diff --git a/test/fixtures/account_activities.yml b/test/fixtures/account_activities.yml
new file mode 100644
index 000000000..06a5b4006
--- /dev/null
+++ b/test/fixtures/account_activities.yml
@@ -0,0 +1,7 @@
+DEFAULTS: &DEFAULTS
+  account_id: 1
+
+one:
+  <<: *DEFAULTS
+  invoice: paid
+  bank_transaction: one
diff --git a/test/fixtures/bank_transactions.yml b/test/fixtures/bank_transactions.yml
new file mode 100644
index 000000000..b0b4d661c
--- /dev/null
+++ b/test/fixtures/bank_transactions.yml
@@ -0,0 +1,3 @@
+one:
+  sum: 1
+  currency: EUR
diff --git a/test/fixtures/invoices.yml b/test/fixtures/invoices.yml
new file mode 100644
index 000000000..cd4e7fbcc
--- /dev/null
+++ b/test/fixtures/invoices.yml
@@ -0,0 +1,32 @@
+DEFAULTS: &DEFAULTS
+  created_at: <%= Time.zone.parse '2010-07-05' %>
+  due_date: <%= Time.zone.parse '2010-08-05' %>
+  currency: EUR
+  seller_name: John Doe
+  seller_iban: 1234
+  buyer_name: Jane Doe
+  vat_rate: 1
+
+valid:
+  <<: *DEFAULTS
+
+exported:
+  <<: *DEFAULTS
+  exported: true
+
+cancelled:
+  <<: *DEFAULTS
+  cancelled_at: 2010-07-05
+
+paid:
+  <<: *DEFAULTS
+  sum_cache: 1
+
+outstanding:
+  <<: *DEFAULTS
+  due_date: <%= Time.zone.parse '2010-07-06' %>
+
+overdue:
+  <<: *DEFAULTS
+  due_date: <%= Time.zone.parse '2010-07-05' %>
+
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 1a9c4d378..b0c3d26e5 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -6,6 +6,8 @@ require 'capybara/minitest'
 
 class ActiveSupport::TestCase
   include FactoryBot::Syntax::Methods
+
+  fixtures :all
 end
 
 class ActionDispatch::IntegrationTest