- my $taxkey = $part->get_taxkey(date => $self->deliverydate // $self->transdate, is_sales => $data->{is_sales}, taxzone => $self->taxzone_id);
+ my $taxkey = $part->get_taxkey(date => $self->effective_tax_point, is_sales => $data->{is_sales}, taxzone => $self->taxzone_id);