diff --git a/app/Http/Controllers/AccountController.php b/app/Http/Controllers/AccountController.php
index 9ec3fea97ef9..2435f70119e8 100644
--- a/app/Http/Controllers/AccountController.php
+++ b/app/Http/Controllers/AccountController.php
@@ -1065,6 +1065,7 @@ class AccountController extends BaseController
                 $account->quote_terms = Input::get('quote_terms');
                 $account->auto_convert_quote = Input::get('auto_convert_quote');
                 $account->auto_archive_quote = Input::get('auto_archive_quote');
+                $account->require_approve_quote = Input::get('require_approve_quote');
                 $account->allow_approve_expired_quote = Input::get('allow_approve_expired_quote');
                 $account->auto_archive_invoice = Input::get('auto_archive_invoice');
                 $account->auto_email_invoice = Input::get('auto_email_invoice');
diff --git a/app/Http/Controllers/ClientPortalController.php b/app/Http/Controllers/ClientPortalController.php
index e1f27d331fbc..4bf1c92849d8 100644
--- a/app/Http/Controllers/ClientPortalController.php
+++ b/app/Http/Controllers/ClientPortalController.php
@@ -146,13 +146,14 @@ class ClientPortalController extends BaseController
             }
         }
 
-        $showApprove = $invoice->quote_invoice_id ? false : true;
+        $showApprove = ($invoice->isQuote() && $account->require_approve_quote) ? true: false;
         if ($invoice->invoice_status_id >= INVOICE_STATUS_APPROVED) {
             $showApprove = false;
         }
 
         $data += [
             'account' => $account,
+            'approveRequired' => $account->require_approve_quote,
             'showApprove' => $showApprove,
             'showBreadcrumbs' => false,
             'invoice' => $invoice->hidePrivateFields(),
diff --git a/app/Models/Account.php b/app/Models/Account.php
index 008c99e7e941..2bfd0916dbca 100644
--- a/app/Models/Account.php
+++ b/app/Models/Account.php
@@ -109,6 +109,8 @@ class Account extends Eloquent
         'body_font_id',
         'auto_convert_quote',
         'auto_archive_quote',
+        'require_approve_quote',
+        'allow_approve_expired_quote',
         'auto_archive_invoice',
         'auto_email_invoice',
         'all_pages_footer',
diff --git a/app/Models/Invoice.php b/app/Models/Invoice.php
index 334eb49a7c11..ad4ba8d42566 100644
--- a/app/Models/Invoice.php
+++ b/app/Models/Invoice.php
@@ -787,7 +787,15 @@ class Invoice extends EntityModel implements BalanceAffecting
 
     public function canBePaid()
     {
-        return ! $this->isPaid() && ! $this->is_deleted && $this->isStandard();
+        // already paid or deleted
+        if ($this->isPaid() || $this->is_deleted) return false;
+
+        // if quote approve is required, them only standard invoices can be paid
+        if ($this->account->require_approve_quote) {
+            return $this->isStandard();
+        }
+
+        return true;
     }
 
     public static function calcStatusLabel($status, $class, $entityType, $quoteInvoiceId)
diff --git a/database/migrations/2019_04_29_073828_add_require_approve_quote.php b/database/migrations/2019_04_29_073828_add_require_approve_quote.php
new file mode 100644
index 000000000000..8a728bde4034
--- /dev/null
+++ b/database/migrations/2019_04_29_073828_add_require_approve_quote.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddRequireApproveQuote extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('accounts', function ($table) {
+            $table->boolean('require_approve_quote')->default(1);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('accounts', function ($table) {
+            $table->dropColumn('require_approve_quote');
+        });
+    }
+}
diff --git a/resources/lang/en/texts.php b/resources/lang/en/texts.php
index 4842af52adc8..f223fc96cc7c 100644
--- a/resources/lang/en/texts.php
+++ b/resources/lang/en/texts.php
@@ -2842,6 +2842,8 @@ $LANG = array(
     'auto_archive_invoice_help' => 'Automatically archive invoices when they are paid.',
     'auto_archive_quote' => 'Auto Archive',
     'auto_archive_quote_help' => 'Automatically archive quotes when they are converted.',
+    'require_approve_quote' => 'Require approve quote',
+    'require_approve_quote_help' => 'Require clients to approve quotes.',
     'allow_approve_expired_quote' => 'Allow approve expired quote',
     'allow_approve_expired_quote_help' => 'Allow clients to approve expired quotes.',
     'invoice_workflow' => 'Invoice Workflow',
diff --git a/resources/views/accounts/invoice_settings.blade.php b/resources/views/accounts/invoice_settings.blade.php
index e79e4a325a15..72cd1229c4d2 100644
--- a/resources/views/accounts/invoice_settings.blade.php
+++ b/resources/views/accounts/invoice_settings.blade.php
@@ -415,6 +415,11 @@
                                 ->blockHelp(trans('texts.auto_archive_quote_help'))
                                 ->value(1) !!}
 
+                        {!! Former::checkbox('require_approve_quote')
+                                ->text(trans('texts.enable'))
+                                ->blockHelp(trans('texts.require_approve_quote'))
+                                ->value(1) !!}
+
                         {!! Former::checkbox('allow_approve_expired_quote')
                                 ->text(trans('texts.enable'))
                                 ->blockHelp(trans('texts.allow_approve_expired_quote_help'))
diff --git a/resources/views/invoices/view.blade.php b/resources/views/invoices/view.blade.php
index d7652eb21d83..fb026a746f47 100644
--- a/resources/views/invoices/view.blade.php
+++ b/resources/views/invoices/view.blade.php
@@ -160,7 +160,7 @@
             @include($partialView)
         @else
             <div id="paymentButtons" class="pull-right" style="text-align:right">
-            @if ($invoice->isQuote())
+            @if ($invoice->isQuote() && $approveRequired)
                 {!! Button::normal(trans('texts.download'))->withAttributes(['onclick' => 'onDownloadClick()'])->large() !!}&nbsp;&nbsp;
                 @if ($showApprove)
                     {!! Button::success(trans('texts.approve'))->withAttributes(['id' => 'approveButton', 'onclick' => 'onApproveClick()', 'class' => 'require-authorization'])->large() !!}