diff --git a/src/modules/finance/controllers/bank-reconciliation.controller.ts b/src/modules/finance/controllers/bank-reconciliation.controller.ts
index 766a8a3..6d0ef75 100644
--- a/src/modules/finance/controllers/bank-reconciliation.controller.ts
+++ b/src/modules/finance/controllers/bank-reconciliation.controller.ts
@@ -319,7 +319,7 @@ export function createBankReconciliationController(dataSource: DataSource): Rout
    * GET /reconciliations/:id
    * Obtiene una conciliación por ID
    */
-  router.get('/reconciliations/:id', async (req: Request, res: Response) => {
+  router.get('/reconciliations/:id', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -328,7 +328,8 @@ export function createBankReconciliationController(dataSource: DataSource): Rout
 
       const reconciliation = await service.findReconciliationById(ctx, req.params.id);
       if (!reconciliation) {
-        return res.status(404).json({ error: 'Conciliación no encontrada' });
+        res.status(404).json({ error: 'Conciliación no encontrada' });
+        return;
       }
 
       res.json(reconciliation);
@@ -377,7 +378,7 @@ export function createBankReconciliationController(dataSource: DataSource): Rout
    * POST /reconciliations/:id/reconcile-movement
    * Concilia un movimiento
    */
-  router.post('/reconciliations/:id/reconcile-movement', async (req: Request, res: Response) => {
+  router.post('/reconciliations/:id/reconcile-movement', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -386,7 +387,8 @@ export function createBankReconciliationController(dataSource: DataSource): Rout
 
       const { movementId } = req.body;
       if (!movementId) {
-        return res.status(400).json({ error: 'Se requiere ID del movimiento' });
+        res.status(400).json({ error: 'Se requiere ID del movimiento' });
+        return;
       }
 
       const reconciliation = await service.reconcileMovement(ctx, req.params.id, movementId);
diff --git a/src/modules/finance/controllers/cash-flow.controller.ts b/src/modules/finance/controllers/cash-flow.controller.ts
index 5b72ab0..8b02df4 100644
--- a/src/modules/finance/controllers/cash-flow.controller.ts
+++ b/src/modules/finance/controllers/cash-flow.controller.ts
@@ -67,7 +67,7 @@ export function createCashFlowController(dataSource: DataSource): Router {
    * GET /summary
    * Obtiene resumen de flujo de efectivo
    */
-  router.get('/summary', async (req: Request, res: Response) => {
+  router.get('/summary', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -78,7 +78,8 @@ export function createCashFlowController(dataSource: DataSource): Router {
       const endDate = new Date(req.query.endDate as string);
 
       if (isNaN(startDate.getTime()) || isNaN(endDate.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const options = {
@@ -121,7 +122,7 @@ export function createCashFlowController(dataSource: DataSource): Router {
    * GET /:id
    * Obtiene una proyección por ID
    */
-  router.get('/:id', async (req: Request, res: Response) => {
+  router.get('/:id', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -130,7 +131,8 @@ export function createCashFlowController(dataSource: DataSource): Router {
 
       const projection = await service.findById(ctx, req.params.id);
       if (!projection) {
-        return res.status(404).json({ error: 'Proyección no encontrada' });
+        res.status(404).json({ error: 'Proyección no encontrada' });
+        return;
       }
 
       res.json(projection);
@@ -217,7 +219,7 @@ export function createCashFlowController(dataSource: DataSource): Router {
    * POST /generate
    * Genera proyección automática para un periodo
    */
-  router.post('/generate', async (req: Request, res: Response) => {
+  router.post('/generate', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -227,7 +229,8 @@ export function createCashFlowController(dataSource: DataSource): Router {
       const { periodStart, periodEnd, periodType, projectId, projectCode } = req.body;
 
       if (!periodStart || !periodEnd) {
-        return res.status(400).json({ error: 'Se requieren fechas de inicio y fin' });
+        res.status(400).json({ error: 'Se requieren fechas de inicio y fin' });
+        return;
       }
 
       const projection = await service.generateProjection(
@@ -247,7 +250,7 @@ export function createCashFlowController(dataSource: DataSource): Router {
    * POST /generate-multiple
    * Genera múltiples proyecciones (ej: 4 semanas)
    */
-  router.post('/generate-multiple', async (req: Request, res: Response) => {
+  router.post('/generate-multiple', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -257,7 +260,8 @@ export function createCashFlowController(dataSource: DataSource): Router {
       const { startDate, weeks, projectId, projectCode } = req.body;
 
       if (!startDate || !weeks) {
-        return res.status(400).json({ error: 'Se requiere fecha de inicio y número de semanas' });
+        res.status(400).json({ error: 'Se requiere fecha de inicio y número de semanas' });
+        return;
       }
 
       const projections = await service.generateMultiplePeriods(
diff --git a/src/modules/finance/controllers/reports.controller.ts b/src/modules/finance/controllers/reports.controller.ts
index 8208235..7fa9375 100644
--- a/src/modules/finance/controllers/reports.controller.ts
+++ b/src/modules/finance/controllers/reports.controller.ts
@@ -47,7 +47,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * GET /income-statement
    * Genera estado de resultados
    */
-  router.get('/income-statement', async (req: Request, res: Response) => {
+  router.get('/income-statement', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -58,7 +58,8 @@ export function createReportsController(dataSource: DataSource): Router {
       const periodEnd = new Date(req.query.periodEnd as string);
 
       if (isNaN(periodStart.getTime()) || isNaN(periodEnd.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const options = {
@@ -81,7 +82,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * GET /cash-flow-statement
    * Genera estado de flujo de efectivo
    */
-  router.get('/cash-flow-statement', async (req: Request, res: Response) => {
+  router.get('/cash-flow-statement', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -92,7 +93,8 @@ export function createReportsController(dataSource: DataSource): Router {
       const periodEnd = new Date(req.query.periodEnd as string);
 
       if (isNaN(periodStart.getTime()) || isNaN(periodEnd.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const options = {
@@ -115,7 +117,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * GET /trial-balance
    * Genera balanza de comprobación
    */
-  router.get('/trial-balance', async (req: Request, res: Response) => {
+  router.get('/trial-balance', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -126,7 +128,8 @@ export function createReportsController(dataSource: DataSource): Router {
       const periodEnd = new Date(req.query.periodEnd as string);
 
       if (isNaN(periodStart.getTime()) || isNaN(periodEnd.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const options = {
@@ -150,7 +153,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * GET /account-statement/:accountId
    * Genera estado de cuenta
    */
-  router.get('/account-statement/:accountId', async (req: Request, res: Response) => {
+  router.get('/account-statement/:accountId', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -161,7 +164,8 @@ export function createReportsController(dataSource: DataSource): Router {
       const periodEnd = new Date(req.query.periodEnd as string);
 
       if (isNaN(periodStart.getTime()) || isNaN(periodEnd.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const report = await reportsService.generateAccountStatement(
@@ -200,7 +204,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * GET /export/sap
    * Exporta pólizas para SAP
    */
-  router.get('/export/sap', async (req: Request, res: Response) => {
+  router.get('/export/sap', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -211,7 +215,8 @@ export function createReportsController(dataSource: DataSource): Router {
       const periodEnd = new Date(req.query.periodEnd as string);
 
       if (isNaN(periodStart.getTime()) || isNaN(periodEnd.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const options = {
@@ -236,7 +241,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * GET /export/contpaqi
    * Exporta pólizas para CONTPAQi
    */
-  router.get('/export/contpaqi', async (req: Request, res: Response) => {
+  router.get('/export/contpaqi', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -247,7 +252,8 @@ export function createReportsController(dataSource: DataSource): Router {
       const periodEnd = new Date(req.query.periodEnd as string);
 
       if (isNaN(periodStart.getTime()) || isNaN(periodEnd.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const options = {
@@ -276,7 +282,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * GET /export/cfdi-polizas
    * Exporta pólizas en formato CFDI
    */
-  router.get('/export/cfdi-polizas', async (req: Request, res: Response) => {
+  router.get('/export/cfdi-polizas', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -287,7 +293,8 @@ export function createReportsController(dataSource: DataSource): Router {
       const periodEnd = new Date(req.query.periodEnd as string);
 
       if (isNaN(periodStart.getTime()) || isNaN(periodEnd.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const options = {
@@ -344,7 +351,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * GET /export/trial-balance
    * Exporta balanza de comprobación
    */
-  router.get('/export/trial-balance', async (req: Request, res: Response) => {
+  router.get('/export/trial-balance', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -355,7 +362,8 @@ export function createReportsController(dataSource: DataSource): Router {
       const periodEnd = new Date(req.query.periodEnd as string);
 
       if (isNaN(periodStart.getTime()) || isNaN(periodEnd.getTime())) {
-        return res.status(400).json({ error: 'Fechas inválidas' });
+        res.status(400).json({ error: 'Fechas inválidas' });
+        return;
       }
 
       const format = (req.query.format as 'csv' | 'xml' | 'json') || 'csv';
@@ -387,7 +395,7 @@ export function createReportsController(dataSource: DataSource): Router {
    * POST /import/chart-of-accounts
    * Importa catálogo de cuentas
    */
-  router.post('/import/chart-of-accounts', async (req: Request, res: Response) => {
+  router.post('/import/chart-of-accounts', async (req: Request, res: Response): Promise<void> => {
     try {
       const ctx = {
         tenantId: req.headers['x-tenant-id'] as string,
@@ -396,7 +404,8 @@ export function createReportsController(dataSource: DataSource): Router {
 
       const { data, format } = req.body;
       if (!data || !format) {
-        return res.status(400).json({ error: 'Se requieren datos y formato' });
+        res.status(400).json({ error: 'Se requieren datos y formato' });
+        return;
       }
 
       const result = await integrationService.importChartOfAccounts(ctx, data, format);