diff --git a/programs/drift/src/instructions/admin.rs b/programs/drift/src/instructions/admin.rs
index a4ecc2f8d1..cfdca1810a 100644
--- a/programs/drift/src/instructions/admin.rs
+++ b/programs/drift/src/instructions/admin.rs
@@ -4764,6 +4764,7 @@ pub fn handle_admin_deposit<'c: 'info, 'info>(
         market_index,
         explanation: DepositExplanation::Reward,
         transfer_user: None,
+        signer: Some(ctx.accounts.admin.key()),
     };
     emit!(deposit_record);
 
diff --git a/programs/drift/src/instructions/user.rs b/programs/drift/src/instructions/user.rs
index e6d13d6fec..ac60cb0d26 100644
--- a/programs/drift/src/instructions/user.rs
+++ b/programs/drift/src/instructions/user.rs
@@ -653,6 +653,11 @@ pub fn handle_deposit<'c: 'info, 'info>(
     } else {
         DepositExplanation::None
     };
+    let signer = if ctx.accounts.authority.key() != user.authority {
+        Some(ctx.accounts.authority.key())
+    } else {
+        None
+    };
     let deposit_record = DepositRecord {
         ts: now,
         deposit_record_id,
@@ -670,6 +675,7 @@ pub fn handle_deposit<'c: 'info, 'info>(
         market_index,
         explanation,
         transfer_user: None,
+        signer,
     };
     emit!(deposit_record);
 
@@ -825,6 +831,7 @@ pub fn handle_withdraw<'c: 'info, 'info>(
         total_withdraws_after: user.total_withdraws,
         explanation: deposit_explanation,
         transfer_user: None,
+        signer: None,
     };
     emit!(deposit_record);
 
@@ -995,6 +1002,7 @@ pub fn handle_transfer_deposit<'c: 'info, 'info>(
             total_withdraws_after: from_user.total_withdraws,
             explanation: DepositExplanation::Transfer,
             transfer_user: Some(to_user_key),
+            signer: None,
         };
         emit!(deposit_record);
     }
@@ -1059,6 +1067,7 @@ pub fn handle_transfer_deposit<'c: 'info, 'info>(
             total_withdraws_after,
             explanation: DepositExplanation::Transfer,
             transfer_user: Some(from_user_key),
+            signer: None,
         };
         emit!(deposit_record);
     }
@@ -1271,6 +1280,7 @@ pub fn handle_transfer_pools<'c: 'info, 'info>(
             total_withdraws_after: from_user.total_withdraws,
             explanation: DepositExplanation::Transfer,
             transfer_user: Some(to_user_key),
+            signer: None,
         };
         emit!(deposit_record);
 
@@ -1305,6 +1315,7 @@ pub fn handle_transfer_pools<'c: 'info, 'info>(
             total_withdraws_after: to_user.total_withdraws,
             explanation: DepositExplanation::Transfer,
             transfer_user: Some(from_user_key),
+            signer: None,
         };
         emit!(deposit_record);
     }
@@ -1371,6 +1382,7 @@ pub fn handle_transfer_pools<'c: 'info, 'info>(
             total_withdraws_after: from_user.total_withdraws,
             explanation: DepositExplanation::Transfer,
             transfer_user: Some(to_user_key),
+            signer: None,
         };
         emit!(deposit_record);
 
@@ -1405,6 +1417,7 @@ pub fn handle_transfer_pools<'c: 'info, 'info>(
             total_withdraws_after: to_user.total_withdraws,
             explanation: DepositExplanation::Transfer,
             transfer_user: Some(from_user_key),
+            signer: None,
         };
         emit!(deposit_record);
     }
@@ -4139,10 +4152,7 @@ pub struct InitializeReferrerName<'info> {
 #[instruction(market_index: u16,)]
 pub struct Deposit<'info> {
     pub state: Box<Account<'info, State>>,
-    #[account(
-        mut,
-        constraint = can_sign_for_user(&user, &authority)?
-    )]
+    #[account(mut)]
     pub user: AccountLoader<'info, User>,
     #[account(
         mut,
diff --git a/programs/drift/src/state/events.rs b/programs/drift/src/state/events.rs
index f4806fa5be..d193e17c83 100644
--- a/programs/drift/src/state/events.rs
+++ b/programs/drift/src/state/events.rs
@@ -51,6 +51,7 @@ pub struct DepositRecord {
     pub total_withdraws_after: u64,
     pub explanation: DepositExplanation,
     pub transfer_user: Option<Pubkey>,
+    pub signer: Option<Pubkey>,
 }
 
 #[derive(Clone, Copy, BorshSerialize, BorshDeserialize, PartialEq, Eq, Default)]