W-2 Form explained: 100+ years of payroll reporting history (Infographic)

The W-2 form began during World War II as payroll withholding expanded. Over time, it grew to report Social Security and Medicare taxes, benefits, and state/local details. Today, most payroll reporting is electronic, helping the IRS and SSA match wages, reduce errors, and improve compliance. 

• The federal income tax became constitutional with the 16th Amendment, ratified February 3, 1913. 
• The modern system of federal income tax withholding (“pay as you go”) was mandated in 1943, helping drive creation and use of the W-2 era of payroll reporting. 
• Employers typically must provide Form W-2 (Wage and Tax Statement) to employees by January 31 (or the next business day when the date falls on a weekend/holiday). For tax year 2025 forms, the IRS lists February 2, 2026.  Some states, such as California and New York, have later deadlines for state-specific filings, typically by February 28.
• W-2 reporting supports Social Security and Medicare benefit calculations, so accuracy matters. 
• Most individual tax returns are now filed electronically; the IRS reports 93.3% of individual returns were e-filed in FY 2024. 

This  payroll reporting history infographic takes you on a journey—from early wage statements and paper-based filing to today’s digital, automated reporting using W-2 form. At the center of this evolution is a shift from a year-end form you simply receive to a data-driven record that helps payroll systems, employees, and agencies reconcile earnings and taxes with speed and accuracy.

From printed wage statements to integrated, smart W-2 payroll reporting workflows—optimized for SMB teams. Click to enlarge.

What is a W-2 form in simple terms?

A Form W-2 (also written as W 2 or W-2 form) is an IRS tax form employers prepare for each employee. It summarizes the employee’s income and payroll deductions for the year, including:

• Federal Income Tax withholding
• social security tax and social security tax withheld
• medicare tax and Medicare tax withheld
• selected benefits, such as dependent care benefits or health savings account contributions, when applicable

Employers file Copy A with the Social Security Administration and give copies to employees. 

How do you use a W-2 to file taxes (simple steps)?

1. Confirm your identity details: your name and social security number must match your Social Security card.
2. Check wages and withholding: review total wages, tax withheld, and income tax withheld amounts against your final pay stub.
3. Use the W-2 to report income: enter the W-2 information into your income tax return (or share it with your preparer) to file taxes accurately.
4. Keep it for records: store your tax forms with your other federal tax information for the year.
5. Fix problems early: if anything is wrong, request a correction from your employer before you file. The IRS explains what to do if you don’t get a W-2 or your W-2 is wrong. 

What is payroll reporting, and what did it look like before the W-2?

Before standardized reporting, employees and employers relied on manual records. Early payroll reporting often meant:

• pay ledgers and handwritten summaries of gross wages
• limited standardized reporting of taxable income
• inconsistent documentation needed to calculate income taxes

Once national programs expanded—especially the federal income tax and later Social Security—government agencies needed consistent data across millions of workers.

Which president started income tax, and what changed in 1913?

The U.S. moved toward modern federal income tax in two linked steps:

• The 16th Amendment was ratified on February 3, 1913, confirming Congress’s power to levy a federal income tax. 
• Later in 1913, President Woodrow Wilson signed the Revenue Act of 1913, which implemented an income tax structure after the amendment’s ratification. 

This mattered for payroll reporting because income tax rules pushed employers and workers toward more consistent documentation of the employee’s income.

What happened between 1913 and 1943 that set the stage for Form W-2?

From 1913 to the early 1940s, the U.S. tax system expanded in reach and complexity. Two shifts shaped payroll reporting:

1. Growth in federal tax administration and compliance needs
   As more taxpayers fell under income tax rules, the government required clearer ways to track wages and withheld amounts.
2. Social Security and payroll taxes enter the picture
   The Social Security Act was signed in 1935, establishing a system supported by taxes on wages and payrolls.

These developments increased the need for consistent wage reporting—both for tax compliance and for benefit records tied to earnings.

Why was the W-2 created in 1943, and when did employers start sending W-2s?

During World War II, the U.S. needed a more reliable way to collect revenue. In 1943, Congress passed the Current Tax Payment Act, requiring employers to withhold taxes from wages under a modern pay-as-you-go model. 

As wage withholding became routine, Form W-2 use was established in this period, and many references note that employees began receiving early W-2 statements in the following year’s cycle (for example, W-2s issued in 1944 for prior-year wages). 

Why it mattered: With withholding, the government needed a standard tax statement that aligned employer records, employee records, and agency matching.

How did Social Security and Medicare change what employers had to report?

The W-2 didn’t stay static. It expanded as payroll taxes and benefits expanded:

• Social Security: Taxes tied to Social Security began being collected in January 1937, and wages became a core data point for benefits.
• Medicare: Medicare was enacted in 1965 and implemented in 1966, adding another major payroll tax stream and reinforcing the need to track Medicare wages and Medicare tax withheld.

The IRS also emphasizes that employees’ Social Security and Medicare benefits are computed based on W-2 information, which is why correct reporting is important.  

What key milestones explain how W-2s evolved over time?

Instead of being a single-purpose withholding summary, the W-2 became a structured payroll record that can include wages, tax withholding, and certain benefits.

Common additions and expansions include:

• Medicare wages and Medicare tax reporting (reflecting Medicare’s launch and payroll tax funding)
• Tip income and allocated tips reporting became more formal in the early 1980s, including allocated tips rules for certain establishments
• Expanded reporting of employer-provided benefit categories, including employer sponsored health coverage reporting in Box 12 (Code DD) for applicable employers 
• Increasing electronic filing requirements and standardization of electronic formats and thresholds (discussed more below) 

How did payroll reporting move from paper tax returns to e-file?

Payroll reporting digitized in steps:

• Employers still prepare employee copies, but filing is strongly tied to electronic systems through the SSA and IRS. The IRS explains that employers file W-2s with the SSA, and employees receive their copies by the annual deadline. 
• The IRS reports that 93.3% of individual returns were filed electronically in FY 2024, showing how rare the paper tax return has become for many taxpayers. 
• Electronic filing thresholds tightened. The IRS notes that starting with information returns due in calendar year 2024, filers with 10 or more information returns generally must file electronically (unless a waiver applies). 

Why businesses care: E-filing reduces processing time, improves matching of federal tax information, and helps catch errors earlier in the season.

What are the main “methods” of payroll reporting across history, and what business benefits did they create?

Here’s a practical comparison list you can use in payroll or finance training (no table needed):

• Manual wage records (early 1900s)
  • Key features: handwritten wage logs, limited standard formats
  • Business impact: higher error risk; employees had less consistent documentation to report income
• Withholding era begins (1943 onward)
  • Key features: standardized withholding, regular employer remittance
  • Business impact: improved collections; clearer records for tax liability tracking
• Expanded payroll tax reporting (Social Security + Medicare)
  • Key features: stronger reporting of social security wages, social security tax withheld, medicare wages, medicare tax withheld
  • Business impact: better benefits accuracy; clearer compliance expectations  
• Benefit and compensation detail grows (late 1900s–2000s)
  • Key features: more reporting for benefits like dependent care benefits, retirement plan indicators, and selected taxable benefits
  • Business impact: better employee transparency; fewer surprises at year-end
• Digital filing and matching (2000s–today)
  • Key features: e-filing, stronger data validation, faster corrections (W-2c)
  • Business impact: fewer processing delays; clearer audit trails

What’s inside today’s W-2, and what do the most important boxes mean?

A modern Form W 2 includes employer and employee identification plus multiple wage and tax fields. While layouts can vary slightly by year, these categories are common:

H3: Which identity fields matter most?

• Employee name and address
• Social security number
• Employer name and address
• Employer Identification Number (EIN) and, for state reporting, a state id number may appear in the state section

H3: Which boxes affect most tax returns?

These are the fields most people use when they file taxes:

• Box 1 (taxable wages): “Wages, tips, other compensation” used to calculate taxable income on your tax return
• Box 2 (federal income tax withheld): how much the employer withheld for federal income tax
• Box 3 (social security wages) and Box 4 (social security tax withheld)
• Box 5 (medicare wages and tips) and Box 6 (medicare tax withheld) 

H3: Which boxes commonly show benefits and special payroll deductions?

Depending on your situation, you may see:

• Dependent care benefits (often tied to a dependent care assistance program)
• Retirement plan indicator (helpful when evaluating contributions)
• Health savings account reporting (HSA contributions commonly appear via Box 12 code reporting) 
• Employer sponsored health coverage reporting (for applicable employers, Box 12 Code DD reporting is informational) 
• Tip income and allocated tips (common in food and beverage roles; allocated tip rules exist for certain establishments)
• Nonqualified plans (often shown when applicable)

H3: What about state and local wages?

Many W-2s include state and local sections showing:

• state tax withheld
• local wages and local taxes
• in some places, items like state disability insurance taxes (if any)

These are important for your state return and local filings.

Example: How does a W-2 connect wages, withholding, and your tax return?

Imagine an employee receives a W-2 showing:

• Taxable wages (Box 1): $60,000
• Federal income tax withheld (Box 2): $6,800
• Social security wages (Box 3): $60,000
• Social security tax withheld (Box 4): shown based on the Social Security rate and wage base rules
• Medicare wages (Box 5): $60,000
• Medicare tax withheld (Box 6): shown based on Medicare tax rules

When they complete their income tax return, Box 1 helps determine taxable income (after adjustments/deductions), while Box 2 helps determine whether they owe more taxes or are due a refund. Boxes 3–6 help document social security and medicare payroll taxes already paid through withholding.

W-2 vs. 1099: Which tax form should you expect?

Use this simple rule:

• W-2: You are an employee. Your employer reports wages and payroll taxes withheld.
• 1099 (for many contractor situations): You are not treated as an employee (often independent contractors). You may be responsible for your own tax payments.
• Statutory employee: Some workers fall into special categories; if the statutory employee box is checked on the W-2, it can affect how you report income.

If you are unsure, look at how you are paid during the year and whether taxes were withheld from your pay.

What common W-2 mistakes delay filing, and how do you fix them?

Common issues include:

• Wrong social security number or misspelled name
• Incorrect wage amounts (such as total wages not matching year-end payroll)
• Missing tax withheld amounts
• Incorrect state/local data (like state id number or local wages)
• Benefit reporting errors (HSA, dependent care, taxable fringe benefits, or other compensation)

How do you fix a W-2 error?

1. Contact your employer and request a correction.
2. If the employer issues a correction, they may provide a Form W-2c (Corrected Wage and Tax Statement). 
3. If you can’t get it corrected by the end of February, the IRS outlines next steps, including potential use of a substitute form approach (based on estimates) and how to proceed if you later receive the corrected W-2. 

What are the W-2 deadlines and penalties employers should know?

Deadline

The IRS states employers must file Copy A with the SSA and furnish employee copies by the listed annual due date (for tax year 2025 forms, February 2, 2026). 

Penalties (high-level)

If W-2s are filed late or incorrectly, IRS information return penalties can apply. For the year due 2026, the IRS lists per-return penalty amounts that increase with lateness, up to $680 per return for intentional disregard.

Take note: Exact amounts depend on facts and timing. Always confirm current rules for your filing year.

How can pdfFiller help teams manage W-2 workflows more safely and efficiently?

W-2 compliance is not only about tax math. It’s also about document control, privacy, and process reliability—especially for HR and payroll teams handling sensitive employee data.

pdfFiller supports document workflows commonly used alongside payroll reporting, such as:

• Secure document handling: encrypted communications, two-factor authentication, and a document audit log for accountability.
• Collaboration and review: tools designed for multi-user editing and approvals (useful when payroll, HR, and finance all review year-end data).
• Signature collection: request signatures when you need employee acknowledgments or related HR forms signed.

Final thoughts 

The W-2 exists because payroll reporting had to scale—from early federal income tax rules to withholding, then to Social Security and Medicare reporting, and now to high-volume electronic matching. For employers, the lesson is clear: accurate payroll records protect employees, reduce correction work, and lower compliance risk.

Ready to modernize payroll document workflows? Start a free trial with pdfFiller to fill, eSign, route, and store payroll-related forms online—while keeping audit-friendly records and strong access controls.  

Educational disclaimer: This article is for general information only. For specific guidance, consult the IRS, the SSA, or a qualified tax professional. 

Glossary 

• Wage and Tax Statement: Another name for Form W-2, summarizing wages and taxes withheld for a tax year.
• Federal income tax withholding: The amount an employer withholds from paychecks and sends to the government toward federal income tax.
• FICA taxes: Payroll taxes that fund social security and medicare benefits.
• Medicare wages: Earnings subject to Medicare tax, often shown as medicare wages and tips on the W-2.
• Allocated tips: Tips assigned under specific rules for certain establishments and shown in a dedicated W-2 box when applicable.