When you write a check for an amount in the thousands, you spell out the dollar amount on the payment line using words like “one thousand” and “two hundred,” reserve the word “and” for the cents, and express cents as a fraction over 100. The format is straightforward once you see a few examples, and getting it right matters because the written line is the legally binding amount if it ever conflicts with the number in the box.
The Written Amount Line, Step by Step
The long line in the middle of the check (sometimes labeled “Pay” or “Dollars”) is where you write the amount in words. Here is the standard format for a check of $1,250.75:
One thousand two hundred fifty and 75/100
Break that into its parts:
- Thousands: Write “one thousand,” “two thousand,” “three thousand,” and so on.
- Hundreds: Follow with “two hundred,” “three hundred,” etc. You do not need to add “and” between the thousands and hundreds.
- Tens and ones: Continue naturally. “Fifty,” “sixty-three,” “seven.”
- Cents: Write the word “and” only once, right before the cents. Then express cents as a fraction: 75/100, 08/100, 00/100.
If the check has no cents, write “and 00/100” or “and no/100” to make it clear the amount is exact. This prevents anyone from adding cents later.
Examples for Common Amounts
Seeing a few real examples is the fastest way to get comfortable:
- $1,000.00: One thousand and 00/100
- $1,500.50: One thousand five hundred and 50/100
- $2,300.00: Two thousand three hundred and 00/100
- $4,075.12: Four thousand seventy-five and 12/100
- $10,400.99: Ten thousand four hundred and 99/100
- $15,000.00: Fifteen thousand and 00/100
Notice that you never write “and” between the thousands and hundreds. “Two thousand and three hundred” is technically understandable, but it can create confusion because “and” is supposed to signal the start of the cents. Save it for that one spot.
Use “One Thousand Two Hundred,” Not “Twelve Hundred”
Conversational shortcuts like “twelve hundred” or “fifteen hundred” are common in speech, but they are not the best choice on a check. Write “one thousand two hundred” or “one thousand five hundred” instead. Most banks will process “twelve hundred” without a problem, but using the formal phrasing removes any chance of confusion and keeps the payment moving without questions from the bank or the person you are paying.
Filling In the Dollar Box
The small box to the right of the payee line is where you write the amount in numbers. For a check of $1,250.75, write 1,250.75 in the box. A few rules keep this secure:
- Start at the left edge. Push the first digit as far left as possible so nobody can squeeze an extra number in front of it. A check for $50.00 with space to the left could be altered to $850.00.
- Always include two decimal places. Write 1,250.00, not 1,250. The decimal and trailing zeros prevent someone from turning 1,250 into 1,250.99 or worse.
- Skip the dollar sign. The box already has one printed, so you do not need to add another.
Why the Written Line Matters Most
If the number in the box says $1,250.00 but the written line says “One thousand two hundred and 00/100,” the bank goes with the written words. Under the Uniform Commercial Code, which governs checks across the country, words prevail over numbers whenever the two contradict each other. That is why accuracy on the written line is so important. Double-check that both amounts match before you sign.
Protecting Against Alterations
After you finish writing the amount in words, draw a line through any remaining blank space on that line all the way to the word “Dollars” (or whatever is printed at the end). This prevents someone from adding extra words to inflate the amount. For example, if “One thousand two hundred and 00/100” only fills half the line, a horizontal line through the rest of the space closes the gap.
Use the same principle in the dollar box. Start at the far left, include the decimal and two digits for cents, and leave no room before or after the number. These small habits make it much harder for anyone to tamper with the check after you hand it over.