writing numbers in arabic words · the financial standard

If you've ever written a cheque in Arabic, signed a contract with an Arabic amount clause, or issued an invoice in the Gulf, you've encountered the requirement to write the amount "in words" — not just digits. And if you've tried to do it correctly, you've discovered that Arabic number-word agreement is genuinely one of the most complex grammatical systems in any living language.

why amounts are written in words

Digits can be altered. A 1 can become a 7, a 0 can become an 8. Writing the amount in words alongside the digits is a fraud prevention measure used worldwide, but it's especially important in Arabic-language legal and financial documents where it's often the legally binding amount in case of discrepancy.

In many Gulf courts, if the digit amount on a cheque doesn't match the written amount, the written amount takes precedence. Getting it wrong isn't just embarrassing — it can be legally consequential.

the singular-dual-plural system

Arabic has three number forms where English has two. English has "one dollar" (singular) and "two dollars" / "three dollars" / "a hundred dollars" (all plural). Arabic has:

• Singular (مفرد): used with the number 1. "ريال واحد" (one riyal)
• Dual (مثنى): used with the number 2 only. "ريالان" (two riyals) — note the special "-an" suffix, not the regular plural
• Plural (جمع): used with numbers 3–10. "ثلاثة ريالات" (three riyals)
• Singular accusative (مفرد منصوب): used with numbers 11 and above. "أحد عشر ريالاً" (eleven riyals — note the tanween)

The number 2 is almost always expressed using the dual form of the noun rather than writing "اثنان" + noun. So "two dinars" is "ديناران" not "اثنان دينار."

the gender agreement trap

Arabic numbers 3–10 take the opposite gender of the noun they modify. If the currency unit is masculine (ريال, دينار, درهم), the number takes the feminine form: ثلاثة ريالات (three riyals — ثلاثة is feminine). If the currency unit is feminine (ليرة, روبية), the number takes the masculine form: ثلاث ليرات.

This reversed-gender agreement is counter-intuitive and is one of the most common mistakes even native Arabic speakers make in formal writing. Financial institutions in the Gulf have style guides specifically for this.

the "la ghayr" closing

Arabic financial writing traditionally ends the amount with "لا غير" (la ghayr — "no more" or "only"), equivalent to writing "only" after an amount in English. "ألف ومائتان وأربعة وثلاثون ريالاً سعودياً لا غير" — one thousand two hundred and thirty-four Saudi riyals only.

This closing phrase is legally significant in many Gulf jurisdictions and is expected on cheques, contracts, and official financial documents.

currency-specific conventions

Each currency has its own unit names for the minor denomination, and critically, different subdivision ratios:

• Saudi Riyal: 100 halalah (هللة / هللات)
• UAE Dirham: 100 fils (فلس / فلوس)
• Kuwaiti Dinar: 1000 fils — not 100
• Bahraini Dinar: 1000 fils
• Omani Rial: 1000 baisa (بيسة / بيسات)
• Tunisian Dinar: 1000 millimes (مليم / ملاليم)
• Egyptian Pound: 100 qirsh (قرش / قروش)

The 1000-subdivision currencies (KWD, BHD, OMR, TND) catch people off guard. Writing "1.500 KWD" in words is "دينار ونصف" (one and a half dinars), not "دينار وخمسمائة فلس."