They want to know what affects them and what they have to do. Write in a conversational style and use clear and simple language - words known and used by many people. Don't use jargon. Avoid technical language. If we must use it, explain or provide an example.
Financial services are complex and intimidating enough to many people.
Use good document design type size large enough to read, meaningful headings, lots of white space, and lists and tables to organize information. Be courteous and friendly. Add a human touch. We're in the business of building and keeping relationships. In conclusion Businesses can benefit by learning more about literacy issues.