Authorize Someone to Act on Your Behalf — Properly

How to Write an Authorization Letter

An authorization letter lets someone else act for you — collect a document, access an account, pick up a record, or stand in your place — when a third party won't take an instruction from anyone but you without written permission. Because it transfers real authority, its value is in being precise: who you are, exactly who you're authorizing, precisely what they may do, and exactly when the authority ends. This guide uses a worked example — a managing principal authorizing an agent to collect bank documents on her behalf — laid out with an engraved centered masthead, a grant table, and a notary attestation block.

Head It Like an Official Instrument

An authorization letter is more likely to be honored if it reads as formal. Center your name or firm at the top, add an address line, and stamp a document reference and date. A subject line — "Letter of Authorization" with a one-line description of what it authorizes — tells the recipient immediately what they're holding before they read a word of the body.

Identify Everyone, With Something Verifiable

Name yourself as the person granting authority, and name the authorized agent with an identifier the recipient can check against ID — a driver's-license or passport number. If an account or matter is involved, reference it (a masked account number is fine). The recipient's whole job is to confirm the person standing in front of them matches the letter, so give them the means to do it.

Pin Down the Scope in a Table

The grant table is the safety mechanism of the whole letter. Pull these facts out of the prose so they can't be misread:

• Account holder — who is granting the authority
• Account or matter — what it applies to
• Authorized agent — name and verifiable ID number
• Scope — the single, specific thing they may do
• Valid — the start and end dates of the authority

Limit the Authority Explicitly

State not just what the agent may do but what they may not. "This authorization is limited strictly to the collection of documents and confers no authority to transact, withdraw, or otherwise direct the account" is the kind of bounding sentence that keeps your letter from being read as a general power. Then state that the letter is void after the end date. A narrow, dated authorization is a feature, not a limitation.

Sign It — and Notarize If Required

Close with your signature, title, and organization. Many recipients — banks, title companies, government offices — require the letter to be signed in front of a notary so they can be sure it's genuinely you. The showcase carries a notary attestation block with signature lines and a seal area for exactly that. Check the recipient's requirements before you sign, because whether notarization is needed depends on what you're authorizing and who's receiving it.

Common Mistakes to Avoid

Don't leave the scope vague, don't omit an end date, and don't authorize "any and all" matters when you mean one specific thing. Note too that an authorization letter is a private grant of permission, not a court order — if you need a notary or a specific form, confirm the recipient's rules for your situation rather than assuming this draft satisfies them.

If the matter you're authorizing relates to a property purchase or business deal, you may also need to put your terms in writing first — a letter of intent sets out the deal before anyone acts on it.