diff --git a/Koha/Account.pm b/Koha/Account.pm
index 304d0e2743..eeb87a546c 100644
--- a/Koha/Account.pm
+++ b/Koha/Account.pm
@@ -423,6 +423,11 @@ sub balance {
 
 my $lines = Koha::Account->new({ patron_id => $patron_id })->outstanding_debits;
 
+It returns the debit lines with outstanding amounts for the patron.
+
+In scalar context, it returns a Koha::Account::Lines iterator. In list context, it will
+return a list of Koha::Account::Line objects.
+
 =cut
 
 sub outstanding_debits {
@@ -440,6 +445,11 @@ sub outstanding_debits {
 
 my $lines = Koha::Account->new({ patron_id => $patron_id })->outstanding_credits;
 
+It returns the credit lines with outstanding amounts for the patron.
+
+In scalar context, it returns a Koha::Account::Lines iterator. In list context, it will
+return a list of Koha::Account::Line objects.
+
 =cut
 
 sub outstanding_credits {