diff --git a/fusion-plating/fusion_plating_invoicing/__init__.py b/fusion-plating/fusion_plating_invoicing/__init__.py
new file mode 100644
index 00000000..3c90fa80
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/__init__.py
@@ -0,0 +1,6 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+
+from . import models
diff --git a/fusion-plating/fusion_plating_invoicing/__manifest__.py b/fusion-plating/fusion_plating_invoicing/__manifest__.py
new file mode 100644
index 00000000..233d44b1
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/__manifest__.py
@@ -0,0 +1,46 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+
+{
+    'name': 'Fusion Plating — Invoicing',
+    'version': '19.0.1.0.0',
+    'category': 'Manufacturing/Plating',
+    'summary': 'Invoice strategy engine with deposit, progress billing, net terms, COD/prepay, and account holds.',
+    'description': """
+Fusion Plating — Invoicing
+===========================
+
+Part of the Fusion Plating product family by Nexa Systems Inc.
+
+Provides:
+- Four invoice strategies: deposit, progress billing, net terms, COD/prepay
+- Customer-level default strategy with auto-fill on sale orders
+- Account hold flag on customers to block SO confirmation and invoicing
+- Automated deposit and full invoice creation on SO confirmation
+""",
+    'author': 'Nexa Systems Inc.',
+    'website': 'https://www.nexasystems.ca',
+    'maintainer': 'Nexa Systems Inc.',
+    'support': 'support@nexasystems.ca',
+    'license': 'OPL-1',
+    'price': 0.00,
+    'currency': 'CAD',
+    'depends': [
+        'fusion_plating_configurator',
+        'sale_management',
+        'account',
+    ],
+    'data': [
+        'security/fp_invoicing_security.xml',
+        'security/ir.model.access.csv',
+        'views/fp_invoice_strategy_views.xml',
+        'views/res_partner_views.xml',
+        'views/sale_order_views.xml',
+        'views/fp_invoicing_menu.xml',
+    ],
+    'installable': True,
+    'application': False,
+    'auto_install': False,
+}
diff --git a/fusion-plating/fusion_plating_invoicing/models/__init__.py b/fusion-plating/fusion_plating_invoicing/models/__init__.py
new file mode 100644
index 00000000..ec78ddf6
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/models/__init__.py
@@ -0,0 +1,9 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+
+from . import fp_invoice_strategy_default
+from . import res_partner
+from . import sale_order
+from . import account_move
diff --git a/fusion-plating/fusion_plating_invoicing/models/account_move.py b/fusion-plating/fusion_plating_invoicing/models/account_move.py
new file mode 100644
index 00000000..0c8fe912
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/models/account_move.py
@@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+# Placeholder — implemented in a later task.
diff --git a/fusion-plating/fusion_plating_invoicing/models/fp_invoice_strategy_default.py b/fusion-plating/fusion_plating_invoicing/models/fp_invoice_strategy_default.py
new file mode 100644
index 00000000..7bb1ddb7
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/models/fp_invoice_strategy_default.py
@@ -0,0 +1,39 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+
+from odoo import fields, models
+
+
+class FpInvoiceStrategyDefault(models.Model):
+    """Customer-level default invoice strategy.
+
+    When a new sale order is created for this customer, the invoice
+    strategy and deposit percentage auto-fill from this record.
+    """
+    _name = 'fp.invoice.strategy.default'
+    _description = 'Fusion Plating — Invoice Strategy Default'
+    _order = 'partner_id'
+
+    partner_id = fields.Many2one(
+        'res.partner', string='Customer', required=True, ondelete='cascade',
+        domain="[('customer_rank', '>', 0)]",
+    )
+    default_strategy = fields.Selection(
+        [('deposit', 'Deposit'), ('progress', 'Progress Billing'),
+         ('net_terms', 'Net Terms'), ('cod_prepay', 'COD / Prepay')],
+        string='Default Strategy', required=True,
+    )
+    default_deposit_percent = fields.Float(
+        string='Deposit %', help='Deposit percentage if strategy is Deposit (e.g. 50.0).',
+    )
+    payment_term_id = fields.Many2one(
+        'account.payment.term', string='Payment Terms',
+    )
+    notes = fields.Text(string='Notes')
+
+    _sql_constraints = [
+        ('fp_invoice_strategy_partner_uniq', 'unique(partner_id)',
+         'Only one invoice strategy default per customer.'),
+    ]
diff --git a/fusion-plating/fusion_plating_invoicing/models/res_partner.py b/fusion-plating/fusion_plating_invoicing/models/res_partner.py
new file mode 100644
index 00000000..a44206d2
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/models/res_partner.py
@@ -0,0 +1,22 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+
+from odoo import fields, models
+
+
+class ResPartner(models.Model):
+    _inherit = 'res.partner'
+
+    x_fc_account_hold = fields.Boolean(
+        string='Account Hold', tracking=True,
+        help='When active, blocks SO confirmation, invoicing, and shipping.',
+    )
+    x_fc_account_hold_reason = fields.Text(string='Hold Reason')
+    x_fc_account_hold_date = fields.Datetime(
+        string='Hold Date', help='When the hold was placed.',
+    )
+    x_fc_account_hold_by_id = fields.Many2one(
+        'res.users', string='Hold Placed By',
+    )
diff --git a/fusion-plating/fusion_plating_invoicing/models/sale_order.py b/fusion-plating/fusion_plating_invoicing/models/sale_order.py
new file mode 100644
index 00000000..0c8fe912
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/models/sale_order.py
@@ -0,0 +1,5 @@
+# -*- coding: utf-8 -*-
+# Copyright 2026 Nexa Systems Inc.
+# License OPL-1 (Odoo Proprietary License v1.0)
+# Part of the Fusion Plating product family.
+# Placeholder — implemented in a later task.
diff --git a/fusion-plating/fusion_plating_invoicing/security/fp_invoicing_security.xml b/fusion-plating/fusion_plating_invoicing/security/fp_invoicing_security.xml
new file mode 100644
index 00000000..f9c60e95
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/security/fp_invoicing_security.xml
@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright 2026 Nexa Systems Inc.
+    License OPL-1 (Odoo Proprietary License v1.0)
+    Part of the Fusion Plating product family.
+-->
+<odoo>
+
+    <record id="group_fp_accounting" model="res.groups">
+        <field name="name">Accounting</field>
+        <field name="sequence">58</field>
+        <field name="privilege_id" ref="fusion_plating.res_groups_privilege_fusion_plating"/>
+        <field name="implied_ids" eval="[(4, ref('fusion_plating.group_fusion_plating_supervisor'))]"/>
+        <field name="user_ids" eval="[(4, ref('base.user_root')), (4, ref('base.user_admin'))]"/>
+    </record>
+
+</odoo>
diff --git a/fusion-plating/fusion_plating_invoicing/security/ir.model.access.csv b/fusion-plating/fusion_plating_invoicing/security/ir.model.access.csv
new file mode 100644
index 00000000..6195f58a
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/security/ir.model.access.csv
@@ -0,0 +1,4 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_fp_invoice_strategy_operator,fp.invoice.strategy.default.operator,model_fp_invoice_strategy_default,fusion_plating.group_fusion_plating_operator,1,0,0,0
+access_fp_invoice_strategy_accounting,fp.invoice.strategy.default.accounting,model_fp_invoice_strategy_default,group_fp_accounting,1,1,1,0
+access_fp_invoice_strategy_manager,fp.invoice.strategy.default.manager,model_fp_invoice_strategy_default,fusion_plating.group_fusion_plating_manager,1,1,1,1
diff --git a/fusion-plating/fusion_plating_invoicing/static/description/icon.png b/fusion-plating/fusion_plating_invoicing/static/description/icon.png
new file mode 100644
index 00000000..a61b43b7
Binary files /dev/null and b/fusion-plating/fusion_plating_invoicing/static/description/icon.png differ
diff --git a/fusion-plating/fusion_plating_invoicing/views/fp_invoice_strategy_views.xml b/fusion-plating/fusion_plating_invoicing/views/fp_invoice_strategy_views.xml
new file mode 100644
index 00000000..e12f4390
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/views/fp_invoice_strategy_views.xml
@@ -0,0 +1,85 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright 2026 Nexa Systems Inc.
+    License OPL-1 (Odoo Proprietary License v1.0)
+    Part of the Fusion Plating product family.
+-->
+<odoo>
+
+    <!-- ===== Strategy Default List View ===== -->
+    <record id="view_fp_invoice_strategy_default_list" model="ir.ui.view">
+        <field name="name">fp.invoice.strategy.default.list</field>
+        <field name="model">fp.invoice.strategy.default</field>
+        <field name="arch" type="xml">
+            <list string="Invoice Strategy Defaults">
+                <field name="partner_id"/>
+                <field name="default_strategy"/>
+                <field name="default_deposit_percent"/>
+                <field name="payment_term_id"/>
+            </list>
+        </field>
+    </record>
+
+    <!-- ===== Strategy Default Form View ===== -->
+    <record id="view_fp_invoice_strategy_default_form" model="ir.ui.view">
+        <field name="name">fp.invoice.strategy.default.form</field>
+        <field name="model">fp.invoice.strategy.default</field>
+        <field name="arch" type="xml">
+            <form string="Invoice Strategy Default">
+                <sheet>
+                    <group>
+                        <group>
+                            <field name="partner_id"/>
+                            <field name="default_strategy"/>
+                            <field name="default_deposit_percent"
+                                   invisible="default_strategy != 'deposit'"/>
+                        </group>
+                        <group>
+                            <field name="payment_term_id"/>
+                        </group>
+                    </group>
+                    <group>
+                        <field name="notes" placeholder="Internal notes about this customer's billing preferences..."/>
+                    </group>
+                </sheet>
+            </form>
+        </field>
+    </record>
+
+    <!-- ===== Strategy Default Search View ===== -->
+    <record id="view_fp_invoice_strategy_default_search" model="ir.ui.view">
+        <field name="name">fp.invoice.strategy.default.search</field>
+        <field name="model">fp.invoice.strategy.default</field>
+        <field name="arch" type="xml">
+            <search>
+                <field name="partner_id"/>
+                <separator/>
+                <filter string="Deposit" name="deposit" domain="[('default_strategy','=','deposit')]"/>
+                <filter string="Progress Billing" name="progress" domain="[('default_strategy','=','progress')]"/>
+                <filter string="Net Terms" name="net_terms" domain="[('default_strategy','=','net_terms')]"/>
+                <filter string="COD / Prepay" name="cod_prepay" domain="[('default_strategy','=','cod_prepay')]"/>
+                <group>
+                    <filter string="Strategy" name="group_strategy" context="{'group_by':'default_strategy'}"/>
+                </group>
+            </search>
+        </field>
+    </record>
+
+    <!-- ===== Window Action ===== -->
+    <record id="action_fp_invoice_strategy_default" model="ir.actions.act_window">
+        <field name="name">Invoice Strategy Defaults</field>
+        <field name="res_model">fp.invoice.strategy.default</field>
+        <field name="view_mode">list,form</field>
+        <field name="search_view_id" ref="view_fp_invoice_strategy_default_search"/>
+        <field name="help" type="html">
+            <p class="o_view_nocontent_smiling_face">
+                No invoice strategy defaults defined yet
+            </p>
+            <p>
+                Set a default invoice strategy per customer so new sale orders
+                auto-fill with the correct billing method.
+            </p>
+        </field>
+    </record>
+
+</odoo>
diff --git a/fusion-plating/fusion_plating_invoicing/views/fp_invoicing_menu.xml b/fusion-plating/fusion_plating_invoicing/views/fp_invoicing_menu.xml
new file mode 100644
index 00000000..3859f8d4
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/views/fp_invoicing_menu.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright 2026 Nexa Systems Inc.
+    License OPL-1 (Odoo Proprietary License v1.0)
+    Part of the Fusion Plating product family.
+-->
+<odoo>
+</odoo>
diff --git a/fusion-plating/fusion_plating_invoicing/views/res_partner_views.xml b/fusion-plating/fusion_plating_invoicing/views/res_partner_views.xml
new file mode 100644
index 00000000..40b332fb
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/views/res_partner_views.xml
@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright 2026 Nexa Systems Inc.
+    License OPL-1 (Odoo Proprietary License v1.0)
+    Part of the Fusion Plating product family.
+-->
+<odoo>
+
+    <record id="view_partner_form_account_hold" model="ir.ui.view">
+        <field name="name">res.partner.form.fp.account.hold</field>
+        <field name="model">res.partner</field>
+        <field name="inherit_id" ref="base.view_partner_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//sheet" position="before">
+                <div class="alert alert-danger mb-0" role="alert"
+                     invisible="not x_fc_account_hold">
+                    <strong>Account Hold Active</strong> —
+                    <field name="x_fc_account_hold_reason" readonly="1" nolabel="1"/>
+                    <br/>
+                    <small>
+                        Placed by <field name="x_fc_account_hold_by_id" readonly="1" nolabel="1"/>
+                        on <field name="x_fc_account_hold_date" readonly="1" nolabel="1"/>
+                    </small>
+                </div>
+            </xpath>
+            <xpath expr="//notebook" position="inside">
+                <page string="Account Hold" name="account_hold_tab"
+                      groups="fusion_plating_invoicing.group_fp_accounting">
+                    <group>
+                        <group>
+                            <field name="x_fc_account_hold"/>
+                            <field name="x_fc_account_hold_reason"
+                                   invisible="not x_fc_account_hold"/>
+                        </group>
+                        <group>
+                            <field name="x_fc_account_hold_date"
+                                   invisible="not x_fc_account_hold"/>
+                            <field name="x_fc_account_hold_by_id"
+                                   invisible="not x_fc_account_hold"/>
+                        </group>
+                    </group>
+                </page>
+            </xpath>
+        </field>
+    </record>
+
+</odoo>
diff --git a/fusion-plating/fusion_plating_invoicing/views/sale_order_views.xml b/fusion-plating/fusion_plating_invoicing/views/sale_order_views.xml
new file mode 100644
index 00000000..3859f8d4
--- /dev/null
+++ b/fusion-plating/fusion_plating_invoicing/views/sale_order_views.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+    Copyright 2026 Nexa Systems Inc.
+    License OPL-1 (Odoo Proprietary License v1.0)
+    Part of the Fusion Plating product family.
+-->
+<odoo>
+</odoo>