diff --git a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
index 9b179e38f45500e30cee14cb52165982d125b24c..e57ab838305cbbd784c3ac44d27336dd4005b5a2 100644
--- a/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
+++ b/erpnext/accounts/doctype/sales_invoice/sales_invoice.py
@@ -3017,6 +3017,7 @@ def create_dunning(source_name, target_doc=None, ignore_permissions=False):
 				if row.payment_schedule == source.payment_schedule[0].name:
 					row.outstanding = source.get("outstanding_amount")
 
+		target.round_floats_in(target)
 		target.validate()
 
 	return get_mapped_doc(