A fancy serial number usually adds about $5-50 to a modern US bill as of October 2026, and only a few patterns add much more. PCGS puts a crisp uncirculated modern $1 radar note at about $25-50. Solid serials, where all eight digits match, are the big exception: an ungraded $1 with all 3s sold for $1,600 and a $100 with 88888888 for more than $19,000.
What decides the price is how rare the pattern is, how clean the note is and how many collectors want it. A radar turns up about once in 10,000 notes, so plenty exist. A solid turns up nine times in 100 million. Patterns that only mean something to the owner, such as a birthday, sell for a small premium at best.
Quick answer
- Common fancy patterns on circulated modern notes (birthdays, near solids, simple repeaters, short binaries): face value to roughly $10 over face.
- Radar notes: about $25-50 for a crisp modern $1 according to PCGS; more than $500 for some late 20th century $100s.
- Super radars, true ladders, low numbers under 100, and high-quality repeaters: roughly $100 to over $1,000, depending on note and condition.
- Solid serials: an ungraded $1 with 33333333 sold for $1,600, and a $100 with 88888888 for more than $19,000 at Heritage in 2024.
- Serial number 1 notes are the top of the field: five 1914 notes numbered 1 brought more than $600,000 in total in 2011.
How do you check a fancy serial number, step by step?
Read the full serial, name the pattern, then check the note itself.
- Find the serial number. On modern US Federal Reserve Notes the serial is printed twice on the front, in green like the Treasury seal: at the upper right and lower left on a $1 or $2, and at the upper left and lower right on the redesigned $5 to $100. On $20 to $100 notes since Series 1996, $5 and $10 since Series 1999, and $1 notes since Series 2013, it reads as two letters, eight digits and a final letter, like MB 12344321 A. Collectors judge the eight digits; the letters can add a bonus.
- Check both serials match. The two printed serials on a note should be identical. If they differ, that is a mismatched serial error, which our guide to misprinted money covers, not a fancy number.
- Look for a star. A star at the end of the serial marks a replacement note. A fancy number on a star note is rarer than the same number without one; our star notes guide covers print runs.
- Name the pattern. PMG, one of the main banknote grading services, recognizes ladders, binaries, radars, repeaters, solids, rotators, serial numbers 1 to 10 and combinations of these. The table below shows each.
- Count how strict the pattern is. A true ladder (12345678) is far rarer than a partial one. A solid (77777777) is far rarer than a near solid (77777776). Collectors pay for the strict version.
- Judge the note. A crisp, uncirculated note with sharp corners and no folds is worth several times a worn one with the same serial. Most of the premiums quoted here are for uncirculated notes.
- Note the denomination and series. Higher denominations and older series carry more on the same pattern, because fewer were saved.
- Price from sold results, matching pattern, denomination, series and condition. Asking prices for fancy serials run far ahead of what sells.
What are the fancy serial number types?
These are the patterns collectors and the grading services name, with how rare each is in a block of 100 million numbers.
| Pattern | Example | What it means | How rare |
|---|---|---|---|
| Solid | 55555555 | All eight digits the same | 9 per 100 million numbers |
| True ladder | 12345678 | Every digit one step up or down | A handful per 100 million |
| Radar | 12344321 | Reads the same forward and backward | About 1 in 10,000, per PCGS |
| Super radar | 81111118 | Radar with six identical middle digits | About 1 in 1.1 million (90 per 100 million) |
| Repeater | 12341234 or 12121212 | A group of digits repeated; PMG needs at least two digits repeated at least twice | About 1 in 10,000 for 4-digit repeaters; 90 per 100 million for 2-digit ones like 12121212 |
| Binary | 10011010 | Only 0s and 1s | 255 possible numbers per block, counting 00000001 to 11111111 |
| Rotator | 69811869 | Reads the same upside down; only 0, 1, 6, 8 and 9 rotate | Rare |
| Low number | 00000042 | Small numbers at the start of a block | 99 under 100 in each block |
| Serial number 1 to 10 | 00000001 | The first ten notes printed in a block | 10 per block |
| Birthday or date | 07041776 | Digits that spell a date | Very common; only the owner's date is special |
| Near solid | 77777776 | Seven of eight the same | Several hundred per 100 million |
PMG does not count 10, 100, 1000 or 1 million as binaries; according to its 2017 guide to fancy serial numbers, 1001 is often the first binary it recognizes.
What are fancy serial numbers worth?
Values as of October 2026 for modern Federal Reserve Notes. Sold results are marked; ranges without a named sale are hedged because sales vary widely by note and condition.
| Pattern | Circulated | Crisp uncirculated |
|---|---|---|
| Birthday, date, near solid | Face to roughly $5 over | Roughly $5-20 over face |
| Short binary or 4-digit repeater | Face to roughly $10 over | Roughly $10-40 |
| Radar, modern $1 | Roughly $5-15 | About $25-50, per PCGS |
| Radar, late 20th century $100 | Above face | More than $500 for some, per PCGS |
| Super radar, 2-digit repeater, eight-digit binary | Roughly $25-100 | Roughly $100-500 |
| Low number under 100 | Roughly $20-100 | Roughly $100-500; serial 1 to 10 more |
| True ladder, 12345678 or 87654321 | Hundreds | Roughly $1,000 and up |
| Solid | Hundreds to low thousands | $1,600 for an ungraded $1 of 3s; over $19,000 for a $100 of 8s |
| Serial number 1, early series | n/a | Five 1914 SN1 notes: more than $600,000 together in 2011 |
According to PCGS, contemporary crisp $1 radar notes sell for about $25-50, late 20th century $100 radars for more than $500, and vintage notes with these patterns can reach thousands of dollars. According to news reporting that cited Heritage Auctions, a near-perfect $100 bill with serial 88888888 sold for more than $19,000 in 2024, and the same report noted an ungraded $1 with all 3s selling for $1,600. PMG reported that five 1914 San Francisco Federal Reserve Notes with serial number 1 realized more than $600,000 in total in separate lots in April 2011, after their first owner had bought them from the bank for $185.
How do dealers price fancy serial numbers?
Dealers start with the pattern and its rarity, then adjust for four things.
Condition. Fancy number collectors want crisp notes. A fold through the middle can halve the price of a radar or a repeater, and a worn solid sells for a fraction of a gem one. Many valuable fancy notes are sold graded by PMG or PCGS Banknote, and dealers price from the grade.
Denomination. A $100 radar sells for more than a $1 radar because far fewer $100s pass through collectors' hands and the face value itself is higher.
Series and star. Older series and star notes add to the same pattern. A radar on a 1950s silver certificate or a star note is scarcer than one on a recent $1.
Combinations. PMG labels combined patterns, such as a radar that is also a repeater and a rotator (808808 in its example), and super pedigrees where the letters make the serial even more striking. Each extra feature adds demand.
Buyers also pay for sets: consecutive runs of radars, every solid from 11111111 to 99999999 on one denomination, or a matching serial across denominations. A single note that completes someone's set can bring more than the table suggests. The rarer and cleaner the pattern, the more it pays to sell through a currency auction house rather than to a local dealer.
Say you find a radar in your wallet
Say a $1 bill from change reads PL 30588503 B. Read backward, the eight digits are 30588503: it is a radar. It has two folds and soft corners, so it is circulated. The serial has no star, and the digits are mixed rather than repeating.
That is a common radar in circulated condition, worth roughly $5-15 to a collector. Had it been crisp and uncirculated, PCGS's $25-50 range would apply. If it read 38888883, a super radar, it would be worth setting aside and pricing from sold results, probably in the tens to low hundreds even folded. The same steps apply to any note: read the digits, name the pattern, check the condition.
Common mistakes
- Counting the letters as part of the pattern. The eight digits decide it; letters only add a bonus on special combinations.
- Pricing a near solid as a solid. 77777776 is a nice number. 77777777 is the rare one.
- Trusting asking prices. Fancy serial listings at hundreds of dollars for common radars and birthday notes rarely sell.
- Ironing or washing a note to make it crisp. Dealers spot pressed notes, and they sell as circulated.
- Spending a radar or a solid. Keep any note with a pattern flat in a currency sleeve until you have checked it.
- Assuming a fancy number is an error. It is a normal note with a lucky serial. Errors are a separate category; see old dollar bills worth money for the full list of what makes paper money valuable.
How WorthPic reads banknote serial photos
WorthPic runs on the newest and most capable AI model available, tuned for exactly this kind of identification. From a photo of the front of a note it reads both serial numbers, the letters, any star, the series year, the seal and the denomination, names the pattern, and checks that the two serials match. It notes folds, soft corners and stains that decide the condition. It then gives an honest US dollar value range with a most likely figure, says what drives the price and which extra photo would help. What it cannot know from a photo is whether a note has been pressed or washed, small tears hidden by the angle, or the exact grade. It identifies and estimates. It does not authenticate, grade or appraise, and for currency that might be counterfeit, see how to tell if money is counterfeit.
What to photograph
- The full front of the note, flat, in daylight, with both serial numbers readable.
- Each serial number close up, sharp enough to read every digit and letter.
- The back of the note, for folds and stains.
- The note against the light, which shows folds and thin spots.
- For a run of consecutive notes, all of them in order in one photo.
When to get it looked at in person
A birthday note or a folded common radar does not need an expert; keep it or sell it on a marketplace. For a solid, a true ladder, a serial under 100, a super radar, a fancy number on a star note or anything uncirculated with a strong pattern, a currency dealer can tell you its market quickly, and PMG or PCGS Banknote grading is what serious buyers expect at that level. Heritage Auctions, Stack's Bowers and Lyn Knight run regular currency sales and handle fancy serials. For notes with a small red or blue seal in the same envelope, see our guides to two dollar bills and old dollar bills. Our overview of stamps and banknotes covers star notes, old bills and the grading services that matter at the top of the market.
Sources
- PMG: Fancy serial numbers on currency: the patterns PMG recognizes, its binary, repeater and rotator rules, combinations and super pedigrees.
- PCGS: What are radar notes?: radar odds of about 1 in 10,000, the super radar pattern, $25-50 for a crisp modern $1 radar and over $500 for some late 20th century $100 radars.
- PMG: Heritage offers red seal serial number 1 notes: the five 1914 San Francisco serial number 1 notes that realized more than $600,000 in separate lots in April 2011.
- WPRI: Solid serial number banknotes: the $100 88888888 sale over $19,000 in 2024 per Heritage, and a $1,600 sale of an ungraded solid $1.