Does buying a house affect your tax return?

Good day, financial experts. Could you please elaborate on the tax implications of purchasing a house? I've been told that it might have a significant impact on my tax return, but I'm not entirely sure how. Could you walk me through the various factors that come into play, such as mortgage interest deductions, property taxes, and any other deductions or credits that may be available? Additionally, are there any differences in tax treatment for primary residences and investment properties? I'm keen to understand how buying a house could potentially alter my tax situation. Thank you for your time and assistance.