14. Is there a limit on the amount a donor can contribute to a political party during a non-election specific period?

Art. 30 - "(8) Donations received by political party, including its regional branches, from one legal entity during a calendar year shall not exceed forty-three million three hundred thousand rubles. Donations received by political party, including its regional branches, from one individual during a calendar year shall not exceed four million three hundred thirty thousand rubles.

(9) The total amount of annual donations received by political party and its regional branches shall not exceed four billion three hundred thirty million rubles. Whereby, the sum of annual donations received by the regional branch of political party shall not exceed eighty-six million six hundred thousand rubles".

Source: Article 30 (8) and (9), Federal Law on Political Parties of the Russian Federation, 2001 (as of December 5, 2017)

There are three kind of limits: on donations by a legal entity, by a natural person, and on the total amount of donations (all annually).