MediumIV Macro Policy & Sovereign Debt21 September 2026, Monday · 17:30 TRT (UTC+3)
Central government debt stock rose by 422.5 billion lira in August to 15.89 trillion lira; foreign-currency share at 51%
According to data released by the Ministry of Treasury and Finance on 21 September, the central government's gross debt stock stood at 15,893.8 billion lira as of 31 August 2026. The increase from 15,471.3 billion lira at the end of July was 422.5 billion lira; 8,145.8 billion lira of the stock is foreign-currency denominated.
According to August data published by the Ministry of Treasury and Finance on 21 September 2026, the central government's gross debt stock rose to 15,893.8 billion lira. At the end of July the stock was 15,471.3 billion lira; the one-month increase was 422.5 billion lira, or about 2.73%. The domestic debt stock rose from 9,244.1 billion lira to 9,545.4 billion lira and the external debt stock from 6,227.2 billion lira to 6,348.5 billion lira. About 301.3 billion lira of the increase came from domestic debt and 121.3 billion lira from external debt.
The currency breakdown is striking: 7,748 billion lira (49%) of the stock is in Turkish lira and 8,145.8 billion lira (51%) in foreign currency. By interest structure, 10,144 billion lira is fixed-rate, 5,010.5 billion lira floating-rate and 739.3 billion lira CPI-indexed. With the foreign-currency share above half, the debt burden in lira terms is directly tied to exchange-rate moves; the dollar/lira setting a new record of 48.82 lira the same week keeps this channel live.
In the same table, the Treasury's receivables stock was reported at 256.2 billion lira. Of this, 218.5 billion lira is owed by the Türkiye Wealth Fund; collections from receivables in January–August 2026 were only 7.8 billion lira. The dollar equivalent at the end-August rate and the currency breakdown of foreign-currency debt are not given in the sources and could not be calculated independently.
Talay assessment
Bottom line
With more than half of the debt stock in foreign currency, the link between the exchange rate and public finances is tightening: every dollar/lira record enlarges the stock in lira terms even without new borrowing. The parts of August's 422.5 billion lira increase coming from the exchange rate and from new issuance could not be separated; the most likely path is for the foreign-currency share to stay above 50% while currency pressure persists.
Likely effects
- Turkish public financesNegative1–6 months
The 8,145.8 billion lira foreign-currency stock converts any rise in the exchange rate directly into a heavier lira debt burden; interest and principal payments take up a larger share of the budget.
- Interest-rate riskNegative1–6 months
The 5,010.5 billion lira floating-rate stock would quickly raise interest expense if the policy rate stays at 37% or rises.
- Wealth Fund receivablesUncertain6 months+
Collections of 7.8 billion lira in 8 months against 218.5 billion lira of Wealth Fund receivables show the receivables stock is only a limited buffer for debt rollover.
Possibilities, ranked
- 1FX share stays above 50%60%
Currency pressure persists, the foreign-currency share stays around 51% in the September data and the stock exceeds 16 trillion lira.
Watch: End-September debt stock data and the dollar/lira's path above its 48.82 lira record
- 2Lira issuance lowers the share25%
The Treasury increases fixed-rate lira issuance in the domestic market, and the foreign-currency share falls below 50%.
Watch: The share of fixed-rate lira issues in the October domestic borrowing programme
- 3Currency shock inflates the stock15%
A sharp move in the dollar/lira markedly enlarges the foreign-currency stock in a single month, and the monthly increase exceeds 422.5 billion lira.
Watch: Türkiye's 5-year risk premium rising above 250 basis points
Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.
Market reaction
Indicators affected
- Gross debt stock▼ 15.89 trillion lira
- Foreign-currency share▼ 51%
- Dollar/lira record▼ 48.82 lira
Historical context
USD/TRY, last 6 months
- 116/09 · BIST 100 fell 5.54% to 13,122.58 points as 17 stocks closed at the floor price
- 217/09 · Diesel passed 100 lira a litre in Türkiye for the first time: a third consecutive increase
- 321/09 · Central government debt stock rose by 422.5 billion lira in August to 15.89 trillion lira; foreign-currency share at 51%
- 421/09 · The dollar reaches an all-time high of 48.82 lira as the BIST 100 falls 1.92% at midday to 13,028.71 points
- 521/09 · The 72,825 dwt tanker LR Stephanie is struck in Hormuz and two seafarers wounded; weekend transits fall to 17 ships
- 621/09 · Export producer prices rose 32.60% year on year in August, with the increase in energy reaching 106.24%