One of the biggest concerns when buying signed sports memorabilia is whether the autograph is genuine.

Unfortunately, fake autographs exist in every collectible market. Anytime there's money to be made, there will be people trying to take advantage of collectors.

The good news is that many fake autographs leave warning signs if you know what to look for.

While no single clue guarantees an autograph is real or fake, these red flags can help you make better buying decisions.

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Compare the Autograph to Known Authentic Examples

The first thing you should examine is the autograph itself.

Ask yourself:

• Does the signature look similar to known authentic examples?
• Is the overall size consistent?
• Does the autograph have the same angle or slant?
• Does it appear to have been signed naturally and quickly?
• Does the pen pressure look consistent?

Professional authentication companies evaluate many of these same characteristics when examining an autograph.

If something immediately looks unusual, it's worth investigating further.

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Does the Memorabilia Make Sense?

Sometimes the biggest clue isn't the autograph—it's the item.

Ask yourself whether the memorabilia makes sense for that athlete.

For example:

A Babe Ruth autograph on a modern Official Major League Baseball with today's commissioner's signature would be an immediate red flag.

Babe Ruth passed away decades before those baseballs existed.

Likewise, consider:

• Was this type of item available during the athlete's career?
• Is it something they commonly signed?
• Does the era of the memorabilia match the athlete?

If the item itself doesn't make sense, neither does the autograph.

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Look for Trusted Authentication

One of the easiest ways to reduce your risk is to buy memorabilia authenticated by a trusted third-party authentication company.

The three companies most recognized throughout the hobby are:

• Beckett Authentication Services (BAS)
• James Spence Authentication (JSA)
• PSA/DNA

While an autograph authenticated by another company isn't automatically fake, collectors generally place much more trust in these established authentication companies.

That's also why memorabilia authenticated by Beckett, JSA, or PSA often commands higher prices.

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Verify the Authentication Online

Modern authentication should be easy to verify.

Most Beckett, JSA, and PSA items include:

• An authentication hologram
• A unique certification number
• Often a QR code

Always verify the certification number using the authentication company's online database.

The online record should match:

• The athlete
• The type of memorabilia
• The authentication number

If the information doesn't match the item you're buying, ask questions before purchasing.

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Be Careful with Unknown Authentication Companies

Not every authentication company has the same reputation.

If you've never heard of the company, ask yourself:

• Do they have an online database?
• Can the certification number be verified?
• Are they widely recognized by collectors?
• Would major auction houses accept their authentication?

If the answer is no, proceed carefully.

The value of an authentication depends heavily on the reputation behind it.

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Watch for Payment Red Flags

How a seller wants to be paid can also tell you a lot.

Be cautious if a seller insists on payment methods that offer little or no buyer protection, such as:

• PayPal Friends & Family
• Zelle
• Cash
• Mailed checks
• Other non-refundable payment methods

Whenever possible, use payment methods that offer buyer protection in case there's a problem with the transaction.

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Research the Seller

Before spending hundreds—or even thousands—of dollars, take a few minutes to research who you're buying from.

Look for businesses that have:

• A professional website
• A published phone number
• An email address
• A way to contact customer service
• Customer reviews
• A clear return policy

If you can't easily contact the seller before purchasing, that's another warning sign.

Reputable companies are happy to answer questions.

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Review the Return Policy

Even experienced collectors occasionally have concerns about a purchase.

Before buying, make sure you understand:

• The company's return policy
• Authentication guarantees
• Refund procedures
• Customer service policies

A clear return policy shows that a business stands behind what it sells.

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Final Thoughts

Fake sports memorabilia autographs are an unfortunate reality of the hobby, but most collectors can dramatically reduce their risk by doing a little research before buying.

Compare the autograph to known examples, make sure the memorabilia makes sense for the athlete, verify the authentication online, and purchase from reputable companies that stand behind their products.

Taking a few extra minutes before you buy can save you from making an expensive mistake.

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Frequently Asked Questions

How can I tell if a sports autograph is fake?

Compare it to known authentic examples, verify the authentication online, and make sure the memorabilia makes sense for the athlete and the era.

What are the biggest red flags when buying signed sports memorabilia?

Unknown authentication companies, unverifiable certification numbers, unusual payment requests, poor seller communication, and memorabilia that doesn't match the athlete's era.

Should I only buy PSA, Beckett, or JSA authenticated memorabilia?

While other authentication companies exist, Beckett, JSA, and PSA are the most widely recognized and trusted throughout the sports memorabilia hobby.

Is an authentication hologram enough?

No. Always verify the certification number through the authentication company's online database to ensure it matches the item.

What payment methods should I avoid?

Be cautious of sellers who insist on irreversible payment methods like PayPal Friends & Family, Zelle, cash, or checks, especially if you don't know the seller.

What should I do before buying expensive memorabilia?

Research the seller, verify the authentication, compare the autograph to authentic examples, and review the company's return policy.

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Related Guides

• What Is Sports Memorabilia Authentication?
• How to Verify Online Sports Memorabilia Authentication
• What Is Witness Autograph Authentication?
• Certificate of Authenticity vs. Letter of Authenticity
• PSA vs. Beckett vs. JSA: Which Authentication Company Should You Use?