How to Split an IFRS 16 Monthly Lease Payment Between Interest Expense and Principal Reduction
Recognizing interest on the lease liability and reducing the principal balance each month under IFRS 16.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Interest Expense (Lease) | Expense (+) | 2,500.00 | - |
| Lease Liability (Principal) | Liability (-) | 7,500.00 | - |
| Cash / Bank | Asset (-) | - | 10,000.00 |
💡 Accountant's Note
Each lease payment is split: the interest portion is an income statement expense and the balance reduces the lease liability on the balance sheet.
Practitioner & Systems Framework
💻 ERP Architecture
Interest expense = Opening lease liability × IBR ÷ 12. The principal repayment = Total payment minus interest expense. As the lease liability decreases, the interest component also decreases each month (effective interest method). The ROU asset depreciates separately (see re-rou-asset-depreciation) — these are two independent calculations. For variable lease payments (rent reviews, CPI-linked rents), the IFRS 16 lease liability is remeasured when the payment change is confirmed.
⚠️ Audit Flags
Auditors confirm that the two P&L charges (interest on lease liability + ROU depreciation) correctly replace what would have been a single rent expense under the old IAS 17. The total P&L charge is typically front-loaded under IFRS 16 (higher in early years). A lease payment schedule that does not reconcile to the lease liability amortization schedule indicates an error in the IFRS 16 model.
📄 Required Documentation
IFRS 16 amortization schedule (opening liability, interest at IBR, payment, closing liability), monthly payment vs. interest split, lease liability reconciliation to balance sheet, ROU asset depreciation schedule (separate), and variable rent remeasurement events log.
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Expert Analysis by Qusai Ahmad
General Accountant Supervisor & IFRS Specialist
Specialized in SAP GUI automation and Middle Eastern tax compliance. Building digital tools for the next generation of finance leaders.