diff --git a/backend/services/reporting-service/src/application/services/system-account-report-application.service.ts b/backend/services/reporting-service/src/application/services/system-account-report-application.service.ts
index 6fdcd971..6bb272c0 100644
--- a/backend/services/reporting-service/src/application/services/system-account-report-application.service.ts
+++ b/backend/services/reporting-service/src/application/services/system-account-report-application.service.ts
@@ -302,8 +302,8 @@ export class SystemAccountReportApplicationService {
 
   /**
    * 组装固定账户数据
-   * [2026-01-07] 更新：将过期收益累加到总部储蓄账户 (HQ_COMMUNITY / S0000000001) 的累计收入和账户余额中
-   * 过期的分享权益会进入 S0000000001，所以余额和收入都需要包含过期收益
+   * [2026-01-07] 更新：账户余额 = 累计收入 - 累计转出
+   * 对于总部储蓄账户 (HQ_COMMUNITY / S0000000001)，累计收入需要加上过期收益
    */
   private assembleFixedAccounts(
     fixedAccounts: AllSystemAccountsResponse['fixedAccounts'],
@@ -320,25 +320,32 @@ export class SystemAccountReportApplicationService {
     for (const account of fixedAccounts) {
       const fieldName = FIXED_ACCOUNT_TYPES[account.accountType];
       if (fieldName && fieldName in result) {
-        // 如果是总部储蓄账户 (HQ_COMMUNITY)，累加过期收益到余额和累计收入
+        const currentReceived = parseFloat(account.totalReceived) || 0;
+        const currentTransferred = parseFloat(account.totalTransferred) || 0;
+
+        // 如果是总部储蓄账户 (HQ_COMMUNITY)，累计收入需要加上过期收益
         if (account.accountType === 'HQ_COMMUNITY' && expiredRewardsTotal > 0) {
-          const currentBalance = parseFloat(account.usdtBalance) || 0;
-          const currentReceived = parseFloat(account.totalReceived) || 0;
-          const newBalance = currentBalance + expiredRewardsTotal;
           const newTotalReceived = currentReceived + expiredRewardsTotal;
+          // 账户余额 = 累计收入 - 累计转出
+          const newBalance = newTotalReceived - currentTransferred;
           (result as any)[fieldName] = {
             ...account,
             usdtBalance: newBalance.toFixed(8),
             totalReceived: newTotalReceived.toFixed(8),
           };
-          this.logger.log(
-            `[assembleFixedAccounts] HQ_COMMUNITY 余额: ${currentBalance} + 过期收益 ${expiredRewardsTotal} = ${newBalance}`,
-          );
           this.logger.log(
             `[assembleFixedAccounts] HQ_COMMUNITY 累计收入: ${currentReceived} + 过期收益 ${expiredRewardsTotal} = ${newTotalReceived}`,
           );
+          this.logger.log(
+            `[assembleFixedAccounts] HQ_COMMUNITY 余额: ${newTotalReceived} - ${currentTransferred} = ${newBalance}`,
+          );
         } else {
-          (result as any)[fieldName] = account;
+          // 其他账户：账户余额 = 累计收入 - 累计转出
+          const newBalance = currentReceived - currentTransferred;
+          (result as any)[fieldName] = {
+            ...account,
+            usdtBalance: newBalance.toFixed(8),
+          };
         }
       }
     }