MediumIV Macro Policy & Sovereign Debt6 October 2026, Tuesday

Turkish Treasury borrows 188 billion lira as October interest outstrips principal

The Turkish Treasury raised 187.9 billion lira across four bond auctions on 5 and 6 October. The two-year bond priced at a compound rate of 39.87%; of October's domestic debt service, 247.8 billion lira is interest and 188.8 billion lira is principal.

Location: ANKARA

CNBC-e reported on 5 October that the Treasury raised 100.84 billion lira at its two- and five-year auctions, including sales to public bodies and non-competitive bids. The 707-day two-year bond priced at a compound rate of 39.87% and the five-year at 38.71%. Nominal bids for the two-year paper totalled 38.99 billion lira, while net sales came to only 24.24 billion lira. Bloomberg HT said a further 87.02 billion lira was raised on 6 October from two bonds: a four-year note indexed to TLREF and an eight-year fixed-coupon bond. The eight-year priced at 36.40%; TLREF is the Turkish lira reference rate, calculated from overnight interbank repo trades.

The constraint is not the interest rate itself but the weight of interest in debt service. Foreks reported on 30 September that October's domestic debt service totals 436.6 billion lira, of which 247.8 billion is interest and only 188.8 billion principal. The Treasury plans 414.8 billion lira of domestic borrowing this month: 180.8 billion through auctions and 220 billion through direct sales. Some 251.8 billion lira of repayments fell on a single day, 7 October, which made the two-day auction window the key moment of the month.

The curve is inverted. Investing.com data show the two-year market yield at 36.53% and the ten-year at 32.75% on 7 October. The policy rate has stood at 37% since 10 September, and a cut is expected at the 22 October MPC meeting. The 39.87% compound rate paid at the front end shows the Treasury accepting costly funding before any cut arrives.

Talay assessment

Bottom line

With October interest payments of 247.8 billion lira exceeding principal, the debt stock is growing just to roll over its own interest. The Treasury covered the 251.8 billion lira due on 7 October with its two-day auctions, but paid 39.87% on two-year paper. If a cut comes on 22 October, costs at later auctions may ease; if not, the interest burden stays heavy into November.

Likely effects

Budget interest billNegative1–6 months
Interest payments of 247.8 billion lira make up 57% of October's domestic debt service, squeezing room for non-interest spending.
Yield curveUncertainWeeks
The Treasury paid 39.87% on two-year paper while the market yield stood at 36.53%; this gap at the front end shows a cut is priced in but has yet to reach Treasury funding costs.
Bank balance sheetsUncertain1–6 months
With most sales going to primary dealers, banks' share of fixed-rate paper rises; a cut would bring valuation gains, while no cut would bring funding pressure.

Possibilities, ranked

1
A cut lowers costs55%
The MPC cuts on 22 October, and the compound rate at the Treasury's next auctions, for the 14 and 21 October payments, falls below 38%.
Watch: The 22 October MPC decision and the compound rate at the next two-year auction
2
Rates stay high30%
Reserve losses or currency pressure push the MPC to wait; auction rates hold at 39–40% and the interest burden carries into November.
Watch: Weekly CBRT reserve data from 8 October and USD/TRY
3
Demand weakens15%
The fund crisis dampens banks' appetite for balance-sheet exposure, the bid-to-cover ratio drops below 1.5 and the Treasury leans on direct sales.
Watch: Nominal bids and the share of direct sales at upcoming auctions

Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.

Market reaction

Indicators affected

2-year auction compound rate▼ 39.87%
Two-day borrowing▼ 187.9bn lira
October interest payments▼ 247.8bn lira
10-year yield (7 Oct)▲ 32.75%

Historical context