractors or where contractors did the work. State rules key on different things: Connecticut and Delaware look at residents and work done in the state, Missouri at Missouri-source payments of $1,200 or more, Oregon at an Oregon address.
Why does the list start with federal dates?
Because they apply no matter which states you pick: 1099-NEC to the IRS and payees and W-2s to SSA by January 31, which in 2027 is a Sunday, so the IRS date is Monday, February 1, 2027. Form 1099-MISC goes to the IRS by February 28 on paper or March 31 electronically.
What if a state date falls on a weekend?
We move a state's date only when that state's own page says a weekend or holiday date moves to the next business day. Otherwise the list shows the date with a flag, and the safe choice is to file by the Friday before.
Does the finder work without JavaScript?
Yes. The state boxes are a plain form, and the list is built on our server from the address, so a link such as /bookkeeping/1099-w2-filing-deadline-finder?states=nj,ny opens the same list on any device and can be bookmarked or shared.
Is anything I pick stored?
No. The states you pick travel in the page address only; nothing is saved on our side, and there's nothing to sign in to.
Related: State 1099 and W-2 filing requirements · Deadline finder · Do I need to send a 1099? · 1099 deadline calculator · Contractor payment tracker · New hire reporting by state · New 1099 Rules Kit · Year-End Close and 1099 Kit