diff --git a/htdocs/langs/en_US/accountancy.lang b/htdocs/langs/en_US/accountancy.lang
index 1283e454e1b..a1859e0ad4b 100644
--- a/htdocs/langs/en_US/accountancy.lang
+++ b/htdocs/langs/en_US/accountancy.lang
@@ -95,10 +95,10 @@ ACCOUNTING_ACCOUNT_TRANSFER_CASH=Account of transfer
 ACCOUNTING_ACCOUNT_SUSPENSE=Account of wait
 DONATION_ACCOUNTINGACCOUNT=Account to register donations
 
-ACCOUNTING_PRODUCT_BUY_ACCOUNT=Accounting account by default for bought products (if not defined in the product sheet)
-ACCOUNTING_PRODUCT_SOLD_ACCOUNT=Accounting account by default for the sold products (if not defined in the product sheet)
-ACCOUNTING_SERVICE_BUY_ACCOUNT=Accounting account by default for the bought services (if not defined in the service sheet)
-ACCOUNTING_SERVICE_SOLD_ACCOUNT=Accounting account by default for the sold services (if not defined in the service sheet)
+ACCOUNTING_PRODUCT_BUY_ACCOUNT=Accounting account by default for bought products (used if not defined in the product sheet)
+ACCOUNTING_PRODUCT_SOLD_ACCOUNT=Accounting account by default for the sold products (used if not defined in the product sheet)
+ACCOUNTING_SERVICE_BUY_ACCOUNT=Accounting account by default for the bought services (used if not defined in the service sheet)
+ACCOUNTING_SERVICE_SOLD_ACCOUNT=Accounting account by default for the sold services (used if not defined in the service sheet)
 
 Doctype=Type of document
 Docdate=Date
diff --git a/htdocs/langs/en_US/compta.lang b/htdocs/langs/en_US/compta.lang
index b6f998e29be..c6f56630745 100644
--- a/htdocs/langs/en_US/compta.lang
+++ b/htdocs/langs/en_US/compta.lang
@@ -184,11 +184,11 @@ CalculationRuleDescSupplier=According to supplier, choose appropriate method to
 TurnoverPerProductInCommitmentAccountingNotRelevant=Turnover report per product, when using a <b>cash accountancy</b> mode is not relevant. This report is only available when using <b>engagement accountancy</b> mode (see setup of accountancy module).
 CalculationMode=Calculation mode
 AccountancyJournal=Accountancy code journal
-ACCOUNTING_VAT_SOLD_ACCOUNT=Accounting account by default for collecting VAT (VAT on sales)
-ACCOUNTING_VAT_BUY_ACCOUNT=Accounting account by default for recovered VAT (VAT on purchases)
+ACCOUNTING_VAT_SOLD_ACCOUNT=Accounting account by default for collecting VAT - VAT on sales (used if not defined on VAT dictionary setup)
+ACCOUNTING_VAT_BUY_ACCOUNT=Accounting account by default for recovered VAT - VAT on purchases (used if not defined on VAT dictionary setup)
 ACCOUNTING_VAT_PAY_ACCOUNT=Accounting account by default for paying VAT
-ACCOUNTING_ACCOUNT_CUSTOMER=Accounting account by default for customer thirdparties
-ACCOUNTING_ACCOUNT_SUPPLIER=Accounting account by default for supplier thirdparties
+ACCOUNTING_ACCOUNT_CUSTOMER=Accounting account by default for customer third parties (used if not defined on third party card)
+ACCOUNTING_ACCOUNT_SUPPLIER=Accounting account by default for supplier third parties (used if not defined on third party card)
 CloneTax=Clone a social/fiscal tax
 ConfirmCloneTax=Confirm the clone of a social/fiscal tax payment
 CloneTaxForNextMonth=Clone it for next month