diff --git a/app/models/poll/answer.rb b/app/models/poll/answer.rb
index 685830201..904216355 100644
--- a/app/models/poll/answer.rb
+++ b/app/models/poll/answer.rb
@@ -7,6 +7,7 @@ class Poll::Answer < ApplicationRecord
   validates :question, presence: true
   validates :author, presence: true
   validates :answer, presence: true
+  validate :max_votes
 
   validates :answer, inclusion: { in: ->(a) { a.question.possible_answers }},
                      unless: ->(a) { a.question.blank? }
@@ -21,4 +22,16 @@ class Poll::Answer < ApplicationRecord
       Poll::Voter.find_or_create_by!(user: author, poll: poll, origin: "web")
     end
   end
+
+  private
+
+    def max_votes
+      return if !question || question&.unique? || persisted?
+
+      author.lock!
+
+      if question.answers.by_author(author).count >= question.max_votes
+        errors.add(:answer, "Maximum number of votes per user exceeded")
+      end
+    end
 end
diff --git a/spec/models/poll/answer_spec.rb b/spec/models/poll/answer_spec.rb
index d420e367e..b2b419c23 100644
--- a/spec/models/poll/answer_spec.rb
+++ b/spec/models/poll/answer_spec.rb
@@ -23,6 +23,30 @@ describe Poll::Answer do
       expect(answer).not_to be_valid
     end
 
+    it "is not valid when user already reached multiple answers question max votes" do
+      author = create(:user)
+      question = create(:poll_question_multiple, :abc, max_votes: 2)
+      create(:poll_answer, author: author, question: question, answer: "Answer A")
+      create(:poll_answer, author: author, question: question, answer: "Answer B")
+      answer = build(:poll_answer, author: author, question: question, answer: "Answer C")
+
+      expect(answer).not_to be_valid
+    end
+
+    it "validates max votes when creating answers at the same time", :race_condition do
+      author = create(:user, :level_two)
+      question = create(:poll_question_multiple, :abc, max_votes: 2)
+      create(:poll_answer, question: question, answer: "Answer A", author: author)
+      answer = build(:poll_answer, question: question, answer: "Answer B", author: author)
+      other_answer = build(:poll_answer, question: question, answer: "Answer C", author: author)
+
+      [answer, other_answer].map do |a|
+        Thread.new { a.save }
+      end.each(&:join)
+
+      expect(Poll::Answer.count).to be 2
+    end
+
     it "is valid for answers included in the Poll::Question's question_answers list" do
       question = create(:poll_question)
       create(:poll_question_answer, title: "One", question: question)