diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index b1e0ac3375b..0935d471b9f 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -6940,7 +6940,7 @@ function showDimensionInBestUnit($dimension, $unit, $type, $outputlangs, $round
  *  @param  Societe		$thirdparty_buyer    	Object of buying third party
  *  @param	Societe		$thirdparty_seller		Object of selling third party ($mysoc if not defined)
  *  @param	int			$vatnpr					If vat rate is NPR or not
- * 	@return	int<0,0>|string	   					0 if not found, localtax rate if found
+ * 	@return	int<0,0>|string	   					0 if not found, localtax rate if found (Can be '20', '-19:-15:-9')
  *  @see get_default_tva()
  */
 function get_localtax($vatrate, $local, $thirdparty_buyer = null, $thirdparty_seller = null, $vatnpr = 0)
@@ -7020,7 +7020,7 @@ function get_localtax($vatrate, $local, $thirdparty_buyer = null, $thirdparty_se
 				}
 			} else { // i am the seller
 				if (!isOnlyOneLocalTax($local)) { // TODO If seller is me, why not always returning this, even if there is only one locatax vat.
-					return $conf->global->MAIN_INFO_VALUE_LOCALTAX1;
+					return getDolGlobalString('MAIN_INFO_VALUE_LOCALTAX1');
 				}
 			}
 		}
@@ -7034,7 +7034,7 @@ function get_localtax($vatrate, $local, $thirdparty_buyer = null, $thirdparty_se
 				if (in_array($mysoc->country_code, array('ES'))) {
 					return $thirdparty_buyer->localtax2_value;
 				} else {
-					return $conf->global->MAIN_INFO_VALUE_LOCALTAX2;
+					return getDolGlobalString('MAIN_INFO_VALUE_LOCALTAX2');
 				}
 			}
 		}
@@ -7204,7 +7204,7 @@ function getTaxesFromId($vatrate, $buyer = null, $seller = null, $firstparamisid
  *  @param	Societe	    $buyer         		Company object
  *  @param	Societe	    $seller        		Company object
  *  @param  int<0,1>    $firstparamisid     1 if first param is ID into table instead of Rate+code (use this if you can)
- *  @return	array{}|array{0:string,1:float,2:string,3:string}|array{0:string,1:float,2:string,3:float,4:string,5:string}	array(localtax_type1(1-6 or 0 if not found), rate localtax1, localtax_type2, rate localtax2, accountancycodecust, accountancycodesupp)
+ *  @return	array{}|array{0:string,1:int|string,2:string,3:string}|array{0:string,1:int|string,2:string,3:int|string,4:string,5:string}		array(localtax_type1('1-6' or '0' if not found), rate localtax1, localtax_type2, rate localtax2, accountancycodecust, accountancycodesupp)
  *  @see getTaxesFromId()
  */
 function getLocalTaxesFromRate($vatrate, $local, $buyer, $seller, $firstparamisid = 0)