Introduction — apply for ISBN in Nigeria

This guide explains how to apply for ISBN in Nigeria through the National Library of Nigeria (NLN). You will learn what documents are required, a practical step-by-step application flow, timing and fee considerations, common mistakes to avoid, and a short checklist to prepare your submission.

Who issues ISBNs in Nigeria?

The National Library of Nigeria (NLN) is the official and only agency authorised to issue Nigerian ISBNs. All ISBN applications for Nigerian imprints are processed through NLN’s online portal.

Before you start: what to prepare

Gather these essentials so the portal registration and application go smoothly:

  • Decide the publisher imprint (your personal name, an imprint, or a registered company). NLN treats the publisher as responsible for legal deposit.
  • A clean scanned ID (acceptable: National ID/NIN, driver’s licence, international passport, voter card).
  • If registering a company: Certificate of Incorporation (CAC) to upload on the corporate signup.
  • Book metadata and preliminary pages: title, subtitle, edition, format (paperback/hardcover/ebook/audiobook), place of publication (city), language, page count, price, and a cover or preliminary PDF if you plan to apply for Cataloguing‑in‑Publication (CIP).

Step-by-step: How to Apply for ISBN in Nigeria

  1. Open an account on NLN’s ISBN portal (https://isbn.nln.gov.ng). Choose Author/Publisher or Corporate Publisher depending on your status and upload the required ID or CAC document.
  2. Log in and complete the publisher profile with full name, address, phone, email and other requested fields.
  3. Start a new ISBN application and enter the book metadata precisely: title, author, edition, format, place of publication (city), publication date, pages, binding and price. Attach any requested files.
  4. Confirm payment instructions inside your portal account. NLN’s public pages do not publish a definitive fee table, so check the payment steps shown after login or contact NLN directly if the portal does not show fees.
  5. Submit the application. NLN will process the request and — when ready — assign an ISBN and issue confirmation or certificate through the portal or by email.
  6. After receiving the ISBN, place the number on the verso (reverse) of the title page and on the back cover, and generate a Bookland EAN‑13 barcode for printing. If you want CIP data for a forthcoming Nigerian publication, apply for CIP and send the preliminary pages.
  7. Deposit the legally required copies with NLN after publication (private publishers: 3 copies; state governments and federal have larger counts). Keep proof of deposit.

Sign up and application forms are on the NLN ISBN portal: https://isbn.nln.gov.ng. The portal pages show the registration forms and the ISBN application interface.

Fees and timing — what to expect

Published 2026-10-10: NLN does not publish a clear public fee schedule for ISBNs on their main site or visible portal pages. That means you must confirm fees and payment steps inside your portal after signup or by contacting NLN directly.

Source What it says Notes / action
NLN official page No public price table; contact details and portal link provided. Confirm fees in your portal or call/email NLN: info@nln.gov.ng / +234 805 425 5169.
Independent author guides (2024–2026) Report small fees (examples: N3,000–N5,000 per ISBN; blocks sometimes quoted N15,000–N25,000). These are anecdotal. Treat as indicative only — verify with NLN before paying or publishing price lists.

Processing time: NLN publishes CIP timing (CIP data often produced within about 10 working days after receiving materials). NLN does not publish a fixed ISBN assignment SLA on its public pages; third‑party reports suggest a range from a few days to several weeks depending on completeness and workload. Ask NLN for an estimate when you submit.

Practical tips and common mistakes

  • One ISBN per edition/format: Each distinct edition and medium needs its own ISBN (paperback, hardcover, ebook, audiobook). Do not reuse an ISBN across formats.
  • Don’t rely on a printer/platform ISBN: ISBNs supplied by platforms (e.g., some printer or retailer services) may be registered to that platform’s imprint. If you want long‑term control and clear national bibliographic data, obtain the ISBN from NLN.
  • Double‑check metadata: Mistyped numbers, wrong edition or wrong publisher name printed in the book are hard and costly to fix once printed.
  • Deposit the required copies: NLN requires legal deposit (private publishers: 3 copies). Keep proof of deposit to meet statutory obligations.
  • Beware third‑party sellers: NLN is the only authorised ISBN issuer in Nigeria; avoid intermediaries selling ISBNs outside the NLN portal.

Short checklist before you apply

  1. Decide publisher imprint and prepare CAC Certificate if company.
  2. Scan valid ID (NIN, passport, driver’s licence, voter card).
  3. Prepare book metadata and preliminary PDF/pages for CIP if needed.
  4. Create account at isbn.nln.gov.ng and complete registration.
  5. Confirm payment instructions in the portal or contact NLN to clarify fees.
  6. Submit application and await ISBN assignment; then print ISBN and barcode and deposit copies after publication.

Where to get help and official references

Use the NLN resources for authoritative guidance and contact them if anything in the portal is unclear:

FAQ

How long does it take to get an ISBN?

NLN does not publish a fixed public SLA for ISBN assignment. CIP data is typically produced within about 10 working days after receipt of materials. Independent reports show ISBN assignments can take from days to a few weeks. Ask NLN for an estimate when you submit.

How much does an ISBN cost in Nigeria?

As of 2026-10-10 NLN does not publish a public fee table. Third‑party reports indicate small fees (examples: a few thousand naira per ISBN), but these are anecdotal. Verify current fees in your portal account or by contacting NLN at info@nln.gov.ng or +234 805 425 5169.

Do I need an ISBN for an ebook?

Yes. Each format (ebook, paperback, hardcover, audiobook) requires a separate ISBN, so obtain one for each format you will sell or distribute.

Can someone else apply an ISBN for my book?

Yes, a publisher or authorised agent can apply, but NLN records the publisher/imprint and the registered account. Be careful about ownership and legal deposit responsibilities.

Conclusion

Applying for an ISBN in Nigeria is done through the NLN online portal. Prepare your ID/CAC, book metadata and preliminary pages, register at isbn.nln.gov.ng, complete the application, confirm payment inside the portal, and submit. After assignment, print the ISBN and barcode and fulfill the legal deposit requirement. Because NLN’s public pages do not publish a clear fee table or an ISBN processing SLA (checked 2026-10-10), always confirm fees and timing in your portal or by contacting the NLN directly.

Published 2026-10-10 — confirm all fees, deadlines and processing times with NLN before paying or printing.