PLOS ONE Acceptance Rate: What 31% Actually Means for Your Submission

PLOS ONE's acceptance rate is 31%. A decade ago it was 68%. If you saw that drop and concluded the journal became harder to publish in, you'd be wrong about what's driving it, and that misread affects how you approach your submission.

A Brief History: From 68% to 31%

When PLOS ONE launched in 2006, it was a genuinely novel concept: a peer-reviewed journal that evaluated scientific soundness, not significance. The idea was that science needed a venue for rigorous work that wasn't going to get into Nature or Cell, because the finding wasn't flashy enough, not because the methods were bad.

In the early years, the submission pool was small and self-selected. Authors who submitted to PLOS ONE mostly understood what the journal was for and sent appropriate work. The acceptance rate was high because the mismatch rate was low.

Then PLOS ONE became the largest open-access journal in the world. Submission volume exploded. And the composition of that submission pool changed in ways that dragged the acceptance rate down.

Here's what changed:

By around 2012-2015, PLOS ONE became the go-to destination for papers that had been rejected from higher-tier journals. A paper rejected from Nature for "lack of novelty" often landed at PLOS ONE next. But "rejected from Nature for lack of novelty" doesn't always mean "methodologically sound." Sometimes a paper gets rejected from Nature because it's incremental AND has methods problems. PLOS ONE still rejects those.

At the same time, authors submitting to PLOS ONE for the first time, without reading the scope carefully, started arriving in volume. Papers outside PLOS ONE's 200+ subject areas, opinion pieces without original data, and papers with missing ethics statements all get desk-rejected. More authors submitting poorly matched submissions means more rejections.

The acceptance rate dropped not because the editors raised the bar, but because the submission pool got bigger and more heterogeneous.

What the Soundness-Only Policy Actually Means

This is the most important thing to understand about PLOS ONE, and the most frequently misunderstood.

What reviewers are NOT asked:

• Is this finding novel?
• Is this likely to influence the field?
• Is this worth publishing in a journal with broad readership?
• Would I cite this?

What reviewers ARE asked:

• Are the methods appropriate for the research question?
• Is the sample size justifiable?
• Do the conclusions follow from the data, without overclaiming?
• Is the data available for verification?
• Were appropriate ethical approvals obtained?
• Are the statistical analyses correct?

That last item is where a lot of papers fail. PLOS ONE reviewers catch statistical errors, and they're thorough about it. Wrong test for the data type, missing correction for multiple comparisons, effect sizes reported without confidence intervals, overpowered conclusions from underpowered samples. These get flagged and often lead to rejection.

The soundness-only policy doesn't mean "lower bar." It means a different bar. A paper with impeccable methods and a boring result passes. A paper with an exciting result but inadequate controls fails.

Who Submits to PLOS ONE (And Why This Matters)

To interpret the 31% rate correctly, you need to think about the submission pool.

PLOS ONE covers more than 200 subject areas. It's the largest open-access journal by volume. Its APC of $2,290 is one of the lowest among fully indexed open-access journals in its tier. It accepts work from every country, at every career stage, in every scientific field.

The result is a massively diverse submission pool that includes:

• Established researchers submitting rigorous work that fits the soundness-first model
• Early-career researchers submitting their first papers, often without knowing what PLOS ONE actually evaluates
• Papers cascading down from higher-tier journals after rejection
• Papers from fields where PLOS ONE is the standard open-access venue (some public health areas, for example)
• Papers submitted primarily to meet an open-access mandate at the cheapest qualifying venue

A journal that accepts submissions from every corner of science, at every quality level, is going to have a lower acceptance rate than a specialist journal with a self-selecting author pool. The 31% reflects the breadth of that pool more than it reflects the journal's strictness.

The 42-Day Timeline

PLOS ONE's median time to first decision is 42 days. That's genuinely fast for a fully indexed journal with rigorous peer review.

Academic Editors are independent volunteer faculty, which means they handle your paper as a service to the scientific community, not as a day job. They select reviewers from within their area of expertise, and the review process is double-blind.

The 42-day median masks some variation. Papers in well-staffed fields with accessible reviewers can get decided in under 30 days. Papers in specialized or interdisciplinary areas sometimes wait 60-90 days when finding qualified reviewers takes longer.

For the full breakdown of what affects your timeline, see the PLOS ONE review time guide.

What the 31% Actually Means for Your Submission

Here's the practical takeaway.

If your paper has solid methods, a research question appropriate for empirical investigation, conclusions that match your data, and proper ethics documentation, your submission is competing in a subset of that 31% pool, not the whole thing. Papers rejected for missing ethics statements, out-of-scope submissions, and obvious methods failures don't really represent your competition.

PLOS ONE is the right target if:

• Your methods are rigorous but your finding isn't a landmark discovery
• You have null results, negative findings, or a replication study that the scientific record needs
• Open access is required by your funder, and cost matters ($2,290 is competitive in this tier)
• Your paper was rejected from a higher-tier journal for "lack of novelty" with no criticism of your methods
• You want the 42-day median review time

Be realistic about PLOS ONE if:

• Your paper has methods problems. Fixing those first is more important than choosing a journal.
• Your data isn't ready to share publicly. PLOS ONE's data availability requirements are strict. "Available upon request" isn't acceptable.
• Your institution's promotion criteria heavily weight impact factor. A 2.6 JCR IF looks different from a CiteScore of 5.9 (which uses a 4-year window), and hiring committees often only look at the JCR number.

What PLOS ONE's Rate Tells You About Open-Access Publishing More Broadly

PLOS ONE was designed to push back against the impact-factor model of publication. The founding idea was that science needs a record of rigorous work, not just exciting work. From that perspective, a 31% acceptance rate with a soundness-only filter is doing exactly what it should do.

The acceptance rate fell from 68% to 31% not because PLOS ONE failed its mission, but because more people are now submitting work that doesn't meet the soundness standard. That's a story about what happens when a high-volume open-access venue becomes the default, not a story about the journal becoming harder to get into.

For your specific submission, the relevant question is simple: is your methodology sound, are your conclusions supported by your data, and is your data available? If yes to all three, your odds at PLOS ONE are better than the headline number suggests.

For the full submission process including what the editors actually check and how to write a PLOS ONE-ready data availability statement, see the PLOS ONE submission process guide.

Sources and Further Reading

• PLOS ONE editorial and peer review process: plos.org/plos-one
• PLOS ONE reporting guidelines and publishing criteria: journals.plos.org/plosone/s/criteria-for-publication
• PLOS ONE journal overview
• PLOS ONE review time: what to expect
• PLOS ONE submission process guide

How to Interpret a PLOS ONE Rejection

PLOS ONE rejects around 50% of submissions. The rejection reasons differ from high-IF journals. PLOS ONE doesn't reject papers for lack of novelty or significance , it rejects papers with methodological problems, incomplete data reporting, or ethical issues.

If your PLOS ONE submission is rejected, the reason will almost always point to a specific methods, data, or reporting problem. Fix that problem before resubmitting , either to PLOS ONE on appeal or to a comparable journal. Submitting the same paper with the same methodological gaps to a different journal doesn't solve the underlying issue.

PLOS ONE's Role in Reproducibility

PLOS ONE has been at the forefront of open science practices. The journal requires data availability statements, recommends pre-registration for clinical and behavioral studies, and was one of the first journals to adopt mandatory data sharing requirements.

For authors submitting to PLOS ONE, this means your methods section and data availability statement need to be thorough. Reviewers at PLOS ONE check these sections carefully. A methods section that omits details that would allow replication is a common reason for revision requests , even when the scientific conclusions are sound.

The Bottom Line

PLOS ONE's 45-50% acceptance rate reflects a methodology-first editorial bar, not a lowered standard. The papers that don't make it fail on methods reporting, data quality, or scope mismatch , not because PLOS ONE is chasing prestige. If your study is clean and reproducible, it belongs there.

See also

• PLOS ONE Impact Factor 2026: 2.6
• PLOS ONE Submission Process
• Scientific Reports vs PLOS ONE