Rent itself is usually the biggest cost, but a few others catch first-time renters off guard. Electricity in condos is often billed at a higher per-unit rate by the building's management than the government rate, especially if you run air-conditioning heavily. Water is typically billed separately too, though usually at a modest cost.
Some buildings charge a common-area or maintenance fee directly to tenants rather than folding it into the rent, so it's worth confirming this upfront. If you need internet and it's not included, that's an additional monthly cost, along with any TV or streaming subscriptions.
We list all known recurring costs alongside the base rent for every property we manage, so you can budget accurately before committing rather than being surprised by the first bill.