AIM: To evaluate and compare the patients opinion on the two types of anti- TNF-α therapies in a Hungarian cohort of IBD patients. METHODS: This was a prospective, multicentre, questionnaire-based observational study carried out in three Hungarian tertiary centres. From April to September 2014, an anonymous questionnaire was distributed to patients diagnosed with ulcerative colitis (UC) or Crohn’s disease (CD), who have received infliximab (IFX) and/or adalimumab (ADA). The survey focused on the preferences of the two anti-TNF-α therapies on the basis of the efficacy, the administration routes and the side effects. RESULTS: 292 IBD patients, 216 CD, 75 UC and 1 indeterminate colitis patient completed the questionnaire. The mean duration of biological therapy was 1.7 (1 - 7) years. IFX treated patients noticed improvement of symptoms at 4 - 5 weeks while ADA treated patients noticed at 5 - 6 weeks. There was no difference between the patients’ satisfaction regarding the types of anti-TNF-α therapy if they received both. However, subcutaneous administration was preferred by ADA-treated patients previously receiving IFX (p = 0.007) compared to intravenous route and they did not intend to change the mode of therapy (p = 0.040). 90% of the patients, receiving only IFX or ADA were satisfied with their present therapy. The majority of patients (186/292, 63.7%) would not switch therapy. 63 of 291, 22% of the patients reported to have some concern with biological therapy—the majority (32/63, 50.8%) due to fear from side effects. CONCLUSION: Generally, patients preferred and would not change the present anti-TNF-α therapy, however, subcutaneous administration was preferred among those patients who had have experience with both.