Create W-2 from Pay Stub — W2 Wages, Paycheck to W2 Converter & Previous Employer Guide

11 min readUpdated: February 5, 2026

Need to convert your pay stub to w2 data? Whether you want to calculate w2 from paystub, understand w2 wages on your w2 wage and tax statement, use your last pay stub as w2, or you're getting w2 from previous employer — this guide covers the entire pay stub w2 conversion process. We also explain year end pay stubs, payroll year end reports, how to make w2 for employees, and how to find employer ein number without w2.

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Pay Stub to W2 Overview

The pay stub to w2 process — also called paycheck to w2, w2 from paycheck, w2 from paystub, or w2 paystub matching — involves mapping your year-end pay stub data to the corresponding W-2 boxes. Your w2 pay stub and pay stubs and w2 are closely linked: the YTD totals on your final year end pay stub should match your W-2 exactly.

Pay Stub YTD Field	W-2 Box	Label
YTD Federal Taxable Wages	Box 1	Wages, tips, other compensation
YTD Federal Tax Withheld	Box 2	Federal income tax withheld
YTD Social Security Wages	Box 3	Social Security wages
YTD Social Security Tax	Box 4	Social Security tax withheld
YTD Medicare Wages	Box 5	Medicare wages and tips
YTD Medicare Tax	Box 6	Medicare tax withheld
YTD State Wages	Box 16	State wages, tips, etc.
YTD State Tax	Box 17	State income tax withheld

This is the core of the pay stub to w2 conversion and pay stub w2 connection. For help reading each field, see how to read a pay stub.

W2 Wages & Taxable Wages on W2

What are w2 wages? What is the w2 wage shown on your w2 wage and tax statement? Understanding wages on w2 is key to the pay stub w2 conversion. There are actually three different wage figures on your W-2, and they're often different amounts:

W-2 Box	Wage Type	What's Subtracted	Example ($90K gross)
Box 1	Federal taxable wages (w2 box 1 wages / box 1 w2 wages)	401(k), health ins, FSA, HSA	$78,400
Box 3	Social Security wages	Health ins, FSA only (Sec 125)	$86,400
Box 5	Medicare wages	Health ins, FSA only (Sec 125)	$86,400

The taxable wages on w2 (Box 1) are your lowest wage figure because all pre-tax deductions reduce it. Total wages on w2 and w2 total wages typically refer to Box 1, though Boxes 3 and 5 show higher amounts. The w2 wage statement and w-2 wage statement show all three.

For details on how Medicare wages work, see Medicare on pay stub. For Social Security, see what is OASDI.

How to Calculate W2 Wages from Pay Stub

How to calculate w2 wages and how are wages calculated on w2? Here's the formula to calculate w2 from paystub data:

Box 1 (Federal Taxable) = Gross Pay − 401(k) − Health Ins − FSA − HSA − Dep Care FSA

Box 3 (SS Wages) = Gross Pay − Health Ins − FSA − Dep Care FSA (up to $176,100)

Box 5 (Medicare Wages) = Gross Pay − Health Ins − FSA − Dep Care FSA (no cap)

Deduction	Reduces Box 1?	Reduces Box 3?	Reduces Box 5?
401(k) / 403(b)	✅ Yes	❌ No	❌ No
Health insurance (Sec 125)	✅ Yes	✅ Yes	✅ Yes
FSA / Dep Care FSA	✅ Yes	✅ Yes	✅ Yes
HSA (employer-sponsored)	✅ Yes	✅ Yes	✅ Yes
Roth 401(k)	❌ No	❌ No	❌ No

For the full breakdown of gross vs net calculations, see gross pay vs net pay.

W2 Box 1 Wages & Complete Pay Stub Mapping

The w2 box 1 wages and box 1 w2 wages are the most important figure for tax filing. Here's a complete example showing how to convert a year end pay stub to W-2 data:

W-2 Box	Description	Pay Stub YTD Source	Example Amount
1	Wages, tips, compensation	YTD Federal Taxable Wages	$72,400.00
2	Federal income tax withheld	YTD FIT / FWT	$9,412.00
3	Social Security wages	YTD SS Wages / OASDI Wages	$82,400.00
4	Social Security tax withheld	YTD SS Tax / OASDI	$5,108.80
5	Medicare wages and tips	YTD Medicare Wages	$82,400.00
6	Medicare tax withheld	YTD Med Tax	$1,194.80
12a	Code D — 401(k)	YTD 401(k) Contributions	$6,000.00
12b	Code DD — Employer health	YTD Employer + Employee Health	$7,200.00

Can I Use My Last Pay Stub as a W2?

Can i use my last pay stub as a w2? Can i use pay stub instead of w2? How to use your last pay stub as a w2? How to use your last pay stub as w2? How to use last paycheck for w2? How to use last paycheck for w2? How to use last pay stub as w2? Can your w2 paycheck data serve as a substitute? These are all common questions — here's the answer:

Scenario	Can You Use Pay Stub?	What to Do
Normal tax filing	❌ No — W-2 required	Wait for your employer to send your W-2
W-2 is late (after Feb 15)	⚠️ Partially	Contact employer, then IRS at 800-829-1040
W-2 never arrives	✅ With Form 4852	File with Form 4852 using year end pay stub YTD data
Estimating taxes early	✅ Yes — for estimates	Use YTD pay stub data for preliminary calculations
Loan/apartment application	✅ Often accepted	Submit recent pay stubs alongside other documentation

For income verification uses, see proof of income, pay stub for loan, and pay stub for apartment.

Paycheck to W2 Converter

A paycheck to w2 converter or pay stub to w2 converter is a tool or process for pay stub to w2 conversion. Here's the complete pay stub w2 conversion mapping — your DIY w2 from paycheck and pay stub w2 reference:

Pay Stub Label	W-2 Box	Notes
YTD Gross Pay	—	Not directly on W-2 (sum of Box 1 + pre-tax deductions)
YTD FIT / FWT / Fed Tax	Box 2	Federal income tax withheld
YTD OASDI / SS / Soc Sec	Box 4	Should equal 6.2% of Box 3
YTD Med / Medicare	Box 6	Should equal 1.45% of Box 5
YTD SIT / State Tax	Box 17	State income tax withheld
YTD 401(k)	Box 12 (Code D)	Elective deferrals

For abbreviation meanings like FIT, FWT, OASDI, and SIT, see pay stub abbreviations.

Getting W2 from Previous Employer

Getting w2 from previous employer, obtaining w2 from previous employer, or trying to obtain w2 from previous employer? Whether you need to know how to get your w2 from previous employer, how to get w2 from previous employer online, how to get w2 online from previous employer, how to receive w2 from previous employer, or how to get old w2 from previous employer — here are your options:

Method	How	Timeline
Contact former employer	Call/email HR or payroll department directly	Days to weeks
Check payroll portal	ADP, QuickBooks, UltiPro — access may still be active	Immediate
Request IRS transcript	Form 4506-T or online at irs.gov → Get Transcript	5-10 business days
Call IRS directly	800-829-1040 (after Feb 15 if W-2 not received)	Varies
File with Form 4852	Substitute W-2 using your year end pay stub data	Immediate

For a w2 previous employer or w2 from previous employer situation, also check if your missing w2 from previous employer or lost w2 from previous employer can be retrieved through your old payroll portal. Requesting w2 from previous employer is your legal right — they're required to provide it by January 31.

If you need to know how to get w2 online from previous employer, how to get old w2 from previous employer, or want to retrieve records from years ago, your best bet is checking if you still have payroll portal access first. For portal-specific help, see ADP pay stubs, QuickBooks pay stubs, and Intuit pay stubs.

Year End Pay Stubs & Payroll Reports

Your year end pay stubs and year end pay stub are the foundation for W-2 generation. Year end payroll and year-end payroll processes are when employers finalize all payroll year end and payroll year-end data. The year end payroll reports and payroll year end reports include:

Date	Event	What Happens
Dec 31	Tax year ends	Final year end pay stubs generated
Early Jan	Year-end payroll reconciliation	Employers verify YTD totals, run payroll year end reports
Jan 31	W-2 deadline	Employers must deliver W-2s to employees and SSA
Feb 15+	Late W-2 remedies	Contact IRS if W-2 not received
Apr 15	Tax filing deadline	File return or extension

How to Make W2 for Employees

How to make w2 for employees — employers need to create employee w2 forms each year. Here's how:

Method	Best For	Cost
Payroll software (QuickBooks, ADP, Gusto)	Businesses already using payroll software	Included in subscription
SSA Business Services Online	Small businesses, manual filing	Free
Tax professional / CPA	Complex situations, multiple states	$50-200+

For nanny and household employers who need to create employee w2 forms, see nanny & caregiver pay stubs. For Gusto W-2 generation, see Gusto pay stubs.

How to Find Employer EIN Without W2

How to find employer identification number without w2? How to find employer ein number without w2? You may need the EIN for Form 4852 or other tax purposes. Here's where to look:

Source	Where to Find EIN
Pay stubs	Look for "Federal ID," "FEIN," or "EIN" on any pay stub
Prior year W-2	Box b on any previous W-2 from same employer
Employer directly	Call HR or payroll department
IRS	Call 800-829-1040 — they can look it up
SEC filings	Public companies list EIN in SEC EDGAR filings

Need a Pay Stub With Accurate YTD Totals?

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Frequently Asked Questions

Can I use my last pay stub as a W2?

Can i use my last pay stub as a w2 — not officially. The IRS requires a formal W-2 (w2 wage and tax statement) from your employer. However, can i use pay stub instead of w2 for filing? If your W-2 is missing or late, you can use your year end pay stub YTD totals to file Form 4852 (Substitute W-2) with the IRS. Your last pay stub has the data you need, but you must use the correct IRS form.

How to use last pay stub as W2?

How to use last pay stub as w2 or how to use your last pay stub as a w2: take your year end pay stub and match the YTD totals to W-2 boxes. Box 1 = YTD federal taxable wages, Box 2 = YTD federal tax withheld, Box 3 = YTD Social Security wages, Box 5 = YTD Medicare wages, Box 6 = YTD Medicare tax. If filing without an actual W-2, use Form 4852 with these pay stub to w2 numbers.

How are wages calculated on W2?

How are wages calculated on w2 and how to calculate w2 wages: W2 wages in Box 1 equal your gross annual pay minus pre-tax deductions (401(k), health insurance, FSA, HSA). This is different from Box 3 (Social Security wages) and Box 5 (Medicare wages), which only exclude Section 125 cafeteria plan deductions. You can calculate w2 from paystub by using your year-end YTD figures.

How do I get my W2 from a previous employer?

Getting w2 from previous employer, obtaining w2 from previous employer, or how to get your w2 from previous employer: first contact your former employer's HR or payroll department directly. For how to get w2 from previous employer online, check if they use ADP, QuickBooks, or UltiPro — your portal access may still be active. If you have a missing w2 from previous employer or lost w2 from previous employer, you can also request a wage transcript from the IRS using Form 4506-T.

What are taxable wages on W2?

What are taxable wages on w2 — Box 1 shows your federal taxable wages on w2, which is gross pay minus pre-tax deductions (401(k), health insurance, FSA). This is different from total wages on w2 or w2 total wages, which could refer to Box 3 (Social Security) or Box 5 (Medicare), both of which are typically higher than Box 1 because 401(k) doesn't reduce them.

What is a W2 wage and tax statement?

A w2 wage and tax statement (also w2 wage statement or w-2 wage statement) is IRS Form W-2, which employers must provide to every employee by January 31. It reports annual wages on w2, federal/state/local taxes withheld, Social Security and Medicare taxes, and benefit deductions. Employees use it to file their tax return. The w2 pay stub connection is that your final pay stub YTD totals should match your W-2.

How to make W2 for employees?

How to make w2 for employees: employers can create employee w2 forms through payroll software (QuickBooks, ADP, Gusto), through the SSA's Business Services Online portal, or through a tax professional. W-2s must be distributed to employees by January 31 and filed with the SSA by the same deadline. The data comes from your payroll year end reports and year end pay stubs.

What is a pay stub to W2 converter?

A pay stub to w2 converter or paycheck to w2 converter is a tool that helps you map your pay stub YTD data to W-2 boxes. For pay stub w2 conversion or pay stub to w2 conversion, you match: YTD federal wages → Box 1, YTD federal tax → Box 2, YTD SS wages → Box 3, YTD SS tax → Box 4, YTD Medicare wages → Box 5, YTD Medicare tax → Box 6. This is the core of the w2 from paycheck or w2 from paystub process.

How to find employer EIN without W2?

How to find employer identification number without w2 or how to find employer ein number without w2: check your previous pay stubs (EIN is often listed), look at prior year W-2s, check your employer's business correspondence or website, call your employer's HR department, or search the IRS tax-exempt organization database. Your pay stub may show the EIN as 'Federal ID' or 'FEIN'.