The Central Bank of Luxembourg (BCL) announced that, based on preliminary data, the aggregated balance sheet of Luxembourg’s banks reached €1.009trn on 30 November 2025, compared with €1.003trn on 31 October 2025, an increase of 0.57%.
Balance sheet growth was driven mainly by other assets on the asset side and other liabilities on the liability side, the BCL noted. On an annual basis, the BCL said the aggregated balance sheet increased by 3.78%. The figures were published in a BCL statement on 7 January 2026.
Net interbank lending, defined by the BCL as the difference between interbank loans and deposits, fell by €4.703bn, or 2.09%, to €220.484bn at the end of November 2025.
Loans
Loans to resident non-bank customers rose by €173m, or 0.14%, between October 2025 and November 2025. Over 12 months, the BCL said these loans increased by €6.977bn, or 6.18%.
On a yearly basis, loans to non-financial corporations fell by €734m, or 3.03%, the BCL said. Over the same period, the BCL said loans for house purchases increased by €1.376bn, or 3.35%, while loans to other financial intermediaries rose by €6.276bn, or 15.49%.
Deposits
Deposits from the resident non-bank sector retracted by €4.446bn, or 1.41%, between October 2025 and November 2025. Over 12 months, the BCL said these deposits increased by €19.754bn, or 6.79%.
Between November 2024 and November 2025, the BCL said other financial intermediaries’ deposits increased by €16.744bn, or 8.6%. It added that these deposits represented 68.01% of the total as at 30 November 2025 and comprised deposits from monetary and non-monetary investment funds.
Over the same period, household deposits rose by €2.061bn, or 4.39%, the BCL said. Deposits from non-financial corporations decreased by €178m, or 0.72%, while deposits from the other sectors increased by €1.126bn, or 4.55%, it said.
Reserve requirement
The BCL said the reserve requirement for the maintenance period from 23 December 2025 to 10 February 2026 amounted to €6.652bn.
Minimum reserves to be held with the BCL increased by €168m compared with the previous maintenance period, the central bank said.
