Each male Israelite must give a half shekel annually

"This is what everyone who is numbered shall give: half a shekel according to the shekel of the sanctuary (the shekel is twenty gerahs), half a shekel as a contribution to the LORD.

Hebrew

יג זֶה יִתְּנוּ, כָּל-הָעֹבֵר עַל-הַפְּקֻדִים--מַחֲצִית הַשֶּׁקֶל, בְּשֶׁקֶל הַקֹּדֶשׁ: עֶשְׂרִים גֵּרָה, הַשֶּׁקֶל--מַחֲצִית הַשֶּׁקֶל, תְּרוּמָה לַיהוָה.

Greek

13 καὶ τοῦτό ἐστιν ὃ δώσουσιν ὅσοι ἂν παραπορεύωνται τὴν ἐπίσκεψιν· τὸ ἥμισυ τοῦ διδράχμου, ὅ ἐστιν κατὰ τὸ δίδραχμον τὸ ἅγιον· εἴκοσι ὀβολοὶ τὸ δίδραχμον, τὸ δὲ ἥμισυ τοῦ διδράχμου εἰσφορὰ κυρίῳ.

• Parashah: Ki Tisa
• Sefer HaChinuch: 105
• Mishneh Torah: Times — Shekels

• Exodus 30:13

Enumeration and classification from BibleData. The Greek is the Septuagint reading of the same verse, carried by the source for comparison.