diff --git a/contract_split/README.rst b/contract_split/README.rst
new file mode 100644
index 000000000..e69de29bb
diff --git a/contract_split/__init__.py b/contract_split/__init__.py
new file mode 100644
index 000000000..aed16e28f
--- /dev/null
+++ b/contract_split/__init__.py
@@ -0,0 +1,3 @@
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import models, wizard
diff --git a/contract_split/__manifest__.py b/contract_split/__manifest__.py
new file mode 100644
index 000000000..dede94c11
--- /dev/null
+++ b/contract_split/__manifest__.py
@@ -0,0 +1,20 @@
+# Copyright 2023 Damien Crier - Foodles
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+
+{
+    "name": "Contract Split",
+    "version": "14.0.1.0.0",
+    "category": "Sales",
+    "license": "AGPL-3",
+    "summary": "Split contract",
+    "depends": ["contract"],
+    "author": "Foodles, Odoo Community Association (OCA)",
+    "website": "https://github.com/OCA/contract",
+    "data": [
+        "security/ir.model.access.csv",
+        "wizard/wizard_split_contract.xml",
+        "views/contract.xml",
+    ],
+    "installable": True,
+}
diff --git a/contract_split/models/__init__.py b/contract_split/models/__init__.py
new file mode 100644
index 000000000..a51c4d1fb
--- /dev/null
+++ b/contract_split/models/__init__.py
@@ -0,0 +1,3 @@
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import contract
diff --git a/contract_split/models/contract.py b/contract_split/models/contract.py
new file mode 100644
index 000000000..26423f691
--- /dev/null
+++ b/contract_split/models/contract.py
@@ -0,0 +1,26 @@
+# Copyright 2023 Damien Crier - Foodles
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class Contract(models.Model):
+    _inherit = "contract.contract"
+
+    original_contract_id = fields.Many2one(
+        comodel_name="contract.contract",
+        readonly=True,
+    )
+
+
+class ContractLine(models.Model):
+    _inherit = "contract.line"
+
+    splitted_from_line_id = fields.Many2one(
+        comodel_name="contract.line",
+        readonly=True,
+    )
+    splitted_from_contract_id = fields.Many2one(
+        comodel_name="contract.contract",
+        readonly=True,
+    )
diff --git a/contract_split/readme/CONTRIBUTORS.rst b/contract_split/readme/CONTRIBUTORS.rst
new file mode 100644
index 000000000..8c134ee83
--- /dev/null
+++ b/contract_split/readme/CONTRIBUTORS.rst
@@ -0,0 +1,3 @@
+* `Foodles <https://www.foodles.co>`_:
+
+  * Damien Crier
diff --git a/contract_split/readme/DESCRIPTION.rst b/contract_split/readme/DESCRIPTION.rst
new file mode 100644
index 000000000..2e448fb1b
--- /dev/null
+++ b/contract_split/readme/DESCRIPTION.rst
@@ -0,0 +1 @@
+Adds a new button "Split" on a contract to be able to split lines across several contracts.
diff --git a/contract_split/readme/USAGE.rst b/contract_split/readme/USAGE.rst
new file mode 100644
index 000000000..c52036494
--- /dev/null
+++ b/contract_split/readme/USAGE.rst
@@ -0,0 +1 @@
+#. On a contract, hit the button "Split" and select which lines and/or quantities must be spitted to another contract.
diff --git a/contract_split/security/ir.model.access.csv b/contract_split/security/ir.model.access.csv
new file mode 100644
index 000000000..11ae43093
--- /dev/null
+++ b/contract_split/security/ir.model.access.csv
@@ -0,0 +1,3 @@
+id,name,model_id:id,group_id:id,perm_read,perm_write,perm_create,perm_unlink
+access_split_contract,access_split_contract,model_split_contract,base.group_user,1,1,1,1
+access_split_contract_line,access_split_contract_line,model_split_contract_line,base.group_user,1,1,1,1
diff --git a/contract_split/tests/__init__.py b/contract_split/tests/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/contract_split/tests/test_contract_split.py b/contract_split/tests/test_contract_split.py
new file mode 100644
index 000000000..02f21820b
--- /dev/null
+++ b/contract_split/tests/test_contract_split.py
@@ -0,0 +1,123 @@
+# Copyright 2023 Foodles (https://www.foodles.com/)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+from odoo.exceptions import ValidationError
+from odoo.tests import tagged
+
+from odoo.addons.contract.tests.test_contract import TestContractBase
+
+
+@tagged("post_install", "-at_install")
+class TestContractSplit(TestContractBase):
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+    def test_default_get(self):
+        wizard = (
+            self.env["split.contract"]
+            .with_context(active_id=self.contract3.id)
+            .create({})
+        )
+        self.assertEqual(self.contract3.partner_id.id, wizard.partner_id.id)
+        self.assertEqual(
+            self.contract3.invoice_partner_id.id, wizard.invoice_partner_id.id
+        )
+        self.assertEqual(self.contract3.id, wizard.main_contract_id.id)
+        self.assertEqual(3, len(wizard.split_line_ids.ids))
+
+    def test_no_split_because_no_qty_set(self):
+        wizard = (
+            self.env["split.contract"]
+            .with_context(active_id=self.contract3.id)
+            .create({})
+        )
+        wizard.partner_id = self.partner_2.id
+        initial_contracts_length = self.env["contract.contract"].search_count([])
+        # confirm wizard without setting to_split quantities
+        wizard.action_split_contract()
+        # nothing should have changed. No new contract created and original
+        # contract remains untouched
+        self.assertEqual(3, len(self.contract3.contract_line_ids.ids))
+        self.assertEqual(
+            initial_contracts_length, self.env["contract.contract"].search_count([])
+        )
+
+    def test_split_one_line_full_qty(self):
+        wizard = (
+            self.env["split.contract"]
+            .with_context(active_id=self.contract3.id)
+            .create({})
+        )
+        wizard.partner_id = self.partner_2.id
+        initial_contracts_length = self.env["contract.contract"].search_count([])
+        # set quantity to split in the wizard
+        wizard.split_line_ids[0].quantity_to_split = wizard.split_line_ids[
+            0
+        ].original_qty
+        # confirm wizard with setting to_split quantities
+        new_contract = wizard.action_split_contract()
+        # A new contract must have been created.
+        self.assertEqual(
+            initial_contracts_length + 1, self.env["contract.contract"].search_count([])
+        )
+        # new contract has now the splitted line
+        self.assertEqual(self.partner2.id, new_contract.partner_id.id)
+        self.assertEqual(1, len(new_contract.contract_line_ids.ids))
+        self.assertEqual(
+            self.contract3.id,
+            new_contract.contract_line_ids.mapped("splitted_from_contract_id"),
+        )
+        # Original contract has now only 2 lines (3 at the beginning)
+        self.assertEqual(2, len(self.contract3.contract_line_ids.ids))
+
+    def test_split_one_line_one_qty(self):
+        # Set a qty = 2 in one line of a contract
+        self.contract3.contract_line_ids.filtered(
+            lambda line: line.name == "Line"
+        ).quantity = 2
+        wizard = (
+            self.env["split.contract"]
+            .with_context(active_id=self.contract3.id)
+            .create({})
+        )
+        wizard.partner_id = self.partner_2.id
+        initial_contracts_length = self.env["contract.contract"].search_count([])
+        # set quantity to split in the wizard
+        wizard.split_line_ids.filtered(lambda l: l.name == "Line").quantity_to_split = 1
+        # confirm wizard with setting to_split quantities
+        new_contract = wizard.action_split_contract()
+        # A new contract must have been created.
+        self.assertEqual(
+            initial_contracts_length + 1, self.env["contract.contract"].search_count([])
+        )
+        # new contract has partner2 as partner_id
+        self.assertEqual(self.partner2.id, new_contract.partner_id.id)
+        # new contract has now the splitted line with a qty of one
+        self.assertEqual(1, len(new_contract.contract_line_ids.ids))
+        self.assertEqual(1, new_contract.contract_line_ids.quantity)
+        self.assertEqual(
+            self.contract3.id,
+            new_contract.contract_line_ids.mapped("splitted_from_contract_id"),
+        )
+        # Original contract still has 3 lines but with a qty=1 in the last line named "Line"
+        self.assertEqual(3, len(self.contract3.contract_line_ids.ids))
+        self.assertEqual(
+            1,
+            self.contract3.contract_line_ids.filtered(
+                lambda l: l.name == "Line"
+            ).quantity,
+        )
+
+    def test_split_with_more_quantity_should_raise_error(self):
+        wizard = (
+            self.env["split.contract"]
+            .with_context(active_id=self.contract3.id)
+            .create({})
+        )
+        # set quantity to split in the wizard
+        wizard.split_line_ids[0].quantity_to_split = (
+            wizard.split_line_ids[0].original_qty + 2
+        )
+        # confirm wizard with setting to_split quantities that should raise an error
+        with self.assertRaises(ValidationError):
+            wizard.action_split_contract()
diff --git a/contract_split/views/contract.xml b/contract_split/views/contract.xml
new file mode 100644
index 000000000..27a252444
--- /dev/null
+++ b/contract_split/views/contract.xml
@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <record id="view_contract_contract_form" model="ir.ui.view">
+        <field name="name">contract.contract.form</field>
+        <field name="model">contract.contract</field>
+        <field name="inherit_id" ref="contract.contract_contract_form_view" />
+        <field name="arch" type="xml">
+            <header position="inside">
+                <button
+                    name="%(contract_split.split_contract_wizard_action)d"
+                    type="action"
+                    string="Split"
+                    class="oe_highlight"
+                    context="{'default_contract_id': active_id}"
+                />
+            </header>
+        </field>
+    </record>
+</odoo>
diff --git a/contract_split/wizard/__init__.py b/contract_split/wizard/__init__.py
new file mode 100644
index 000000000..b6b9c16b1
--- /dev/null
+++ b/contract_split/wizard/__init__.py
@@ -0,0 +1,3 @@
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from . import wizard_split_contract
diff --git a/contract_split/wizard/wizard_split_contract.py b/contract_split/wizard/wizard_split_contract.py
new file mode 100644
index 000000000..d74da61fd
--- /dev/null
+++ b/contract_split/wizard/wizard_split_contract.py
@@ -0,0 +1,171 @@
+# Copyright 2023 Damien Crier - Foodles
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import _, api, fields, models
+from odoo.exceptions import ValidationError
+from odoo.tools import float_compare
+
+
+class SplitContract(models.TransientModel):
+    _name = "split.contract"
+
+    split_line_ids = fields.One2many(
+        comodel_name="split.contract.line", inverse_name="split_contract_id"
+    )
+    main_contract_id = fields.Many2one(comodel_name="contract.contract")
+    partner_id = fields.Many2one(comodel_name="res.partner")
+    invoice_partner_id = fields.Many2one(comodel_name="res.partner")
+
+    @api.model
+    def default_get(self, fields) -> dict:
+        vals = super().default_get(fields)
+        contract_id = self.env.context.get("active_id")
+        contract = self.env["contract.contract"].browse(contract_id)
+        vals.update(self._get_default_values_from_contract(contract))
+        return vals
+
+    def _get_default_values_from_contract(self, contract) -> dict:
+        return {
+            "main_contract_id": contract.id,
+            "partner_id": contract.partner_id.id,
+            "invoice_partner_id": contract.invoice_partner_id.id,
+            "split_line_ids": [
+                (0, 0, self._get_default_split_line_values(line))
+                for line in contract.contract_line_ids
+            ],
+        }
+
+    def _get_default_split_line_values(self, line) -> list:
+        return {
+            "original_contract_line_id": line.id,
+        }
+
+    def _get_contract_name(self):
+        return self.main_contract_id.name
+
+    def _get_values_create_contract(self):
+        self.ensure_one()
+        return {
+            "name": self._get_contract_name(),
+            "partner_id": self.partner_id.id,
+            "invoice_partner_id": self.invoice_partner_id.id,
+            "original_contract_id": self.main_contract_id.id,
+            "line_recurrence": True,
+        }
+
+    def action_split_contract(self):
+        """
+        If lines exists in the wizard, create a new contract <CONTRACT>
+        For all lines that are kept in the wizard lines :
+            - check if it needs to be split or only moved to the new contract <CONTRACT>
+                - if original_qty == qty_to_split: just move the contract_id
+                - if original_qty < qty_to_split: split the line
+                    (eg: duplicate and change qties)
+                - if qty_to_split == 0: do nothing
+        """
+        self.ensure_one()
+        if self.split_line_ids and any(
+            line.quantity_to_split for line in self.split_line_ids
+        ):
+            new_contract = self.env["contract.contract"].create(
+                self._get_values_create_contract()
+            )
+            # TODO: play onchange on partner_id. use onchange_helper from OCA ?
+            for line in self.split_line_ids:
+                original_line = line.original_contract_line_id
+                if not line.quantity_to_split:
+                    continue
+                if (
+                    float_compare(
+                        line.quantity_to_split, line.original_qty, precision_digits=2
+                    )
+                    == 0
+                ):
+                    # only move because new_qty = original_qty
+                    original_line.write(
+                        line._get_write_values_when_moving_line(new_contract)
+                    )
+                elif (
+                    float_compare(
+                        line.quantity_to_split, line.original_qty, precision_digits=2
+                    )
+                    < 0
+                ):
+                    # need to split and move
+                    new_line = original_line.copy()
+                    new_line.write(
+                        line._get_write_values_when_splitting_and_moving_line(
+                            new_contract, line
+                        )
+                    )
+
+                    original_line.quantity -= new_line.quantity
+            return new_contract
+        return True
+
+
+class SplitContractLine(models.TransientModel):
+    _name = "split.contract.line"
+
+    split_contract_id = fields.Many2one(comodel_name="split.contract")
+    original_contract_line_id = fields.Many2one(comodel_name="contract.line")
+    original_qty = fields.Float(
+        related="original_contract_line_id.quantity",
+        readonly=True,
+        store=False,
+    )
+    original_contract_id = fields.Many2one(
+        comodel_name="contract.contract",
+        related="original_contract_line_id.contract_id",
+        readonly=True,
+        store=False,
+    )
+    product_id = fields.Many2one(
+        comodel_name="product.product",
+        related="original_contract_line_id.product_id",
+        readonly=True,
+        store=False,
+    )
+    uom_id = fields.Many2one(
+        comodel_name="uom.uom",
+        related="original_contract_line_id.uom_id",
+        readonly=True,
+        store=False,
+    )
+    name = fields.Text(
+        comodel_name="product.product",
+        related="original_contract_line_id.name",
+        readonly=True,
+    )
+    quantity_to_split = fields.Float(string="Quantity to move", default=0)
+
+    @api.constrains("quantity_to_split")
+    def _check_quantity_to_move(self):
+        for rec in self:
+            if (
+                float_compare(
+                    rec.quantity_to_split, rec.original_qty, precision_digits=2
+                )
+                > 0
+            ):
+                # we try to move more qty than present in the initial contract line
+                raise ValidationError(
+                    _(
+                        "You cannot split more quantities than the "
+                        "original quantity of the initial contract line."
+                    )
+                )
+
+    def _get_write_values_when_moving_line(self, new_contract):
+        return {
+            "contract_id": new_contract.id,
+            "splitted_from_contract_id": self.original_contract_id.id,
+        }
+
+    def _get_write_values_when_splitting_and_moving_line(self, new_contract, line):
+        return {
+            "contract_id": new_contract.id,
+            "splitted_from_contract_id": self.original_contract_id.id,
+            "splitted_from_line_id": self.original_contract_line_id.id,
+            "quantity": line.quantity_to_split,
+        }
diff --git a/contract_split/wizard/wizard_split_contract.xml b/contract_split/wizard/wizard_split_contract.xml
new file mode 100644
index 000000000..175a75685
--- /dev/null
+++ b/contract_split/wizard/wizard_split_contract.xml
@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<odoo>
+    <record id="view_split_contract_form" model="ir.ui.view">
+        <field name="name">split.contract.form</field>
+        <field name="model">split.contract</field>
+        <field name="arch" type="xml">
+            <form>
+                <group>
+                    <field name="main_contract_id" />
+                    <field name="partner_id" />
+                    <field name="invoice_partner_id" />
+                </group>
+                <notebook>
+                    <page name="lines" string="Lines">
+                        <field name="split_line_ids" nolabel="1">
+                            <tree>
+                                <field name="original_contract_line_id" />
+                                <field name="product_id" />
+                                <field name="name" />
+                                <field name="original_qty" />
+                                <field name="uom_id" />
+                                <field name="quantity_to_split" />
+                            </tree>
+                        </field>
+                    </page>
+                </notebook>
+                <footer>
+                    <button
+                        string="Split"
+                        name="action_split_contract"
+                        type="object"
+                        class="btn-primary"
+                    />
+                    <button string="Cancel" class="btn-secondary" special="cancel" />
+                </footer>
+            </form>
+        </field>
+    </record>
+
+    <record id="split_contract_wizard_action" model="ir.actions.act_window">
+            <field name="name">Split Contract</field>
+            <field name="res_model">split.contract</field>
+            <field name="view_mode">form</field>
+            <field name="target">new</field>
+        </record>
+</odoo>
diff --git a/setup/contract_split/odoo/addons/contract_split b/setup/contract_split/odoo/addons/contract_split
new file mode 120000
index 000000000..8ccc6624e
--- /dev/null
+++ b/setup/contract_split/odoo/addons/contract_split
@@ -0,0 +1 @@
+../../../../contract_split
\ No newline at end of file
diff --git a/setup/contract_split/setup.py b/setup/contract_split/setup.py
new file mode 100644
index 000000000..28c57bb64
--- /dev/null
+++ b/setup/contract_split/setup.py
@@ -0,0 +1,6 @@
+import setuptools
+
+setuptools.setup(
+    setup_requires=['setuptools-odoo'],
+    odoo_addon=True,
+)