diff --git a/stock_revaluation_fifo_lot/__init__.py b/stock_revaluation_fifo_lot/__init__.py
new file mode 100644
index 0000000..0650744
--- /dev/null
+++ b/stock_revaluation_fifo_lot/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/stock_revaluation_fifo_lot/__manifest__.py b/stock_revaluation_fifo_lot/__manifest__.py
new file mode 100644
index 0000000..0dd06ac
--- /dev/null
+++ b/stock_revaluation_fifo_lot/__manifest__.py
@@ -0,0 +1,15 @@
+# Copyright 2025 Quartile (https://www.quartile.co)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+{
+    "name": "Stock Revaluation FIFO Lot",
+    "version": "16.0.1.0.0",
+    "author": "Quartile",
+    "website": "https://www.quartile.co",
+    "category": "Warehouse",
+    "license": "AGPL-3",
+    "depends": ["stock_account"],
+    "data": [
+        "security/ir.model.access.csv",
+    ],
+    "installable": True,
+}
diff --git a/stock_revaluation_fifo_lot/models/__init__.py b/stock_revaluation_fifo_lot/models/__init__.py
new file mode 100644
index 0000000..f8149a2
--- /dev/null
+++ b/stock_revaluation_fifo_lot/models/__init__.py
@@ -0,0 +1,2 @@
+from . import stock_product_revaluation
+from . import stock_product_revaluation_line
diff --git a/stock_revaluation_fifo_lot/models/stock_product_revaluation.py b/stock_revaluation_fifo_lot/models/stock_product_revaluation.py
new file mode 100644
index 0000000..450ecae
--- /dev/null
+++ b/stock_revaluation_fifo_lot/models/stock_product_revaluation.py
@@ -0,0 +1,46 @@
+# Copyright 2025 Quartile (https://www.quartile.co)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class StockProductRevaluation(models.Model):
+    _name = 'stock.product.revaluation'
+    _description = 'Stock Product Revaluation'
+    _order = 'date desc'
+
+    name = fields.Char(string='Reference', required=True, copy=False, readonly=True,
+                       default=lambda self: self.env['ir.sequence'].next_by_code('stock.product.revaluation'))
+    date = fields.Date(string='Date', required=True, default=fields.Date.context_today)
+    journal_id = fields.Many2one('account.journal', string='Journal', required=True)
+    company_id = fields.Many2one('res.company', string='Company', required=True, default=lambda self: self.env.company)
+    line_ids = fields.One2many('stock.product.revaluation.line', 'revaluation_id', string='Revaluation Lines')
+    valuation_adjustment_ids = fields.One2many('stock.revaluation.adjustment.line', 'revaluation_id', string='Valuation Adjustments')
+    state = fields.Selection([
+        ('draft', 'Draft'),
+        ('posted', 'Posted'),
+        ('cancelled', 'Cancelled')
+    ], default='draft', tracking=True)
+
+    def action_post(self):
+        for record in self:
+            if not record.line_ids:
+                raise UserError("Please add at least one revaluation line.")
+
+            # Example placeholder for valuation calculation logic
+            for line in record.line_ids:
+                # Simulate retrieving old valuation and calculating new one
+                original_value = 100  # Placeholder
+                new_value = original_value + line.amount
+
+                self.env['stock.product.revaluation.valuation'].create({
+                    'revaluation_id': record.id,
+                    'product_id': line.product_id.id,
+                    'lot_id': line.lot_id.id,
+                    'original_value': original_value,
+                    'new_value': new_value,
+                    'difference': new_value - original_value,
+                })
+
+            record.state = 'posted'
diff --git a/stock_revaluation_fifo_lot/models/stock_product_revaluation_line.py b/stock_revaluation_fifo_lot/models/stock_product_revaluation_line.py
new file mode 100644
index 0000000..ac830fa
--- /dev/null
+++ b/stock_revaluation_fifo_lot/models/stock_product_revaluation_line.py
@@ -0,0 +1,15 @@
+# Copyright 2025 Quartile (https://www.quartile.co)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import fields, models
+
+
+class StockProductRevaluationLine(models.Model):
+    _name = 'stock.product.revaluation.line'
+    _description = 'Stock Product Revaluation Line'
+
+    revaluation_id = fields.Many2one('stock.product.revaluation', required=True, ondelete='cascade')
+    product_id = fields.Many2one('product.product', string='Product', required=True)
+    lot_id = fields.Many2one('stock.production.lot', string='Lot/Serial Number')
+    account_id = fields.Many2one('account.account', string='Account')
+    amount = fields.Float(string='Cost Adjustment')
diff --git a/stock_revaluation_fifo_lot/models/stock_revaluation_adjustment_line.py b/stock_revaluation_fifo_lot/models/stock_revaluation_adjustment_line.py
new file mode 100644
index 0000000..380f697
--- /dev/null
+++ b/stock_revaluation_fifo_lot/models/stock_revaluation_adjustment_line.py
@@ -0,0 +1,22 @@
+# Copyright 2025 Quartile (https://www.quartile.co)
+# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl).
+
+from odoo import api, fields, models
+from odoo.exceptions import UserError
+
+
+class StockRevaluationAdjustmentLine(models.Model):
+    _name = 'stock.product.revaluation.valuation'
+    _description = 'Stock Product Revaluation Valuation'
+
+    revaluation_id = fields.Many2one('stock.product.revaluation', required=True, ondelete='cascade')
+    product_id = fields.Many2one('product.product', string='Product')
+    lot_id = fields.Many2one('stock.production.lot', string='Lot/Serial Number')
+    original_value = fields.Float(string='Original Value')
+    new_value = fields.Float(string='New Value')
+    difference = fields.Float(string='Difference', compute='_compute_difference', store=True)
+
+    @api.depends('original_value', 'new_value')
+    def _compute_difference(self):
+        for rec in self:
+            rec.difference = rec.new_value - rec.original_value
\ No newline at end of file
diff --git a/stock_revaluation_fifo_lot/security/ir.model.access.csv b/stock_revaluation_fifo_lot/security/ir.model.access.csv
new file mode 100644
index 0000000..b5a94a6
--- /dev/null
+++ b/stock_revaluation_fifo_lot/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_stock_product_revaluation,stock.product.revaluation,model_stock_product_revaluationstock.group_stock_user,1,1,1,1
+access_stock_product_revaluation_line,stock.product.revaluation.line,model_stock_product_revaluation_linestock.group_stock_user,1,1,1,1
+access_stock_product_revaluation_valuation,stock.product.revaluation.valuation,model_stock_product_revaluation_valuationstock.group_stock_user,1,1,1,1