National Merit does not use your PSAT total. It uses a Selection Index, a separate number that sits on your score report and weighs your two sections differently. This article explains how that number is worked out, who can enter the National Merit Scholarship Program with it, and what happens to the entrants who score highest.
This was checked in October 2026 against the National Merit Scholarship Corporation (NMSC) and College Board. The figures below belong to the 2026 PSAT/NMSQT, which feeds the 2028 National Merit program.
What is the Selection Index?
The NMSC Selection Index is the score NMSC uses to screen entrants. NMSC says it uses Selection Index scores as an initial screen of over 1.2 million program entrants. Your total score is not what gets compared.
College Board says the PSAT/NMSQT total score runs from 320 to 1520, each of the two section scores (Reading and Writing, and Math) runs from 160 to 760, and the Selection Index appears on your score report on a scale of 48 to 228.
How is the Selection Index calculated?
NMSC states the formula on its program recognition page: double the Reading and Writing section score, add the Math section score, and divide the total by ten.
Selection Index = (2 x Reading and Writing + Math) / 10
Here are three made-up score reports, written for this article, to show what the weighting does:
| Reading and Writing | Math | Total | Selection Index |
|---|---|---|---|
| 600 | 580 | 1180 | 178 |
| 560 | 640 | 1200 | 176 |
| 640 | 560 | 1200 | 184 |
The second and third rows have the same total, 1200, and different Selection Index scores. The only difference is which section carries the higher score. Reading and Writing counts twice in the formula, so the same points there move your Index further.
The lowest possible Index follows from the formula: 2 x 160 + 160 = 480, divided by ten, is 48. The highest is 2 x 760 + 760 = 2280, divided by ten, is 228. Those match the 48 to 228 scale College Board prints.
Who can enter the National Merit Scholarship Program?
NMSC's entry requirements page lists what a student needs for the 2028 program. A student must:
- be enrolled as a high school student (traditional or homeschooled), progressing normally toward graduation or completion of high school by 2028, and planning to accept admission to college no later than the fall of 2028;
- attend high school in the United States, the District of Columbia or a U.S. commonwealth or territory, or meet the citizenship requirements for students attending high school outside the United States;
- take the 2026 PSAT/NMSQT in the specified year of the high school program and no later than the third year in grades 9 through 12, regardless of grade classification or educational pattern.
NMSC states that the PSAT 10 and PSAT 8/9 are not considered for entry. Your score report has an NMSC section that shows your answers to the entry questions and whether your Selection Index will be considered. If it shows something wrong, NMSC says you can update your responses with the online form on its site, and that all requests to update records for the 2028 program must be submitted no later than October 15, 2027.
What are the stages after the Selection Index?
NMSC describes the stages this way for the 2028 program:
- Screen. The Selection Index scores of all entrants are considered. In spring 2027, NMSC asks high school principals to identify errors or changes in the reported eligibility of high scorers.
- Commended Students. In September 2027, NMSC says about 34,000 high scorers will be named Commended Students, on the basis of a nationally applied qualifying score that may vary from year to year. They receive Letters of Commendation but do not continue in the competition for National Merit Scholarships.
- Semifinalists. NMSC says more than 16,000 high scorers will qualify as Semifinalists, and only Semifinalists can advance for Merit Scholarship awards.
- Finalists. NMSC says about 95 percent of Semifinalists are expected to become Finalists, and receive a Certificate of Merit. A Semifinalist must keep meeting the entry requirements, be enrolled in the last year of high school, be endorsed and recommended by the principal, have a record of consistently very high academic performance in grades 9 through 12, complete the scholarship application including an essay, and take the SAT or ACT with scores that confirm the PSAT/NMSQT performance.
Why is there no single cutoff to aim for?
NMSC explains that Semifinalists are designated on a state-representational basis. It sets an allocation for each state from that state's share of the national total of graduating seniors, then arranges the Selection Index scores within the state in descending order. The score at which the state's allocation is most closely filled becomes that state's Semifinalist qualifying score.
NMSC states that, as a result, Semifinalist qualifying scores vary from state to state and from year to year. This article gives no cutoff for that reason. Look up the current figures with NMSC, and treat any number from a forum or a prep site as unofficial until NMSC publishes it.
What should you do with this?
Use the formula to read your report the right way round. If your Index is lower than you expected, check which section pulled it down. Reading and Writing carries double weight, so the skills breakdown for that section is the first place to look.
If you are a junior who sat the PSAT/NMSQT this fall, check the NMSC section of your score report for the entry questions. If you sat it earlier in high school, NMSC's rule is that the test must be taken in the specified year of the program, so read the entry requirements page before you assume you are in.
Exam dates, fees and rules change. Confirm the current details with the official exam body before you act on them.
Sources
- Entry Requirements, National Merit Scholarship Corporation
- Program Recognition, National Merit Scholarship Corporation
- What Do My SAT Suite Scores Mean?, College Board
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