NextFin News - Turkey's central bank is preparing to shift its market funding back to the 37% policy rate, lowering the effective cost of liquidity by 300 basis points without cutting the headline benchmark, as the worst of the Middle East shock recedes and policymakers turn to unwinding a crisis-era tightening.
The Central Bank of the Republic of Türkiye (CBRT) has kept the one-week repo rate at 37% for four straight meetings while steering bank funding to the 40% upper end of its interest-rate corridor since the US-Iran conflict flared in March. Governor Fatih Karahan signaled at the bank's August inflation briefing that normalizing liquidity conditions remains on the agenda - a move that would bring the effective funding rate back to the policy rate itself. The shift is not a rate cut, but it is easing in all but name, and it lands while the lira trades near record lows and annual inflation still runs above 30%.
The Mechanism: A 300-Basis-Point Cut Hidden in Plain Sight
The CBRT operates a corridor system: the one-week repo rate sits at 37%, the overnight lending rate (the upper bound) at 40%, and the overnight borrowing rate (the lower bound) at 35.5%. Under normal conditions, banks borrow from the central bank through the weekly repo window at the policy rate. When the war shock hit energy prices in March, the bank closed the repo window and forced funding to the 40% overnight facility - a temporary tightening of 300 basis points without a single rate decision.
That distinction matters because it means Turkey's monetary stance has been tighter than the headline 37% suggests. The effective funding rate - the marginal cost banks actually pay - has hovered near 40%. Reopening the repo window reverses that temporary overlay. The policy rate stays at 37%; the market's cost of money simply stops paying the war premium.
For banks, the transmission is direct: a lower marginal funding cost eases the squeeze on net interest margins and reduces the incentive to park liquidity at the central bank rather than lend it. For the real economy, the channel is slower but real - cheaper wholesale funding should, over time, feed into loan pricing. The CBRT's own language frames this as normalization, not stimulus. Karahan said at the August 13 briefing:
The CBRT will ensure the tightness required by the projected disinflation path in line with the interim targets.
The sequencing is deliberate, and it follows a playbook the bank has already telegraphed. Economists had expected the CBRT to unwind its temporary tightening through liquidity tools before touching the benchmark policy rate - precisely so that a future headline cut is not confused with a loss of inflation discipline. Haluk Bürümcekçi, an economist tracking the bank, said the CBRT would likely first unwind the temporary tightening by shifting funding back toward one-week repo auctions before lowering the benchmark, provided global conditions improve.
History's Precedent: The Same Tool, Twice Before
This is not the first time the CBRT has used the repo window as a shock absorber, and the two prior episodes are the strongest evidence that the current move is cyclical rather than a regime change.
In April 2025, one day after delivering a surprise 350-basis-point rate hike to 46%, the bank announced it would resume weekly repo auctions, ending a suspension that had begun on March 20. The policy rate had jumped to 46% with the corridor's upper bound at 49%; reopening the repo window was explicitly designed to prevent market rates from pinning permanently at the 49% ceiling and to let short-term rates fluctuate around the new policy rate instead. The bank's statement then was almost a template for the current moment: liquidity conditions would be closely monitored, and liquidity tools used effectively in line with monetary policy objectives. The pattern is unmistakable - a shock forces funding to the upper bound, then the repo window reopens once the shock passes, with the policy rate left as the anchor.
The second precedent runs deeper. In 2018-2019, the CBRT tightened the effective cost of funding from 7.5% in July to above 9.37% not by moving the policy rate alone, but by changing the composition of its liquidity provision - channeling funds through a mix of repos, the upper band, and the late liquidity window - and by raising reserve requirement ratios. The lesson from that cycle is that Turkey's central bank has long treated the funding mix as a separate instrument from the policy rate, one it can adjust up or down without rewriting its reaction function. The current 40% effective rate sits in that same lineage: a crisis overlay, reversible by design.
What is different this time is the framework around the tool. After the unorthodox easing of 2021-2023, the post-2023 regime has kept the repo rate as the single policy anchor and used liquidity measures only as temporary ballast. That consistency is what allows the bank to unwind the 40% overlay without markets reading it as the start of a policy reversal. In 2018-2019, the same maneuver occurred inside a less credible framework; today it occurs inside one where the 24%, 15%, and 9% inflation targets for 2026-2028 remain the stated destination.
Why Now: The War Premium Is Expiring
The trigger for the shift is the receding geopolitical risk that justified the extra tightening in the first place. Karahan told the briefing that the worst of the US-Iran conflict appears to be over, and under current conditions he does not expect severely adverse developments. With energy prices off their post-attack peaks, the upside inflation risk that prompted the 40% funding has faded enough to allow a technical unwind.
The inflation backdrop gives the bank room, but not a blank check. Annual consumer inflation eased to 31.75% in July from 32.11% in June, slightly below the 31.8% consensus - the lowest reading since March. But the monthly print accelerated to 1.78% from 0.99%, and food inflation re-accelerated to 37.53% from 35.45%. The bank itself raised its year-end 2026 inflation forecast to 28% from 26%, citing diesel, natural gas, and commodity prices. As Karahan put it:
The outlook for diesel, natural gas and commodity prices excluding energy contributed to the 2-percentage-point revision in the year-end 2026 forecast.
That 28% forecast still sits well above the bank's 24% interim target for 2026 - the gap that keeps the policy stance "tight" in the governor's framing. The bank kept its medium-term targets unchanged at 15% for 2027 and 9% for 2028, signaling that the disinflation path is intact even as the near-term trajectory is revised higher.
The Market Has Already Priced the Easing Cycle
The question is not whether the CBRT will ease, but how much is already embedded in prices - and whether this technical move is the first step of a faster-cutting cycle than the bank wants to admit. The market's answer is clear: easing is fully priced.
In the CBRT's August Market Participants Survey, respondents expect the policy rate to stay at 37% at the next meeting, then fall to 36.13% at the following meeting and 35.25% at the third. A year out, the median sees the rate at 29.59% - a cumulative cut of roughly 740 basis points from here. That is not a market hedging against a hawkish surprise; it is a market underwriting a sustained cutting cycle.
Inflation expectations tell a similar story of accommodation already baked in. Year-end 2026 CPI expectations rose to 29.43% from 29.21%, and the 24-month expectation edged up to 18.03% from 17.83% - both above the bank's own targets. The 12-month expectation improved to 23.69% from 23.95%, but the longer-dated drift higher suggests the market does not fully trust the 15% and 9% targets.
The currency market is the clearest expression of this tension. The lira traded at 48.0346 per dollar on August 21, up 0.76% on the session and near its all-time high of roughly 48.10 set this month; over the past year it has weakened 17.36%. Survey participants now expect the dollar to reach 51.66 by year-end and 57.43 in 12 months. Bond investors are equally uneasy: the 10-year government bond yield rose to 34.89% on August 21, up 2.67 percentage points in a single session and 5.63 points over the year.
Equities, by contrast, have shrugged off the pressure. The BIST 100 closed at 14,515 on August 21, up 0.82% on the day, 2.66% over the month, and 27.63% over the year - a divergence that says stock investors are betting on easing-led growth while bond and FX investors are demanding a risk premium. That split is the clearest sign that the market is not interpreting the funding shift as a clean normalization; it is interpreting it as the opening move of a broader easing cycle that may run ahead of the disinflation data.
Cyclical Unwind, Not Structural Pivot: The Call
This is a cyclical normalization, not a structural dovish pivot - and the distinction determines whether the move is benign or dangerous. The 40% effective funding rate was a crisis response, a temporary overlay imposed when a war shock threatened to rip through import prices. Its removal is mean-reverting by construction: once the shock that created it fades, the rate returns to the policy rate. Three pieces of evidence support the cyclical read.
First, the policy rate itself is unchanged at 37%, and the corridor is intact at 35.5%-40%. The bank is removing a temporary instrument, not lowering its reaction function. Second, the disinflation framework is structurally unchanged: targets of 24%, 15%, and 9% for 2026-2028 remain the anchor, and the bank has repeatedly vowed to maintain the tightness those targets require. Third, the move is conditional and reversible - Karahan did not give a date, and the bank has shown it will re-tighten liquidity if energy prices flare again.
But a cyclical leg rides on top of a structural vulnerability that no technical tweak fixes: Turkey's inflation target is 24% for this year while actual inflation runs above 31%, and the lira has lost 17% of its value in a year. A 37% policy rate against 31.75% inflation still delivers a positive real rate of roughly 5 percentage points - adequate, but far from the cushion a country with Turkey's external financing needs would want while its currency is at record lows.
The structural question is whether Turkey can hold a positive real rate through a full cutting cycle without the lira forcing its hand. The 2025 precedent is encouraging: the bank hiked 350 basis points and reopened the repo window in the same week without a currency collapse, because the move was framed as flexibility within tightening rather than a shift in direction. The risk today is that the direction of travel - down from here, per the survey's 29.59% year-ahead expectation - is no longer ambiguous, and the market will test every step.
The Counter-Thesis: Premature Easing Into a Fragile Currency
The strongest case against the normalization is that it is premature. The lira is trading near all-time lows, inflation expectations for year-end 2026 sit at 29.43% - more than 5 percentage points above the 24% target - and the bank is about to hand banks cheaper funding while import prices remain exposed to the next energy shock. From this vantage point, a 300-basis-point reduction in the effective funding rate, however technical, loosens policy precisely when credibility is most fragile.
The risk is a self-reinforcing loop: cheaper lira funding reduces the carry that supports the currency, the weaker lira feeds import inflation, and the bank is forced to reverse course - or, worse, to defend credibility with a larger move later. This is not a hypothetical. Turkey's history over the past decade is littered with episodes where premature easing into FX weakness forced sharper tightening afterward, from the 2018 currency crisis to the policy errors of 2021-2023 that pushed inflation above 80%. The counter-thesis argues the bank should wait for either a firmer lira or a clearer break in core inflation before unwinding any part of the stance.
The rebuttal is that the bank is not cutting the policy rate at all - it is removing a war premium that no longer corresponds to any observable risk, and keeping the real rate firmly positive. Holding the 40% effective rate after the shock has passed would itself be a policy error: it would tighten financial conditions beyond what the inflation outlook requires, choke credit to the real economy, and do so for no disinflationary gain. The governor's framing - normalization, not stimulus - is designed to keep expectations anchored while the technical machinery catches up with the improved risk picture.
The falsifying signal is specific: if the CBRT's next Market Participants Survey shows year-end inflation expectations rising above 30% - breaking back above the psychologically important level the August print just edged toward from 29.21% - or if the lira trades through the survey's 12-month expectation of 57.43 per dollar before the September meeting, the "contained normalization" thesis is wrong and the bank is easing into a de-anchoring dynamic.
What to Watch: The September Meeting and the FX Line
The next Monetary Policy Committee meeting is scheduled for September 10, and it will be the first real test of whether this is normalization or the first cut of a faster cycle. The base case is that the bank reopens the repo window at 37% either at that meeting or shortly before, keeps the policy rate unchanged, and repeats its commitment to the 24% interim target. The upside case for risk assets is an explicit confirmation that two 100-basis-point policy rate cuts follow at the October 22 and December 10 meetings - the path some brokerages have modeled for a year-end rate of 35%.
The downside case is a delay. If energy prices re-accelerate or the lira weakens faster than the 51.66 year-end expectation, the bank could hold the 40% effective rate longer, keeping the war premium in place and disappointing a market that has already priced the unwind. In that scenario, the gap between priced easing and delivered easing would hit bonds and equities before it hits the policy rate.
Short-term, the move is liquidity-positive for banks and mildly negative for the lira's carry appeal. Medium-term, the direction of the real economy depends on whether cheaper funding translates into credit growth without reigniting import inflation. Long-term, the structural question remains whether Turkey can converge to its 9% target without a repeat of the stop-go cycles that have defined its past decade - and that depends less on the repo window than on fiscal policy, external balances, and the credibility the bank has rebuilt since 2023.
The central bank is unwinding a war premium, not a policy stance - and the difference is exactly what the market will test between now and September.
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