diff --git a/client b/client
index 7eaf34d0..2e4b1589 160000
--- a/client
+++ b/client
@@ -1 +1 @@
-Subproject commit 7eaf34d09e49bb0f30225368e20c63fb18c049bf
+Subproject commit 2e4b158935ea31e1cf0c8504b6293d36ec703edb
diff --git a/common/proto/table_definition.proto b/common/proto/table_definition.proto
index 1e7aa49b..67946424 100644
--- a/common/proto/table_definition.proto
+++ b/common/proto/table_definition.proto
@@ -58,6 +58,11 @@ service TableDefinition {
   // Physical column names and identities remain unchanged.
   rpc SetColumnPresentation(SetColumnPresentationRequest) returns (SetColumnPresentationResponse);
 
+  // Shows or hides one column in bundled data-entry forms. This is presentation
+  // metadata only: hidden columns remain available to data APIs, scripts and
+  // backend calculations.
+  rpc SetColumnFormVisibility(SetColumnFormVisibilityRequest) returns (SetColumnFormVisibilityResponse);
+
   // Drops a table and its metadata, then deletes the profile if it becomes empty.
   rpc DeleteTable(DeleteTableRequest) returns (DeleteTableResponse);
 }
@@ -471,6 +476,10 @@ message ColumnBehavior {
 
   // Stable public identity used when updating this column's presentation.
   int64 column_id = 5;
+
+  // True when bundled data-entry clients should not render this column.
+  // This is not an authorization boundary; data APIs still expose the column.
+  bool hidden_from_forms = 6;
 }
 
 // A script that targets a specific column in a table.
@@ -507,6 +516,24 @@ message SetColumnPresentationResponse {
   int64 row_version = 4;
 }
 
+message SetColumnFormVisibilityRequest {
+  string profile_name = 1;
+  string table_name = 2;
+  int64 column_id = 3;
+  bool hidden_from_forms = 4;
+  // Row version returned by GetProfileDetails when the column was read.
+  int64 expected_row_version = 5;
+}
+
+message SetColumnFormVisibilityResponse {
+  bool success = 1;
+  string message = 2;
+  int64 column_id = 3;
+  bool hidden_from_forms = 4;
+  // New row version after the update.
+  int64 row_version = 5;
+}
+
 // Request to delete one table definition entirely.
 message DeleteTableRequest {
   // Profile (schema) name owning the table (must exist).
diff --git a/common/src/proto/descriptor.bin b/common/src/proto/descriptor.bin
index c073db77..8e339ff0 100644
Binary files a/common/src/proto/descriptor.bin and b/common/src/proto/descriptor.bin differ
diff --git a/common/src/proto/komp_ac.table_definition.rs b/common/src/proto/komp_ac.table_definition.rs
index 3ab28d34..27cd74db 100644
--- a/common/src/proto/komp_ac.table_definition.rs
+++ b/common/src/proto/komp_ac.table_definition.rs
@@ -495,6 +495,10 @@ pub struct ColumnBehavior {
     /// Stable public identity used when updating this column's presentation.
     #[prost(int64, tag = "5")]
     pub column_id: i64,
+    /// True when bundled data-entry clients should not render this column.
+    /// This is not an authorization boundary; data APIs still expose the column.
+    #[prost(bool, tag = "6")]
+    pub hidden_from_forms: bool,
 }
 /// A script that targets a specific column in a table.
 #[derive(serde::Serialize, serde::Deserialize)]
@@ -549,6 +553,36 @@ pub struct SetColumnPresentationResponse {
     #[prost(int64, tag = "4")]
     pub row_version: i64,
 }
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct SetColumnFormVisibilityRequest {
+    #[prost(string, tag = "1")]
+    pub profile_name: ::prost::alloc::string::String,
+    #[prost(string, tag = "2")]
+    pub table_name: ::prost::alloc::string::String,
+    #[prost(int64, tag = "3")]
+    pub column_id: i64,
+    #[prost(bool, tag = "4")]
+    pub hidden_from_forms: bool,
+    /// Row version returned by GetProfileDetails when the column was read.
+    #[prost(int64, tag = "5")]
+    pub expected_row_version: i64,
+}
+#[derive(serde::Serialize, serde::Deserialize)]
+#[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
+pub struct SetColumnFormVisibilityResponse {
+    #[prost(bool, tag = "1")]
+    pub success: bool,
+    #[prost(string, tag = "2")]
+    pub message: ::prost::alloc::string::String,
+    #[prost(int64, tag = "3")]
+    pub column_id: i64,
+    #[prost(bool, tag = "4")]
+    pub hidden_from_forms: bool,
+    /// New row version after the update.
+    #[prost(int64, tag = "5")]
+    pub row_version: i64,
+}
 /// Request to delete one table definition entirely.
 #[derive(serde::Serialize, serde::Deserialize)]
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
@@ -1227,6 +1261,38 @@ pub mod table_definition_client {
                 );
             self.inner.unary(req, path, codec).await
         }
+        /// Shows or hides one column in bundled data-entry forms. This is presentation
+        /// metadata only: hidden columns remain available to data APIs, scripts and
+        /// backend calculations.
+        pub async fn set_column_form_visibility(
+            &mut self,
+            request: impl tonic::IntoRequest<super::SetColumnFormVisibilityRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::SetColumnFormVisibilityResponse>,
+            tonic::Status,
+        > {
+            self.inner
+                .ready()
+                .await
+                .map_err(|e| {
+                    tonic::Status::unknown(
+                        format!("Service was not ready: {}", e.into()),
+                    )
+                })?;
+            let codec = tonic_prost::ProstCodec::default();
+            let path = http::uri::PathAndQuery::from_static(
+                "/komp_ac.table_definition.TableDefinition/SetColumnFormVisibility",
+            );
+            let mut req = request.into_request();
+            req.extensions_mut()
+                .insert(
+                    GrpcMethod::new(
+                        "komp_ac.table_definition.TableDefinition",
+                        "SetColumnFormVisibility",
+                    ),
+                );
+            self.inner.unary(req, path, codec).await
+        }
         /// Drops a table and its metadata, then deletes the profile if it becomes empty.
         pub async fn delete_table(
             &mut self,
@@ -1381,6 +1447,16 @@ pub mod table_definition_server {
             tonic::Response<super::SetColumnPresentationResponse>,
             tonic::Status,
         >;
+        /// Shows or hides one column in bundled data-entry forms. This is presentation
+        /// metadata only: hidden columns remain available to data APIs, scripts and
+        /// backend calculations.
+        async fn set_column_form_visibility(
+            &self,
+            request: tonic::Request<super::SetColumnFormVisibilityRequest>,
+        ) -> std::result::Result<
+            tonic::Response<super::SetColumnFormVisibilityResponse>,
+            tonic::Status,
+        >;
         /// Drops a table and its metadata, then deletes the profile if it becomes empty.
         async fn delete_table(
             &self,
@@ -2052,6 +2128,57 @@ pub mod table_definition_server {
                     };
                     Box::pin(fut)
                 }
+                "/komp_ac.table_definition.TableDefinition/SetColumnFormVisibility" => {
+                    #[allow(non_camel_case_types)]
+                    struct SetColumnFormVisibilitySvc<T: TableDefinition>(pub Arc<T>);
+                    impl<
+                        T: TableDefinition,
+                    > tonic::server::UnaryService<super::SetColumnFormVisibilityRequest>
+                    for SetColumnFormVisibilitySvc<T> {
+                        type Response = super::SetColumnFormVisibilityResponse;
+                        type Future = BoxFuture<
+                            tonic::Response<Self::Response>,
+                            tonic::Status,
+                        >;
+                        fn call(
+                            &mut self,
+                            request: tonic::Request<
+                                super::SetColumnFormVisibilityRequest,
+                            >,
+                        ) -> Self::Future {
+                            let inner = Arc::clone(&self.0);
+                            let fut = async move {
+                                <T as TableDefinition>::set_column_form_visibility(
+                                        &inner,
+                                        request,
+                                    )
+                                    .await
+                            };
+                            Box::pin(fut)
+                        }
+                    }
+                    let accept_compression_encodings = self.accept_compression_encodings;
+                    let send_compression_encodings = self.send_compression_encodings;
+                    let max_decoding_message_size = self.max_decoding_message_size;
+                    let max_encoding_message_size = self.max_encoding_message_size;
+                    let inner = self.inner.clone();
+                    let fut = async move {
+                        let method = SetColumnFormVisibilitySvc(inner);
+                        let codec = tonic_prost::ProstCodec::default();
+                        let mut grpc = tonic::server::Grpc::new(codec)
+                            .apply_compression_config(
+                                accept_compression_encodings,
+                                send_compression_encodings,
+                            )
+                            .apply_max_message_size_config(
+                                max_decoding_message_size,
+                                max_encoding_message_size,
+                            );
+                        let res = grpc.unary(method, req).await;
+                        Ok(res)
+                    };
+                    Box::pin(fut)
+                }
                 "/komp_ac.table_definition.TableDefinition/DeleteTable" => {
                     #[allow(non_camel_case_types)]
                     struct DeleteTableSvc<T: TableDefinition>(pub Arc<T>);
diff --git a/server b/server
index 2e9522fe..9d960ff7 160000
--- a/server
+++ b/server
@@ -1 +1 @@
-Subproject commit 2e9522fe257344df11a9968d572e57258a2a355f
+Subproject commit 9d960ff719c29b92a4fb43a1a19747d883d0659d
diff --git a/web/locales/cs/main.ftl b/web/locales/cs/main.ftl
index bb99cd90..47554207 100644
--- a/web/locales/cs/main.ftl
+++ b/web/locales/cs/main.ftl
@@ -59,6 +59,7 @@ column-flag-half-up = zaokrouhleno nahoru
 column-flag-read-only = pouze pro čtení
 column-flag-generated = generovaný
 column-flag-generated-from = generováno z { $source }
+column-flag-hidden-from-forms = skrytý ve formulářích
 
 # --- Přihlášení / registrace / změna hesla -----------------------------------
 login-title = Přihlášení
@@ -189,6 +190,9 @@ td-columns-now = Současné sloupce
 td-col-column = Sloupec
 td-col-type = Typ
 td-col-notes = Poznámky
+td-form-visibility = Viditelnost ve formuláři
+td-hide-from-forms = Skrýt
+td-show-in-forms = Zobrazit
 td-scripts = Skripty
 td-col-target-column = Cílový sloupec
 td-col-description = Popis
diff --git a/web/locales/en/main.ftl b/web/locales/en/main.ftl
index 8757ba69..b7f90f32 100644
--- a/web/locales/en/main.ftl
+++ b/web/locales/en/main.ftl
@@ -64,6 +64,7 @@ column-flag-half-up = half-up
 column-flag-read-only = read only
 column-flag-generated = generated
 column-flag-generated-from = generated from { $source }
+column-flag-hidden-from-forms = hidden from forms
 
 # --- Login / register / change password ------------------------------------
 login-title = Sign in
@@ -193,6 +194,9 @@ td-columns-now = Columns it has now
 td-col-column = Column
 td-col-type = Type
 td-col-notes = Notes
+td-form-visibility = Form visibility
+td-hide-from-forms = Hide
+td-show-in-forms = Show
 td-scripts = Scripts
 td-col-target-column = Target column
 td-col-description = Description
diff --git a/web/locales/sk/main.ftl b/web/locales/sk/main.ftl
index 261162a3..eec10768 100644
--- a/web/locales/sk/main.ftl
+++ b/web/locales/sk/main.ftl
@@ -59,6 +59,7 @@ column-flag-half-up = zaokrúhlené nahor
 column-flag-read-only = len na čítanie
 column-flag-generated = generovaný
 column-flag-generated-from = generovaný z { $source }
+column-flag-hidden-from-forms = skrytý vo formulároch
 
 # --- Prihlásenie / registrácia / zmena hesla -------------------------------
 login-title = Prihlásenie
@@ -189,6 +190,9 @@ td-columns-now = Súčasné stĺpce
 td-col-column = Stĺpec
 td-col-type = Typ
 td-col-notes = Poznámky
+td-form-visibility = Viditeľnosť vo formulári
+td-hide-from-forms = Skryť
+td-show-in-forms = Zobraziť
 td-scripts = Skripty
 td-col-target-column = Cieľový stĺpec
 td-col-description = Popis
diff --git a/web/src/lib.rs b/web/src/lib.rs
index 7f97f68b..7687e797 100644
--- a/web/src/lib.rs
+++ b/web/src/lib.rs
@@ -344,6 +344,7 @@ mod tests {
             "/admin/tables/columns/add/builder",
             "/admin/tables/presentation/alias",
             "/admin/tables/presentation/order",
+            "/admin/tables/presentation/visibility",
             "/admin/tables/delete",
             "/admin/profiles/copy",
             "/admin/tables/from-template",
@@ -481,6 +482,10 @@ mod tests {
                 "/admin/tables/presentation/order",
                 "profile=billing&table=invoice&column_ids=1&column_ids=2",
             ),
+            (
+                "/admin/tables/presentation/visibility",
+                "profile=billing&table=invoice&column_id=1&hidden_from_forms=true",
+            ),
             ("/admin/tables/columns/add", "profile=billing&table=invoice"),
             ("/admin/tables/builder", ""),
             ("/admin/tables", ""),
diff --git a/web/src/pages/admin/table_definition/loader.rs b/web/src/pages/admin/table_definition/loader.rs
index 81debd98..33ebacc4 100644
--- a/web/src/pages/admin/table_definition/loader.rs
+++ b/web/src/pages/admin/table_definition/loader.rs
@@ -225,6 +225,8 @@ pub(crate) async fn load_page(
                                 // incomplete server capability response does
                                 // not grant permission by omission.
                                 renameable: behavior.is_some_and(|behavior| behavior.renameable),
+                                hidden_from_forms: behavior
+                                    .is_some_and(|behavior| behavior.hidden_from_forms),
                             }
                         })
                         .collect(),
diff --git a/web/src/pages/admin/table_definition/logic.rs b/web/src/pages/admin/table_definition/logic.rs
index 888b4e1b..4c5746ef 100644
--- a/web/src/pages/admin/table_definition/logic.rs
+++ b/web/src/pages/admin/table_definition/logic.rs
@@ -23,8 +23,8 @@ use crate::{
     AppState,
     definitions::table_definition::{
         AddTableColumnsRequest, CopyProfileRequest, CreateInvoiceTemplateTableRequest,
-        ColumnPresentation, DeleteTableRequest, SetColumnPresentationRequest,
-        PutTableDefinitionRequest,
+        ColumnPresentation, DeleteTableRequest, PutTableDefinitionRequest,
+        SetColumnFormVisibilityRequest, SetColumnPresentationRequest,
     },
     {i18n::Locale, tr},
     schema::{ColumnForm, proto_columns, validate_column_alias, validate_table_name},
@@ -35,7 +35,7 @@ use super::{
     loader::{self, load_page},
     state::{
         AliasForm, CopyForm, DeleteForm, DetailColumn, GeneratedTableView, InvoiceTemplateForm,
-        LoadError, OrderForm, PageInputs, Selection, TableDefinitionPageState,
+        LoadError, OrderForm, PageInputs, Selection, TableDefinitionPageState, VisibilityForm,
     },
     ui,
 };
@@ -551,6 +551,49 @@ pub(crate) async fn set_column_order(
     .await
 }
 
+/// POST /admin/tables/presentation/visibility — show or hide one column in
+/// bundled data-entry forms without changing its data-plane behavior.
+pub(crate) async fn set_column_visibility(
+    State(state): State<AppState>,
+    headers: HeaderMap,
+    Form(form): Form<VisibilityForm>,
+) -> Response {
+    if let Some(rejection) = reject_cross_site(&headers) {
+        return rejection;
+    }
+
+    let inputs = PageInputs::for_selection(Selection {
+        profile: form.profile.clone(),
+        table: form.table.clone(),
+    });
+    let request = SetColumnFormVisibilityRequest {
+        profile_name: form.profile,
+        table_name: form.table,
+        column_id: form.column_id,
+        hidden_from_forms: form.hidden_from_forms,
+        expected_row_version: form.expected_row_version,
+    };
+    let Ok(request) = authenticated_request(&headers, request) else {
+        return Redirect::to("/login").into_response();
+    };
+
+    let mut definitions = state.definitions.clone();
+    match definitions.set_column_form_visibility(request).await {
+        Ok(response) if response.get_ref().success => {
+            let mut inputs = inputs;
+            inputs.status = Some(response.into_inner().message);
+            respond(state, headers, inputs, Page::Presentation, StatusCode::OK).await
+        }
+        Ok(response) => {
+            let message = response.into_inner().message;
+            refuse(state, headers, inputs, Page::Presentation, message).await
+        }
+        Err(error) => {
+            refuse(state, headers, inputs, Page::Presentation, error.message().to_string()).await
+        }
+    }
+}
+
 /// The table's columns as the backend has them now, in their current order.
 ///
 /// Both presentation writes have to send every column, and the ones they are
diff --git a/web/src/pages/admin/table_definition/mod.rs b/web/src/pages/admin/table_definition/mod.rs
index 118320e4..0e1fd2b8 100644
--- a/web/src/pages/admin/table_definition/mod.rs
+++ b/web/src/pages/admin/table_definition/mod.rs
@@ -50,6 +50,10 @@ pub(crate) fn router() -> Router<AppState> {
             "/admin/tables/presentation/order",
             post(logic::set_column_order),
         )
+        .route(
+            "/admin/tables/presentation/visibility",
+            post(logic::set_column_visibility),
+        )
         .route("/admin/tables/delete", get(logic::delete_page))
         .route("/admin/tables/delete", post(logic::delete_table))
         // Profile-scoped.
diff --git a/web/src/pages/admin/table_definition/state.rs b/web/src/pages/admin/table_definition/state.rs
index 2734597f..d6de9cca 100644
--- a/web/src/pages/admin/table_definition/state.rs
+++ b/web/src/pages/admin/table_definition/state.rs
@@ -159,6 +159,7 @@ pub(crate) struct DetailColumn {
     pub read_only: bool,
     pub generated_from: String,
     pub renameable: bool,
+    pub hidden_from_forms: bool,
 }
 
 impl DetailColumn {
@@ -186,6 +187,9 @@ impl DetailColumn {
         if self.read_only {
             flags.push(crate::tr!(*locale, "column-flag-read-only"));
         }
+        if self.hidden_from_forms {
+            flags.push(crate::tr!(*locale, "column-flag-hidden-from-forms"));
+        }
         if !self.generated_from.is_empty() {
             flags.push(crate::tr!(
                 *locale,
@@ -266,6 +270,20 @@ pub(crate) struct OrderForm {
     pub column_ids: Vec<i64>,
 }
 
+#[derive(Clone, Debug, Default, serde::Deserialize)]
+pub(crate) struct VisibilityForm {
+    #[serde(default)]
+    pub profile: String,
+    #[serde(default)]
+    pub table: String,
+    #[serde(default)]
+    pub expected_row_version: i64,
+    #[serde(default)]
+    pub column_id: i64,
+    #[serde(default)]
+    pub hidden_from_forms: bool,
+}
+
 /// The copy-profile panel. An empty `table_names` copies the whole profile,
 /// which is what the backend takes an empty list to mean.
 #[derive(Clone, Debug, Default, serde::Deserialize)]
@@ -515,6 +533,7 @@ mod tests {
                     read_only: false,
                     generated_from: String::new(),
                     renameable: true,
+                    hidden_from_forms: false,
                 },
                 DetailColumn {
                     column_id: 2,
@@ -528,6 +547,7 @@ mod tests {
                     read_only: true,
                     generated_from: "work_phone".to_string(),
                     renameable: false,
+                    hidden_from_forms: false,
                 },
                 DetailColumn {
                     column_id: 3,
@@ -541,6 +561,7 @@ mod tests {
                     read_only: false,
                     generated_from: "accounting".to_string(),
                     renameable: true,
+                    hidden_from_forms: false,
                 },
             ],
         };
diff --git a/web/src/pages/admin/table_definition/ui.rs b/web/src/pages/admin/table_definition/ui.rs
index 274ebd53..b970a29d 100644
--- a/web/src/pages/admin/table_definition/ui.rs
+++ b/web/src/pages/admin/table_definition/ui.rs
@@ -288,6 +288,7 @@ mod tests {
                     read_only: false,
                     generated_from: String::new(),
                     renameable: true,
+                    hidden_from_forms: false,
                 }],
             }),
             history: Vec::new(),
diff --git a/web/templates/pages/admin/table_definition/presentation_panel.html b/web/templates/pages/admin/table_definition/presentation_panel.html
index f69e48fc..a2b82a69 100644
--- a/web/templates/pages/admin/table_definition/presentation_panel.html
+++ b/web/templates/pages/admin/table_definition/presentation_panel.html
@@ -82,7 +82,7 @@
   <section class="panel">
     <h2>{{ nav.tr("td-columns-now") }} <span class="count">{{ detail.columns.len() }}</span></h2>
     <table class="builder-table">
-      <thead><tr><th>{{ nav.tr("td-col-column") }}</th><th>{{ nav.tr("td-col-type") }}</th><th>{{ nav.tr("td-col-notes") }}</th></tr></thead>
+      <thead><tr><th>{{ nav.tr("td-col-column") }}</th><th>{{ nav.tr("td-col-type") }}</th><th>{{ nav.tr("td-col-notes") }}</th><th>{{ nav.tr("td-form-visibility") }}</th></tr></thead>
       <tbody>
         {% for column in detail.columns %}
           <tr>
@@ -91,6 +91,21 @@
             <td>
               {%- for flag in column.flags(nav.locale) %}<span class="tag">{{ flag }}</span>{% endfor -%}
             </td>
+            <td>
+              {% if page.table_is_writable() %}
+                <form hx-post="/admin/tables/presentation/visibility"
+                      hx-target="#table-panel" hx-swap="innerHTML">
+                  <input type="hidden" name="profile" value="{{ page.selection.profile }}">
+                  <input type="hidden" name="table" value="{{ page.selection.table }}">
+                  <input type="hidden" name="expected_row_version" value="{{ detail.row_version }}">
+                  <input type="hidden" name="column_id" value="{{ column.column_id }}">
+                  <input type="hidden" name="hidden_from_forms" value="{% if column.hidden_from_forms %}false{% else %}true{% endif %}">
+                  <button class="secondary" type="submit">
+                    {% if column.hidden_from_forms %}{{ nav.tr("td-show-in-forms") }}{% else %}{{ nav.tr("td-hide-from-forms") }}{% endif %}
+                  </button>
+                </form>
+              {% endif %}
+            </td>
           </tr>
         {% endfor %}
       </tbody>