diff --git a/common/util/billing.go b/common/util/billing.go
index b9dabe6..85e8eed 100644
--- a/common/util/billing.go
+++ b/common/util/billing.go
@@ -117,23 +117,8 @@ func calculateVideoResolutionBilling(config map[string]any, data map[string]any)
 }
 
 func calculateTTSBilling(config map[string]any, data map[string]any) map[string]any {
-	unit, _ := config["unit"].(string)
-	usage := gconv.Float64(data["usage"])
-
-	tiers := config["pricing"].(map[string]any)["tiers"].([]any)
-	var matched map[string]any
-	for _, t := range tiers {
-		tier := t.(map[string]any)
-		if usage >= gconv.Float64(tier["min"]) && usage <= gconv.Float64(tier["max"]) {
-			matched = tier
-			break
-		}
-	}
-	if matched == nil {
-		return nil
-	}
-
-	unitPrice := gconv.Float64(matched["unit_price"])
+	usage := gconv.Float64(data["synthesize_text_length"])
+	unitPrice := gconv.Float64(config["pricing"])
 	totalFee := usage * unitPrice
 
 	return map[string]any{
@@ -143,10 +128,7 @@ func calculateTTSBilling(config map[string]any, data map[string]any) map[string]
 		// 明细
 		"prompt_tokens":     0,
 		"completion_tokens": int64(usage),
-		"usage":             usage,
-		"unit":              unit,
 		"unit_price":        unitPrice,
-		"tier":              fmt.Sprintf("[%v, %v]", matched["min"], matched["max"]),
 	}
 }
 
diff --git a/service/task/worker.go b/service/task/worker.go
index 5f466c8..357c8ce 100644
--- a/service/task/worker.go
+++ b/service/task/worker.go
@@ -126,7 +126,13 @@ func (w *asyncWorker) handleOne(ctx context.Context, task *entity.ModelGatewayTa
 			task.BillingData[0] = billingResult
 			totalFee := gconv.Float64(billingResult["total_fee"])
 			if totalFee > 0 {
-				_ = gateway.DeductBalance(util.AsyncCtx(ctx), model.TenantId, -totalFee)
+				for attempt := 0; attempt <= maxRetry; attempt++ {
+					err = gateway.DeductBalance(util.AsyncCtx(ctx), model.TenantId, -totalFee)
+					if err == nil {
+						break
+					}
+					g.Log().Warningf(ctx, "[handleOne] 扣除余额失败 taskId=%s attempt=%d/%d err=%v", task.TaskID, attempt, maxRetry, err)
+				}
 			}
 		}
 	}
@@ -337,7 +343,13 @@ func (w *asyncWorker) parseAndRetry(ctx context.Context, body map[string]any, mo
 				task.BillingData = append(task.BillingData, billingResult)
 				totalFee := gconv.Float64(billingResult["total_fee"])
 				if totalFee > 0 {
-					_ = gateway.DeductBalance(util.AsyncCtx(ctx), task.TenantId, -totalFee)
+					for a := 0; a <= maxRetry; a++ {
+						errr := gateway.DeductBalance(util.AsyncCtx(ctx), task.TenantId, -totalFee)
+						if errr == nil {
+							break
+						}
+						g.Log().Warningf(ctx, "[handleOne] 扣除余额失败 taskId=%s attempt=%d/%d err=%v", task.TaskID, a, maxRetry, errr)
+					}
 				}
 			}