IFRS 16 Leases

Shillinq implements the single lessee model from IFRS 16 Leases (effective 1 January 2019) and its RJ 292 Dutch GAAP equivalent. Every lease longer than 12 months and above the low-value threshold is capitalised as a right-of-use (RoU) asset with a matching lease liability, posted automatically to the general ledger via the same journal-entry surface every other bookkeeping module uses.

What you get

• A full lease register scoped per administration, with classification, IBR, term, and payment economics on one screen.
• Automatic RoU / lease-liability recognition at commencement, the matching journal entry, and a fixed-asset record carrying isRouAsset=true.
• Period-by-period schedule generation — interest, principal split, and straight-line depreciation, materialised to the lease-payment-schedule register and consumed by the period-close engine.
• Reassessment workflow for indexation, extension-option / termination-option reassessment, scope / term / payment modifications, IBR reset, impairment, abandonment, partial and full termination. Every event captures before/after snapshots, balanced GL lines, and routes through decidesk approval above EUR 100,000 RoU impact.
• Short-term (≤12 months) and low-value exemption handling with straight-line expense posting and policy elections at portfolio level.
• Annual disclosure table generation per IFRS 16.51–60 — RoU by asset class, current / non-current liability split, undiscounted maturity analysis, liability-weighted IBR, expense breakdown, qualitative narrative seed. CSV export today, PDF + XBRL in Phase 2.
• Audit-pack export index (lease-contract PDF, full schedule CSV, IBR evidence FKs, every reassessment event with snapshots, disclosure CSV) ready for the docudesk pipeline.

Where to start

1. Create a lease — register a contract, classify it, and activate the draft → active transition.
2. Payment schedule — read the period-by-period amortisation and understand the GL postings.
3. Reassessment — record indexation, extension reassessment, modifications, impairment, abandonment.
4. Exemptions — set up the portfolio policy for short-term and low-value leases.
5. Disclosures — generate and review the IFRS 16 disclosure note.
6. FAQ — IBR derivation, "reasonably certain" judgements, modification accounting, transition methodology.

Architecture

Capability	Service	Notes
Period-by-period maths	LeaseAmortizationCalculator	Pure-logic; cents-only arithmetic; unit-tested against IASB illustrative examples.
Schedule generation	LeasePaymentScheduleService	Persists LeasePaymentSchedule rows via the real OpenRegister saveObject.
RoU / liability recognition	LeaseRecognitionService	Produces balanced JE lines for the generic GL surface; no parallel tables.
Disclosure table	LeaseDisclosureService	Aggregates by asset class; CSV export; PDF render in Phase 2.
Reassessment events	LeaseReassessmentService	Indexation / extension / modification / impairment; routes ≥ EUR 100K to decidesk.
Transition wizard	LeaseTransitionWizard	Modified- and full-retrospective; honours IFRS 16.C3/C10 expedient elections.
Audit pack	LeaseAuditPackGenerator	Skeleton index — PDF/ZIP rendering lands with docudesk Phase 2.
Activation gate	LeaseContractGuard	Fail-closed precondition: classification enum + every economic field present (REQ-LC-004).

All schemas live in the ADR-037 register.d/bookkeeping-ifrs-16-lease.json fragment; the monolith register is never touched.