This letter concerns

You place this phrase at the very beginning of your message. It usually follows the greeting like Dear Mr. Smith. After the phrase, you must include a noun or a noun phrase. For example, you might write This letter concerns your recent invoice. It acts as the anchor for your entire message. You don't need to add "I am writing because" if you use this. It is strong enough to stand on its own.

Use this when you need to be official or serious. It is perfect for business correspondence or legal matters. If you are writing to a bank, a landlord, or a government office, this is your best friend. It shows you are organized and professional. It is also great for job applications or formal complaints. It sets a tone of "I am here to handle business."

Never use this with your friends or family. If you write This letter concerns our dinner plans to your best friend, they will think you are mad at them. It is far too stiff for casual situations. Also, avoid using it in spoken conversation. You wouldn't walk up to a barista and say, "This conversation concerns my latte." It belongs strictly on paper or in a formal email.

English business culture values time and clarity. We often skip the "How are you?" in official letters to save time. This phrase comes from a long history of paper filing systems. Clerks needed to know the topic immediately to put the letter in the right folder. Even in our digital age, that need for instant categorization remains. It signals that the writer respects the reader's busy schedule.

You might see This email concerns in modern offices. Another common version is I am writing regarding. Some people prefer In reference to your inquiry. If you want to be even shorter, you can just use Re: at the top. However, This letter concerns remains the gold standard for a polite, formal opening. It feels more like a complete thought than just a subject line.