To say “Happy New Year” in Hebrew, you can use:
שָׁנָה טוֹבָה
Pronounced: Shanah Tovah
This phrase is commonly used to wish someone a good and sweet new year, particularly around Rosh Hashanah, the Jewish New Year. For a more casual greeting, you can just say “Shanah Tovah!”
If you want to wish someone happy new year for the Gregorian new year you can also say Shana Tove or:
“Shana Ezrachit Tova 2025” which refers directly to the Gregorian new year.