+sub _fatal_or_null {
+ my ($self, $error) = @_;
+
+ my $conf = new FS::Conf;
+
+ $error = "fatal: can't yet handle ". $error;
+ my $name = $self->taxname;
+ $name = 'Other surcharges'
+ if ($self->passtype == 2);
+
+ if ($conf->exists('ignore_incalculable_taxes')) {
+ warn $error;
+ return { name => $name, amount => 0 };
+ } else {
+ return $error;
+ }
+}
+