diff --git a/src/entities/bal.rs b/src/entities/bal.rs
index 9e7516c..08ceb32 100644
--- a/src/entities/bal.rs
+++ b/src/entities/bal.rs
@@ -15,6 +15,12 @@ pub struct Model {
 pub enum Relation {
     #[sea_orm(has_many = "super::book_instance::Entity")]
     BookInstance,
+    #[sea_orm(
+        belongs_to = "super::user::Entity",
+        from = "Column::Id",
+        to = "super::user::Column::CurrentBalId"
+    )]
+    User,
 }
 
 impl Related<super::book_instance::Entity> for Entity {
diff --git a/src/entities/user.rs b/src/entities/user.rs
index f0b2ad0..25652fc 100644
--- a/src/entities/user.rs
+++ b/src/entities/user.rs
@@ -10,6 +10,7 @@ pub struct Model {
     #[sea_orm(unique)]
     pub username: String,
     pub hashed_password: String,
+    pub current_bal_id: Option<u32>,
 }
 
 impl Model {
diff --git a/src/main.rs b/src/main.rs
index dd7b8c1..4229796 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -195,6 +195,8 @@ async fn run_server(db: Arc<DatabaseConnection>, port: u16) {
         .routes(routes!(routes::bal::create_bal))
         .routes(routes!(routes::bal::update_bal))
         .routes(routes!(routes::bal::get_bals))
+        .routes(routes!(routes::bal::get_current_bal))
+        .routes(routes!(routes::bal::set_current_bal))
         // Authentication
         .route_layer(middleware::from_fn_with_state(shared_state.clone(), routes::auth::auth_middleware))
         .routes(routes!(routes::auth::auth))
diff --git a/src/routes/bal.rs b/src/routes/bal.rs
index ceb9b69..c59402c 100644
--- a/src/routes/bal.rs
+++ b/src/routes/bal.rs
@@ -2,11 +2,11 @@ use std::sync::Arc;
 
 use axum::{extract::{Path, State}, Json};
 use reqwest::{StatusCode};
-use sea_orm::{ActiveModelTrait, ActiveValue::{NotSet, Set}, ColumnTrait, EntityTrait, QueryFilter, TryIntoModel};
+use sea_orm::{ActiveModelTrait, ActiveValue::{NotSet, Set}, ColumnTrait, EntityTrait, IntoActiveModel, QueryFilter, TryIntoModel};
 use serde::{Deserialize, Serialize};
 use utoipa::IntoParams;
 
-use crate::{entities::{bal, prelude::*}, routes::auth::Claims, AppState};
+use crate::{entities::{bal, prelude::*, user}, routes::auth::Claims, utils::auth::user_is_bal_owner, AppState};
 
 
 #[derive(IntoParams)]
@@ -159,3 +159,68 @@ pub async fn get_bals(
         (StatusCode::NOT_FOUND, Json(vec![]))
     }
 }
+
+#[axum::debug_handler]
+#[utoipa::path(
+    get,
+    path = "/bal/current",
+    security(("jwt" = [])),
+    responses(
+        (status = OK, body = bal::Model, description = "Your current active BAL"),
+        (status = NOT_FOUND, description = "You don't have a currently active BAL"),
+    ),
+    summary = "Get your current active BAL",
+    description = "Get your current active BAL",
+    tag = "bal-api",
+)]
+pub async fn get_current_bal(
+    State(state): State<Arc<AppState>>,
+    claims: Claims,
+) -> (StatusCode, Json<Option<bal::Model>>) {
+    if let Ok(Some(user)) = User::find_by_id(claims.user_id).one(state.db_conn.as_ref()).await {
+        if let Some(bal_id) = user.current_bal_id {
+            (StatusCode::OK, Json(Some(Bal::find_by_id(bal_id).one(state.db_conn.as_ref()).await.unwrap().unwrap())))
+        } else {
+            (StatusCode::NOT_FOUND, Json(None))
+        }
+    } else {
+        (StatusCode::INTERNAL_SERVER_ERROR, Json(None))
+    }
+}
+
+#[derive(Deserialize, utoipa::ToSchema)]
+pub struct BalIdParams{
+    id: u32,
+}
+
+#[axum::debug_handler]
+#[utoipa::path(
+    post,
+    path = "/bal/current",
+    request_body = BalIdParams,
+    security(("jwt" = [])),
+    responses(
+        (status = OK, description = "Successfully set current active BAL"),
+        (status = UNAUTHORIZED, description = "Tried to set a BAL you don't own as your active BAL"),
+    ),
+    summary = "Set your current active BAL",
+    description = "Set your current active BAL",
+    tag = "bal-api",
+)]
+pub async fn set_current_bal(
+    State(state): State<Arc<AppState>>,
+    claims: Claims,
+    Json(payload): Json<BalIdParams>,
+) -> StatusCode {
+    if !user_is_bal_owner(claims.user_id, payload.id, state.db_conn.as_ref()).await {
+        return StatusCode::UNAUTHORIZED;
+    }
+    if let Ok(Some(user)) = User::find_by_id(claims.user_id).one(state.db_conn.as_ref()).await {
+        let mut user_active_model: user::ActiveModel = user.into_active_model();
+        user_active_model.current_bal_id = Set(Some(payload.id));
+        let _ = User::update(user_active_model).exec(state.db_conn.as_ref()).await;
+        StatusCode::OK
+    } else {
+        StatusCode::INTERNAL_SERVER_ERROR
+    }
+}
diff --git a/src/utils/cli.rs b/src/utils/cli.rs
index 55722a6..2cb8b7e 100644
--- a/src/utils/cli.rs
+++ b/src/utils/cli.rs
@@ -64,7 +64,8 @@ pub async fn manage_users(db: Arc<DatabaseConnection>) {
                             let new_user = user::ActiveModel {
                                 id: NotSet,
                                 username: Set(username),
-                                hashed_password: Set(hash_password(password))
+                                hashed_password: Set(hash_password(password)),
+                                current_bal_id: Set(None)
                             };
                             let res = new_user.insert(db.as_ref()).await.unwrap();