diff --git a/osi_avatax_rounding_fix/__init__.py b/osi_avatax_rounding_fix/__init__.py
new file mode 100644
index 000000000..0650744f6
--- /dev/null
+++ b/osi_avatax_rounding_fix/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/osi_avatax_rounding_fix/__manifest__.py b/osi_avatax_rounding_fix/__manifest__.py
new file mode 100644
index 000000000..a686498da
--- /dev/null
+++ b/osi_avatax_rounding_fix/__manifest__.py
@@ -0,0 +1,18 @@
+# -*- coding: utf-8 -*-
+
+{ # noqa
+    "name": "Proslat Accounting Enhancement",
+    "summary": "Proslat Accounting Enhancement",
+    "version": "17.0.1.0.0",
+    "author": "Open Source Integrators",
+    "category": "Accounting",
+    "depends": [
+        'account_avatax_sale_oca',
+    ],
+    "data": [
+    ],
+    "application": False,
+    "installable": True,
+    "auto_install": False
+}
+
diff --git a/osi_avatax_rounding_fix/models/__init__.py b/osi_avatax_rounding_fix/models/__init__.py
new file mode 100644
index 000000000..b60632946
--- /dev/null
+++ b/osi_avatax_rounding_fix/models/__init__.py
@@ -0,0 +1 @@
+from . import account_tax
diff --git a/osi_avatax_rounding_fix/models/account_tax.py b/osi_avatax_rounding_fix/models/account_tax.py
new file mode 100644
index 000000000..bad19bb62
--- /dev/null
+++ b/osi_avatax_rounding_fix/models/account_tax.py
@@ -0,0 +1,14 @@
+from odoo import api, fields, models
+
+
+class AccountTax(models.Model):
+    _inherit = 'account.tax'
+
+    @api.model
+    def _prepare_tax_totals(self, base_lines, currency, tax_lines=None, is_company_currency_requested=False):
+        vals = super()._prepare_tax_totals(base_lines, currency, tax_lines, is_company_currency_requested)
+        if vals.get('amount_untaxed'):
+            vals['amount_untaxed'] = round(vals['amount_untaxed'], 2)
+        if vals.get('amount_total'):
+            vals['amount_total'] = round(vals['amount_total'], 2)
+        return vals