How to Apply

Seven Easy Steps to Apply to Millbrook School

1 Complete our online inquiry form.

Schedule your campus tour and interview with the admission team
Millbrook is currently offering on-campus tours for prospective students. We will regularly monitor local and national health and safety guidelines and will share community protocols with visitors when the appointment is booked and send a reminder in the days prior to the visit. A campus tour is not required for the application process, but it is strongly recommended for all prospective students. Millbrook will also offer personalized virtual tours for families who are unable to visit campus in person. To learn more and book your appointments please click here or email

Campus tours are offered during academic days: 
Mondays, Thursdays & Fridays at 10:15, 12:15, and 2:05
Tuesdays at 12:20 and 2:05
Wednesdays at 10:15 and 11:30
Saturdays at 9:00,10:00, and 11:15
Small group virtual tours are available on Wednesdays at 7:00 pm (ET) and individual tours can be scheduled upon request. 

*Please note that the availability and format of campus visits are subject to change based on local health and safety guidelines. As of spring 2022, we are a mask-optional campus. The admission team will do our best to communicate updates in a timely manner. We appreciate your understanding and collaboration.

Consider Standardized Testing Options
Millbrook School will be test-optional for students applying for admission for the 2022-2023 school year. If you choose to submit a test score, please register to take the SSAT (Secondary School Admission Test) through the SSAT website or by phone (609-683-4440). Millbrook's SSAT code is 5092. Millbrook also accepts the ISEE (Independent School Entrance Exam), PSAT, PreACT, SAT, and ACT. Millbrook may accept standardized test scores taken in previous school years. Please speak with the admission team about previous-year scores during the interview process.

Schedule a language-proficiency test if English is not your first language.
Millbrook School does not offer ESL courses and requires that students, for whom English is not their first language, submit an English-proficiency test as a part of their application. Students can submit a TOEFL (Test of English as a Foreign Language), IELTS, or DuoLingo test as a part of their application. Millbrook's TOEFL code is 0851. Please contact the Admission Office at if you have questions or difficulty completing this portion of the application.

4 Complete the Application
Millbrook will accept either the SSAT Standard Application Online or the Gateway Application Online. The application deadline is January 15.

Ask for References Early (but not before October 30)
Millbrook requires recommendations from your math teacher, English teacher, and guidance counselor/advisor/head of school/principal. You can access the recommendation forms through either the SSAT Standard Application Online or the Gateway To Prep Schools online applications. Additional references are always welcome, but not required.  

Complete the Financial Aid Application
If you are applying for financial aid, please notify the admission office during the interview process and review the instructions for that process here. Completion of the Parents’ Financial Statement (click here) and submission of current year tax information are requirements of the process. Financial aid applications are due by January 31.

7 Notifications
To be considered for an admission decision on March 10 (the common notification date for boarding schools), all components of the application must be received by January 15. All prospective students and their parents will be able to track the progress of their application and receive decision updates through the Millbrook Portal. Once you submit your application, Millbrook will email you with your Millbrook Portal username and a temporary password. Please regularly check the email accounts that you provided to our admission office and your Millbrook Portal to learn about upcoming events, receive official notes from the admission office, and check the progress of your application. Please contact Wendy Greenfield ( if you have any questions about your Millbrook portal account. Decisions will be posted to your Millbrook portal and will also be mailed on March 10. Families must confirm their intention to enroll by April 10th with a signed contract and enrollment deposit. Admitted students will have the opportunity to return to campus for accepted students programs in early April. 

After January 15, Millbrook will accept applications on a rolling basis throughout the spring, subject to availability. If you wish to submit an application outside of the regular timeline, please contact the admission office directly,

Visiting Campus

Millbrook is welcoming visitors to campus. Our visitor policy is designed to guide all visitors outside of current Millbrook families and employees. Our policies are subject to change based on local and national public health recommendations. We will do our best to communicate changes promptly with you. 

Our current policy is that we are a mask-optional campus. Masking is welcomed but not required.

We do ask that visitors to campus complete our Health Screening form: CLICK HERE to view and submit.

DuoLingo English Test

Millbrook will now be accepting the DuoLingo English test as part of the application process.

That test can be found here.

Contact Info


Admission Office
Millbrook School
131 Millbrook School Rd.
Millbrook, NY 12545