How to Write Numbers in Words on a Check (With Examples)

By HSP · Published October 5, 2026 · 5 min read · Conversions

Checks (or cheques, in British and Canadian spelling) are used less than they once were, but they are still common for rent, deposits, payments to contractors and some government and business transactions. The line where you write the amount in words is the one people most often get wrong. Writing it clearly matters, because if the words and the figures disagree, the words generally take priority.

The parts of the amount

A check has two places for the amount:

• The numeric box, usually next to the dollar sign, for the figures: 1,250.75.
• The written line, which ends with the printed word “Dollars”, for the amount in words.

Step by step

1. Write the whole-dollar amount in words, starting at the far left of the line so nothing can be added in front.
2. Write “and” to separate dollars from cents.
3. Write the cents as a fraction over 100, such as 75/100. Use 00/100 for a whole-dollar amount.
4. Draw a line from the end of your writing to the printed word “Dollars” so nobody can add extra words.

Examples

Not sure how to spell a large number? Type it into the number to words converter and tick “Currency (cheque) style” to see the amount written out with dollars and cents.

Rules for writing numbers in words

Use hyphens for 21 to 99

Compound numbers from twenty-one to ninety-nine take a hyphen: twenty-one, forty-two, ninety-nine. Multiples of ten (twenty, thirty) do not.

Use “and” only before the cents

In American usage on checks, “and” marks the decimal point. Write “one hundred fifteen”, not “one hundred and fifteen”, so the reader cannot confuse where the cents begin. (In British English, “one hundred and fifteen” is normal in speech, but keeping “and” for the cents is still the clearest choice on a cheque.)

No commas needed

You do not need commas between thousands and hundreds in words: “one thousand two hundred fifty”.

Capitalisation

Capitalise the first word. Some people write the whole amount in capitals for clarity, such as “ONE THOUSAND TWO HUNDRED FIFTY”. Either is acceptable as long as it is legible.

Why the words matter more than the numbers

In the United States, the Uniform Commercial Code, which most states have adopted, covers what happens when the terms on a check contradict each other. Section 3-114 says that handwritten terms prevail over typed ones, typed terms prevail over printed ones, and words prevail over numbers. So if the box says $150.00 but the line says “One hundred five and 00/100”, the bank may treat the check as $105. Banks may also return a check when the amounts do not match, causing delays and possibly fees. Other countries have their own rules, but taking care to make both amounts match avoids the problem everywhere.

Tips to prevent fraud

• Start writing at the far left of both the numeric box and the written line.
• Always fill the empty space after the words with a line.
• Use a pen with permanent ink, not pencil or erasable ink.
• Never sign a blank check.
• If you make a mistake, write “VOID” across the check and start a new one rather than correcting it.
• Record the check number, date, payee and amount in your register.

Other parts of a check, briefly

• Date: today’s date in the top right.
• Pay to the order of: the person’s or company’s full name.
• Memo: optional note such as an invoice or account number.
• Signature: sign the bottom-right line the same way as on your bank records.

Working out the amount first

If you are paying an invoice that needs tax added, calculate the total before you write the check; the sales tax calculator and our guide to calculating sales tax show how. Round to the nearest cent, because checks cannot show fractions of a cent.

Numbers in words elsewhere

The same rules help with invoices, contracts, wedding invitations and formal documents. Some documents use Roman numerals, for example for years on monuments or film credits; the Roman numeral converter handles those. If you need to change the capitalisation of an amount you have typed, see how to change uppercase to lowercase, and for another kind of number conversion, read how to convert binary to decimal.