diff --git a/addons/om_fiscal_year/models/account_fiscal_year.py b/addons/om_fiscal_year/models/account_fiscal_year.py
new file mode 100644
index 0000000..8bbb165
--- /dev/null
+++ b/addons/om_fiscal_year/models/account_fiscal_year.py
@@ -0,0 +1,48 @@
+from odoo import api, fields, models, _
+from odoo.exceptions import ValidationError
+
+
+class AccountFiscalYear(models.Model):
+    _name = 'account.fiscal.year'
+    _description = 'Fiscal Year'
+
+    name = fields.Char(string='Name', required=True)
+    date_from = fields.Date(string='Start Date', required=True,
+        help='Start Date, included in the fiscal year.')
+    date_to = fields.Date(string='End Date', required=True,
+        help='Ending Date, included in the fiscal year.')
+    company_id = fields.Many2one('res.company', string='Company', required=True,
+        default=lambda self: self.env.company)
+
+    @api.constrains('date_from', 'date_to', 'company_id')
+    def _check_dates(self):
+        '''
+        Check interleaving between fiscal years.
+        There are 3 cases to consider:
+
+        s1   s2   e1   e2
+        (    [----)----]
+
+        s2   s1   e2   e1
+        [----(----]    )
+
+        s1   s2   e2   e1
+        (    [----]    )
+        '''
+        for fy in self:
+            # Starting date must be prior to the ending date
+            date_from = fy.date_from
+            date_to = fy.date_to
+            if date_to < date_from:
+                raise ValidationError(_('The ending date must not be prior to the starting date.'))
+            domain = [
+                ('id', '!=', fy.id),
+                ('company_id', '=', fy.company_id.id),
+                '|', '|',
+                '&', ('date_from', '<=', fy.date_from), ('date_to', '>=', fy.date_from),
+                '&', ('date_from', '<=', fy.date_to), ('date_to', '>=', fy.date_to),
+                '&', ('date_from', '<=', fy.date_from), ('date_to', '>=', fy.date_to),
+            ]
+            if self.search_count(domain) > 0:
+                raise ValidationError(_('You can not have an overlap between two fiscal years, '
+                                        'please correct the start and/or end dates of your fiscal years.'))