How to make a simple letter of authorization

Updated April 04, 2017

Authorisation letters grant an individual the privilege or ability to undertake some task or access to possessions owned by another person. This type of letter is often used to get ahold of medical and employee records. The letter of authorisation is the legal authority that gives an individual access to such resources and defines the privileges and parameters extended to that person. You can make a simple letter of authorisation. Upon completion of your authorisation letter, have a witness and notary present to sign and verify that neither party is under duress.

Determine the type of authorisation letter that's desired. Is the letter intended to convey authority for another person to act in a position on a temporary basis while a person is ill? Perhaps the authorisation is being given to allow access to numerous files and other company resources.

Secure the address and name of the person in receipt of the letter of authorisation. Only the person named in the text of the letter has the permission to implement the outlined provisions.

Write the first paragraph in the body of the letter. Write a general description of the types of abilities or resources being granted in the letter of authorisation. Use a bullet-point formatted list to keep the information organised and simple to understand. Include a sentence that allows for privileges to be extended as needed.

Write the next couple paragraphs of your authorisation letter. Specify the scope or range of the authority being given. Include any auxiliary authorisation that may not be related or apparent to the main purpose at the time you draft the letter. For instance, a letter of authorisation may allow someone to pull additional medical records if the issuer is diagnosed with a new medical condition.

Write the final paragraph of the letter of authorisation. Specify the date range for the authorisation period. If the authorisation period is indefinite, only include a starting date and a statement that the letter remains in effect until further notice is made.

Close the letter by stating the position/relationship the granter holds that allows such authorisation be given to another person. This can be as simple as including a job title such as president/CEO or a relationship status such as mother/sister. This serves as proof that the letter does indeed extend privileges and rights to the recipient.


A simple letter of authorisation is generally no more than two pages.


Avoid using vague terms and language for this could lead to legal problems in the future. Consult with an attorney, if needed.

Things You'll Need

  • Computer
  • Printer
  • Pen
  • Witness
  • Notary Public
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About the Author

Mary Corbin began her career writing for online and print media in Indianapolis. Since 2004, she has covered subjects such as home and family, technology and legal issues. Working in the broadcast industry, Corbin created articles for marketing, public relations and business matters. She graduated with a bachelor’s degree in journalism from Indiana University.