diff --git a/substrate/frame/support/src/traits/voting.rs b/substrate/frame/support/src/traits/voting.rs
index f5c9e285ef3a..f18d4ed4e90b 100644
--- a/substrate/frame/support/src/traits/voting.rs
+++ b/substrate/frame/support/src/traits/voting.rs
@@ -25,14 +25,24 @@ use sp_runtime::{traits::Member, DispatchError};
 use sp_std::prelude::*;
 
 pub trait VoteTally<Votes, Class> {
+	/// Initializes a new tally.
 	fn new(_: Class) -> Self;
+	/// Returns the number of positive votes for the tally.
 	fn ayes(&self, class: Class) -> Votes;
+	/// Returns the approval ratio (positive to total votes) for the tally, without multipliers
+	/// (e.g. conviction, ranks, etc.).
 	fn support(&self, class: Class) -> Perbill;
+	/// Returns the approval ratio (positive to total votes) for the tally.
 	fn approval(&self, class: Class) -> Perbill;
+	/// Returns an instance of the tally representing a unanimous approval, for benchmarking
+	/// purposes.
 	#[cfg(feature = "runtime-benchmarks")]
 	fn unanimity(class: Class) -> Self;
+	/// Returns an instance of the tally representing a rejecting state, for benchmarking purposes.
 	#[cfg(feature = "runtime-benchmarks")]
 	fn rejection(class: Class) -> Self;
+	/// Returns an instance of the tally given some `approval` and `support`, for benchmarking
+	/// purposes.
 	#[cfg(feature = "runtime-benchmarks")]
 	fn from_requirements(support: Perbill, approval: Perbill, class: Class) -> Self;
 	#[cfg(feature = "runtime-benchmarks")]