diff --git a/Gemfile b/Gemfile
index fe7ceeed..a46969fc 100644
--- a/Gemfile
+++ b/Gemfile
@@ -27,7 +27,6 @@ gem 'haml-rails'
 gem 'kaminari'
 gem 'simple_form'
 gem 'inherited_resources'
-gem 'localize_input', git: 'https://github.com/carchrae/localize_input.git'
 gem 'daemons'
 gem 'doorkeeper'
 gem 'doorkeeper-i18n'
diff --git a/Gemfile.lock b/Gemfile.lock
index cbffaaac..7c08ec69 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,9 +1,3 @@
-GIT
-  remote: https://github.com/carchrae/localize_input.git
-  revision: 597e33bb42a3b0fd58c3ea7d4f5a208c2911b43d
-  specs:
-    localize_input (0.1.0)
-
 GIT
   remote: https://github.com/technoweenie/acts_as_versioned.git
   revision: 63b1fc8529d028fae632fe80ec0cb25df56cd76b
@@ -606,7 +600,6 @@ DEPENDENCIES
   kaminari
   less-rails
   listen
-  localize_input!
   mailcatcher
   meta_request
   midi-smtp-server
diff --git a/app/models/article.rb b/app/models/article.rb
index f8c129b6..76a68605 100644
--- a/app/models/article.rb
+++ b/app/models/article.rb
@@ -1,4 +1,5 @@
 class Article < ApplicationRecord
+  include LocalizeInput
   include PriceCalculation
 
   # @!attribute name
diff --git a/app/models/article_price.rb b/app/models/article_price.rb
index cca4c200..f6879eac 100644
--- a/app/models/article_price.rb
+++ b/app/models/article_price.rb
@@ -1,4 +1,5 @@
 class ArticlePrice < ApplicationRecord
+  include LocalizeInput
   include PriceCalculation
 
   # @!attribute price
diff --git a/app/models/bank_transaction.rb b/app/models/bank_transaction.rb
index fa1a3da5..ff2dc9ef 100644
--- a/app/models/bank_transaction.rb
+++ b/app/models/bank_transaction.rb
@@ -1,4 +1,5 @@
 class BankTransaction < ApplicationRecord
+  include LocalizeInput
   # @!attribute external_id
   #   @return [String] Unique Identifier of the transaction within the bank account.
   # @!attribute date
diff --git a/app/models/concerns/localize_input.rb b/app/models/concerns/localize_input.rb
new file mode 100644
index 00000000..8198d7b2
--- /dev/null
+++ b/app/models/concerns/localize_input.rb
@@ -0,0 +1,25 @@
+module LocalizeInput
+  extend ActiveSupport::Concern
+
+  class_methods do
+    def localize_input_of(*attr_names)
+      attr_names.flatten.each do |attr|
+        define_method "#{attr}=" do |input|
+          begin
+            if input.is_a? String
+              Rails.logger.debug "Input: #{input.inspect}"
+              separator = I18n.t("separator", :scope => "number.format")
+              delimiter = I18n.t("delimiter", :scope => "number.format")
+              input.gsub!(delimiter, "") if input.match(/\d+#{Regexp.escape(delimiter)}+\d+#{Regexp.escape(separator)}+\d+/) # Remove delimiter
+              input.gsub!(separator, ".") # Replace separator with db compatible character
+            end
+            self[attr] = input
+          rescue
+            Rails.logger.warn "Can't localize input: #{input}"
+            self[attr] = input
+          end
+        end
+      end
+    end
+  end
+end
diff --git a/app/models/financial_transaction.rb b/app/models/financial_transaction.rb
index 5c26058b..bd2c4e58 100644
--- a/app/models/financial_transaction.rb
+++ b/app/models/financial_transaction.rb
@@ -1,6 +1,8 @@
 # financial transactions are the foodcoop internal financial transactions
 # only ordergroups have an account  balance and are happy to transfer money
 class FinancialTransaction < ApplicationRecord
+  include LocalizeInput
+
   belongs_to :ordergroup, optional: true
   belongs_to :user
   belongs_to :financial_link, optional: true
diff --git a/app/models/group_order_article.rb b/app/models/group_order_article.rb
index 8df4fa59..5a02734d 100644
--- a/app/models/group_order_article.rb
+++ b/app/models/group_order_article.rb
@@ -2,6 +2,8 @@
 # The chronologically order of the Ordergroup - activity are stored in GroupOrderArticleQuantity
 #
 class GroupOrderArticle < ApplicationRecord
+  include LocalizeInput
+
   belongs_to :group_order
   belongs_to :order_article
   has_many   :group_order_article_quantities, dependent: :destroy
diff --git a/app/models/invoice.rb b/app/models/invoice.rb
index 8a9dde9f..f2a8866f 100644
--- a/app/models/invoice.rb
+++ b/app/models/invoice.rb
@@ -1,5 +1,6 @@
 class Invoice < ApplicationRecord
   include CustomFields
+  include LocalizeInput
 
   belongs_to :supplier
   belongs_to :created_by, :class_name => 'User', :foreign_key => 'created_by_user_id'