İSTANBUL SERBEST MUHASEBECİ
| Years | Individual Tax Taxpayers | Corporate Income Tax Taxpayers |
| 2024 | 15% - 40% | 25% |
| 2023 | 15% - 40% | 25% |
| 2022 | 15% - 40% | 23% |
| 2021 | 15% - 40% | 25% |
| 2020 | 15% - 40% | 22% |
| 2019 | 15% - 40% | 22% |
| 2018 | 15% - 35% | 22% |
| 2017 | 15% - 35% | 20% |
| 2016 | 15% - 35% | 20% |
| 2015 | 15% - 35% | 20% |
| 2014 | 15% - 35% | 20% |
| 2013 | 15% - 35% | 20% |
| 2012 | 15% - 35% | 20% |
