| GENERAL INFORMATION | |
| Publisher | IOP Publishing |
| Agreement ID | iop2026tib |
| Agreement labeling | IOP Transformative Agreement |
| Is the agreement document publicly available? | Yes |
| URL | https://tib.cloud/s/2fQFCrKSZ5fNJZz |
| Agreement period | 1/1/2026 – 12/31/2028 |
| Consortia / Institution | TIB Consortium |
| Country | Germany |
| COST | |
| How do the costs of the agreement relate to the previous agreement with the publisher? | Cost increase |
| Comments on cost development | On the consortial level costs slightly increase year on year (inflation adjustment + projected increase in Gold OA articles). On the institutional (member) level, fees shift according to the agreed corridor/change caps (from −3% to +10% over previous year’s fee). |
| Describe how the cost model has changed from the previous agreement (e.g., move from subscription to R&P / from capped to uncapped / from single APC payments to flat fee, etc.) | The novelty of this agreement is that for the first time the fees on the institutional (member) level have been calculated by using objective criteria for both service components (usage numbers for read, article output for publish). The contribution by each member to the overall fee now reflects each member’s actual usage and publication output instead of being based solely on historic subscription spend. To level out huge jumps/drops in price, year-on-year change caps have been introduced. |
| Read-access costs
If the agreement includes read access to subscription content, is a split of the cost between read access and publishing services defined? |
Yes |
| If a split of the cost between read access and publishing services is defined, what percentage of the overall agreement cost relates to read access? | 20%-50% |
| PUBLISHING-RELATED TERMS | |
| Publication output
What is the approximate number of annual corresponding author publications from your institution/consortium with the publisher (in closed, hybrid and fully OA journals)? |
720 |
| Is the agreement’s provision for OA publishing capped (e.g., limited to a specific number of articles per year) or uncapped? | Uncapped |
| Coverage
Are all journals relevant to your affiliated authors (i.e., journals in which you expect them to publish) eligible for OA publishing under the agreement? |
Yes |
| Are APC-based full open access journals covered by the agreement? | Yes, alongside hybrid titles |
| Are journals operating under other business models (S2O, Diamond OA, etc.) covered by the agreement? | No |
| Article types
Eligible article types |
Original research articles, Review articles, Letters All original research and review type content and chargeable article types are covered |
| Risk sharing
What risk-sharing mechanisms exist in cases of exceeding or not reaching the anticipated number of OA publications under the agreement? |
A mutual mid-term review of this agreement will take place during the third quarter of 2027. At this review, both TIB and IOP shall assess the number of articles accepted for OA publishing under this agreement. |
| Comments on publishing-related terms | In line with developments of article output of the institutions (members) over the past years, it is forecasted that the number of fully OA articles will increase while the number of hybrid articles will remain flat during the term of the agreement. |
| READ ACCESS-RELATED TERMS | |
| Coverage of read access
If the agreement includes read access to subscription content, is access to all relevant journals required by your users covered by the agreement? |
Yes |
| Perpetual access
If the agreement includes read access to subscription content, are perpetual access (post cancellation/termination) rights included? |
Yes |
| If perpetual access rights to subscription content is included, are there associated fees (for continued access to the platform, local hosting, data delivery, etc.)? | Yes |
| OA WORKFLOW | |
| Author workflow and verification
The date for articles’ eligibility is based on: |
Acceptance date |
| Describe the mechanisms used by the publisher for matching authors with an eligible institution: | Text-matching |
| How do consortia or institutions verify author eligibility and approve OA funding? | Via publication reports (post-publication) |
| Does the agreement include mechanisms to correct mistakenly approved, missed, or not approved publications (e.g., retrospective OA conversion of closed articles or refunding paid APCs)? | Yes |
| Does the publisher’s reporting on publications satisfy the needs of your institution (frequency, metadata fields, data quality, etc.)? | Yes |
| Comments on publisher reporting | Currently TIB receives quarterly publication reports, which are distributed to and checked by institutions (members). Change requests (including reimbursement of APCs) are usually handled quickly and to our satisfaction. IOP has communicated that it will introduce a dashboard to improve managing and reporting on the agreement. |
| May authors be charged additional publication fees (such as page charges, article development charges, etc.)? | No |
| Comments on additional publication fees | Additional publication fees only apply when authors opt-out from publishing OA. |
| How would you assess the practical implementation of the agreement? | Ok |
| Comments on workflows | See https://publishingsupport.iopscience.iop.org/ questions/ta_guidelines/ |
| PUBLISHING LICENSES | |
| Author’s licenses
Open access license types included |
CC BY mandatory |
| Has the author workflow been customized to direct authors to a certain license (e.g., by making the option for CC BY the preselected default)? | Yes |
| If the agreement covers licenses more restrictive than CC BY, do the License to Publish agreements (LtPs) offered to authors differ from the publisher’s standard LtP? | Not part of the negotiations/not discussed |
| In addition to the OA publishing provision, does the agreement include mechanisms to make author accepted manuscripts open access? | No |
Request contact to the licensee: contact@esac-initiative.org
