Do your due diligence. Thoroughly research your problem, solution, and audience before writing to ensure you are not missing any important details.
Trim unnecessary information. If it doesn’t clarify the problem, support your solution, or position you as the ideal candidate to propose the solution, then it’s not relevant.
Break up long paragraphs into bullet points, numbered lists, tables, or smaller paragraphs with shorter sentences.
Use images where appropriate to make your proposal more visually engaging. Again, keep it relevant—think charts, graphs, or other graphics that will help illustrate your main points.
Align your overall tone with your brand’s personality. This will make a good impression whether your proposal is for customers/clients or colleagues.
Read your proposal out loud (in private) to listen for the correct tone, or have someone else read it to you.
Proofread your work. Even minor spelling and grammatical mistakes can be distracting and detract from your credibility, no matter who your audience is.