diff --git a/app/Models/Credit.php b/app/Models/Credit.php
index 5ef477ff4fe7..e30520c04c64 100644
--- a/app/Models/Credit.php
+++ b/app/Models/Credit.php
@@ -52,7 +52,6 @@ class Credit extends BaseModel
         'terms',
         'public_notes',
         'private_notes',
-        'invoice_type_id',
         'tax_name1',
         'tax_rate1',
         'tax_name2',
diff --git a/app/Models/Invoice.php b/app/Models/Invoice.php
index fda940922f46..6886629fc7ae 100644
--- a/app/Models/Invoice.php
+++ b/app/Models/Invoice.php
@@ -63,7 +63,6 @@ class Invoice extends BaseModel
         'terms',
         'public_notes',
         'private_notes',
-        'invoice_type_id',
         'tax_name1',
         'tax_rate1',
         'tax_name2',
diff --git a/app/Models/Quote.php b/app/Models/Quote.php
index c1936530632a..8421a3e02c74 100644
--- a/app/Models/Quote.php
+++ b/app/Models/Quote.php
@@ -52,7 +52,6 @@ class Quote extends BaseModel
         'public_notes',
         'private_notes',
         'project_id',
-        'invoice_type_id',
         'tax_name1',
         'tax_rate1',
         'tax_name2',
diff --git a/app/Transformers/Contact/InvoiceTransformer.php b/app/Transformers/Contact/InvoiceTransformer.php
index 29a69f9419da..f850d165faa7 100644
--- a/app/Transformers/Contact/InvoiceTransformer.php
+++ b/app/Transformers/Contact/InvoiceTransformer.php
@@ -43,7 +43,6 @@ class InvoiceTransformer extends EntityTransformer
             'terms' => $invoice->terms ?: '',
             'public_notes' => $invoice->public_notes ?: '',
             'is_deleted' => (bool) $invoice->is_deleted,
-            'invoice_type_id' => (int) $invoice->invoice_type_id,
             'tax_name1' => $invoice->tax_name1 ? $invoice->tax_name1 : '',
             'tax_rate1' => (float) $invoice->tax_rate1,
             'tax_name2' => $invoice->tax_name2 ? $invoice->tax_name2 : '',