diff --git a/nummi/main/models.py b/nummi/main/models.py
index 1884869..73e2fde 100644
--- a/nummi/main/models.py
+++ b/nummi/main/models.py
@@ -12,7 +12,10 @@ from django.utils.translation import gettext as _
 
 class UserModel(models.Model):
     user = models.ForeignKey(
-        settings.AUTH_USER_MODEL, on_delete=models.CASCADE, verbose_name=_("User"), editable=False
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        verbose_name=_("User"),
+        editable=False,
     )
 
     class Meta:
@@ -330,6 +333,10 @@ class Snapshot(AccountModel):
 class NummiForm(ModelForm):
     template_name = "main/form/base.html"
 
+    def __init__(self, *args, **kwargs):
+        kwargs.pop("user", None)
+        super().__init__(*args, **kwargs)
+
 
 class AccountForm(NummiForm):
     class Meta:
@@ -348,6 +355,12 @@ class TransactionForm(NummiForm):
         model = Transaction
         fields = "__all__"
 
+    def __init__(self, *args, **kwargs):
+        _user = kwargs.pop("user")
+        super().__init__(*args, **kwargs)
+        self.fields["category"].queryset = Category.objects.filter(user=_user)
+        self.fields["account"].queryset = Account.objects.filter(user=_user)
+
 
 class InvoiceForm(NummiForm):
     prefix = "invoice"
@@ -361,3 +374,8 @@ class SnapshotForm(NummiForm):
     class Meta:
         model = Snapshot
         fields = "__all__"
+
+    def __init__(self, *args, **kwargs):
+        _user = kwargs.pop("user")
+        super().__init__(*args, **kwargs)
+        self.fields["account"].queryset = Account.objects.filter(user=_user)
diff --git a/nummi/main/views.py b/nummi/main/views.py
index 9347e4e..36da9d3 100644
--- a/nummi/main/views.py
+++ b/nummi/main/views.py
@@ -48,8 +48,11 @@ class UserMixin(LoginRequiredMixin):
     def get_queryset(self, **kwargs):
         return super().get_queryset().filter(user=self.request.user)
 
+    def get_form_kwargs(self):
+        return super().get_form_kwargs() | {"user": self.request.user}
 
-class UserCreateView(LoginRequiredMixin, CreateView):
+
+class UserCreateView(UserMixin, CreateView):
     def form_valid(self, form):
         form.instance.user = self.request.user
         return super().form_valid(form)