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DNB Quarterly Reporting Toolkit

Everything you need to set up and run quarterly prudential reporting to De Nederlandsche Bank. From XBRL taxonomy mapping to pre-submission validation — built for IFR/IFPR investment firms operating under Dutch supervision.

Distilled from 28+ years of regulatory reporting engagements, this toolkit replaces months of setup work with production-ready templates that reflect current DNB expectations and DLR portal requirements.

€3,500
Excl. VAT · One-time purchase
Purchase Toolkit

30-minute onboarding call included. Questions? Get in touch.

  • XBRL field mapping templates (IFR/IFPR)
  • Pre-submission validation tool (Excel)
  • DLR portal filing checklist
  • Data quality rules & error catalogue
  • Quarterly reporting calendar & playbook
  • Internal controls framework template
  • Example submission files
  • 30 minutes onboarding call

What's inside the toolkit

Interactive preview of the 7 deliverables. Each component is provided as an editable Excel workbook with pre-built formulas, conditional formatting, and documentation tabs.

XDNB_XBRL_Field_Mapping_IFR_v2.1.xlsx
4 sheets · 188 rows.xlsx
DNB FieldXBRL TagData TypeSource SystemMapping LogicValidation
C 01.00 r010 c010ei:OwnFundsAmountMonetaryGL / SubledgerSUM(CET1 items) per Art. 26 CRR≥ 0; matches C 04.00
C 01.00 r010 c020ei:Tier1CapitalAmountMonetaryGL / SubledgerCET1 + AT1 per Art. 25 CRR≥ CET1; matches C 04.00
C 02.00 r010 c010ei:RiskWeightedExposureMonetaryRisk EngineSUM(RWA) per Art. 92(3) CRRCross-check vs C 07.00
C 03.00 r010 c010ei:CapitalRatioPercentPercentageCalculatedOwn Funds / Total REA4.5% ≤ CET1 ≤ 100%
C 04.00 r010 c010ei:CommonEquityTier1MonetaryGL / SubledgerShare capital + reserves − deductionsMatches C 01.00 r010
C 06.00 r010 c010ei:CreditRiskExposureMonetaryRisk EngineEAD per standardised approach≥ 0
C 07.00 r010 c010ei:CreditRiskRWAMonetaryRisk EngineEAD × Risk Weight per CRRFeeds into C 02.00
C 09.01 r010 c010ei:LargeExposureAmountMonetaryRisk EngineExposure to single counterparty≤ 25% own funds
7Excel workbooks
188+Mapping fields
48Validation rules
7Internal controls

Why this toolkit exists

Quarterly prudential reporting to DNB is a recurring obligation that most Dutch investment firms underestimate in complexity. The IFR/IFPR framework introduced new capital and liquidity requirements specifically for investment firms, yet the XBRL taxonomy and DLR portal mechanics remain poorly documented beyond formal EBA guidelines.

This toolkit distills the practical knowledge from dozens of reporting implementations into structured, reusable templates. Instead of spending months building your reporting infrastructure from scratch, you get production-ready workbooks that reflect current DNB expectations, validation rules, and filing procedures.

What's included

XBRL Field Mapping Templates

Complete mapping of 188+ reporting fields to internal data sources. Covers own funds (COREP), capital adequacy, large exposures, liquidity, and K-factor templates with field-level guidance on data sourcing, formatting, and conditional logic.

Pre-Submission Validation Tool

Excel-based validation suite with 48 automated checks. Covers threshold validations, cross-template consistency, summation rules, and prior-period variance analysis. Flags issues as pass/warning/fail before you submit to the DLR portal.

DLR Portal Filing Checklist

Step-by-step checklist covering pre-filing data quality checks, DLR portal navigation and upload procedures, and post-submission archiving and notification tasks. Designed for operational teams running the quarterly cycle.

Data Quality Rules & Error Catalogue

Comprehensive catalogue of EBA and DNB-specific validation rules with plain-language explanations. Covers blocking errors vs. warnings, common root causes, and remediation steps for each error code.

Quarterly Reporting Calendar & Playbook

Pre-built calendar with task assignments, deadlines, and dependencies for each quarterly cycle. Includes RACI matrix, escalation procedures, and buffer periods for exception handling and management sign-off.

Internal Controls Framework

Seven core controls with frequency, ownership, and evidence documentation requirements. Covers four-eyes review, automated validation, GL reconciliation, variance analysis, management attestation, access review, and taxonomy change management.

Example Submission Files

Anonymised XBRL instance files showing correct structure, formatting, and taxonomy references. Use as templates for your own submissions or as reference when troubleshooting DLR portal validation errors.

Who this is for

This toolkit is built for Dutch investment firms subject to IFR/IFPR prudential reporting via DNB's DLR portal. It's particularly valuable for firms setting up their first quarterly reporting cycle, firms transitioning from outsourced to in-house reporting, and compliance teams looking to systematise and document their existing reporting process.

Frequently asked questions

Which DNB reporting templates does this cover?

The toolkit covers the core IFR/IFPR reporting templates: own funds (COREP C 01–C 04), capital adequacy (C 06–C 09), K-factor calculations (C 34), large exposures, leverage ratio, and liquidity templates. It does not cover AIFMD-specific or UCITS reporting — those are separate regulatory regimes.

Do I need special software to use the validation tool?

No. The validation tool runs entirely in Microsoft Excel using standard formulas and conditional formatting. No VBA macros, no external dependencies, no special plugins. It works in Excel 2016+ and Microsoft 365.

How does this relate to the EBA taxonomy updates?

The field mapping templates reference the current EBA XBRL taxonomy applicable to IFR investment firms. When EBA publishes taxonomy updates (typically annually), the toolkit's taxonomy version column and change notes help you identify which mappings need attention. We aim to publish mapping update guidance within 30 days of major EBA taxonomy releases.

Can Diletti help with implementation beyond the toolkit?

Absolutely. The toolkit covers the templates and process framework; for firm-specific data mapping, GL integration, or first-cycle hand-holding, we offer advisory engagements alongside every pack. Get in touch to discuss your requirements.

Is the onboarding call mandatory?

No, but we strongly recommend it. The 30-minute call covers how to adapt the field mappings to your chart of accounts, how to configure the validation tool for your firm's specific reporting scope, and practical DLR portal tips that aren't in the official documentation.

Ready to streamline your DNB reporting?

Get the complete toolkit and reduce your quarterly reporting setup time from months to weeks. Advisory support available for firm-specific customisation.

Purchase Toolkit — €3,500