Short answer
There is no single increase rate applicable to every Turkish alimony case in 2026. First check whether the judgment contains an annual adjustment clause. If it does, the rate, period and starting date follow that clause. If it does not, inflation alone does not automatically increase the amount in enforcement proceedings.
This guide concerns annual adjustments to existing alimony. Remarriage, waiting periods and refiling a rejected divorce case are separate issues. An application to increase, reduce or terminate alimony depends on its type and the circumstances.
What should be checked in the judgment?
Read the type of alimony, beneficiary, amount, payment start and adjustment wording together. A fixed percentage is different from an index-based clause. The judgment, rather than an unapproved agreement alone, must be examined.
Check the first adjustment date, the relevant statistical period and whether previous increases have already been applied. If the wording is unclear, do not invent an annual adjustment month or index series.
Is annual CPI inflation the same as the twelve-month average?
No. TÜİK publishes monthly change, change against the same month of the previous year and change in twelve-month averages as different measures. Select the measure required by the judgment. The twelve-month average cannot be assumed to apply to every alimony order.
The August 2026 bulletin illustrates these separate indicators. Special-coverage CPI measures must not be confused with headline CPI. Older references to TEFE or ÜFE require interpretation in context rather than an automatic substitution with a current series.
How is the calculation made?
Once the applicable rate is established, the arithmetic is: new amount = existing amount × (1 + percentage / 100). This formula calculates an identified rate; it does not determine which rate is legally applicable.
In a wholly hypothetical example, 10,000 TL increased by 20% becomes 12,000 TL. The 20% is not an official 2026 alimony rate. A subsequent hypothetical increase of 10%, if consistent with the order, produces 13,200 TL. Dates, rounding, partial months and payments require separate checking. Interest is not the same as an annual adjustment.
What if there is no adjustment clause?
An increase may be sought from the court where the legal conditions are met. Article 176 of the Turkish Civil Code is relevant to spousal alimony; the provisions concerning child maintenance, including Article 331, require separate consideration.
The parties’ financial circumstances, needs and fairness matter. Inflation data alone does not predetermine the court’s decision. An existing clear adjustment clause generally does not require a new lawsuit every year simply to apply it; changing the order is a different request.
How should unpaid increases be recorded?
Prepare a month-by-month schedule showing the amount due, payments and remaining principal. Do not apply the latest amount retrospectively to every period or claim the same months twice. Preserve the official bulletin used for each adjustment.
For a possible increase application, gather the existing order, earlier amendment decisions, income and expense records, relevant child-related costs and payment history. This is general information, not a binding interpretation of an individual judgment or a case-specific calculation.