diff --git a/Gemfile b/Gemfile
index b485664a4..255b8954a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -124,3 +124,4 @@ gem "rails_db", "~> 2.4"
 gem "meta-tags"
 gem "inline_svg"
 gem "breadcrumbs_on_rails"
+gem "tinymce-rails"
diff --git a/Gemfile.lock b/Gemfile.lock
index 5627f30fb..41ca6bdea 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -582,6 +582,8 @@ GEM
     thor (1.3.2)
     tilt (2.4.0)
     timeout (0.4.1)
+    tinymce-rails (7.5.1)
+      railties (>= 3.1.1)
     turbo-rails (2.0.11)
       actionpack (>= 6.0.0)
       railties (>= 6.0.0)
@@ -710,6 +712,7 @@ DEPENDENCIES
   standard (~> 1.0)
   stimulus-rails
   tailwindcss-rails (~> 2.0)
+  tinymce-rails
   tzinfo-data
   web-console (>= 4.1.0)
   webdrivers (~> 5.3.1)
diff --git a/app/controllers/account/calculators_controller.rb b/app/controllers/account/calculators_controller.rb
index dec87775d..f0f918ecd 100644
--- a/app/controllers/account/calculators_controller.rb
+++ b/app/controllers/account/calculators_controller.rb
@@ -77,7 +77,8 @@ def collect_fields_for_kind(kind)
 
   def calculator_params
     params.require(:calculator).permit(
-      :id, :en_name, :uk_name,
+      :id, :en_name, :uk_name, :ukranian_additional_notes,
+      :english_additional_notes,
       formulas_attributes: [:id, :expression, :en_label, :uk_label, :calculator_id, :en_unit, :uk_unit, :_destroy],
       fields_attributes: [:id, :en_label, :uk_label, :var_name, :kind, :_destroy,
         categories_attributes: [:id, :en_name, :uk_name, :price, :_destroy]]
diff --git a/app/javascript/controllers/tinymce_controller.js b/app/javascript/controllers/tinymce_controller.js
new file mode 100644
index 000000000..30c7ef112
--- /dev/null
+++ b/app/javascript/controllers/tinymce_controller.js
@@ -0,0 +1,16 @@
+import { Controller } from '@hotwired/stimulus'
+
+export default class extends Controller {
+    static targets = ['input']
+
+    connect() {
+        let config = Object.assign({ target: this.inputTarget }, TinyMCERails.configuration.default )
+        tinymce.init(config)
+        
+    }
+
+    disconnect () {
+       tinymce.remove()
+    }
+  }
+
diff --git a/app/models/calculator.rb b/app/models/calculator.rb
index 05d304683..6c61cff4c 100644
--- a/app/models/calculator.rb
+++ b/app/models/calculator.rb
@@ -35,6 +35,8 @@ class Calculator < ApplicationRecord
   validates :en_name, :uk_name, presence: true
   validates :en_name, :uk_name, length: { minimum: 3, maximum: 50 }
   validates :slug, presence: true, uniqueness: true
+  validates :english_additional_notes, length: { maximum: 150 }
+  validates :ukranian_additional_notes, length: { maximum: 150 }
 
   def self.ransackable_attributes(auth_object = nil)
     ["created_at", "id", "name", "preferable", "slug", "updated_at", "uuid"]
diff --git a/app/views/account/calculators/partials/_form.html.erb b/app/views/account/calculators/partials/_form.html.erb
index 781d15c5d..1327f9ebe 100644
--- a/app/views/account/calculators/partials/_form.html.erb
+++ b/app/views/account/calculators/partials/_form.html.erb
@@ -25,6 +25,8 @@
       </div>
     </div>
   </div>
+  
+  <%= render "account/calculators/partials/tinymce_form", f: f %>
 
   <div class="button-group d-flex">
     <%= f.button :submit, t('account.calculators.new.create_calculator_button'), class: 'btn btn-green me-2 height-auto w-auto' %>
diff --git a/app/views/account/calculators/partials/_tinymce_form.html.erb b/app/views/account/calculators/partials/_tinymce_form.html.erb
new file mode 100644
index 000000000..a20a54886
--- /dev/null
+++ b/app/views/account/calculators/partials/_tinymce_form.html.erb
@@ -0,0 +1,14 @@
+  <%= tinymce_assets %> 
+  <div data-controller="tinymce">
+    <div class="pt-4">
+      <%= f.label :ukranian_additional_notes, "Ukrainian Additional Notes" %>
+      <%= f.text_area :ukranian_additional_notes, data: { tinymce_target: "input" }, class: "tinymce", rows: 20, cols: 60 %>
+    </div>
+
+    <div class="pt-4 pb-4">
+      <%= f.label :english_additional_notes, "English Additional Notes" %>
+      <%= f.text_area :english_additional_notes, data: { tinymce_target: "input" }, class: "tinymce", rows: 20, cols: 60 %>
+    </div>
+  </div>
+
+  <%= tinymce %>
\ No newline at end of file
diff --git a/config/tinymce.yml b/config/tinymce.yml
new file mode 100644
index 000000000..f5e83a25e
--- /dev/null
+++ b/config/tinymce.yml
@@ -0,0 +1,8 @@
+height: 300
+width: 800
+menubar: false
+toolbar:
+  - undo redo | blocks | bold italic | alignleft aligncenter alignright | bullist numlist outdent indent | removeformat 
+plugins:
+  - insertdatetime lists media table code  wordcount
+license_key: 'gpl'
\ No newline at end of file
diff --git a/db/migrate/20241121165300_add_language_notes_to_calculators.rb b/db/migrate/20241121165300_add_language_notes_to_calculators.rb
new file mode 100644
index 000000000..3ad19e5f8
--- /dev/null
+++ b/db/migrate/20241121165300_add_language_notes_to_calculators.rb
@@ -0,0 +1,8 @@
+class AddLanguageNotesToCalculators < ActiveRecord::Migration[7.2]
+  def change
+    change_table :calculators, bulk: true do |t|
+      t.text :ukranian_additional_notes
+      t.text :english_additional_notes
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index d530131b1..55b557872 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.2].define(version: 2024_11_07_140542) do
+ActiveRecord::Schema[7.2].define(version: 2024_11_21_165300) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
@@ -49,6 +49,8 @@
     t.string "slug"
     t.string "uk_name", default: "", null: false
     t.string "en_name", default: "", null: false
+    t.text "ukranian_additional_notes"
+    t.text "english_additional_notes"
     t.index ["slug"], name: "index_calculators_on_slug", unique: true
   end
 
diff --git a/spec/models/calculator_spec.rb b/spec/models/calculator_spec.rb
index 2a4940887..9bf69de8e 100644
--- a/spec/models/calculator_spec.rb
+++ b/spec/models/calculator_spec.rb
@@ -32,6 +32,8 @@
     it { is_expected.to validate_length_of(:uk_name).is_at_least(3).is_at_most(50) }
     it { is_expected.to validate_presence_of(:slug) }
     it { is_expected.to validate_uniqueness_of(:slug) }
+    it { is_expected.to validate_length_of(:english_additional_notes).is_at_most(150) }
+    it { is_expected.to validate_length_of(:ukranian_additional_notes).is_at_most(150) }
   end
 
   describe "associations" do