Create Your Amazon Letter of Authorization in Minutes
Stuck on the LOA requirement during Amazon seller account signup? This free custom GPT generates a correctly formatted letter for you — and checks an existing one for rejection risks.
- ✓ Generates a downloadable, signed-ready PDF
- ✓ Uses the exact format that's gotten dozens of accounts approved
- ✓ Explains every field if you're not sure what it's asking for
- ✓ You also get the Word doc template in the same email — free
- ✓ We follow up to make sure your letter was approved
Get Instant Access — It's Free
Enter your email and we'll send you the custom GPT link AND the Word doc template right away.
Free access. We follow up in a couple of days to make sure it worked. Unsubscribe anytime.
Why does Amazon want this from me?
Amazon is asking you — the business owner — to write a letter authorizing your own company to open a seller account. That feels strange. Most brands assume Amazon thinks they're a reseller, or they're not sure what to say.
What's actually happening is that Amazon requires this to verify that the person setting up the account is authorized to act on behalf of the registered business entity. It's a business verification step.
The letter doesn't need to be long. But it does need to be exactly right. The details have to match your seller application precisely — and there are both stated and unstated requirements Amazon's review teams look for.
What causes most rejections?
- ✓Business name doesn't match the seller application exactly
- ✓Using the EIN instead of the state-issued company registration number
- ✓Point of contact name doesn't match the application
- ✓Missing specific language Amazon expects to see
- ✓Unsigned — Amazon automatically rejects unsigned letters
What your letter of authorization must include
- Company letterhead — your logo or company name at the top
- Legal company name — must match the seller application exactly
- Entity type and state — e.g., "an LLC registered in Utah"
- Company registration number — state-issued, not your EIN
- Admin seller account email — the email used to start the application
- Point of contact name — must match the application
- Specific authorization language — wording Amazon's teams look for
- Signature — unsigned letters are rejected every time
- Signer details — title, company address, phone, email
- Date within 180 days — older letters are automatically rejected
Why Use This Tool
Built specifically for brands signing up for their own Amazon seller account
Regular ChatGPT doesn't know this specific situation. This tool does — because it was built from years of helping real brands through exactly this process.
Produces a real, downloadable PDF
Not just text you copy and format yourself. The tool creates a properly formatted PDF with your letterhead that you can sign and upload directly to Amazon.
Meets stated and unstated requirements
Beyond what Amazon publicly documents, there are details their review teams expect. This tool knows what those are from experience with hundreds of real applications.
Explains any field you're not sure about
Not clear on what a field is asking for? Just type the question directly into the tool and it explains it. It's like having someone walking you through the whole thing.
Flags the EIN vs. registration number mistake
This is the most common rejection cause we see. The tool checks for it automatically and helps you find the correct state-issued registration number.
We follow up to make sure it worked
We'll email you after a couple of days to check whether Amazon approved the letter. If it wasn't accepted, we'll help you figure out what needs to change.
Based on a template used hundreds of times
The format in this tool came from a template we've used to help dozens of brands get their seller accounts approved each year. It's not generic — it's tested and proven.
How It Works
From zero to a signed PDF in about two minutes
Have your company information ready and you'll be done before you'd finish filling out a form manually.
Enter your email to get access
Use the form on this page, enter your email, and you get instant access to both the free custom GPT and the Word doc template.
Takes 10 secondsOpen the tool and choose your flow
Tell it whether you want to create a new letter or check an existing one. It handles both.
Paste in your company information
The tool asks for your legal company name, entity type, state, registration number, admin email, brand name, and signer details. Type any question directly into the tool if you're unsure about a field.
Download your formatted PDF
The tool generates a complete, correctly formatted letter as a downloadable PDF. Upload your logo for branded letterhead, or it creates a clean text letterhead using your company name.
Professional and ready to signSign it and upload to Amazon
Sign digitally using Mac Preview or Adobe Acrobat Reader, or print and sign with a pen. Reopen the file to confirm the signature saved before uploading. Don't skip the signature — it's an automatic rejection.
Already Have a Letter?
The tool can review your existing letter too
If you already have a Letter of Authorization — whether you wrote it yourself or got it somewhere else — you don't have to start over.
Get a rejection risk check before you upload to Amazon
Upload your existing letter directly into the tool and it will flag anything likely to cause a rejection. Missing information, mismatched details, incorrect registration numbers, unsigned documents, formatting issues — it catches them all and tells you exactly what to fix.

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Why Trust This
Built by a team that helps brands through Amazon seller account setup every year
The format and language in this tool came directly from working through hundreds of real Amazon seller account applications. We know what Amazon's review teams look for — including the things that aren't publicly documented.
Brands Served Per Year
years helping brands on Amazon
%
US-based team in Orem, Utah
cost to use this tool
Walmart Approved Solution Provider
No Long-Term Contracts
Real Human Consultants
Common Questions
Frequently asked questions
Is this really free?
Yes. Enter your email, get the link, and use it right away. No payment, no trial, no credit card required. You'll also receive the Word doc template in the same email at no charge.
What's the difference between the custom GPT and the Word doc template?
The custom GPT asks you for your information and automatically generates a formatted, downloadable PDF. The Word doc template is a pre-built document you open, make a copy of, and fill in yourself. You'll get both in the same email so you can use whichever you prefer.
Do I need a ChatGPT account to use the custom GPT?
Yes, you'll need a free ChatGPT account to open the custom GPT. You can create one at chat.openai.com. A paid subscription is not required. If you'd rather not use ChatGPT at all, the Word doc template works great too.
What's the difference between a company registration number and an EIN?
Your EIN is issued by the federal government for tax purposes. Your company registration number is assigned by your state when you formed your business entity. Amazon asks for the state-issued number, not the EIN. Confusing the two is the most common reason letters get rejected. The tool flags this, and we also link to a video explaining exactly how to find your state registration number.
Why can't I just use regular ChatGPT for this?
Regular ChatGPT doesn't know this specific situation. There are many different types of letters of authorization in business — reseller authorizations, distribution agreements, IP authorizations — and ChatGPT may pull language from those instead. This custom GPT is built only for brand owners registering their own Amazon seller account, using the exact format and language Amazon's review teams expect to see.
What if my letter gets rejected after using this tool?
We'll email you a couple of days after you access the tools to check in. If it didn't work, email us at hello@fivestarcommerce.com and we'll help figure out what's happening. For more complex seller account situations, you can also schedule a free 30-minute consultation at fivestarcommerce.com.
Ready to get your Letter of Authorization done?
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