The item that carried the growth

Turkey's economy grew 2.3 per cent year on year and 1.1 per cent on the quarter in the second quarter of 2026 on the chained volume index, below the market expectation of 2.7 per cent. On the expenditure side the item carrying that growth has a name: resident household consumption spending rose 3.5 per cent, faster than output itself. Government final consumption fell 1.8 per cent, and gross fixed capital formation held still at 0.6 per cent.[1]

The production side confirms the same divide. Agriculture, forestry and fishing grew 13.3 per cent and information and communication activities 8.6 per cent, while industry stopped at 2.4 per cent, trade, transport, accommodation and food services rose 0.5 per cent and construction fell 1.9 per cent. Household spending accelerated 3.5 per cent while the trade and transport activities that spending runs through appear to have grown 0.5 per cent, and the gap points to households buying more without that showing up yet on the production side.[1]

The 3.60 lira added to the same budget

The budget that carried the growth carries a new item from 1 September. A litre of diesel will carry 3 lira more special consumption tax and 60 kuruş more value added tax, 3.60 lira more tax in total. Arriving after a quarter in which household consumption rose 3.5 per cent, the increase makes filling a 50-litre tank about 180 lira more expensive.[1], [2]

Pump prices are expected to reach 81.08 lira in Istanbul, 82.20 lira in Ankara and 82.47 lira in Izmir, and the eastern provinces carry the highest expected figure at 83.93 lira. For heavy vehicles the sum grows: a tank with a capacity of 1,500 litres costs roughly 5,400 lira more to fill. That is a fixed increase in the cost of haulage; how much of it reaches a household's basket depends on pump prices staying at this level and is uncertain for now.[2]

Which number should we watch?

The Eigen Radar column of 28 August put the same question to France: does a flat quarter leave room in household budgets? Turkey's second quarter arrives somewhere similar by a different route: there is growth, and resident household consumption spending at 3.5 per cent runs ahead of output, but government final consumption fell 1.8 per cent and gross fixed capital formation held at 0.6 per cent. Another reading is possible: weak investment may have more to do with financing conditions than with demand, and the pace of household spending may reflect purchases brought forward.[1], [3]

Pump prices in September will set the number to watch. If they reach the levels given, the roughly 5,400 lira of extra cost for a heavy vehicle filling a 1,500-litre tank becomes the load carried by fuel-linked items in consumer prices for September. An average inflation figure may smooth that over; what really needs watching is the monthly change in the items tied to diesel.[2]