diff --git a/web-admin/src/utils/protocol-sample-payment.test.ts b/web-admin/src/utils/protocol-sample-payment.test.ts
index 2c9f9465..ddae9126 100644
--- a/web-admin/src/utils/protocol-sample-payment.test.ts
+++ b/web-admin/src/utils/protocol-sample-payment.test.ts
@@ -118,7 +118,7 @@ describe('sumSampleContractAmounts', () => {
 })
 
 describe('schedulePaidArrears', () => {
-  it('display paid includes dfj + jfqrz + yjf', () => {
+  it('display paid includes only yjf', () => {
     const { paid, arrears } = schedulePaidArrears(25880, [
       { payStatus: 'dfj', transferAmount: 480 },
       { payStatus: 'dfj', transferAmount: 6000 },
@@ -126,8 +126,8 @@ describe('schedulePaidArrears', () => {
       { payStatus: 'yjf', transferAmount: 200 },
       { payStatus: 'ytf', transferAmount: 50 }
     ])
-    assert.equal(paid, 6780)
-    assert.equal(arrears, 19100)
+    assert.equal(paid, 200)
+    assert.equal(arrears, 25680)
   })
 })
 
diff --git a/web-admin/src/utils/protocol-sample-payment.ts b/web-admin/src/utils/protocol-sample-payment.ts
index 3602e913..795abcdb 100644
--- a/web-admin/src/utils/protocol-sample-payment.ts
+++ b/web-admin/src/utils/protocol-sample-payment.ts
@@ -98,9 +98,6 @@ export function sampleScheduleDuesMismatchHint(pay: SamplePaymentLike): string |
   return null
 }
 
-/** 展示口径已缴：与后端 chase_period_money / 缴费信息期次一致 */
-const DISPLAY_PAID_STATUSES = new Set(['dfj', 'jfqrz', 'yjf'])
-
 function sumTransferAmountByStatuses(
   transfers: TransferLike[] | undefined,
   statuses: Set<string>
@@ -110,18 +107,6 @@ function sumTransferAmountByStatuses(
     .reduce((s, t) => s + (Number(t.transferAmount) || 0), 0)
 }
 
-/**
- * 期次已缴/欠缴（展示）：已缴 = dfj + jfqrz + yjf；欠缴 = max(应缴 − 已缴, 0)
- */
-export function schedulePaidArrears(
-  dueAmount: number,
-  transfers: TransferLike[]
-): { paid: number; arrears: number } {
-  const paid = Math.round(sumTransferAmountByStatuses(transfers, DISPLAY_PAID_STATUSES) * 100) / 100
-  const arrears = Math.round((dueAmount - paid) * 100) / 100
-  return { paid, arrears: arrears > 0 ? arrears : 0 }
-}
-
 /** 财务已确认口径（仅 yjf）：用于分改趸并期等与后端 plan_fq_to_fgd_merge 对齐 */
 export function scheduleFinanceConfirmedPaidArrears(
   dueAmount: number,
@@ -132,6 +117,18 @@ export function scheduleFinanceConfirmedPaidArrears(
   return { paid, arrears: Math.round((dueAmount - paid) * 100) / 100 }
 }
 
+/**
+ * 期次已缴/欠缴（展示）：已缴 = 仅 yjf；欠缴 = max(应缴 − 已缴, 0)
+ * 与后端 summarize_period / chase_period_money 一致
+ */
+export function schedulePaidArrears(
+  dueAmount: number,
+  transfers: TransferLike[]
+): { paid: number; arrears: number } {
+  const { paid, arrears } = scheduleFinanceConfirmedPaidArrears(dueAmount, transfers)
+  return { paid, arrears: arrears > 0 ? arrears : 0 }
+}
+
 /** 单样本合同金额 = 优惠价格；未填优惠价则 null */
 export function resolveSampleContractAmount(
   sample: SamplePriceLike | null | undefined
@@ -346,7 +343,7 @@ export function applyExpandRemainingToInstallment<T extends Record<string, any>>
 
   for (const s of schList) {
     if ((s.transfers || []).some((t) => t.payStatus === 'jfqrz')) {
-      throw new Error('存在缴费确认中的转账，请先完成财务确认')
+      throw new Error('存在付款确认中的转账，请先完成财务确认')
     }
   }