Fancy Serial Number Checker

Discover if your currency has a valuable fancy serial number and learn what makes these numbers special to collectors.

Did you know? Some fancy serial numbers can be worth hundreds or even thousands of dollars to collectors!

Check Your Serial Number

Enter your bill's serial number below to see if it's a valuable fancy serial number:

Enter the serial number exactly as it appears on your bill, including any letters.
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Types of Fancy Serial Numbers

Collectors recognize several categories of fancy serial numbers, each with its own appeal and value:

Solid Numbers

Serial numbers with all digits the same (e.g., 11111111, 22222222).

Value Range: $500-$1,500+ depending on denomination and condition

Rarity: Very rare (1 in 11,111,111 notes)

Solid 8s and 9s are typically the most valuable, while solid 1s are the most commonly found.

Example

88888888

Ladder Numbers

Serial numbers with sequential digits, either ascending (e.g., 12345678) or descending (e.g., 87654321).

Value Range: $300-$1,000+ depending on denomination and condition

Rarity: Very rare (1 in 11,111,111 notes)

Perfect ladders are extremely rare. Descending ladders (87654321) are typically more valuable than ascending ladders (12345678).

Example

12345678

Radar/Palindrome Numbers

Serial numbers that read the same forward and backward (e.g., 12344321, 88899888).

Value Range: $40-$500+ depending on denomination and condition

Rarity: Rare (approximately 1 in 1,000,000 notes)

Perfect radars are highly sought after. "Super radars" with additional patterns are even more valuable.

Example

12344321

Binary Numbers

Serial numbers containing only two digits (e.g., 10101010, 10001000).

Value Range: $20-$400+ depending on pattern, denomination and condition

Rarity: Uncommon (approximately 1 in 100,000 notes)

Binary patterns with repeating sequences (like 10101010) are more valuable than random arrangements of two digits.

Example

10101010

Low Serial Numbers

Serial numbers under 100 (e.g., 00000023, 00000007).

Value Range: $20-$1,000+ depending on how low the number is

Rarity: Rare (only 100 per 100 million notes)

Single-digit serials (00000001 through 00000009) are the most valuable, with number 1 being the most prized.

Example

00000042

Repeaters

Serial numbers with repeating patterns (e.g., 12121212, 45454545).

Value Range: $25-$250+ depending on pattern clarity and condition

Rarity: Uncommon (approximately 1 in 50,000 notes)

Double repeaters (ABABABAB) are more common and less valuable than quad repeaters (ABCDABCD).

Example

12121212

Value Factors

Several factors affect the value of fancy serial numbers:

  • Pattern Clarity

    Clearer, more perfect patterns command higher prices

  • Denomination

    Higher denominations typically have higher premiums

  • Condition

    Uncirculated notes are worth more than circulated ones

  • Series Year

    Older series can command higher premiums

  • Rarity

    Patterns that occur less frequently are more valuable

Recent Sales

$1 Solid 7s

Serial: 77777777

$650

eBay, March 2024


$20 Radar

Serial: 12344321

$175

Currency Auction, April 2024


$100 Low Number

Serial: 00000023

$425

Private Sale, February 2024

Expert Tips

Check Your Change

Always check the serial numbers on bills you receive as change. You might find a valuable fancy serial number!


Condition Matters

Keep fancy serial number bills in the best condition possible. Even minor damage can significantly reduce their value.


Be Patient When Selling

Finding the right buyer for fancy serial numbers can take time. Specialized collectors often pay more than general currency dealers.