Yes! You can use AI to fill out Form W-2, Wage and Tax Statement

This error involves entering a Social Security Number in Box 'a' that does not match the employee's legal name in Box 'e'. It often happens due to typos, using a nickname instead of a legal name, or name changes after marriage. An SSN/name mismatch will cause the Social Security Administration (SSA) to reject the filing, delaying the crediting of earnings to the employee's record and potentially causing issues when they file their personal tax return. Always verify employee information against their Social Security card.

The IRS provides a PDF version of Form W-2 with a red Copy A for informational purposes only, but it is not scannable. A common mistake is printing this downloaded copy and mailing it to the SSA. The SSA's automated equipment cannot process these forms, which will result in a filing rejection and a potential penalty for the employer. To avoid this, employers must either e-file with the SSA or order official, scannable paper forms from the IRS.

Employers often mistakenly report the same amount for federal wages (Box 1), Social Security wages (Box 3), and Medicare wages (Box 5). These amounts can differ due to pre-tax deductions like 401(k) contributions, which reduce federal wages but not FICA wages. This error leads to incorrect tax calculations and can trigger inquiries from the IRS or SSA. Carefully calculate each wage base according to the specific rules for each tax type.

Box 12 uses specific codes to report various types of compensation and benefits, from retirement plan contributions (Code D) to the cost of health coverage (Code DD). Using the wrong code or entering an incorrect amount is a frequent error due to the complexity and number of options. This can significantly impact an employee's tax liability, as it affects calculations for taxable income and deductions. Always consult the most recent W-2 instructions to ensure the correct codes and amounts are used.

The 'Retirement plan' checkbox in Box 13 must be checked if the employee was an 'active participant' in a company retirement plan during the year. Employers sometimes miss this, especially if the employee was eligible but chose not to contribute. An unchecked box can mislead the employee into taking an IRA deduction they aren't eligible for, resulting in tax underpayment and potential penalties. This box's status depends on eligibility, not just participation.

Errors in Boxes 15-20, which detail state and local wage and tax information, are common, especially with remote employees or staff who work in multiple jurisdictions. Entering the wrong state ID number, or misallocating wages and taxes between different states or localities, creates significant filing problems for the employee. This can lead to tax notices and a complicated process to resolve the discrepancies with multiple state tax agencies. Meticulous record-keeping of employee work locations is essential.

A simple typographical error in the Employer Identification Number (EIN) in Box 'b' is a critical mistake. This can also occur if a business uses the EIN of a parent or subsidiary company by mistake. An incorrect EIN will cause a mismatch with the employer's name in government records, leading to an automatic rejection of the entire W-2 filing by the SSA and requiring a corrected submission.

Manually entering the figures for federal (Box 2), Social Security (Box 4), or Medicare (Box 6) tax withheld can easily lead to transposition errors. For example, entering $5432.10 as $5342.10 creates a discrepancy between what the employer paid and what the employee claims on their tax return. This mismatch will likely trigger an automated notice from the IRS, requiring both the employer and employee to resolve the difference. Using integrated payroll software helps prevent these manual data entry mistakes.

Employers sometimes enter their 'doing business as' (DBA) or trade name in Box 'c' instead of the legal entity name associated with their EIN. While this may seem like a minor issue, it can cause a mismatch in the SSA's database when they try to validate the EIN against the employer name. This can lead to processing delays or rejection. The name in Box 'c' must be the one the IRS has on file for the EIN in Box 'b'.

Box 14 is a catch-all 'Other' field for informational items not required elsewhere, like union dues or state disability insurance premiums. A common error is to report information here that has a designated code in Box 12, such as retirement plan contributions. This prevents tax software and the IRS from processing the information correctly, potentially causing the employee to miss out on deductions or credits. Always check if there is a specific box or code for an item before using Box 14.