The rule is simple. When you write about a degree in general terms, use lowercase: “I have a master’s degree in psychology.” When you name a specific degree, capitalize it in title case: “She earned a Master of Arts.” The same pattern applies to bachelor’s and associate’s degrees. Write “bachelor’s degree” in general, but “Bachelor of Science” for the specific award.
The apostrophe in “master’s” marks possession, not a plural. Writing “masters degree” without the apostrophe is a common error in applications and resumes, and sloppy spelling can make a bad impression on employers and admissions committees. Good professional resume writing starts with getting these details right.
Stay consistent throughout your documents. If you capitalize the degree name once, do it everywhere. For more help presenting your credentials, see tips for writing an effective resume and cover letter and how to write a master’s degree candidate resume.

