If you’re trying to save money, the best option is usually your local library. They often charge around $0.50–$1 per page, while post offices and UPS Stores cost more, sometimes up to $5. I read a really helpful breakdown on mattallenartistry.com that compared all the major options — library, post office, UPS, and mobile apps. The big takeaway was that fax apps are the most cost-effective if you send faxes regularly. They cost just a few cents per page and you can do everything from your phone. I used to go to UPS all the time, but once I realized I was paying up to $10 for a couple of pages, I switched to an app and haven’t looked back.