Closed access

Closed access restricts a reader’s access to content — commonly a journal article, book chapter, or dataset — behind a paid subscription. It is often called a “paywall.” A reader without an individual or institutional subscription cannot read or download the work, regardless of whether they could otherwise discover it, or its metadata, through a search or citation index.

Closed access vs. open access

Closed access sits at the opposite end of the access spectrum from open access. Where open access removes price and most permission barriers, closed access preserves both: a reader must pay (directly, or through an institutional subscription paid on their behalf) before they can retrieve the work at all. This differs from an embargo, which is a temporary restriction that lifts on a defined date — closed access, by definition, has no such built-in expiry; it persists for as long as the rights holder maintains the subscription requirement.

Why closed access is a knowledge-equity concern

Because closed access ties readership to institutional purchasing power, it disproportionately limits access for researchers, students, and the public at institutions — particularly in lower-income countries and at under-resourced institutions generally — that cannot afford comprehensive journal subscriptions. This is a central argument behind funder open access mandates (see Plan S and open access mandate): publicly funded research findings should not require a further payment before the public, or other researchers, can read them. Directories such as DOAJ are commonly used to check whether a specific journal’s content is open or closed before submission.

Routes around closed access

Authors publishing in a closed-access journal can often still make a version of their work openly available through deposit in an institutional repository or subject repository — commonly called self-archiving or green open access — subject to whatever embargo period and document version restrictions the publisher’s self-archiving policy allows. See CASRAI’s guide on checking a journal’s self-archiving policy with Open Policy Finder for how to look this up for a specific journal.

Worked example

A reader without a subscription who tries to download an article from a closed-access subscription journal is shown an abstract and a paywall prompting payment or institutional sign-in before the full text becomes available.

Counter-example

An article published under a green open access route may originate in a closed-access subscription journal, yet still be freely readable in full via the author’s self-archived copy in a repository — the journal-of-record version is closed access, while a parallel, permitted copy is open.

Frequently Asked Questions

Is closed access the same as an embargo?

No. An embargo is a temporary restriction with a defined end date, after which the work becomes open. Closed access has no built-in expiry — it persists as long as the paywall or subscription requirement remains in place.

Can a closed-access article still be legally shared?

Sometimes, through routes the publisher explicitly permits — most commonly self-archiving an accepted or submitted version in a repository under the journal’s stated self-archiving policy, or sharing via a publisher-provided read-only link. Sharing the publisher’s own version of record outside those permitted routes typically breaches the publishing agreement the author signed.

Why is closed access described as a knowledge-equity issue?

Because it ties readership to institutional purchasing power, closed access limits who can read publicly funded research findings to those affiliated with subscribing institutions — a central rationale behind funder open access mandates.