Loan servicers are freezing interest charges on thousands of restructured household loans in Greece after a Supreme Court ruling raised questions over how debt repayments should be calculated.
Law 3869/2010, commonly known in Greece as the Katseli Law, covers the loans. The crisis-era framework allowed over-indebted individuals to seek court-supervised debt restructuring. Until the Supreme Court clarifies the legal implications of the ruling, affected borrowers will continue solely paying down the principal with no additional interest charges.
The decision has triggered concern across Greece’s financial sector because it challenges the traditional method for calculating interest on regulated debts. Loan servicers are now reviewing the ruling and plan to seek formal clarification from the Supreme Court before applying a final methodology.
Supreme Court ruling changes interest calculation
Supreme Court Plenary Decision 6/2026 sits at the center of the issue. The court found that lenders should calculate interest on debts restructured under Law 3869/2010 based on the monthly installment set by the court rather than on the total outstanding debt balance.
That interpretation marks a significant departure from standard banking practice. In a conventional repayment schedule, lenders calculate interest on the remaining balance of the loan. At the beginning of repayment, interest usually takes up a larger share of the monthly installment. As the borrower gradually repays principal, the interest portion decreases.
The Supreme Court adopted an alternative approach for loans covered by the debt-relief framework. According to the ruling, calculating interest on the monthly installment better serves the original purpose of the law, which aimed to help over-indebted individuals recover financially and return to economic and social activity.
Borrowers will only pay principal for now
Until the Supreme Court clarifies the ruling, loan servicers plan to suspend interest charges on affected loans. This means borrowers whose debts fall under the crisis-era framework will continue making payments, but those payments will reduce principal rather than cover interest.
Legal representatives for borrowers argue that the court’s interpretation could make many of these loans almost interest-free in practice. Under that view, lenders would divide the total regulated debt by the number of installments ordered by the court and then calculate interest only on that fixed monthly amount.
Some financial-sector representatives, however, interpret the decision differently, saying the ruling necessitates further clarification before servicers can apply a reliable calculation method. A senior source from the loan-servicing sector has reportedly said the industry should not adopt any interpretation before the Supreme Court provides additional guidance. Servicers are therefore preparing to submit a formal request for clarification.
Around 300,000 loans could be affected
Market estimates suggest that the affected framework may cover approximately 300,000 loans, with a total value of about €6 billion ($6.9 billion). Greek banks no longer hold most of these loans directly, after transferring, selling, or securitizing them during the cleanup of the country’s banking system.
Early market estimates place the potential cost for creditors at around €1 billion ($1.15 billion), depending on how the authorities and courts ultimately apply the ruling. The final impact will also depend on whether the decision guides only future calculations or opens the way for claims over interest already paid. That question remains especially sensitive. The ruling does not clearly settle whether it has retroactive effect, leaving borrowers, servicers, funds, and banks waiting for further legal clarity.
Possible impact on Greece’s loan securitizations
The ruling may also affect recoveries from securitized loan portfolios. Many loans covered by the debt-relief framework entered transactions linked to Greece’s “Hercules” asset-protection scheme, which helped banks reduce non-performing loans through state guarantees.
If collections from affected loans fall sharply, financial-sector sources warn that pressure could increase on certain securitizations. In a worst-case scenario, lower-than-expected recoveries could raise concerns over whether the state may eventually need to honor guarantees under the Hercules program.
For now, the extent of the risk remains uncertain. It will depend on the Supreme Court’s final interpretation, the number of loans directly affected, and whether courts or regulators allow any retroactive adjustment of interest already charged.
Broader concerns over Greece’s interest freeze on restructured loans
Banking sources are also monitoring whether the decision could influence borrowers who utilized other restructuring tools, such as Greece’s out-of-court debt settlement mechanism. If other vulnerable borrowers seek similar treatment, the financial consequences could extend beyond loans regulated under Law 3869/2010.
At this stage, the immediate effect applies only to borrowers whose debts fall under the crisis-era framework. However, the case could become an important reference point in future disputes over household debt, creditor recoveries, and the legal limits of debt-relief protection.
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