How to Write a Check Amount in Words (Checklist)

To write a check amount in words, spell out the whole-dollar amount, write the cents as a fraction over 100, and fill the rest of the line so nothing can be added. For $1,250.50 that's "One thousand two hundred fifty and 50/100", followed by the word "dollars" if it isn't already printed on the check. The written amount is the legal one, so it's worth getting right.

Why do checks need the amount in words?

Digits are easy to alter: a 1 becomes a 7, an extra zero slips in. Words are much harder to change without it being obvious. That's why checks, promissory notes and many contracts ask for both, and why, if the two disagree, banks generally treat the written amount as the one that counts.

The checklist

Work through these before you sign.

1. Spell out the dollars without "and". In American usage, write "one hundred five", not "one hundred and five". Keep "and" for one job only: separating dollars from cents.

2. Hyphenate 21 to 99. "Twenty-one", "forty-five", "ninety-nine". Nothing else needs a hyphen: "one hundred twenty-three thousand", not "one-hundred".

3. Write cents as a fraction. Use two digits over 100: 50/100, 05/100, 00/100. Don't spell cents out as "fifty cents" on the amount line. The fraction is the convention banks expect.

4. Write 00/100 for whole amounts. "Seventy-five and 00/100" makes it clear nothing was left off. Writing "only" after the amount is also common, especially outside the US.

5. Start at the far left and fill the line. Begin right against the left edge and draw a line from the end of your text to the word "Dollars". That leaves no room for anyone to add "and ninety" or "thousand".

6. Capitalize the first word. "One thousand…" reads cleanly. Some people write the entire amount in capitals. Either is fine as long as it's legible.

7. Match the numeric box exactly. $1,250.50 in the box, "One thousand two hundred fifty and 50/100" on the line. Read them side by side before you sign.

8. Watch round-up amounts. $99.999 isn't a real check amount, but if a calculation gives you one, it rounds to $100.00, not "ninety-nine and 100/100".

Worked examples

Amount	Words
$45.00	Forty-five and 00/100
$105.07	One hundred five and 07/100
$1,250.50	One thousand two hundred fifty and 50/100
$2,026.00	Two thousand twenty-six and 00/100
$18,999.95	Eighteen thousand nine hundred ninety-nine and 95/100

On a US check where "Dollars" is printed at the end of the line, that's all you write. In other contexts, include the currency: "One thousand two hundred fifty dollars and 50/100".

How British style differs

British English adds "and" after hundreds: "one hundred and five", "one thousand two hundred and fifty". It also uses "and" before a final small group, as in "one thousand and five". The UK spelling is "cheque", and amounts are written in pounds and pence, for example "Seventy-five pounds only". Both styles are correct in their own country. Just be consistent within one document.

Turning a number into words with the tool

The Number to Words converter handles the spelling, hyphens and "and" rules for you:

1. Type the Number. Commas are fine: 1,250.50.
2. Under Write as, choose Cheque / check amount.
3. Set Currency (plural), such as dollars, euros or pounds, and Sub-unit (plural), such as cents or pence.
4. Tick British style if you want "one hundred and five".
5. Copy the result.

For 1,250.50 in dollars, the check format gives: "One thousand two hundred fifty dollars and 50/100 (50 cents)". Copy the part you need. For a US check with "Dollars" preprinted, drop the word "dollars" and the bracketed cents. If you clear the Sub-unit field, the bracket disappears. One small difference from the checklist: the tool writes whole amounts and single-digit cents as 0/100 and 7/100. On a check, many people prefer the two-digit 00/100 and 07/100, so adjust that when you copy.

The other modes are handy for documents:

• Words: 1250.50 becomes "one thousand two hundred fifty point five zero". Decimals are read digit by digit, the way you'd say them aloud. Negative numbers start with "minus".
• Ordinal: 21 becomes "twenty-first" and 112 becomes "one hundred twelfth", which is useful for anniversaries, floors and legal clauses.
• Capitalisation: lowercase, Sentence case, Title Case or UPPERCASE for the words and ordinal modes.

It works on whole numbers up to 24 digits, into the sextillions, and the conversion runs entirely in your browser.

Mistakes that get checks questioned

• Words and digits disagree. This is the most common problem. The bank may pay the written amount or return the check.
• Using "and" twice. "One hundred and five and 00/100" is confusing in US usage.
• Leaving space at the end of the line. Always draw the line through.
• Writing "point". "Twelve point fifty dollars" isn't check style. Use "Twelve and 50/100".

FAQ

Do I write "dollars" or not?

If the check has "Dollars" printed at the end of the amount line, no. If it doesn't, add "dollars" before "and 50/100" or at the end.

How do I write an amount under one dollar?

Write "Zero and 75/100", which is also what the tool produces for 0.75. Some people instead write "Seventy-five cents" and cross out the preprinted "Dollars". If you do this often, ask your bank which it prefers.

Can I use numerals for the cents?

Yes. That's the standard: 50/100. Only the whole-dollar part is spelled out.

Spell out your next amount with the Number to Words converter. For dates on formal documents, the Roman Numeral Converter handles a different kind of number styling.