How much is a ladder serial number worth?

A true ladder (12345678) can be worth $500-$1,500 depending on denomination and condition. Descending ladders (87654321) are worth $400-$1,000. Partial ladders are worth less.

What is a radar note?

A radar (palindrome) serial number reads the same forwards and backwards, like 82455428 or 12344321. They typically sell for $20-$100, with 'super radars' like 01111110 worth $100-$500.

How rare are solid serial numbers?

Extremely rare. Only 9 solid numbers (11111111 through 99999999) exist per 100 million bills printed. Finding one in circulation is exceptionally unlikely.

Should I spend bills with partial patterns?

Partial patterns like a single triple (45555567) or incomplete ladder (12345679) usually aren't worth more than face value. Save only complete, impressive patterns.

Published: January 6, 2025

Value Guide

Understanding Valuable Serial Numbers

Identify valuable serial number patterns like ladders, radars, and solid numbers.

The Most Valuable Serial Number Patterns

Every U.S. bill has a unique 8-digit serial number. While most are random and worth face value, certain patterns are highly sought after by collectors. Here are the patterns that can turn a $1 bill into a $500+ collectible.

Fancy serial number checker tool Rare serial numbers on dollar bills

88888888

Solid Number: All same digits. Worth $500-$5,000+

12345678

Ladder: Sequential ascending. Worth $500-$1,500

87654321

Reverse Ladder: Sequential descending. Worth $400-$1,000

00000012

Low Number: Starts with zeros. Worth $50-$500

82455428

Radar: Palindrome, reads same both ways. Worth $20-$100

45454545

Super Repeater: Alternating pattern. Worth $50-$300

10110010

Binary: Only 1s and 0s. Worth $30-$150

07041776

Birthday: Date format. Worth $20-$500 (historic dates worth more)

How to Check If Your Serial Number Is Valuable

Checking your bills takes just seconds and could reveal something worth hundreds of dollars. Look at the green serial number on the front of any bill; it appears twice (upper right and lower left). Then check for these characteristics:

Check your serial number now Fancy serial numbers guide

All Same Digits?

If all 8 digits are identical (77777777), you have a solid, extremely rare and valuable.

Counts Up or Down?

If digits go 1-2-3-4-5-6-7-8 or the reverse, you have a ladder.

Starts with Zeros?

Low numbers (00000001-00001000) are collectible. Lower = more valuable.

Same Backwards?

If it reads the same forwards and backwards (radar), it's worth checking.

Only Two Digits?

Binary patterns using just two numbers are collected.

Looks Like a Date?

MMDDYYYY format dates, especially historic ones, have premium value.

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Serial Number Value Chart

Values depend on the pattern rarity, denomination, and bill condition. Uncirculated bills command 2-3x the prices shown for circulated examples.

PCGS currency value guide PMG paper money grading

Pattern Type	Example	Typical Value	Rarity
Solid	11111111	$500-$5,000+	9 per 100 million
True Ladder	12345678	$500-$1,500	1 per 100 million
Low Single Digit	00000001	$2,000-$15,000	1 per 100 million
Low Double Digit	00000025	$100-$500	99 per 100 million
Super Repeater	45454545	$50-$300	~10,000 per 100M
Radar	74688647	$20-$100	~10,000 per 100M
Binary	10011001	$30-$150	~250,000 per 100M
Seven of a Kind	77777778	$40-$150	~70 per 100M
Birthday (historic)	07041776	$200-$2,000	Very rare
Birthday (common)	03151990	$20-$50	Common

What Increases Serial Number Value

Beyond the pattern itself, several factors can multiply what collectors will pay for your fancy serial number:

Learn more about star notes Rare dollar bills worth money Rare bills identifier

★ Star Note

Combine a fancy serial with a star note replacement and value can 2-3x.

Higher Denomination

$100 fancy serials are worth 50-100% more than $1 fancy serials.

Uncirculated Condition

A crisp, never-folded bill is worth 2-3x a circulated one.

Multiple Patterns

A radar that's also binary? Premium value for pattern combos.

Older Series

Pre-1970s series with fancy serials command higher premiums.

Features

How CashScan Helps With Serial Numbers

Pattern Detection

Identify ladders, radars, repeaters, binary, and solid serial numbers.

Low Number Alerts

Spot low serial numbers that collectors pay premiums for.

Birthday Notes

Find serial numbers matching dates in MMDDYYYY format.

Value Guide

Learn what different patterns are worth to collectors.

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FAQ

Check Your Serial Numbers FAQ

Solid numbers (88888888), ladders (12345678), low numbers (00000001-00000100), radars (palindromes), and binary patterns are most valuable. A solid serial can be worth $500-$5,000+ depending on denomination.