diff --git a/db/routines/vn/procedures/ticket_getTax.sql b/db/routines/vn/procedures/ticket_getTax.sql
index 947c45806..cb9dc09d9 100644
--- a/db/routines/vn/procedures/ticket_getTax.sql
+++ b/db/routines/vn/procedures/ticket_getTax.sql
@@ -1,5 +1,7 @@
 DELIMITER $$
-CREATE OR REPLACE DEFINER=`vn`@`localhost` PROCEDURE `vn`.`ticket_getTax`(IN vTaxArea VARCHAR(25))
+CREATE OR REPLACE DEFINER=`vn`@`localhost` PROCEDURE `vn`.`ticket_getTax`(
+	vTaxArea VARCHAR(25)
+)
 BEGIN
 /**
  * Calcula la base imponible, el IVA y el recargo de equivalencia para
@@ -33,30 +35,39 @@ BEGIN
 	CREATE OR REPLACE TEMPORARY TABLE tmp.ticketTax
 		(PRIMARY KEY (ticketFk, code, rate))
 		ENGINE = MEMORY
-		SELECT * FROM (
-			SELECT tmpTicket.ticketFk,
-					bp.pgcFk,
-					SUM(s.quantity * s.price * (100 - s.discount) / 100 ) taxableBase,
-					pgc.rate,
-					tc.code,
-					bp.priority
-				FROM tmp.ticket tmpTicket
-					JOIN sale s ON s.ticketFk = tmpTicket.ticketFk
-					JOIN item i ON i.id = s.itemFk
-					JOIN ticket t ON t.id = tmpTicket.ticketFk
-					JOIN supplier su ON su.id = t.companyFk
+		WITH sales AS (
+			SELECT s.ticketFk,
+					s.itemFk,
+					s.quantity * s.price * (100 - s.discount) / 100 total,
+					t.companyFk,
+					t.addressFk,
+					su.countryFk,
+					ata.areaFk,
+					itc.taxClassFk
+				FROM vn.sale s
+					JOIN tmp.ticket tmp ON tmp.ticketFk = s.ticketFk
+					JOIN vn.ticket t ON t.id = s.ticketFk
+					JOIN vn.supplier su ON su.id = t.companyFk
 					JOIN tmp.addressTaxArea ata ON ata.addressFk = t.addressFk
 						AND ata.companyFk = t.companyFk
-					JOIN itemTaxCountry itc ON itc.itemFk = i.id
+					JOIN vn.itemTaxCountry itc ON itc.itemFk = s.itemFk
 						AND itc.countryFk = su.countryFk
-					JOIN bookingPlanner bp ON bp.countryFk = su.countryFk
-						AND bp.taxAreaFk = ata.areaFk
-						AND bp.taxClassFk = itc.taxClassFk
-					JOIN pgc ON pgc.code = bp.pgcFk
-					JOIN taxClass tc ON tc.id = bp.taxClassFk
-				GROUP BY tmpTicket.ticketFk, pgc.code, pgc.rate
-				HAVING taxableBase
-			) t3
+				HAVING total
+		)
+		SELECT s.ticketFk,
+				bp.pgcFk,
+				SUM(s.total) taxableBase,
+				pgc.rate,
+				tc.code,
+				bp.priority
+			FROM sales s
+				JOIN vn.bookingPlanner bp ON bp.countryFk = s.countryFk
+					AND bp.taxAreaFk = s.areaFk
+					AND bp.taxClassFk = s.taxClassFk
+				JOIN vn.pgc ON pgc.code = bp.pgcFk
+				JOIN vn.taxClass tc ON tc.id = bp.taxClassFk
+			GROUP BY s.ticketFk, pgc.code, pgc.rate
+			HAVING taxableBase
 			ORDER BY priority;
 
 	CREATE OR REPLACE TEMPORARY TABLE tmp.ticketServiceTax
diff --git a/modules/invoiceOut/back/methods/invoiceOut/negativeBases.js b/modules/invoiceOut/back/methods/invoiceOut/negativeBases.js
index 76ef29604..9e491b35c 100644
--- a/modules/invoiceOut/back/methods/invoiceOut/negativeBases.js
+++ b/modules/invoiceOut/back/methods/invoiceOut/negativeBases.js
@@ -48,13 +48,13 @@ module.exports = Self => {
         let stmt;
         stmts.push(new ParameterizedSQL(
             `CREATE OR REPLACE TEMPORARY TABLE tmp.ticket
-                (KEY (ticketFk))
+                (INDEX (ticketFk))
                 ENGINE = MEMORY
                 SELECT id ticketFk
-                    FROM ticket t
+                    FROM ticket
                     WHERE shipped BETWEEN ? AND util.dayEnd(?)
                         AND refFk IS NULL`, [args.from, args.to]));
-        stmts.push(`CALL vn.ticket_getTax(NULL)`);
+        stmts.push(`CALL ticket_getTax(NULL)`);
         stmts.push(new ParameterizedSQL(
             `CREATE OR REPLACE TEMPORARY TABLE tmp.filter
                 ENGINE = MEMORY
@@ -71,12 +71,12 @@ module.exports = Self => {
                         c.isTaxDataChecked,
                         w.id comercialId,
                         u.name workerName
-                    FROM vn.ticket t
-                        JOIN vn.company co ON co.id = t.companyFk
-                        JOIN vn.sale s ON s.ticketFk = t.id
-                        JOIN vn.client c ON c.id = t.clientFk
-                        JOIN vn.country cou ON cou.id = c.countryFk
-                        LEFT JOIN vn.worker w ON w.id = c.salesPersonFk
+                    FROM ticket t
+                        JOIN company co ON co.id = t.companyFk
+                        JOIN sale s ON s.ticketFk = t.id
+                        JOIN client c ON c.id = t.clientFk
+                        JOIN country cou ON cou.id = c.countryFk
+                        LEFT JOIN worker w ON w.id = c.salesPersonFk
                         JOIN account.user u ON u.id = w.id
                         LEFT JOIN (
                             SELECT ticketFk, taxableBase