Year End Playbook
Navigate Year End filing processes, deadlines, and corrections with this comprehensive guide.
Summary
This playbook is your comprehensive guide to Year End. Year End intensifies the quarter-end filing process — employers must complete both 4th quarter and annual filings. Critical annual filings include Form W-2 for employees, 1099 forms for contractors, and annual returns at state, local, and federal levels. Tax agencies recognize this demanding period and extend deadlines for many annual filings to the last day of February. This guide focuses on processes unique to Year End. For Q4 filing processes and policies, check out our Quarter End playbook.
As partner-specific content, please don't share it directly with customers. Reference the Helpful Resources section below for customer-facing educational materials about Year End.
Check Processes and Policies at Year End

Check processes and policies are meant to provide partners with clear guidance on how Year End operations will work. It’s important for operations and support teams to familiarize themselves with the below to know what to expect during Year End.
Key Year End Policies and Processes
- Filing Deadlines: Tax agencies extend deadlines for many annual filings and tax payments until the end of February to accommodate the increased Q4 and Year End workload. Check guarantees filings will be submitted by the agency deadline for all companies in good standing without filing blockers. Set expectations with your customers that some filings will not be completed until February—this is compliant with agency deadlines.
- Company Tax Document Availability: Draft company tax documents will be published to the Company Documents product in two batches. The first batch—covering filings due by the end of January—will be available by the second Monday of January. The second batch—covering filings due by the end of February—will be available by the second Monday of February. These are draft copies of employer filing data only. Once the agency accepts the filing, we'll refresh the document to reflect the finalized data.
- Printing and Mailing W-2s and 1099s: To remain compliant, Check will print and mail W-2s and 1099s for workers without electronic consent and for terminated workers.
- Consent for electronic delivery can be set on the Employee object and Contractor object, and it can be set on a company level on the Company object. Note, the setting on the company object does override any settings on the employee and contractor levels.
- Check will mail W-2s and 1099s to all terminated workers—regardless of employee and contractor electronic consent settings—to ensure they can access these documents even if they've lost access to online portals. Note, the setting on the company object does override this.
- Check will mail new W-2s and W-2Cs until the personal tax return deadline of April 15th. After that, the company should plan to print the copy made available and send to the employee.
- Check does not currently have support for mailing 1099-NEC corrections — the company should plan to print the copy made available and send to the contractor.
- These documents will be mailed to the resident address stored on the Employee object and Contractor object.
- How Corrections are Handled at Year End: Corrections at Year End work the same way they do during any other filing period. Corrections can be submitted anytime through our Help Center. The SLA for corrections is 20 business days, but this SLA pauses during January while our team focuses on original filings. The SLA resumes on the first business day of February. To avoid needing amendments, advise your customers to submit corrections by early December—this gives our team time to complete them before December 31st.
- Amending W-2s: Check automates the most common situations that trigger W-2Cs, ensuring employees receive copies quickly. New drafts are furnished via the Employee Tax Statements and Tax Packages APIs and the Filing Preview Component by the Monday following any system changes.
- If pay history corrections affect values reported in W-2 Boxes 1–13 or 16–19 (state and local), a W-2C draft will automatically be made available by the following Monday and any required agency filings will be completed thereafter without a Support request.
- If an employee's SSN is updated in the system, Federal W-2C drafts will automatically be made available by the following Monday, and the Federal filing will be completed without a Support request. A Support ticket is only required to request SSN updates on state and local filings.
- We do not automatically furnish or file W-2Cs for employee name changes—agencies prioritize the SSN field, so these amendments are not required. If your employee requests a name change amendment, update their name in our system and submit a Support ticket to request a W-2C.
- Updates to employer FEIN or EIN values are more complex. They often result in two sets of amendments—one for the previously reported FEIN/EIN and one for the new FEIN/EIN. Reach out to Support to request these changes and note that this process may take longer to resolve.
- No W-2C amendments are required for changes to the address field or values in Box 14. Check does not furnish W-2C copies for these situations. If your employee needs updated Box 14 information for their personal tax returns, they can retrieve these values from pay stubs or payroll journals.
- If you add an employee to pay history for the prior year who didn't previously have any wages, this will generate a new W-2 (not a W-2C) for the missed employee. These W-2s are triggered automatically, with a draft copy available the Monday following the addition of wages.
- Amending 1099s: Changes to 1099s are not yet automated. Please contact our Support team for any changes needed to contractor 1099-NEC filings.
- Holiday Coverage: There are a number of holidays around the Year End period where Check Support is closed. If any technical incidents arise, our team will be paged and will respond accordingly. Check and banks will be closed on the following days:
- Thanksgiving Day
- Christmas Day
- New Years Day
- Martin Luther King Day
- President’s Day
How You Should Prepare Your Customers

To ensure your customers have a successful Year End filing, all of their data must be correct and comprehensive. Customers often forget to include payrolls or workers paid outside the system. Below are the most important pieces of data to verify.
Ensure all of their Data is Correct
- Company Data: Confirm that all Federal, State, and Local IDs are present and accurate. For companies that have applied for IDs, ensure the correct IDs are entered so filing can be completed.
- Employee Data: Review employee SSNs to confirm they are present and accurate—missing SSNs are a top driver of failed filings and year-end amendments. Confirm resident addresses to ensure W-2s are delivered to the right location if the worker will receive a mailed copy. Verify workplaces reflect the correct location where the employee is actually working.
- Contractor Data: Review contractor SSNs or tax identification numbers to confirm they are present and accurate—missing or incorrect identifiers are a top driver of failed filings and year-end amendments. Verify the contractor is correctly classified as an individual or business. Confirm the contractor address is correct if they will receive a mailed 1099-NEC.
- Payroll Corrections: Advise your customers to submit any payroll corrections as soon as possible to have them included in Year End filing. This includes voiding payrolls, moving wages, adding benefits, or making other adjustments.
Include any Missing Data
- Add workers paid outside the system, including terminated workers: Check can only process W-2s or 1099s for workers in our system. Advise your customers to add all workers and their associated payments for filing. Customers who started using your payroll service mid-year may have omitted employees who were terminated before they joined. We need information about all employees and contractors who received wages during the year—even if they were paid through another payroll provider. This ensures the Social Security Administration processes a complete set of W-2 and 1099 forms for the company.
- Report any Disability Payments: Customers may need to report disability benefits to Check if employees took sick leave and received compensation from a third-party insurance company or the state. These benefits are taxable when the employer pays some or all of the premium. The taxable amount depends on the employer's coverage percentage (e.g., 100% covered = 100% taxable, 60% coverage = 60% taxable). The third-party agent withholds FICA taxes and any elected federal withholding from the benefit. Your customer is responsible for the employer portion of FICA and FUTA. State requirements vary. W-2 reporting requirements depend on the arrangement between the third-party agent and your customer. If your customer will file the W-2 for these payments, Check needs the benefit payment amount and taxes withheld for the year. Submit a support ticket with this information, which is typically included on a provided notice. If unsure, have your customer contact their insurance company to confirm whether they will file W-2s on behalf of the employer for those benefit amounts.
- Report any Group Term Life: If your customer does not track group term life insurance per payroll, they may need to report the imputed cost of coverage exceeding $50,000 as part of the employee's income. Calculate the total by following the IRS instructions. GTL imputed income amounts are subject to Social Security and Medicare taxes. Group Term Life can be reported as an earning type in payroll—more detail here.
- 2% Shareholder Earnings: A 2% shareholder is a person who directly or indirectly owns more than 2% of outstanding stock of the corporation or stock possessing more than 2% of the total combined voting power of all of the stock of a corporation.
- 2% shareholders (including spouse, children or grandchildren) are not eligible to participate in cafeteria plans under IRC Section 125.
- 2% Shareholder benefits are taxable non cash fringe benefits provided to 2% shareholders.
- 2% shareholder benefits should be reported as earnings in Check, and full details can be found in this Help Center article. If these haven’t been reported, please submit these earnings as a correction to Check by December 3rd, so these can be accurately reporting in end of year filings.
Verifying Information in Check’s Product
- Check’s Filing Preparation Checklist Component: Check’s Filing Preparation Checklist component, also available through Console, is a one stop shop for your employers to ensure all of their data is up to date for Year End. It can be used to:
- Confirm Company Data: Review all existing Federal and State IDs and fill in IDs that were previous applied for or were missing.
- View W-2s and W-2Cs: Review all Employee W-2 and W-2C drafts to confirm that the information is accurate and the wages are what the employee would expect at that point in the year.
- Other Reminders: Employers will also receive prompts to review and update team information, add payrolls run outside the system, review and report missing benefit data, and prepare for the new year.
- Confirm Company Standing: Check will not file for companies that are not in good standing. Review this status through Check's API by navigating to the company object and checking where
in_good_standingis false. You can also find this in Console on the Company Details page.
- Review Employee and Contractor Data: Review the accuracy of all worker data by auditing Employee objects and Contractor objects in Check. Check for missing or invalid SSNs by reviewing workers and checking their
ssn_validation_statusor if they have aremaining_stepsin Onboard status that includes SSN. You can also review resident addresses and workplace addresses here. To confirm accuracy, present a list of workers to your employers in your application or send an email to each worker with their data on file for confirmation.
- Missing Payrolls: Advise your employers to review their payroll journals for the year to confirm all payrolls are present and accurate. This can be done through Check's API by accessing the Payroll Journal report or by using Check's reports component.
- Reviewing Benefits: To review all benefits set up for your company, use Check's API to list all benefits for a specific worker or company. Your employers can review and confirm all benefits are accurate, then update any benefits that need changes to reflect new contribution amounts and the relevant effective date.
Following the guidance above and reminding your employers to account for any workers or payroll events that happened outside your system will minimize the risk of corrections. We recommend sending these reminders in early November to give employers time to review and submit corrections before year-end. Submit corrections by December 3rd for updates by December 31st. If they aren't updated in time, that's okay—payroll can always be corrected, and we'll update any filings as needed in February.
Executing Year End

Distributing W-2s
You can retrieve draft and filed W-2s anytime via the Employee Tax Statements and Tax Packages APIs and the Filing Preview Component. Data is updated every Monday. W-2s are also published to the document object one week before January 31st. To remain compliant, you must make these documents available for employees to view by January 31st.
Distributing 1099s
You can retrieve contractor 1099-NEC documents from the document object starting one week before January 31st, along with company-level 1096 documents. To remain compliant, you must make these documents available for contractors to view by January 31st.
Obtaining Company Tax Documents
Draft company tax documents will be published to the Company Documents product in two batches. The first batch—covering filings due by the end of January—will be available by the second Monday of January. The second batch—covering filings due by the end of February—will be available by the second Monday of February. These are draft copies of employer filing data only. Once the agency accepts the filing, we'll refresh the document to reflect the finalized data. Since Check has filed on their behalf, your customers should retain them for record-keeping purposes only. Employer copies of W-2 and 1099 information will be stored under Company Tax Documents as well.
Handling Common Year End Requests
- Submitting any Corrections, Amendments or Third Party Sick Pay: To submit any corrections, amendments or third party sick pay, submit these as requests through the Help Center. The only exception is for historical pay adds — those should be submitted directly through Console under the Payrolls tab (details here). As a reminder, amendment processing does not start until the beginning of February, to allow for time for original filings to process.
- Gross Up Payrolls: You may receive requests to support "gross up" payrolls, where the employer wants to pay a specific net amount to their employee (or has already paid them) and needs taxes calculated on top of that amount. Check does not currently support this, but you can use this calculator to determine the required gross pay amount. Then create a corrections template or add it as a historical pay entry in Console using those calculated values.
Helpful Resources

Sample Knowledge Base Content
Feel free to repurpose the content below to go into your own Help Center to help explain Year End or the benefits of electronic delivery:
What is Year End Filing?
Year-end filing is when payroll providers prepare and submit all required annual tax returns for the previous calendar year. This happens in January and February and ensures employers stay compliant with federal, state, and local tax regulations.
Year-end filing includes creating W-2s for employees and 1099s for independent contractors. W-2s summarize annual wages, tax withholdings, and benefits received. 1099s show total amounts paid to contractors throughout the year. Workers need these documents to file their own taxes.
Along with quarterly filing, year-end filing is essential for employers to properly report and pay all taxes—and to provide workers with the documents they need to meet their tax obligations.
Benefits of Electronic Delivery
Receiving a W-2 or 1099 electronically offers several key benefits. Electronic delivery is more secure—only the worker can access the document, unlike paper copies that can be lost or stolen in the mail. It's also faster, with electronic copies often available well before paper versions arrive. Electronic copies eliminate the risk of delivery to an old or incorrect address, as well as potential damage during transit. This provides a more efficient and secure way for employees to access their tax information.
Billing
Any fees related to Year End will appear on invoices for January and February. These fees include:
- Printing and mailing W-2s and 1099s (per document): $2
- Untimely Tax Filing Where Delay Is Not Check's Fault (including refiling): $150
- Amended Employer Tax Filing (per return): $150
- Tax Returns for Employers No Longer Using the Services: $200 per ER for all filings.
This is our standard pricing. If you have questions about any of these fees, feel free to reach out to your Growth Manager directly or growth@checkhq.com.
W-2 and 1099 FAQs
When do W-2s and 1099s need to be distributed to workers?
W-2s and 1099s must be postmarked by January 31st. Electronic copies must also be available on or before that date.
Can employers decline Check's W-2 print and mail service and print on their own?
Yes, based on the company-level employee_w2_delivery_method and contractor_1099_delivery_method flags.
What should an employer do if an employee claims they did not receive their W-2 in the mail?
The Partner should submit a support ticket to Check for investigation and resending. Alternatively, the employer can provide an electronic copy from their records if the employee consents.
From a compliance standpoint, who is responsible for the accuracy and distribution of W-2s?
The employer is ultimately responsible for ensuring that W-2 information is accurate and distributed on time. Check will assist by using payroll information provided by the employer to calculate and reflect wages and taxes in the W-2 boxes according to federal, state, and local rules.
What should employers do with a W-2 returned by the U.S. Postal Service due to an invalid address?
Do not open it. Keep the original postmark as proof of attempted delivery, which satisfies IRS compliance requirements. Employers should keep returned W-2s on file in case an employee later requests a copy. Double-check the address—if it was incorrect, resend the W-2 to the correct address. If the employee still works for the employer, they can also hand-deliver the returned W-2.
Can Check send electronic W-2s to employees who have not consented if the employer is certain they don't want a mailed copy?
No. Employees must affirmatively consent to receive electronic tax documents. Without this consent, we must send W-2s by mail until employees update their delivery preference.
Will Check support an individual who needs to switch between contractor and W-2 employee classification? Will they receive multiple forms?
Yes, Check will complete and file the appropriate forms based on the payment type and worker classification. A worker classified as both a contractor and a W-2 employee in the same year will receive both a 1099-NEC and a W-2.
Can employees access electronic W-2s if they have not consented to receive them electronically?
Yes. An electronic version of the employee's W-2 will be available in the tax documents endpoint. Employees who do not provide consent will receive a paper W-2 and still have the ability to access their W-2 electronically.
How long will employees have access to W-2 forms online?
Forms are always available through Check's API and Console.
Where are my W-2s? When will they be available?
You can retrieve draft and filed W-2s anytime via the Employee Tax Statements and Tax Packages APIs and the Filing Preview Component. Data is updated every Monday. W-2s are also published to the document object one week before January 31st. To remain compliant, you must make these documents available for employees to view by January 31st. Paper W-2s and 1099s will be postmarked by January 31st.
Why don't the W-2 amounts match my records?
W-2s may appear incorrect for several reasons. Most often, employees expect to see gross wages, but W-2s show taxable amounts. Before flagging an issue, verify that any pre-tax benefits are deducted from the employee's expectations. Discrepancies between employer records and W-2 amounts can also stem from historical payroll imports, incorrectly reported benefits or deductions, or taxation in the wrong state.
How do I report/correct specific W-2 boxes (retirement, HSA, benefits)?
Questions may arise about correctly reporting W-2 box amounts for retirement contributions, HSA, dependent care, and other benefits. First, verify that these amounts are set up on the employee's profile and being deducted—they should appear on the paystub. If they don't appear on the paystub, they won't be reflected on the W-2. If amounts should have been included but weren't on the employee's pay within the calendar year, submit a correction or explain to the employee why they weren't included.
How do I handle W-2s for employees with Social Security Number changes?
If an employee's SSN is updated in the system, Federal W-2C drafts will automatically be made available by the following Monday, and the Federal filing will be completed without a Support request. A Support ticket is only required to request SSN updates on state and local filings.
How do I correct errors on W-2s?
When employees or employers discover incorrect information on an issued W-2 form, it's important to understand what needs to be corrected and why. You may request corrections from Check's support team for several reasons, but not all corrections require a ticket. See the section Amending W-2s above for more information.
Year End Payroll FAQ
How do I determine when wages were applied for my customer’s last payroll of the year?
The payday determines the year in which the wages are applied. Example: Customer processes bi-weekly payroll on 12/27/25 for pay period 12/18/25 to 12/31/25 with a pay date of 1/2/26. Because the pay date is in 2026, the wages would be applied to the 2026 tax year.
Do year-end bonuses have to be processed during a certain processing window?
There is no special processing window for year-end bonuses. Off-cycle payrolls can be processed within the normal payroll approval window. However, it is best to plan ahead and ensure any bonus runs are planned out carefully to ensure there is time to capture them before year end.
What is the technical definition of the last day of the year? Are there any pay dates that fall on or before Dec 31?
The last date of the year is December 31st. If a pay period is in December but the payday is in 2026, it will not be considered as 2026 wages.
Will Check help employers comply with the Affordable Care Act (ACA) requirements?
Check does not currently support the Affordable Care Act (ACA) reporting requirements.
Will payrolls need to be processed earlier in the day to accommodate for earlier cutoff times during year-end?
There will be no changes. Our cutoff times are based around when we need to get the bank files uploaded.
Last updated on October 15, 2025