- and $taxable_charged > 0 ) {
- #my ($mon,$year) = (localtime($cust_bill_pkg->sdate) )[4,5];
- my ($mon,$year) =
- (localtime( $cust_bill_pkg->sdate || $invoice_date ) )[4,5];
- $mon++;
- $year += 1900;
- my $freq = $cust_bill_pkg->freq;
- unless ($freq) {
- $freq = $part_pkg->freq || 1; # less trustworthy fallback
- }
- if ( $freq !~ /(\d+)$/ ) {
- $dbh->rollback if $oldAutoCommit;
- return "daily/weekly package definitions not (yet?)".
- " compatible with monthly tax exemptions";
+ and $taxable_charged > 0
+ and $cust_main ) {
+
+ # XXX monthly exemptions currently don't work on quotations
+
+ # If the billing period extends across multiple calendar months,
+ # there may be several months of exemption available.
+ my $sdate = $cust_bill_pkg->sdate || $invoice_time;
+ my $start_month = (localtime($sdate))[4] + 1;
+ my $start_year = (localtime($sdate))[5] + 1900;
+ my $edate = $cust_bill_pkg->edate || $invoice_time;
+ my $end_month = (localtime($edate))[4] + 1;
+ my $end_year = (localtime($edate))[5] + 1900;
+
+ # If the partial last month + partial first month <= one month,
+ # don't use the exemption in the last month
+ # (unless the last month is also the first month, e.g. one-time
+ # charges)
+ if ( (localtime($sdate))[3] >= (localtime($edate))[3]
+ and ($start_month != $end_month or $start_year != $end_year)
+ ) {
+ $end_month--;
+ if ( $end_month == 0 ) {
+ $end_year--;
+ $end_month = 12;
+ }