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Short answers

Is the NMLS exam open book?

Compiled by the Sitonce editorial team from the NMLS Resource Center and the federal regulations named belowUpdated 2 min readFacts verified 4 September 2026
The short answer

No. It is closed book. Nothing goes into the testing room, everything is stored in a locker, and the only tool provided is an on-screen calculator.

No. Closed book, and strictly so.

No notes, no regulations, no printouts, no phone. Everything you arrived with goes into a locker before you are checked in.

What you do get

An on-screen calculator, and whatever scratch material the center's own rules allow. That is the complete list.

Online proctored sittings work the same way, with the room inspected on camera before you begin.

Why this is worth knowing early

Because it changes what preparation means.

A contractor licensing exam is often open book, and preparing for one is largely about tabbing your references and practicing lookups. Preparing for this exam is about recall, and the difference is not marginal.

  • Every timeframe has to be memorized, not looked up
  • Every calculation has to be done from a formula you already know
  • Every threshold - tolerance, HOEPA, points and fees - comes from memory
  • There is no book to fall back on when a question is unfamiliar
Which is why the formula sheet is a study tool, not an exam tool

Write one out. Use it while practicing. Then rebuild it from memory on a blank sheet until it comes out complete, because that blank-sheet version is the one that goes in with you.

The one thing you can carry in

Whatever you can write down in the first minute after the clock starts, if the center permits scratch material.

A brain dump of the ratio formulas and the TRID timeline takes under a minute and turns four recall problems into four lookups. It is the closest this exam gets to open book.

Common questions

Is the NMLS exam open book?

No. It is closed book and nothing may be brought into the testing room.

Can you use a calculator on the NMLS exam?

Yes, an on-screen calculator is provided. You cannot bring your own.

Can you take notes in?

No. Everything is stored in a locker, including phones and printed material.

Do you get scratch paper?

The center provides whatever its own rules allow. Use the first minute to write down formulas and timeframes if it does.

Is the online proctored version open book?

No. The room is inspected on camera before you start and the same rules apply.