Instead of one vague total, build your budget category by category. Here's the structure, with realistic starting figures for a single person in Istanbul. For independent, continuously-updated verification of any figure below, Numbeo's Turkey cost of living data is a useful cross-check.
Category 1: Housing EUR 400-1,200/month for a furnished one-bedroom, depending on neighborhood (see the Kadikoy vs. Besiktas breakdown for specifics). This is your largest single line item — get this number locked in first, since everything else scales around it.
Category 2: Daily living ● Groceries: EUR 200-350/month depending on whether you cook mostly at home or eat out often ● Eating out: EUR 150-300/month for regular casual meals; touristy areas run considerably higher ● Transport: EUR 40-80/month using public transit (Istanbulkart covers metro, tram, ferry, bus)
Category 3: Utilities and connectivity ● Electricity, gas, water: EUR 60-150/month, with a real winter spike from heating ● Home internet: EUR 15-30/month ● Building maintenance fee (aidat): EUR 20-80/month ● Mobile plan: EUR 10-20/month
Category 4: Visa, residency, and legal setup (one-time or annual, not monthly) ● Residence permit: total cost typically $150-300 for the first year ● Private health insurance meeting the residency minimum: budget the equivalent of roughly EUR 400-900/year ● Notarization and translation costs for contracts: a few hundred euros, one-time
Category 5: Entertainment and buffer EUR 100-250/month, scaling with lifestyle. Always build in a buffer beyond your predicted total — the lira's volatility means a comfortable budget in one month can feel tighter a few months later.
Putting it together
A single person living comfortably in Istanbul typically lands in the EUR 1,200-2,000/month range once every category above is included, not just rent. Build your own number using the ranges above rather than anchoring to a single averaged figure someone else quotes you.