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[ADD]:Reverse charge mechanism in GST

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This commit is contained in:
Haresh Chavda 2018-11-19 14:24:56 +05:30
parent d4382431bd
commit e9980155cb
8 changed files with 179 additions and 18 deletions
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1
addons/l10n_in_gst/__manifest__.py
View File

@ -17,6 +17,7 @@
'security/ir.model.access.csv',
'data/product_uom_data.xml',
'data/note_issue_reason_data.xml',
'data/res_company_data.xml',
'wizard/account_invoice_refund_view.xml',
'views/product_uom_view.xml',
'views/res_partner_view.xml',

14
addons/l10n_in_gst/data/res_company_data.xml Normal file
View File

@ -0,0 +1,14 @@
<?xml version="1.0" encoding="utf-8"?>
<flectra noupdate="1">
<record id="in_gst_rc_account" model="account.account">
<field name="code">205311</field>
<field name="name">Reverse Charge(GST)</field>
<field name="user_type_id" ref="account.data_account_type_current_liabilities"/>
</record>
<record id="base.main_company" model="res.company">
<field name="rc_gst_account_id" ref="in_gst_rc_account"/>
</record>
</flectra>

118
addons/l10n_in_gst/models/account_invoice.py
View File

@ -52,6 +52,88 @@ class AccountInvoice(models.Model):
readonly=True,
states={
'draft': [('readonly', False)]})
reverse_charge = fields.Boolean(
'Reverse Charge', readonly=True,
states={'draft': [('readonly', False)]})
reverse_tax_line_ids = fields.One2many(
'reverse.account.invoice.tax', 'invoice_id', string='Tax Lines',
readonly=True, states={'draft': [('readonly', False)]}, copy=False)
@api.one
@api.depends(
'state', 'currency_id', 'invoice_line_ids.price_subtotal',
'move_id.line_ids.amount_residual',
'move_id.line_ids.currency_id')
def _compute_residual(self):
super(AccountInvoice, self)._compute_residual()
sign = self.type in ['in_refund', 'out_refund'] and -1 or 1
if self.reverse_charge:
residual = self.residual - self.amount_tax
self.residual_signed = abs(residual) * sign
self.residual = abs(residual)
@api.multi
def action_invoice_open(self):
if not self.reverse_charge:
return super(AccountInvoice, self).action_invoice_open()
list_data = []
account_tax_obj = self.env['account.tax']
custom_amount = 0.0
self.reverse_tax_line_ids = [[6, 0, []]]
for tax_line in self.tax_line_ids:
tax_id = account_tax_obj.search([('name', '=', tax_line.name)])
account_id = tax_id.account_id.id
if self.partner_id.vat:
account_id = tax_line.account_id.id
if not account_id:
account_id = tax_line.account_id.id
list_data.append((0, 0, {
'name': tax_line.name,
'partner_id':
self.partner_id.parent_id.id or self.partner_id.id,
'account_id': account_id,
'debit': tax_line.amount_total,
'move_id': False,
'invoice_id': self.id,
'tax_line_id': tax_id,
'quantity': 1,
}
))
total_tax_amount = self.amount_tax
reverse_list_data = []
for tax_line_id in self.tax_line_ids:
reverse_list_data.append((0, 0, tax_line_id.read()[0]))
if reverse_list_data:
self.update({'reverse_tax_line_ids': reverse_list_data})
for line_id in self.invoice_line_ids:
line_id.reverse_invoice_line_tax_ids = \
[[6, 0, line_id.invoice_line_tax_ids.ids]]
self.invoice_line_ids.update({'invoice_line_tax_ids': [[6, 0, []]]})
self.update({'tax_line_ids': [[6, 0, []]], 'amount_tax': 0.0})
res = super(AccountInvoice, self).action_invoice_open()
for move_line_id in list_data:
move_line_id[2].update({'move_id': self.move_id.id})
list_data.append(
(0, 0, self.get_move_line_vals(total_tax_amount - custom_amount)))
self.move_id.state = 'draft'
self.move_id.line_ids = list_data
self.move_id.post()
return res
@api.multi
def get_move_line_vals(self, credit):
return {
'name': '/',
'partner_id': self.partner_id.parent_id.id or self.partner_id.id,
'account_id': self.company_id.rc_gst_account_id.id,
'credit': credit,
'move_id': self.move_id.id,
'invoice_id': self.id,
'quantity': 1,
}
@api.onchange('partner_id', 'company_id')
def _onchange_partner_id(self):
@ -60,12 +142,31 @@ class AccountInvoice(models.Model):
self.partner_id.partner_location = \
self.partner_id._get_partner_location_details(self.company_id)
@api.onchange('fiscal_position_id')
def _onchange_fiscal_position_id(self):
""" Onchange of Fiscal Position update tax values in invoice lines. """
for line in self.invoice_line_ids:
line._set_taxes()
if self.fiscal_position_id:
for line in self.invoice_line_ids:
line._set_taxes()
@api.multi
@api.returns('self')
def refund(self, date_invoice=None,
date=None, description=None, journal_id=None):
result = super(AccountInvoice, self).refund(
date_invoice=date_invoice, date=date,
description=description, journal_id=journal_id)
if result.refund_invoice_id.type == 'in_invoice':
result.write(
{'reverse_charge': result.refund_invoice_id.reverse_charge})
if result.type == 'in_refund' \
and result.refund_invoice_id.reverse_charge:
for index, line_id in enumerate(result.invoice_line_ids):
line_id.invoice_line_tax_ids = [[
6, 0, result.refund_invoice_id.invoice_line_ids[
index].reverse_invoice_line_tax_ids.ids]]
result._onchange_invoice_line_ids()
return result
@api.multi
def action_move_create(self):
@ -128,3 +229,14 @@ class AccountInvoice(models.Model):
'gst_type': invoice.gst_type,
})
return result
class ReverseAccountInvoiceTax(models.Model):
_inherit = 'account.invoice.tax'
_name = 'reverse.account.invoice.tax'
class AccountInvoiceLine(models.Model):
_inherit = "account.invoice.line"
reverse_invoice_line_tax_ids = fields.Many2many(
'account.tax', string='Taxes', copy=False)

1
addons/l10n_in_gst/models/res_company.py
View File

@ -20,6 +20,7 @@ class Company(models.Model):
default=time.strftime('2017-07-01'))
company_b2c_limit_line = fields.One2many('res.company.b2c.limit',
'company_id', string='B2C Limit')
rc_gst_account_id = fields.Many2one('account.account', 'Reverse Charge')
def onchange_state(self, gst_type, vat, state):
result = {'vat': '', 'country_id': False}

35
addons/l10n_in_gst/report/gst_report.py
View File

@ -135,7 +135,6 @@ class GSTR1Report(models.AbstractModel):
('gst_invoice', '=', 'b2b'), ('vat', '!=', False)]
if post.get('gst_invoice') == 'cdnur':
final_inv_domain = common_domain + refund_domain + cdnur_domain
final_invoice_ids = acc_invoice.search(final_inv_domain)
for inv in final_invoice_ids:
inv_data_list = []
@ -159,15 +158,17 @@ class GSTR1Report(models.AbstractModel):
for line in inv.invoice_line_ids:
cess_amount = igst_amount = cgst_amount = sgst_amount = 0.0
if line.invoice_line_tax_ids:
if inv.reverse_charge:
tax_lines = line.reverse_invoice_line_tax_ids
else:
tax_lines = line.invoice_line_tax_ids
if tax_lines:
price_unit = line.price_unit * (
1 - (line.discount or 0.0) / 100.0)
taxes = line.invoice_line_tax_ids.compute_all(
taxes = tax_lines.compute_all(
price_unit, line.invoice_id.currency_id,
line.quantity, line.product_id,
line.invoice_id.partner_id)['taxes']
for tax_data in taxes:
tax = acc_tax.browse(tax_data['id'])
if tax.tax_group_id.name == 'Cess':
@ -185,7 +186,7 @@ class GSTR1Report(models.AbstractModel):
'amount'] > 0):
sgst_amount += tax_data['amount']
for tax in line.invoice_line_tax_ids:
for tax in tax_lines:
rate = 0
if tax.id not in tax_list:
if tax.tax_group_id.name == 'IGST' \
@ -213,7 +214,6 @@ class GSTR1Report(models.AbstractModel):
line_data = self._prepare_taxable_line_data(
line, inv, igst_amount, cgst_amount,
sgst_amount, cess_amount, rate, tax)
if post.get('gst_invoice') in \
['b2b', 'b2cl', 'b2cs', 'b2bur']:
line_data.update({
@ -241,7 +241,7 @@ class GSTR1Report(models.AbstractModel):
if post.get('gst_invoice') == 'b2b':
line_data.update({
'inv_type': 'Regular',
'reverse_charge': 'N',
'reverse_charge': 'Y' if inv.reverse_charge else 'N',
})
if post.get('gst_invoice') == 'b2bur':
supply_type = dict(inv.fields_get(
@ -376,10 +376,14 @@ class GSTR1Report(models.AbstractModel):
invoice_domain)
for line in hsn_invoice_line_ids:
igst_amount = cgst_amount = sgst_amount = cess_amount = 0.0
if line.invoice_line_tax_ids:
if line.invoice_id.reverse_charge:
tax_lines = line.reverse_invoice_line_tax_ids
else:
tax_lines = line.invoice_line_tax_ids
if tax_lines:
price_unit = line.price_unit * (
1 - (line.discount or 0.0) / 100.0)
taxes = line.invoice_line_tax_ids.compute_all(
taxes = tax_lines.compute_all(
price_unit, line.invoice_id.currency_id,
line.quantity, line.product_id,
line.invoice_id.partner_id)['taxes']
@ -446,10 +450,11 @@ class GSTR1Report(models.AbstractModel):
no_of_recepient = 0
for inv in result:
taxable_value_total += float(inv['taxable_value'])
igst_amount += float(inv['igst'])
sgst_amount += float(inv['sgst'])
cgst_amount += float(inv['cgst'])
if inv.get('reverse_charge') != 'Y':
taxable_value_total += float(inv['taxable_value'])
igst_amount += float(inv['igst'])
sgst_amount += float(inv['sgst'])
cgst_amount += float(inv['cgst'])
if post.get('gst_invoice') == 'b2b':
if inv['reverse_charge'] == 'N':
@ -473,7 +478,7 @@ class GSTR1Report(models.AbstractModel):
invoice_value = 0.0
for invoice_id in invoices_list:
ids = self.env['account.invoice'].search(
[('number', '=', invoice_id)])
[('number', '=', invoice_id), ('reverse_charge', '=', False)])
invoice_value += ids.amount_total
summary.update({
"no_of_invoices": no_of_invoices,

1
addons/l10n_in_gst/security/ir.model.access.csv
View File

@ -3,3 +3,4 @@ access_note_issue_reason_all,access_note_issue_reason_all,model_note_issue_reaso
access_note_issue_reason,access_note_issue_reason,model_note_issue_reason,,1,0,0,0
access_res_company_b2c_limit_all,access_res_company_b2c_limit_all,model_res_company_b2c_limit,base.group_system,1,1,1,1
access_res_company_b2c_limit,access_res_company_b2c_limit,model_res_company_b2c_limit,,1,0,0,0
access_reverse_account_invoice_tax,access_reverse_account_invoice_tax,model_reverse_account_invoice_tax,,1,0,0,0
1 id name model_id:id group_id:id perm_read perm_write perm_create perm_unlink
3 access_note_issue_reason access_note_issue_reason model_note_issue_reason 1 0 0 0
4 access_res_company_b2c_limit_all access_res_company_b2c_limit_all model_res_company_b2c_limit base.group_system 1 1 1 1
5 access_res_company_b2c_limit access_res_company_b2c_limit model_res_company_b2c_limit 1 0 0 0
6 access_reverse_account_invoice_tax access_reverse_account_invoice_tax model_reverse_account_invoice_tax 1 0 0 0

24
addons/l10n_in_gst/views/account_invoice_view.xml
View File

@ -77,6 +77,9 @@
<field name="vat" readonly="1"
attrs="{'invisible': [('state', 'not in', ('open', 'paid'))]}"/>
</xpath>
<xpath expr="//field[@name='date_due']" position="after">
<field name="reverse_charge" attrs="{'invisible': [('type', 'in', ['out_invoice', 'out_refund'])]}"/>
</xpath>
<xpath expr="//field[@name='partner_id']" position="after">
<field name="e_commerce_partner_id"
attrs="{'readonly': [('state', '!=', 'draft')]}"
@ -85,6 +88,14 @@
<xpath expr="//field[@name='tax_line_ids']" position="attributes">
<attribute name="attrs">{'invisible': [('tax_line_ids', '=', [])]}</attribute>
</xpath>
<xpath expr="//field/tree/field[@name='invoice_line_tax_ids']" position="after">
<field name="reverse_invoice_line_tax_ids" widget="many2many_tags" invisible="1"/>
</xpath>
<xpath expr="//page[@name='other_info']" position="after">
<page string="Reverse Charge" name="reverse_charge_info" attrs="{'invisible': [('reverse_charge', '=', False)]}">
<field name="reverse_tax_line_ids" nolabel="1"/>
</page>
</xpath>
</field>
</record>
@ -112,5 +123,18 @@
<field name="name">Nature of Transaction</field>
</record>
<record id="view_in_reverse_invoice_tax_tree" model="ir.ui.view">
<field name="name">in_reverse.account.invoice.tax.tree</field>
<field name="model">reverse.account.invoice.tax</field>
<field name="arch" type="xml">
<tree string="Reverse Invoice Taxes">
<field name="name"/>
<field name="account_id" groups="account.group_account_user"/>
<field name="base"/>
<field name="amount_total"/>
</tree>
</field>
</record>
</flectra>

3
addons/l10n_in_gst/views/res_company_view.xml
View File

@ -18,6 +18,9 @@
<separator string="B2C Limit"/>
<field name="company_b2c_limit_line"/>
</xpath>
<xpath expr="//field[@name='report_header']" position="after">
<field name="rc_gst_account_id" required="1"/>
</xpath>
</field>
</record>