What Is the Symbol for Mexican Pesos? A Quick Guide to the Right Way to Write It

If you’ve ever wondered what the symbol for Mexican pesos looks like, you’re not alone. The correct symbol is the Mexican peso sign, a stylized “$” with an extra horizontal line through it: “$”. It’s not just a dollar sign with extra flair—it’s a distinct mark that sets the Mexican currency apart from others. Using the right symbol matters, especially when writing prices, invoices, or financial documents to avoid confusion or errors.

Why the Mexican Peso Symbol Looks the Way It Does

The Mexican peso symbol evolved from the Spanish dollar, which was widely used in colonial trade. Over time, the symbol was simplified and stylized into the “$” with two horizontal lines, making it instantly recognizable. Unlike the U.S. dollar sign, which has one or two vertical lines, the Mexican version uses horizontal lines to create a cleaner, more modern look. This design helps distinguish it in contracts, receipts, and digital payments.

Common Mistakes When Writing the Symbol

One of the biggest mistakes is using a plain dollar sign (“$”) instead of the Mexican peso symbol. While it might seem minor, mixing them up can lead to misunderstandings in formal documents or financial transactions. Another error is placing the symbol incorrectly—it should always come before the amount, like $100, not 100$. Some people also confuse it with the centavo symbol (“¢”), which is used for fractions of a peso.

Where to Find the Symbol on Keyboards and Devices

Typing the Mexican peso symbol isn’t always straightforward. On Windows, you can use the Alt code Alt + 36 or switch to a Spanish (Mexico) keyboard layout. Mac users can press Option + 4 after enabling the Mexican keyboard. Mobile users can long-press the dollar sign on most keyboards to reveal the peso symbol. If you’re working in a spreadsheet or word processor, check the “Insert Symbol” menu for the exact character.

A stylized illustration of the Mexican peso symbol, represented as a clean, modern design with two horizontal lines through the dollar sign

When to Use the Symbol vs. the Word “Pesos”

In formal writing, like contracts or bank statements, the symbol is preferred for clarity and brevity. However, in casual contexts—such as text messages or social media—writing out “pesos” or using “MXN” (the currency code) can work just as well. For example, $500 MXN is a clear way to specify the currency, while 500 pesos avoids any ambiguity. The key is consistency within your document or message.

A Quick Recap to Avoid Confusion

Use the Mexican peso symbol (“$”) with two horizontal lines for official documents.
Place the symbol before the amount, never after.
Double-check keyboard shortcuts or symbol menus if typing it manually.
When in doubt, pair the symbol with “MXN” for extra clarity.

Getting the Mexican peso symbol right is a small but important detail. Whether you’re sending an invoice, writing a contract, or just chatting about prices, using the correct symbol ensures your message is clear and professional. Next time you need to write a peso amount, take an extra second to confirm you’re using the right mark—it makes a difference.