Writing Numbers in Words on Invoices and Contracts
Contracts often state an amount twice, once in words and once in figures. Doing it consistently removes a whole category of disputes.
Why spell out amounts at all
A figure can be changed by adding a digit, or misread because of a smudge or a different decimal convention. A word is much harder to change. That is why lawyers and finance teams have written important sums as “USD 12,500 (twelve thousand five hundred US dollars)” for generations.
Where to use it
- Contract prices and penalties. Purchase price, deposit, monthly fee, liquidated damages.
- Payment instructions and promissory notes.
- Invoices in some countries. Several jurisdictions expect or traditionally include the total in words.
- Receipts for cash. A written amount reduces disputes about how much was handed over.
A reliable pattern
Put the figure first and the words in parentheses directly after it, with the currency stated both times:
The Buyer shall pay EUR 1,234.56 (one thousand two hundred thirty-four euros and fifty-six cents).Numbrate produces the words part; here the English currency mode gives “one thousand five hundred euros and fifty cents” for 1,500.50 EUR. Paste the result next to the figure and you are done.
Rules that avoid ambiguity
- Always name the currency. “Dollars” alone is ambiguous between the US, Canada, Australia and others. Use the ISO code (USD, CAD, AUD) as well.
- Agree which one wins. Add a sentence: “If the words and the figures differ, the words prevail.” Many contracts already include one. Check that yours does.
- Mind the decimal separator. 1,234 means one thousand two hundred thirty-four in English but a little over one in German. Writing the words next to the number removes the doubt.
- Be careful with “billion”. Older documents from parts of Europe may use it for a million million. See long and short scale.
- Never round silently. If the figure has more decimals than the currency allows, fix the figure first. Numbrate refuses such input rather than rounding it for you.
In another language
For bilingual contracts, convert the same amount in each language. The German version of 1,234.56 EUR reads eintausendzweihundertvierunddreißig Euro und sechsundfünfzig Cent, and the French version mille deux cent trente-quatre euros et cinquante-six centimes. Comparing the two quickly shows whether the figures match.
Numbrate is a writing aid, not legal advice. For binding documents, have the final wording reviewed against the law and conventions that apply to you.
Frequently asked questions
Is it mandatory to write amounts in words in a contract?
Usually not by law, but it is good practice for important sums, and some jurisdictions or institutions require it for particular documents. Check the rules that apply to yours.
Which should prevail, the words or the figures?
Most legal traditions treat the words as more reliable. State the priority explicitly in the contract rather than relying on the default.