Registration Agency ISBN:

Registration Agencies:

ISBN Services for Publishers

Purchase your ISBNs online, its quick and easy using the ISBN Store:

The UK ISBN Agency provides the following services for new publishers:

  • Provision of advice concerning the ISBN system
  • Allocation of ISBN publisher prefixes and numbers to eligible publishers and self-published authors based in the UK or Republic of Ireland
  • Registration of new publishers and their ISBN prefixes (and self-published authors) for inclusion in the Publishers International ISBN Directory and the Nielsen Book’s Publisher Database.

Completed Application Forms

Completed application forms for ISBN prefixes and numbers should be completed and emailed to the agency. ISBN allocations are issued to you by email unless you request them to be posted.

The standard processing time for an ISBN application via the form is 5 working days from receipt of the application form; this assumes the application form is legible, fully and correctly completed, and is accompanied by the correct fee. Payment can be made via Visa / MasterCard or cheque. 

For an additional fee, applications can be "fast-tracked", in which case the processing time is reduced to next working day. 

Download an application form and guidance notes by clicking on the links below; completed forms should be scanned and emailed to, faxed to +44 (0)1483 712 214 or posted to the address on the form: 

ISBN Application Form & Prices
- this form is now editable using Adobe Reader

ISBN Application Guidance Notes

Important Notes for Publishers

Nielsen BookNet Online Order Collection service,  to find our more about how you can receive your book orders online if your self-distribute

If you have any difficulty using the form, the agency can be contacted via the above email address or by telephone on +44 (0)1483 712 215.

Please Note: Any payment which fails to be honoured by your bank may lead to the cancellation of your ISBN prefix allocation and deletion of any associated publications already registered on Nielsen Book's bibliographic database.

For further information on our services for publishers:Nielsen Services for Independent Publishers