Guides · 6 min read
What Is an APC (Article Processing Charge)? Open-Access Fees Explained
An Article Processing Charge (APC)is a fee some journals charge the author (or their institution/funder) to publish an article open access — freely readable by anyone, with no paywall. It shifts the cost from readers to the publishing side. Crucially, paying an APC is normal and legitimate; the fee alone says nothing about a journal's quality.
How much is an APC?
It varies enormously. The global average per-journal APC has been estimated around US$1,626, but real fees run from under $100 to well over $5,000 — and the most prestigious titles go higher still (Nature's open-access option has been priced around €9,500) (Wikipedia — Article processing charge ↗). Price tracks prestige, publisher and discipline far more than it tracks quality.
The open-access models
- Diamond (platinum) OA — no APC at all; free to publish and free to read, usually funded by institutions or societies.
- Gold OA — the article is open immediately on the publisher's site, funded by an APC.
- Green OA — you publish anywhere, then self-archive the accepted manuscript in a repository. No APC, though an embargo may apply.
- Hybrid OA — a subscription journal that lets you pay to make a single article open; APCs here average roughly double those of fully open journals.
“Open access” does not automatically mean “you pay.” In fact, an estimated 60% of journals in the Directory of Open Access Journals ↗ charge no APC, and diamond OA journals publish a large share of all open-access articles.
An APC is not a predatory-journal signal
Reputable open-access journals — including many indexed in Scopus, Web of Science and DOAJ — charge APCs. What matters is transparency: a legitimate journal states its fee clearly up front, before you submit. The warning sign is a hidden or surprise charge, or a fee attached to a journal that fails the other checks (see our predatory-journal checklist).
Finding waivers and discounts
- Many publishers offer full or partial waivers for authors from low- and middle-income countries, or in cases of hardship — though this isn't universal.
- Your institution or funder may have a “transformative agreement” that covers APCs for its authors.
- Choosing a diamond OA journal in your field avoids the fee entirely.
PubScope brings the public signals together for tens of thousands of journals: Web of Science / Scopus / DOAJ indexing, SJR quartile, APC, a 0–100 Trust Score and predatory-risk flags — each linking out so you can confirm it at the source.