diff --git a/src/docs/forms/aktrabot.py b/src/docs/forms/aktrabot.py
index b06796c..fa04ff5 100644
--- a/src/docs/forms/aktrabot.py
+++ b/src/docs/forms/aktrabot.py
@@ -46,7 +46,7 @@ class AktRabotItemForm(MyBaseModelForm):
     class Meta:
         model = AktRabotItem
         exclude = ['parent']
-        fields ='__all__'
+        fields = '__all__'
 
 
 class AktRabotItemAdminForm(AktRabotItemForm):
diff --git a/src/docs/forms/invoice.py b/src/docs/forms/invoice.py
index 789f811..4587214 100644
--- a/src/docs/forms/invoice.py
+++ b/src/docs/forms/invoice.py
@@ -45,7 +45,8 @@ class InvoiceAdminForm(InvoiceForm):
 
 class InvoicesListForm(forms.Form):
     """Форма со списком всех счетов пользователя."""
-    invoice = forms.ModelChoiceField(queryset=Invoice.objects.get_all(None), empty_label=u'все счета', required=False)
+    invoice = forms.ModelChoiceField(queryset=Invoice.objects.get_all(None),
+                                     empty_label=u'все счета', required=False)
 
     def __init__(self, user, *args, **kwargs):
         super(InvoicesListForm, self).__init__(*args, **kwargs)
diff --git a/src/docs/models/invoice.py b/src/docs/models/invoice.py
index 4960814..fb33099 100644
--- a/src/docs/models/invoice.py
+++ b/src/docs/models/invoice.py
@@ -1,6 +1,9 @@
 # -*- coding: utf-8 -*-
 from django.db import models
+from django.db.models import Sum
 
+from django.conf import settings
+from pytils.numeral import choose_plural
 from docs.models.base_models import BaseInvoiceModel, BaseItemInvoiceModel
 from docs.models.linked_docs_mixin import LinkedDocsMixin
 from docs import consts
@@ -25,6 +28,22 @@ class Invoice(BaseInvoiceModel, LinkedDocsMixin):
         verbose_name = u'Счёт'
         verbose_name_plural = u'Счета'
 
+    def to_string_for_json(self):
+        # Счёт №Х от ХХ.ХХ.ХХ, Х позиций, на сумму ХХ.
+        # import ipdb;ipdb.set_trace()
+        date_format = settings.DATE_INPUT_FORMATS[0]
+        count = self.invoice_items.count()
+        str_date = self.doc_date.strftime(format=date_format)
+
+        return '{name} № {number} от {date}, {count} {count_name}, на сумму {sum}'.format(
+            name=self._meta.verbose_name or '',
+            number=self.doc_num,
+            date=str_date,
+            count=count or '',
+            count_name=choose_plural(count, (u"позиция", u"позиции", u"позиций")),
+            sum=self.invoice_items.aggregate(Sum('total_price'))['total_price__sum']
+        )
+
 
 class InvoiceItem(BaseItemInvoiceModel):
     """Табличная часть счета."""
diff --git a/src/docs/views/ajax.py b/src/docs/views/ajax.py
index e498166..95b87ca 100644
--- a/src/docs/views/ajax.py
+++ b/src/docs/views/ajax.py
@@ -1,13 +1,11 @@
 # -*- coding: utf-8 -*-
 import simplejson as json
 
-from django.shortcuts import render, get_object_or_404, redirect
 from django.http import HttpResponseBadRequest, HttpResponse
 from django.core import serializers
 
 # use django.apps.apps.get_model since Django 1.9
 from django.db.models.loading import get_model
-from django.views.decorators.csrf import csrf_protect
 
 from docs.models import Invoice
 from customer.utils import raise_if_no_profile
@@ -24,7 +22,7 @@ def get_invoices(request, client_id=None):
     if client_id:
         invoices = invoices.filter(client_id=client_id)
 
-    invoices = {invoice.id: '№ %s от %s' % (invoice.doc_num, invoice.doc_date) for invoice in invoices}
+    invoices = {invoice.id: invoice.to_string_for_json() for invoice in invoices}
 
     return HttpResponse(json.dumps(invoices), content_type='application/json')
 
@@ -49,7 +47,8 @@ def get_client_by_invoice(request, invoice_id):
 
     invoice = Invoice.objects.get(company=request.user.profile, pk=invoice_id)
 
-    return HttpResponse(json.dumps([invoice.client.id, invoice.client.name]), content_type='application/json')
+    return HttpResponse(json.dumps([invoice.client.id, invoice.client.name]),
+                        content_type='application/json')
 
 
 def toggle_doc_status(request, doc_type, doc_id, doc_attr):
diff --git a/src/docs/views/base_views.py b/src/docs/views/base_views.py
index d5a6994..8accd47 100644
--- a/src/docs/views/base_views.py
+++ b/src/docs/views/base_views.py
@@ -624,7 +624,7 @@ class BaseItemsViews(BaseViews):
         """
         queryset = super(BaseItemsViews, self).get_list_qs()
         if self.LIST_SUM_FIELD:
-            queryset = queryset.annotate(doc_sum = Sum(self.LIST_SUM_FIELD))
+            queryset = queryset.annotate(doc_sum=Sum(self.LIST_SUM_FIELD))
         return queryset
 
     def get_obj_items_qs(self, obj):