Alabama Department of Revenue Edition Form A4 (Rev. 4/2025) 1 page Alabama

Alabama Form A4 — Employee's Withholding Tax Exemption Certificate

The Alabama Department of Revenue form that tells your employer how many withholding exemptions you claim for Alabama income tax.

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Alabama Form A4 · Employee's Withholding Exemption Certificate (Alabama)
The official Alabama Department of Revenue form, edition Form A4 (Rev. 4/2025) — blank
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Alabama Form A4 (2025) Employee's Withholding Exemption Certificate (Alabama) — page 1 of 1
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Fill this form online Blank PDF from Alabama Department of Revenue

What is Alabama Form A4?

Alabama Form A4 (Rev. 4/2025) is the certificate every employee gives an employer, on or before starting work, to set Alabama income tax withholding. You claim one personal exemption: none (0), Single (S) or Married Filing Separately (MS) at $1,500, or Married (M) or Head of Family (H) at $3,000. Then you add the number of dependents you support and any extra amount per pay period.

The form warns that the exemptions may never exceed what you are entitled to, and that inflating them carries a $500 penalty under Section 40-29-75. Part II is completed by the employer, who keeps the certificate on file.

FileIt asks for your exemption once, writes the right letter on the right line, and prints your answers into the Department's own PDF. The finished form is saved in the person's vault folder and can be sent for e-signature. FileIt never submits it: you give the A4 to your employer.

Who fills it
The employee completes Part I and signs; the employer completes line 6 and Part II.
Given to
Your employer, on or before your first day of work.
Edition
Form A4 (Rev. 4/2025).
Personal exemption
0 (none), S or MS ($1,500), M or H ($3,000).
Penalty
$500 for inflating the number of exemptions (Section 40-29-75).
Cost
Free to fill out on any FileIt account.

Who needs to fill out Alabama Form A4?

  • Every employee starting work with Alabama income tax withholding.
  • Employees whose marital status or dependents have changed.
  • Employees who want to withhold at the highest rate by claiming no personal exemption.
  • Anyone who wants an additional amount deducted each pay period.

When to use Alabama Form A4

  • On or before your first day of employment.
  • When your marital status, head-of-family status or number of dependents changes.
  • When your employer asks for a corrected A4 after the Department has verified your exemptions.

What you need before you start

  • Your name, Social Security number and street address.
  • Your filing situation: single, married filing separately, married, or single and head of family with qualifying dependents.
  • The number of dependents (other than your spouse) who get more than half their support from you and are related to you as the form lists.
  • Any additional amount you want deducted each pay period.

What’s on Alabama Form A4

The 2025 edition has 1 page. FileIt asks for it in 3 parts, and it is signed by Employee:

  1. Part I: Your detailsEmployee
  2. Lines 1 to 5: Your withholding exemptionsEmployee
  3. Part II and line 6: EmployerEmployer

How to fill out Alabama Form A4, step by step

1 Your details

Enter your name, Social Security number, street address, city, state and ZIP code in Part I.

2 Lines 1 to 3: your personal exemption

Choose one. Line 1: write 0 to claim no personal exemption and withhold at the highest rate. Line 2: S for the $1,500 single exemption or MS for married filing separately. Line 3: M for the $3,000 exemption for yourself and your spouse, or H if you are single with qualifying dependents and claim head of family. FileIt writes the letter on the matching line.

3 Line 4: dependents

Enter how many dependents, other than your spouse, you will provide more than half the support for during the year. They must be related to you as the form lists: children, stepchildren, grandchildren and in-laws; parents, grandparents and step-parents; brothers, sisters and half- or step-siblings; or an uncle, aunt, nephew or niece related by blood.

4 Line 5: additional amount

Optionally, enter an extra amount to deduct each pay period.

5 Sign and date

Certify under penalties of perjury that the certificate is true, correct and complete, and sign and date it. You can sign by hand or with FileIt eSignature.

6 Employer: line 6 and Part II

The employer enters the total exemptions on line 6, which is the withholding table column to use. The form's example is M on line 3 and 2 on line 4, giving column M-2. The employer then adds its name, EIN and address.

Common mistakes to avoid

  • Claiming more exemptions than you are entitled to, which carries a $500 penalty.
  • Writing a letter on both line 2 and line 3. You claim one personal exemption.
  • Counting your spouse as a dependent on line 4. Line 4 is for dependents other than your spouse.
  • Counting someone who doesn't get more than half their support from you, or who isn't related to you as the form lists.

After you fill it out

Sign it and give it to your employer, who keeps the certificate on file. FileIt saves a copy in the person's vault folder.

If you claim 8 or more dependent exemptions, or seem to claim more than allowed, your employer should contact the Department's Withholding Tax Section to verify.

If verification shows you don't qualify, your employer must withhold at the highest rate until you give it a corrected A4.

Fill out Alabama Form A4 online with FileIt

  1. Pick the person. Choose someone from People and FileIt fills in their name, date of birth, address and other details it already knows.
  2. Answer plain-language questions. One part of the form at a time, with the official help text beside each question — 19 fields in all. Your answers save as you go.
  3. Check the live preview. Watch your answers land on the real Alabama Department of Revenue form, and let FileIt do any worksheet arithmetic.
  4. Generate the official PDF. FileIt prints your answers into the agency’s own PDF and files it in that person’s folder in your vault. Sign it, or send it for e-signature.

FileIt fills the form — it never files or submits anything for you. Deliver the finished form to whoever asked for it, the way the form’s instructions say.

Start Alabama Form A4 now — it’s free

Alabama Form A4: frequently asked questions

What do S, MS, M and H mean on Form A4?

S is the single exemption and MS married filing separately (each $1,500). M covers yourself and your spouse and H is single claiming head of family (each $3,000). Writing 0 claims no personal exemption.

What is line 6 for?

The employer completes it with the withholding table column to use, such as M-2 for a married employee with two dependents.

What if I claim too many exemptions?

The form says an employee who inflates the number of exemptions pays a $500 penalty under Section 40-29-75, and the employer must withhold at the highest rate until a corrected A4 is filed.

Isn't Form A-4 Arizona's?

Arizona also has a Form A-4, its withholding election, which FileIt lists as US A-4. Alabama's certificate is listed as AL-A-4.

Where do I send Form A4?

Give it to your employer. The form tells employers to keep it on file.

Official sources

FileIt is not affiliated with or endorsed by Alabama Department of Revenue or any government. This page explains the form in general terms and is not legal, tax or immigration advice. Always read the official instructions, and check that you are using the edition the recipient accepts. Page last reviewed 2026-09-28.

Fill out Alabama Form A4 online