Short answer
A Georgia Tax Center Letter ID is a code on a Georgia Department of Revenue letter. The Department calls it the Letter ID “or document submission key.” In the Tax Center, we found three tasks that ask for it: uploading documents, protesting a proposed assessment, and requesting a penalty waiver. The Department’s page on the Notice of Proposed Assessment says the code is “at the top right corner of the letter.” Its page on the Official Assessment says the code “can be found at the top and the bottom of the letter.” The Submit Documentation screen in the Georgia Tax Center says you are eligible if you received a Department letter “within the last 60 days.” The screen also says you will need your taxpayer ID and a phone number. A Letter ID is a different item from a login. The sign-up screen for a business login lists six things you will need, and a Letter ID is not one of them.
Key takeaways
- The Department of Revenue uses more than one name for the code. Its letter pages call it the “Letter ID (or document submission key).” The upload screen in the Georgia Tax Center is titled “Enter Your Letter ID,” and its one text box is labeled “Document Submission Key.”
- Where the code is printed depends on the letter. The Department’s Notice of Proposed Assessment page says “the top right corner of the letter.” Its Official Assessment page says “the top and the bottom of the letter.”
- In the Georgia Tax Center, we found three Tasks links that ask for the code: Submit Documentation, Protest a Proposed Assessment, and Request a Waiver of Penalty. Submit Documentation covers a letter received “within the last 60 days.” The penalty waiver screen covers “an assessment issued within the last 30 days which includes a penalty.” The same screen says older periods, up to 3 years, can be requested after signing in.
- A Letter ID does not create a login. The Georgia Tax Center sign-up screen lists six items for business accounts. The first three are the account type and ID, a Federal Employer Identification Number (FEIN), and a Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) for sole proprietors. The other three are the last payment, the zip code, and an email address.
- When you register a new business, the Georgia Tax Center asks for the “Registered business name, location address and mailing address.” The Department pages we read do not say which of the two addresses its letters are mailed to.
- On October 17, 2026, we counted the 17 letter pages on the Department’s “Did you get a letter?” list. Four of them mention a Letter ID or Submission ID. Three are tax letters handled in the Georgia Tax Center, and one is a vehicle registration letter handled in DRIVES e-Services.
What the Georgia Department of Revenue means by Letter ID
A Letter ID is a reference code on a letter from the Georgia Department of Revenue. The code ties a reply to that one letter. The Notice of Proposed Assessment page says: “You will find the Letter ID (or document submission key) at the top right corner of the letter.”
The Notice to Submit Return page uses different wording. It says that if you already filed and paid, “you can upload supporting documents to the Georgia Tax Center (GTC) using the Letter or Submission ID provided in the letter.” We describe below where the Georgia Tax Center asks for the code.
On October 17, 2026, we read the 17 letter pages on the Department’s “Did you get a letter?” list. Four of them mention a Letter ID or Submission ID. Three are tax letters, and one is a vehicle registration letter.
The code is also printed on some vehicle letters. Those letters are handled by a different system. The Department’s page on the Pending Suspension of Vehicle Registration letter says you can pay online in DRIVES e-Services with your plate number or VIN “AND Driver’s License number or Letter ID.” The same page adds that “Letter IDs may be found on any letter sent to you regarding your vehicle.” This guide covers the tax side only.
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Where the Letter ID is printed on the letter
The Department’s letter pages give different locations for different letters. Two of them name a position on the page.
| Department letter page | What it says about the Letter ID | What you use the code for |
|---|---|---|
| Notice of Proposed Assessment | “at the top right corner of the letter” | Uploading supporting documents in the Georgia Tax Center |
| Official Assessment and Demand for Payment | “can be found at the top and the bottom of the letter” | Uploading supporting documents in the Georgia Tax Center |
| Notice to Submit Return | “provided in the letter” (no position given) | Uploading supporting documents if you already filed and paid |
From the Georgia Department of Revenue letter pages linked from “Did you get a letter?”, read on October 17, 2026.
If you cannot find the code, read both the top and the bottom of every page of the letter. The Protest a Proposed Assessment screen in the Georgia Tax Center gives another way: “If you do not have the letter ID, you can obtain an electronic copy of the letter by logging into GTC and using the 'View Letters' link on the Taxpayer Springboard page.”
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What the Letter ID opens in the Georgia Tax Center
On the Georgia Tax Center home page, under Tasks, we found three links that ask for the code from your letter. They are Submit Documentation, Protest a Proposed Assessment, and Request a Waiver of Penalty. You do not need to log in to open them. We opened their first screens on October 17, 2026, and did not enter or submit anything.
The first Submit Documentation screen sets the rules. It says you are eligible if “You received a letter from the Department of Revenue within the last 60 days” and “The letter included a Document Submission Key.” It also says: “You will also need your taxpayer ID and a phone number where you can be reached.”
The second Submit Documentation screen is titled “Enter Your Letter ID.” It has one text box, labeled “Document Submission Key.” It also asks one question: “Are you an Individual or a Business?” The screen we saw had nothing else to fill in.
To upload documents with Submit Documentation, follow these steps.
- 1Go to the Georgia Tax Center home page at gtc.dor.ga.gov.
- 2Under Tasks, click Submit Documentation.
- 3Read the eligibility screen. It covers letters received “within the last 60 days.” Click Next.
- 4Type the code from your letter in the Document Submission Key box.
- 5Choose Business or Individual, then follow the screens that come next. We did not go past this point.
The other two tasks also ask for the code. The Protest a Proposed Assessment screen lists what you need: “The letter ID of the proposed assessment.” The Request a Waiver of Penalty screen lists “The letter ID of your assessment.” Its text box is labeled “Letter ID.” That screen says you are eligible if “You have an assessment issued within the last 30 days which includes a penalty.” The same screen adds: “If you want to request a waiver of penalty for older periods (up to 3 years) you can do so after signing in to GTC.” The Department’s penalty waiver page says the same thing about the code: “you will need the Letter ID from your assessment and a detailed reason for requesting the waiver.”
Check the protest deadline on your letter
Uploading a document is one step. Protesting a proposed assessment has its own deadline. The Department’s Protests and Appeals page says you may file a protest “within 45 days from the issued date on the notice.” The Notice of Proposed Assessment page also says 45 days near the top of that web page. Further down, the same page says “Your 30 days to file a protest will be over.” Count from the issued date on your notice. If you are not sure which number applies to you, call the number printed on your letter before the shorter deadline passes.
Letter ID vs Georgia Tax Center login: what the sign-up screen asks for
A Letter ID and a Georgia Tax Center login are separate things. The sign-up screen for a login asks for other information.
The Georgia Tax Center sign-up screen has a list called “You Will Need.” For business accounts it lists six items. The first three are the account type and account ID, a Federal Employer Identification Number (FEIN) for an entity, and a Social Security Number (SSN) or Individual Taxpayer Identification Number (ITIN) for a sole proprietor. The other three are the most recent payment amount, the zip code of the business location, and an email address. None of the six is a Letter ID.
The Department’s GTC FAQ gives a slightly different list. It says a user creating a login will need to give “the account number, zip code, last payment amount (if applicable), and effective date” for at least one of the accounts. The FAQ also explains the account number: “Your Account ID is an eight-digit number and is not your Federal Employer Identification Number or Social Security Number.”
After sign-up, the code you use to log in for the first time comes by email. The FAQ says: “your Authorization Code and a login link will be emailed to you.” The Department pages we read do not describe a code mailed on paper for a first login.
| Question | Letter ID (document submission key) | GTC login for a business |
|---|---|---|
| Where it comes from | Printed on a Department letter | You create it on the sign-up screen |
| What the Georgia Tax Center uses it for | Submit Documentation, Protest a Proposed Assessment, and Request a Waiver of Penalty | Filing, paying, and managing your tax accounts |
| Login needed | Not to open the three Tasks links. The waiver screen says older periods need a sign-in. | Not applicable |
| Time limit stated | Submit Documentation: letter received “within the last 60 days.” Penalty waiver: assessment issued “within the last 30 days”; older periods (up to 3 years) after signing in. | None stated on the sign-up screen |
| How the first code arrives | Not applicable | Authorization Code by email, per the GTC FAQ |
From the Georgia Tax Center screens and the Department’s GTC FAQ, read on October 17, 2026.
If you set up the login years ago and lost access, the Department’s Login and Password Help page covers that case. If you no longer know the email address on the account, it says you “must speak with a Call Center Representative at 877-423-6711 to verify your identity and re-establish access to the account.”
Your two addresses on the Department record
The Georgia Department of Revenue keeps more than one address for a business. When you register a new business in the Georgia Tax Center, the first screen says you will need the “Registered business name, location address and mailing address.”
The Department pages we read, including all 17 pages on its “Did you get a letter?” list, do not say which of those addresses its letters are mailed to. If a letter matters to you, make sure mail sent to either address on your Department record reaches someone who opens it.
The Georgia Department of Revenue is a different agency from the Georgia Secretary of State. Update your address with each agency separately. Our guide to the Georgia annual registration covers the Secretary of State side.
Two Georgia agencies, two records
The Department of Revenue holds your tax accounts and sends tax letters. The Secretary of State holds your LLC or corporation record and its annual registration. Each one has its own address fields.
How to change your address with the Department of Revenue
The Department’s Change Address on Tax Forms page lists three ways. The first is electronic: “If your return is filed electronically (using tax software), the system will automatically update the address.”
The second is in the Georgia Tax Center. Log in, click the More… tab, click Manage Names & Addresses, then open the Addresses tab. Click Add for a new address, or click an existing address to update it. Then click Next, Submit, and OK.
The third is on paper. The page says: “When completing your paper form, check the box to indicate that the address has changed.”
The page does not say how long an update takes, or whether a letter already mailed is sent again. If an old address may still be receiving your mail, our guide on business mail returned as undeliverable covers what happens to mail that cannot be delivered.
If you are choosing a new mailing address for your Department record, our free address checker can show you how USPS records it. The checker shows whether USPS classifies an address as Commercial, Residential, or Unknown, and whether the address carries a CMRA (commercial mail receiving agency) flag. Our Silicon Valley and Los Angeles pages describe the business addresses save office offers.
California works differently. One way to get online access to a business record in its filing portal is a PIN that the Secretary of State mails to the business’s mailing address on file. Our guide to the bizfile “Request Pin” letter covers that step.
Not legal or tax advice
This guide summarizes Georgia Department of Revenue pages and Georgia Tax Center screens as read on October 17, 2026. Screens and wording change. Use the contact details printed on your letter, which the Department’s letter pages call “the best contact information,” and ask a Georgia tax professional about deadlines that apply to you.
Frequently Asked Questions
Sources & References
Primary sources this guide is based on.
- 1Georgia Department of Revenue · Did you get a letter? (accessed October 17, 2026)
- 2Georgia Department of Revenue · Notice of Proposed Assessment (Letter) (accessed October 17, 2026)
- 3Georgia Department of Revenue · Official Assessment and Demand for Payment (Letter) (accessed October 17, 2026)
- 4Georgia Department of Revenue · Notice to Submit Return (Letter) (accessed October 17, 2026)
- 5Georgia Department of Revenue · How to Register a New Business on GTC (accessed October 17, 2026)
- 6Georgia Department of Revenue · Georgia Tax Center (Sign Up, Submit Documentation, Protest a Proposed Assessment, Request a Waiver of Penalty, Register a New Business screens) (accessed October 17, 2026)
- 7Georgia Department of Revenue · Introduction to GTC, FAQ (accessed October 17, 2026)
- 8Georgia Department of Revenue · Change Address on Tax Forms (accessed October 17, 2026)
- 9Georgia Department of Revenue · Protests and Appeals (accessed October 17, 2026)
- 10Georgia Department of Revenue · TSD-3 Request a Penalty Waiver (accessed October 17, 2026)
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