Contractor offboarding checklist: ending an assignment cleanly
On this page
- W-2 temp and 1099 contractor: what changes at the end
- The checklist
- Final pay: federal floor, state deadlines
- Year-end tax forms
- Records: what to keep and for how long
- Separation notices and unemployment
- Template: end-of-assignment notice
- A filled example
- Mistakes that cost money later
- Questions people ask
This is not legal or tax advice. Final pay deadlines, separation notices and unemployment rules vary by state. The federal points below were checked against Department of Labor, IRS and USCIS pages as of September 2026.
A contractor offboarding checklist covers what has to happen when a contract or temporary assignment ends: telling the worker, cutting off access, getting equipment and work product back, paying the last hours or invoice correctly, filing year-end tax forms, keeping the right records for the right time, and deciding whether you would place or hire the person again. Most of the risk sits in two places: access that stays open after the worker leaves, and a final payment that misses a state deadline.
The checklist differs depending on whether the worker was a W-2 employee (usually of a staffing agency) or a 1099 independent contractor paid as a business. It is the counterpart to the contractor onboarding checklist; if you are not sure which kind of worker you have, the misclassification guide explains the tests.
W-2 temp and 1099 contractor: what changes at the end
| Step | W-2 temp or contract employee | 1099 independent contractor |
|---|---|---|
| How the end is triggered | Assignment end date, client request or resignation | Contract term ends, deliverable accepted, or termination clause used |
| Final payment | Final paycheck on the state's schedule | Final invoice paid on the contract's terms |
| Year-end tax form | Form W-2 | Form 1099-NEC if payments reach the threshold |
| Form I-9 | Keep for the retention period | None was required |
| Unemployment | May be eligible; some states require a notice at separation | Generally not an employer question, if genuinely independent |
| Benefits | Coverage end dates and any continuation notices | None |
| Intellectual property | Usually covered by the employment or assignment agreement | Confirm the contract's assignment clause and get files delivered |
The checklist
| When | Task | Owner |
|---|---|---|
| As soon as the end is known | Confirm the end date in writing with the client and the worker | Recruiter or account manager |
| As soon as the end is known | Check the contract for notice periods, conversion clauses and early-termination terms | Account manager |
| Last week | List the work to hand over: open tasks, files, credentials the worker created, contacts | Client manager |
| Last week | Schedule the return of equipment, badge and keys; send a prepaid label to remote workers | Client or agency, per contract |
| Last day | Remove system access, shared drive access, email and chat accounts by end of day | Client IT |
| Last day | Collect the final timesheet (W-2) or confirm the final invoice amount (1099) | Agency payroll or accounts payable |
| Last day | Give any separation notice the work state requires | Agency (W-2) |
| By the state deadline | Issue final pay, including any accrued pay the state requires to be paid out | Agency payroll |
| First week after | Short exit conversation and rehire-eligibility note | Recruiter |
| First week after | Record the I-9 purge date and move the file to inactive | Agency compliance |
| January | Issue Form W-2 or Form 1099-NEC | Payroll or accounts payable |
Final pay: federal floor, state deadlines
The Department of Labor's position is short: "Employers are not required by federal law to give former employees their final paycheck immediately" (DOL, Last Paycheck, as of September 2026). The deadline, if there is one, comes from state law, and it often depends on whether the worker quit or was let go and whether they gave notice. Some states require payment on the last day for involuntary separations. A staffing agency with workers in several states should keep a one-line rule per state in its payroll calendar rather than looking it up each time.
Two questions to settle before the last day for W-2 temps: whether the state requires accrued, unused vacation or paid time off to be paid out, and whether the end of an assignment counts as a separation at all. At many agencies a worker who finishes one assignment stays on the roster, available for the next one. If your agency treats that as continued employment, say so in its policy and apply it consistently, because it affects final pay timing, unemployment claims and new-hire reporting when the person is placed again.
For a 1099 contractor, final payment follows the contract. Pay the undisputed part of the last invoice on time even if another part is in question; holding the whole amount is a common source of disputes.
Year-end tax forms
- Form W-2 for W-2 temps, furnished to the worker and filed with the Social Security Administration. For 2026 wages the IRS lists February 1, 2027 as the due date, because January 31 falls on a Sunday (General Instructions for Forms W-2 and W-3, as of September 2026). Confirm the worker's mailing address or electronic consent before they leave.
- Form 1099-NEC for independent contractors. For payments made in 2026 the reporting threshold is $2,000, up from $600 for earlier years, and the IRS says it may be adjusted for inflation from 2027; the form is due to the contractor and the IRS by January 31 (Instructions for Forms 1099-MISC and 1099-NEC, as of September 2026). Payments to a contractor's corporation are generally exempt, with exceptions such as legal services.
Check that you have a current Form W-9 for every 1099 contractor before they leave. Chasing a taxpayer identification number in January from someone who finished in June is harder than asking on their last day.
Records: what to keep and for how long
USCIS requires employers to keep a Form I-9 for three years after the date of hire or one year after employment ends, whichever is later (USCIS, Form I-9). Work out the date at offboarding and write it on the file. See I-9 retention rules for worked examples, including workers placed several times.
Also keep, under your own retention policy:
- Timesheets and pay records, which wage-and-hour laws require employers to keep.
- The contract, statements of work, and any written change to rate or scope.
- The written end-of-assignment notice and the reason given.
- Screening results, stored separately and destroyed on schedule.
- Confirmation that equipment was returned and access removed, with the date.
Separation notices and unemployment
Some states require employers to give a written notice about unemployment insurance when employment ends. California, for example, requires employers to give workers who are unemployed or facing unemployment the EDD pamphlet DE 2320, "For Your Benefit". Other states have their own forms. For a W-2 temp, the agency, as employer, gives the notice; the client does not. Put each state's form in the offboarding packet next to the final pay rule.
Template: end-of-assignment notice
Subject: Your assignment at [client] ends on [date]
Hi [name],
[Client] has confirmed that your assignment as [role] will end on
[date]. [One sentence on the reason, if it is simple and agreed:
"The project is complete" / "The client's peak season has ended."]
What happens next:
- Last day on site / online: [date], ending at [time]
- Final timesheet: submit by [date, time] and [approver] will approve it
- Final pay: [date], by [direct deposit / pay card]
- Equipment: please return [laptop, badge] by [date]; [label / drop-off]
- Your W-2 will go to [address on file / your online account]; tell us
if that changes
[State notice, if required, attached.]
We would like to place you again. I will call on [date] to talk about
the next assignment and how this one went.
[Recruiter name, phone]A filled example
Worker: Dana Ruiz, W-2 contract payroll coordinator, placed for a 4-month year-end project.
End: project finished two weeks early. Client told the agency on a Monday; agency confirmed the new end date to Dana the same day in writing.
Access and equipment: client IT removed payroll system access at 5 PM on the last day. Laptop returned by prepaid label within four days.
Pay: final timesheet approved the last day; final pay issued on the date the state rule required. No PTO balance under the agency's policy for this assignment type.
Records: I-9 purge date written on the file. W-2 address confirmed.
Exit call: Dana rated the client site well and flagged a missing system login in week one. Eligible for rehire; note added for the next payroll-season search.
Mistakes that cost money later
| Mistake | What it causes | Fix |
|---|---|---|
| Access left open after the last day | Data exposure, and uncertainty over who did what in a system | Removal on the last day, with the time recorded |
| Final pay run on the normal cycle in a state with a shorter deadline | Waiting-time penalties in some states | A per-state rule in the payroll calendar |
| No written reason for ending the assignment | Conflicting accounts in an unemployment claim or dispute | One factual sentence in the end notice |
| Missing W-9 at year end | Late or incorrect 1099-NEC filing | Check the W-9 on the last day |
| Rehire decision left to memory | Placing someone the client asked not to see again, or losing a strong worker | A rehire-eligibility note with a reason, written that week |
For the exit conversation, the questions in exit interview questions work in a shortened form: what worked on the assignment, what got in the way in the first week, and whether the worker would take another assignment at the same client.
Questions people ask
When is a contractor's final pay due?
Federal law does not require an immediate final paycheck; the Department of Labor says employers are not required by federal law to give former employees their final paycheck immediately. Many states do set a deadline, some as short as the last day of work, so a W-2 temp's final pay follows the law of the state where they worked. For a 1099 contractor, final payment follows the contract's invoice terms.
Do I still send a 1099-NEC if a contractor only worked a few months?
It depends on the total paid in the calendar year, not the length of the engagement. For payments made in 2026, the IRS threshold for Form 1099-NEC is $2,000 to a non-employee for services in the course of business, and the form is due to the contractor and the IRS by January 31, moved to the next business day when that date falls on a weekend.
How long do I keep a departed worker's Form I-9?
USCIS requires employers to keep Form I-9 for three years after the date of hire or one year after employment ends, whichever is later. Calculate the purge date on the day the assignment ends and record it in the file, rather than working it out years later.
Should contractors get an exit interview?
A short one, yes, especially for W-2 temps an agency may want to place again. Ask about the assignment, the client site and the agency's support, and record whether the worker is eligible for rehire and why. Keep it separate from any dispute about the reason the assignment ended.