What your claim number is and where to find it

Your Massachusetts unemployment claim number is a unique identifier assigned to your unemployment case the moment you file. It is a seven-digit number that appears on every piece of correspondence you receive from the Department of Unemployment information (DUA) — letters, emails, and your online account. You will need this number every time you contact DUA, file a weekly claim, or check the status of your case.

The easiest place to find your claim number is in your first approval or denial letter from DUA. This arrives by mail within one to two weeks of filing. If you filed online through the DUA portal, your claim number also appears on the confirmation screen when ready after submission — take a screenshot or write it down before you close the browser.

If you cannot locate your original letter and did not save the confirmation number, log into your DUA account at mass.gov/unemployment. Your claim number displays at the top of your account dashboard. You can also call the DUA customer service line at 877-626-6800 and provide your Social Security number; they will read your claim number to you over the phone.

Key Takeaways

  • Your claim number is a seven-digit code that DUA assigns when you file and appears on all official correspondence and your online account.
  • You must provide your claim number when you file weekly claims, contact DUA by phone or email, or check your case status online.
  • Your first letter from DUA contains your claim number; if you cannot find it, log into your account at mass.gov/unemployment or call 877-626-6800.
  • Write down your claim number and keep it in a safe place — losing it will not affect your case, but having it ready saves time on every call or submission.

When you need to use your claim number

You will use your claim number most often when filing your weekly claim. Massachusetts requires you to file a new claim every week you are out of work and want to receive benefits. You can file online through your DUA account, by phone through the automated system, or by mail. In every method, you will be asked to enter or state your claim number first.

If you call DUA's customer service line, have your claim number ready before you dial. The automated system asks for it when ready, and providing it correctly routes you faster and reduces the chance of reaching the wrong case file. If you are calling about a specific issue — a payment delay, a disqualification notice, or a question about your benefits — the representative will also ask for your claim number to pull up your file.

You also need your claim number if you receive a notice from DUA about a information, an overpayment, or a request for more information. These notices always reference your claim number at the top. When you respond, include your claim number in your letter or email so DUA can match your response to the correct case.

How to file your weekly claim using your claim number

The fastest way to file your weekly claim is through your online DUA account. Go to mass.gov/unemployment, click "Log In," and enter your username and password. Your claim number appears at the top of your dashboard. Click "File Weekly Claim" and answer the questions about your work search, any earnings, and your availability for work that week. Your claim number is already populated in the system; you do not need to type it again.

If you prefer to file by phone, call the DUA automated claims line at 877-626-6800. The system will ask you to enter your claim number using your keypad, then guide you through the same questions. This method takes about five minutes and works 24 hours a day, seven days a week.

Filing by mail is slower and not recommended unless you cannot access the phone or online system. Request a paper claim form by calling DUA or visiting a local DUA office. Write your claim number clearly at the top of the form, answer all questions, sign and date it, and mail it to the address on the form. Paper claims take one to two weeks to process, and late filings may delay your payment.

What to do if you lose or forget your claim number

Losing your claim number is not an emergency and will not affect your case. DUA can always look up your file using your name and Social Security number. However, having your claim number on hand makes every interaction faster and reduces errors.

If you forget your number before filing a weekly claim, log into your online account — your number is displayed there. If you cannot log in, call 877-626-6800 and tell the automated system you need to file a claim. When prompted for your claim number, you can instead enter your Social Security number, and the system will find your case. You can then file your claim without ever knowing the number.

If you receive a notice from DUA and cannot find your claim number on it, look at the top right corner of the letter — it is usually printed there in large text. If the letter is too faded to read, call DUA and read them the date of the letter and the type of notice (approval, denial, overpayment, etc.). They will confirm your claim number and explain what the letter says.

Keeping your claim number safe and organized

Write your claim number on a piece of paper and store it with your important documents — your Social Security card, driver's license, and lease or mortgage papers. You can also save it in your phone's notes app or a password manager. The claim number itself is not sensitive information; it does not grant access to your account or your money. Anyone who has it can call DUA and ask about your case, but they cannot change your password, file claims on your behalf, or withdraw funds.

If you are concerned about privacy, do not write your full Social Security number next to your claim number. DUA only needs one piece of information to look up your case — either your claim number or your Social Security number, not both.

Keep all letters from DUA in a folder, either physical or digital. Each letter references your claim number, so if you lose the number, you can always find it again by looking at any official DUA correspondence.

Common mistakes when using your claim number

The most common mistake is transposing digits when you enter your claim number into the online system or over the phone. Massachusetts claim numbers are seven digits long. If the system rejects your number, read it aloud digit by digit to make sure you entered it correctly. If you are still unsure, hang up and log into your online account instead — that method does not require you to type the number.

Another mistake is waiting too long to file your weekly claim. You must file within the same week you are claiming benefits. If you file late, DUA may deny that week's payment. Your claim number does not change, but your payment schedule does. If you miss a filing important date, call DUA when ready to ask whether you can file a late claim.

Do not share your claim number with anyone who calls you claiming to be from DUA. DUA will never call you and ask for your claim number to verify your identity. If someone calls asking for it, hang up and call DUA directly at 877-626-6800 to report the call.

Frequently Asked Questions

Can I use my claim number to check how much money I have left?

Your claim number does not show your remaining balance. Log into your online account at mass.gov/unemployment to see your benefit year, weekly benefit amount, and total benefits paid to date. You can also call 877-626-6800 and speak to a representative who can tell you your balance over the phone.

What if I filed multiple claims in Massachusetts — do I have multiple claim numbers?

Yes. Each time you file a new claim — after your benefit year ends, after you return to work and then lose your job again, or if you file for a different program — you receive a new claim number. Keep track of which number corresponds to which claim period. If you are unsure which claim is active, call DUA and they will tell you.

Does my claim number change if I move to a different state?

No. Your Massachusetts claim number stays the same for the entire benefit year, even if you move. However, if you move and find work in another state, you may need to file a claim in that state instead. Contact DUA to discuss how your move affects your benefits.

Can I file a weekly claim without my claim number?

Yes. If you call the automated system or log into your online account, you can file using your Social Security number instead. However, having your claim number ready makes the process faster and reduces the chance of reaching the wrong case file.