Online ServicesInitial reading date
Indicates the date on which the meter reading was determined for the previous billing period and forms the starting date for the new billing period.
Bill Details
Bill Details
Learn what the information on your bill means.
Initial reading
Indicates the meter reading recorded during the previous billing period.
Consumption (m³)
Indicates the volume of natural gas that passed through the meter between the previous and new reading dates.
Corrected consumption (m³)
Indicates the corrected natural gas volume calculated taking into account pressure, temperature and compressibility variables.
Energy consumed (kWh)
Indicates the amount of energy consumed, calculated taking into account pressure, temperature and compressibility variables.
Consumption charge (TRY)
Indicates the billing amount excluding value added tax, based on the amount of energy consumed.
Deduction/Addition (TRY)
Indicates the deduction/addition applied on the previous bill and reflected on the latest bill.
Special service fee (TRY)
Indicates the fee for services provided at the subscriber’s request, excluding value added tax.
VAT (%)
Indicates the value added tax applied to unauthorised use and late-payment charges.
Final reading date
Indicates the date on which the meter was read in the new billing period so that the bill could be issued.
Final reading
Indicates the latest meter reading recorded during the new billing period.
Correction factor
Indicates the correction factor used to determine the actual volume of natural gas used at different pressures.
Average superior calorific value (kcal/m³)
Indicates the amount of energy obtained from the combustion of 1 m³ of natural gas.
Average sales price (TRY/kWh)
Indicates the average sales price of natural gas equivalent to 1 kWh of energy.
VAT (%)
Indicates the value added tax applied to the consumption charge.
Rounding (TRY)
Indicates the rounding amount applied on the latest bill to be reflected on the next bill.
Late-payment fee (TRY)
Indicates the late-payment fee applied to payments made after the due date of the previous billing period.
*As of 04.04.2026, under the tiered tariff applicable to residential consumers, invoices issued to residential consumers will show the Tier 1 residential consumption volume and the related usage charges (excluding VAT) separately in the explanation field on the bill.