Who makes the decision, and on what
A desk rejection — sometimes called an editorial rejection or a rejection without review — is made by a handling editor or the editor-in-chief before any reviewer sees the manuscript. It typically arrives within days rather than months.
The editor is answering a narrow question: is this paper plausibly publishable in this journal, and is it worth asking two or three busy specialists to spend hours on it? That is a screening judgement about fit and readiness, not a verdict on whether the research is any good.
This is why desk rejections feel abrupt. The letter is often three sentences and rarely explains much. It is not a review, and it was never meant to read like one.
A desk rejection is a screening decision about fit and readiness — not an assessment of whether your research is sound.
The common triggers
Scope is the most frequent. The paper is competent but belongs in a different journal, and the editor knows their readership will not engage with it. This is entirely avoidable and is a journal-selection problem, not a writing one.
Presentation is the second. If the abstract does not make the contribution legible in a few sentences, or the manuscript ignores the journal's formatting and structure requirements, an editor may reasonably infer the paper was sent out without much care.
Then there is novelty framing — the work may be new, but the manuscript never says what is new about it. And there are hard blockers: ethics documentation missing where it is required, data unavailable where the journal mandates a statement, or a similarity report that raises questions before anything else is read.
What to do in the first week
Read the letter for the specific reason. "Not a good fit for our readership" and "does not meet our threshold for novelty" are different signals leading to different actions. The first says find another journal; the second says the framing or the contribution itself needs work.
Resist the urge to submit to the next journal on the list the same day. A desk rejection on scope grounds costs you a few weeks; the same paper desk-rejected four times in a row costs months and tells you the targeting was wrong from the start.
Then do the unglamorous work: check the paper against the new journal's actual author guidelines, rewrite the abstract so the contribution is unmissable in the first three sentences, and make sure the cover letter says explicitly why this paper belongs in this journal.