6 use FS::Record qw(qsearch qsearchs);
12 FS::TaxEngine - Base class for tax calculation engines.
16 1. At the start of creating an invoice, create an FS::TaxEngine object.
17 2. Each time a sale item is added to the invoice, call C<add_sale> on the
20 - If the TaxEngine is "batch" style (Billsoft):
21 3. Set the "pending" flag on the invoice.
22 4. Insert the invoice and its line items.
23 5. After creating all invoices for the day, call
24 FS::TaxEngine::process_tax_batch. This will create the tax items for
25 all of the pending invoices, clear the "pending" flag, and call
26 C<collect> on each of the billed customers.
28 - If not (the internal tax system, CCH):
29 3. After adding all sale items, call C<calculate_taxes> on the TaxEngine to
30 produce a list of tax line items.
31 4. Append the tax line items to the invoice.
32 5. Insert the invoice.
38 =item new 'cust_main' => CUST_MAIN, 'invoice_time' => TIME, OPTIONS...
40 Creates an L<FS::TaxEngine> object. The subclass will be chosen by the
41 'enable_taxproducts' configuration setting.
43 CUST_MAIN and TIME are required. OPTIONS can include "cancel" => 1 to
44 indicate that the package is being billed on cancellation.
51 if ($class eq 'FS::TaxEngine') {
52 my $conf = FS::Conf->new;
53 my $subclass = $conf->config('enable_taxproducts') || 'internal';
54 $class .= "::$subclass";
57 die "couldn't load $class: $@\n" if $@;
59 my $self = { items => [], taxes => {}, %opt };
65 Returns a hashref of metadata about this tax method, including:
66 - batch: whether this is a batch-style engine (requires different usage)
67 - override: whether this engine uses tax overrides
68 - manual_tax_location: whether this engine requires the user to select a "tax
69 location" separate from the address/city/state/zip fields
70 - rate_table: the table that stores the tax rates
71 (the 'taxline' method of that class will be used to calculate line-item
73 - link_table: the table that links L<FS::cust_bill_pkg> records for taxes
74 to the C<rate_table> entry that generated them, and to the item they
83 =item add_sale CUST_BILL_PKG
85 Adds the CUST_BILL_PKG object as a taxable sale on this invoice.
87 =item calculate_taxes CUST_BILL
89 Calculates the taxes on the taxable sales and returns a list of
90 L<FS::cust_bill_pkg> objects to add to the invoice. There is a base
91 implementation of this, which calls the C<taxline> method to calculate
98 my $conf = FS::Conf->new;
100 my $cust_bill = shift;
103 # keys are tax names (as printed on invoices / itemdesc )
104 # values are arrayrefs of taxlines
108 # values are (cumulative) amounts
112 # values are arrayrefs of cust_tax_exempt_pkg objects
115 # For each distinct tax rate definition, calculate the tax and exemptions.
116 foreach my $taxnum ( keys %{ $self->{taxes} } ) {
118 my $taxables = $self->{taxes}{$taxnum};
119 my $tax_object = shift @$taxables;
120 # $tax_object is a cust_main_county or tax_rate
121 # (with billpkgnum, pkgnum, locationnum set)
122 # the rest of @{ $taxlisthash->{$tax} } is cust_bill_pkg component objects
123 # (setup, recurring, usage classes)
125 my $taxline = $self->taxline('tax' => $tax_object, 'sales' => $taxables);
126 # taxline methods are now required to return real line items
127 # with their link records
128 die $taxline unless ref($taxline);
130 push @{ $taxname{ $taxline->itemdesc } }, $taxline;
134 my $link_table = $self->info->{link_table};
135 # For each distinct tax name (the values set as $taxline->itemdesc),
136 # create a consolidated tax item with the total amount and all the links
137 # of all tax items that share that name.
138 foreach my $taxname ( keys %taxname ) {
140 my $tax_cust_bill_pkg = FS::cust_bill_pkg->new({
141 'invnum' => $cust_bill->invnum,
146 'itemdesc' => $taxname,
147 $link_table => \@tax_links,
151 warn "adding $taxname\n" if $DEBUG > 1;
153 foreach my $taxitem ( @{ $taxname{$taxname} } ) {
154 # then we need to transfer the amount and the links from the
155 # line item to the new one we're creating.
156 $tax_total += $taxitem->setup;
157 foreach my $link ( @{ $taxitem->get($link_table) } ) {
158 $link->set('tax_cust_bill_pkg', $tax_cust_bill_pkg);
159 push @tax_links, $link;
162 next unless $tax_total;
164 # we should really neverround this up...I guess it's okay if taxline
165 # already returns amounts with 2 decimal places
166 $tax_total = sprintf('%.2f', $tax_total );
167 $tax_cust_bill_pkg->set('setup', $tax_total);
169 my $pkg_category = qsearchs( 'pkg_category', { 'categoryname' => $taxname,
175 if ( $pkg_category and
176 $conf->config('invoice_latexsummary') ||
177 $conf->config('invoice_htmlsummary')
180 my %hash = ( 'section' => $pkg_category->categoryname );
181 push @display, new FS::cust_bill_pkg_display { type => 'S', %hash };
183 $tax_cust_bill_pkg->set('display', \@display);
185 push @tax_line_items, $tax_cust_bill_pkg;
193 =item cust_tax_locations LOCATION
195 Given an L<FS::cust_location> object (or a hash of location fields),
196 returns a list of all tax jurisdiction locations that could possibly
197 match it. This is meant for interactive use: the location editing UI
198 displays the candidate locations to the user so they can choose the
203 sub cust_tax_locations {
205 } # shouldn't even get called unless info->{manual_tax_location} is true
207 =item add_taxproduct DESCRIPTION
209 If the module allows manually adding tax products (categories of taxable
210 items/services), this method will be called to do it. (If not, the UI in
211 browse/part_pkg_taxproduct/* should prevent adding an unlisted tax product.
212 That is the default behavior, so by default this method simply fails.)
214 DESCRIPTION is the contents of the taxproduct_description form input, which
215 will normally be filled in by browse/part_pkg_taxproduct/*.
217 Must return the newly inserted part_pkg_taxproduct object on success, or
224 "$class does not allow manually adding taxproducts";
227 =item transfer_batch (batch-style only)
229 Submits the pending transaction batch for processing, receives the
230 results, and appends the calculated taxes to all invoices that were
231 included in the batch. Then clears their pending flags, and queues
232 a job to run C<FS::cust_main::Billing::collect> on each affected