Accurate XBRL conversions for COREP reporting

Using our robust and reliable XBRL conversion technology, you can transform your Microsoft Excel CRD IV templates into XBRL format at the click of a button. Simply populate the pre-tagged templates like any other spreadsheet, upload to our secure portal, then convert and download your XBRL file ready for submission to your regulator.

With our roll forward functionality, you can easily adopt new templates when they are released without rekeying all of your old data. After you’ve uploaded and converted your file, our secure portal will check your submission against the EBA’s validation rules, giving you confidence that your return will be accepted first time.

If you do wish to check your returns again, you can convert your XBRL file back into a human readable format, giving you total assurance prior to submission.

With no installation, full compatibility with Microsoft Excel and accurate XBRL conversions, it’s no surprise that Arkk Solutions’ COREP tool is the most widely used solution in the UK.

We also offer our XBRL viewer as a stand-alone service. Simply upload your XBRL files and convert them back into a human readable format for a final audit before submission to the regulator.

If you are reporting to the FCA we also offer the High Earner’s Report as part of our COREP solution.


  • Templates compatible with Microsoft Excel
  • No installation
  • Simple & secure web upload process
  • Link to existing Excel documents - no rekeying of data
  • Automated validation and consistency checks
  • Phone and email support


The Arkk Solutions CRD IV Portal allows you to produce EBA valid XBRL reports for COREP, FINREP and other reporting requirements, ready for submission to your local competent authority.

To create your reports, simply log in to the Portal and select the reporting templates you need. This can be tailored to fit your firm’s reporting profile, and downloaded as a standard Excel workbook. You can now locally populate this template with your own reportable data as you would any Excel spreadsheet.

When you’re ready to submit, upload your populated Excel template for XBRL conversion and validation. Your fully validated XBRL reports are now ready for successful submission.

For a full demo of the COREP portal, or for further information on how we can support you with your capital reporting obligations, please get in touch.

Key Features

  • Cost Effective
    If you are looking for the most cost-effective way to deliver your templates in XBRL, then taking advantage of our secure web service could be a great option.
  • Easy to use
    Simply log in, create and download the set of templates you need, populate them with your data and then upload them onto the system again. Within minutes you will receive a validation. If there are errors then you get concise, easy to understand messages with clear action points that’ll guide you to getting your submission right.
  • Data security
    Our service is hosted on Microsoft Azure, the chosen secure cloud platform of more than half of Fortune 500 companies.
  • Transparency
    Once you have passed the validation process, convert the Excel file for an XBRL version of your FINREP data. Additionally we give you an HTML version which you can print, read, reconcile and sign off internally before filing.
  • Future Proof
    Our strong relationships with industry regulatory bodies allow us to get first-hand insight into forthcoming legislation changes and keep our software and services up-to-date. Regular updates and upgrades ensure you remain up-to-date with all changes in submission requirements.

Getting started with COREP

  • Get in touch:

    Speak to one of our expert team for advice on pricing and to chat over any queries

    Call Us Email Us

    Or call us on:
    +44 (0) 207 036 2758 (UK) +353 (0) 1 525 5409 (Ireland)

  • Solution setup:

    We'll make sure that your solution is ready and you are confident in how it all works. Full customer support is provided throughout your service to make sure you have complete peace of mind.

Get in touch with our team of Regulatory Experts:

+44 (0) 207 036 2758 (UK) +353 (0) 1 525 5409 (Ireland)

Get in touch online:

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