diff --git a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/InvoiceApplicationServiceImpl.java b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/InvoiceApplicationServiceImpl.java
index 9c513a2e..ed6a2444 100644
--- a/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/InvoiceApplicationServiceImpl.java
+++ b/blade-service/blade-transport/src/main/java/org/springblade/transport/service/impl/InvoiceApplicationServiceImpl.java
@@ -1011,11 +1011,14 @@ public class InvoiceApplicationServiceImpl extends BaseServiceImpl<InvoiceApplic
 		param.setCustomnameidNumber(Func.isBlank(customer.getSupplierCode()) ? customer.getCustomerCode() : customer.getSupplierCode());
 		// 【必填】项目.项目编码：开关开启取项目档案真实编码（金蝶档案须已存在且编码一致），未关联项目兜底 999
 		param.setAwrpProjectNumber(kingdeeApBillSyncSupport.kingdeeProjectNumber(entity.getProjectId(), kingdeeContext));
-		// ==================== 以下为非必填字段，先注释保留，联调确认后按需放开 ====================
-		// 申请金额（不含税）：分录不含税合计（放开时需按分摊后分录汇总）
-		// param.setInvoiceamount(invoiceamount);
-		// 申请税额：分录税额合计（放开时需按分摊后分录汇总）
-		// param.setTotaltax(totaltax);
+		// 申请金额（不含税）/申请税额：按分录合计送出（金蝶按「头=明细合计」强校验，不送时金蝶自行推导，
+		// 与明细价税分离的舍入口径可能差 0.01 尾差导致保存被拒，2026-11-05 联调）
+		BigDecimal entryAmountNoTax = items.stream().map(BfiInvoiceApplySaveEntryDTO::getAmount)
+			.filter(Objects::nonNull).reduce(BigDecimal.ZERO, BigDecimal::add);
+		BigDecimal entryTax = items.stream().map(BfiInvoiceApplySaveEntryDTO::getTax)
+			.filter(Objects::nonNull).reduce(BigDecimal.ZERO, BigDecimal::add);
+		param.setInvoiceamount(entryAmountNoTax);
+		param.setTotaltax(entryTax);
 		// 数据来源：固定 3
 		// param.setBillsource("3");