diff --git a/internal/modules/finance/transactions/module.go b/internal/modules/finance/transactions/module.go
index c98931a3..01b68621 100644
--- a/internal/modules/finance/transactions/module.go
+++ b/internal/modules/finance/transactions/module.go
@@ -35,7 +35,8 @@ func (TransactionModule) RegisterRoutes(router fiber.Router, db *gorm.DB, valida
 		panic(fmt.Sprintf("failed to register injection approval workflow: %v", err))
 	}
 
-	transactionService := sTransaction.NewTransactionService(transactionRepo, approvalService, validate)
+	fifoPaymentService := commonSvc.NewFifoPaymentService(db, utils.Log)
+	transactionService := sTransaction.NewTransactionService(transactionRepo, approvalService, fifoPaymentService, validate)
 	userService := sUser.NewUserService(userRepo, validate)
 
 	TransactionRoutes(router, userService, transactionService)
diff --git a/internal/modules/finance/transactions/services/transaction.service.go b/internal/modules/finance/transactions/services/transaction.service.go
index d58c4aa3..4ace9ca8 100644
--- a/internal/modules/finance/transactions/services/transaction.service.go
+++ b/internal/modules/finance/transactions/services/transaction.service.go
@@ -30,19 +30,22 @@ type transactionService struct {
 	Validate          *validator.Validate
 	Repository        repository.TransactionRepository
 	ApprovalSvc       commonSvc.ApprovalService
+	FifoPaymentSvc    commonSvc.FifoPaymentService
 	approvalWorkflows map[string]approvalutils.ApprovalWorkflowKey
 }
 
 func NewTransactionService(
 	repo repository.TransactionRepository,
 	approvalSvc commonSvc.ApprovalService,
+	fifoPaymentSvc commonSvc.FifoPaymentService,
 	validate *validator.Validate,
 ) TransactionService {
 	return &transactionService{
-		Log:         utils.Log,
-		Validate:    validate,
-		Repository:  repo,
-		ApprovalSvc: approvalSvc,
+		Log:            utils.Log,
+		Validate:       validate,
+		Repository:     repo,
+		ApprovalSvc:    approvalSvc,
+		FifoPaymentSvc: fifoPaymentSvc,
 		approvalWorkflows: map[string]approvalutils.ApprovalWorkflowKey{
 			string(utils.TransactionTypeSaldoAwal): utils.ApprovalWorkflowInitial,
 			string(utils.TransactionTypeInjection): utils.ApprovalWorkflowInjection,
@@ -182,6 +185,19 @@ func (s transactionService) GetOne(c *fiber.Ctx, id uint) (*entity.Payment, erro
 }
 
 func (s transactionService) DeleteOne(c *fiber.Ctx, id uint) error {
+	// Snapshot party SEBELUM delete supaya bisa re-FIFO setelah trigger DB
+	// (`trg_soft_delete_fk_payments`) CASCADE hard-DELETE allocations.
+	existing, err := s.Repository.GetByID(c.Context(), id, nil)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return fiber.NewError(fiber.StatusNotFound, "Transaction not found")
+		}
+		s.Log.Errorf("Failed to load transaction before delete: %+v", err)
+		return err
+	}
+	partyType := existing.PartyType
+	partyID := existing.PartyId
+
 	if err := s.Repository.DeleteOne(c.Context(), id); err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
 			return fiber.NewError(fiber.StatusNotFound, "Transaction not found")
@@ -189,6 +205,14 @@ func (s transactionService) DeleteOne(c *fiber.Ctx, id uint) error {
 		s.Log.Errorf("Failed to delete transaction: %+v", err)
 		return err
 	}
+
+	// Re-FIFO setelah delete agar payment lain yang masih punya unallocated nominal
+	// otomatis reflow ke MDP/purchase_item/expense_realization yang kekurangan paid.
+	if s.FifoPaymentSvc != nil && partyID > 0 {
+		if err := s.FifoPaymentSvc.ReallocateForParty(c.Context(), nil, partyType, partyID); err != nil {
+			s.Log.Warnf("Failed to reallocate payments after delete (party=%s id=%d): %+v", partyType, partyID, err)
+		}
+	}
 	return nil
 }