diff --git a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
index 63e9d61c409..47d5480268c 100644
--- a/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_crabe.modules.php
@@ -1163,6 +1163,14 @@ class pdf_crabe extends ModelePDFFactures
 				$pdf->SetFont('', '', $default_font_size - 2);
 				$pdf->SetXY($posxval, $posy);
 				$lib_mode_reg = $outputlangs->transnoentities("PaymentType".$object->mode_reglement_code) != ('PaymentType'.$object->mode_reglement_code) ? $outputlangs->transnoentities("PaymentType".$object->mode_reglement_code) : $outputlangs->convToOutputCharset($object->mode_reglement);
+				//#21654: add account number used for the debit
+				if ($object->mode_reglement_code == "PRE") {
+					require_once DOL_DOCUMENT_ROOT.'/societe/class/companybankaccount.class.php';
+					$bac = new CompanyBankAccount($this->db);
+					$bac->fetch(0, $object->thirdparty->id);
+					$iban= $bac->iban.(($bac->iban && $bac->bic) ? ' / ' : '').$bac->bic;
+					$lib_mode_reg .= $langs->trans("PaymentTypePREdetails", dol_trunc($iban, 6, 'right', 'UTF-8', 1));
+				}
 				$pdf->MultiCell(80, 5, $lib_mode_reg, 0, 'L');
 
 				$posy = $pdf->GetY();
diff --git a/htdocs/core/modules/facture/doc/pdf_sponge.modules.php b/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
index f096392df4a..547aaaadae1 100644
--- a/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
+++ b/htdocs/core/modules/facture/doc/pdf_sponge.modules.php
@@ -1271,6 +1271,16 @@ class pdf_sponge extends ModelePDFFactures
 				$pdf->SetFont('', '', $default_font_size - 2);
 				$pdf->SetXY($posxval, $posy);
 				$lib_mode_reg = $outputlangs->transnoentities("PaymentType".$object->mode_reglement_code) != ('PaymentType'.$object->mode_reglement_code) ? $outputlangs->transnoentities("PaymentType".$object->mode_reglement_code) : $outputlangs->convToOutputCharset($object->mode_reglement);
+
+				//#21654: add account number used for the debit
+				if ($object->mode_reglement_code == "PRE") {
+					require_once DOL_DOCUMENT_ROOT.'/societe/class/companybankaccount.class.php';
+					$bac = new CompanyBankAccount($this->db);
+					$bac->fetch(0, $object->thirdparty->id);
+					$iban= $bac->iban.(($bac->iban && $bac->bic) ? ' / ' : '').$bac->bic;
+					$lib_mode_reg .= $langs->trans("PaymentTypePREdetails", dol_trunc($iban, 6, 'right', 'UTF-8', 1));
+				}
+
 				$pdf->MultiCell($posxend - $posxval, 5, $lib_mode_reg, 0, 'L');
 
 				$posy = $pdf->GetY();
@@ -1291,6 +1301,7 @@ class pdf_sponge extends ModelePDFFactures
 					}
 				}
 
+
 				if ($object->statut != Facture::STATUS_DRAFT && $useonlinepayment) {
 					require_once DOL_DOCUMENT_ROOT.'/core/lib/payments.lib.php';
 					global $langs;
diff --git a/htdocs/langs/en_US/bills.lang b/htdocs/langs/en_US/bills.lang
index 22ca3f4cec1..7af765216d9 100644
--- a/htdocs/langs/en_US/bills.lang
+++ b/htdocs/langs/en_US/bills.lang
@@ -446,6 +446,7 @@ ErrorPaymentConditionsNotEligibleToDepositCreation=The chose payment conditions
 PaymentTypeVIR=Bank transfer
 PaymentTypeShortVIR=Bank transfer
 PaymentTypePRE=Direct debit payment order
+PaymentTypePREdetails=(on account *-%s)
 PaymentTypeShortPRE=Debit payment order
 PaymentTypeLIQ=Cash
 PaymentTypeShortLIQ=Cash
@@ -620,4 +621,4 @@ NoPaymentAvailable=No payment available for %s
 PaymentRegisteredAndInvoiceSetToPaid=Payment registered and invoice %s set to paid
 SendEmailsRemindersOnInvoiceDueDate=Send reminder by email for unpaid invoices
 MakePaymentAndClassifyPayed=Record payment
-BulkPaymentNotPossibleForInvoice=Bulk payment is not possible for invoice %s (bad type or status)
\ No newline at end of file
+BulkPaymentNotPossibleForInvoice=Bulk payment is not possible for invoice %s (bad type or status)
diff --git a/htdocs/langs/fr_FR/bills.lang b/htdocs/langs/fr_FR/bills.lang
index 21163098b48..b3af3031266 100644
--- a/htdocs/langs/fr_FR/bills.lang
+++ b/htdocs/langs/fr_FR/bills.lang
@@ -437,6 +437,7 @@ VarAmountAllLines=Montant variable (%% tot.) - toutes les lignes identiques
 PaymentTypeVIR=Virement bancaire
 PaymentTypeShortVIR=Virement bancaire
 PaymentTypePRE=Ordre de prélèvement
+PaymentTypePREdetails=(compte *-%s)
 PaymentTypeShortPRE=Ordre de prélèvement
 PaymentTypeLIQ=Espèce
 PaymentTypeShortLIQ=Espèce