diff --git a/apps/api/src/routes/sync.test.ts b/apps/api/src/routes/sync.test.ts
index 158d81b..66ff42c 100644
--- a/apps/api/src/routes/sync.test.ts
+++ b/apps/api/src/routes/sync.test.ts
@@ -260,7 +260,7 @@ describe('sync routes — veesp', () => {
           return {
             ok: true,
             json: async () => ({
-              details: { currency: 'EUR', acc_balance: '100.00', acc_credit: '0.00' },
+              details: { currency: 'EUR', acc_balance: '0.00', acc_credit: '100.00' },
             }),
           }
         }
diff --git a/apps/api/src/services/veesp/operations.test.ts b/apps/api/src/services/veesp/operations.test.ts
index 8240ad0..d9d7549 100644
--- a/apps/api/src/services/veesp/operations.test.ts
+++ b/apps/api/src/services/veesp/operations.test.ts
@@ -1,8 +1,35 @@
 import { describe, expect, it } from 'vitest'
 
-import { parseVeespCollection } from './operations.js'
+import { parseVeespBalanceResponse, parseVeespCollection } from './operations.js'
 import type { VeespIpItem, VeespVmListItem } from './operations.js'
 
+describe('parseVeespBalanceResponse', () => {
+  it('uses acc_credit as available prepaid balance', () => {
+    const result = parseVeespBalanceResponse({
+      success: true,
+      details: { currency: 'EUR', acc_balance: '0.00', acc_credit: '42.50' },
+    })
+    expect(result.balance).toBe(42.5)
+    expect(result.currency).toBe('EUR')
+  })
+
+  it('does not treat unpaid invoice total (acc_balance) as account balance', () => {
+    const result = parseVeespBalanceResponse({
+      success: true,
+      details: { currency: 'USD', acc_balance: '123456.55', acc_credit: '0.00' },
+    })
+    expect(result.balance).toBe(0)
+  })
+
+  it('falls back to credit field when acc_credit is absent', () => {
+    const result = parseVeespBalanceResponse({
+      details: { currency: 'RUB', credit: '15.25' },
+    })
+    expect(result.balance).toBe(15.25)
+    expect(result.currency).toBe('RUB')
+  })
+})
+
 describe('parseVeespCollection', () => {
   it('parses vms object-map from Veesp API', () => {
     const json = {
diff --git a/apps/api/src/services/veesp/operations.ts b/apps/api/src/services/veesp/operations.ts
index 6561ff6..dcf28cf 100644
--- a/apps/api/src/services/veesp/operations.ts
+++ b/apps/api/src/services/veesp/operations.ts
@@ -157,6 +157,28 @@ function parseAmount(raw: string | number | undefined | null): number {
   return Number.isFinite(n) ? n : 0
 }
 
+/**
+ * Парсит ответ GET /balance Veesp/HostBill User API.
+ * acc_credit — предоплаченные средства на счёте; acc_balance — сумма неоплаченных инвойсов.
+ * @see https://secure.veesp.com/userapi — Billing → Account balance
+ */
+export function parseVeespBalanceResponse(
+  json: Record<string, unknown>,
+  fallbackCurrency = 'EUR',
+): VeespBalanceResult {
+  const details =
+    (json.details as Record<string, unknown> | undefined) ??
+    (json.balance as Record<string, unknown> | undefined) ??
+    json
+  const currency = String(details.currency ?? fallbackCurrency).trim() || fallbackCurrency
+  const credit = parseAmount(details.acc_credit as string | number | undefined)
+  const direct = parseAmount(
+    (details.credit ?? details.balance) as string | number | undefined,
+  )
+  const balance = credit || direct
+  return { balance, currency, enoughmoneyto: '' }
+}
+
 function normalizeSlug(value: string | undefined | null): string {
   return String(value ?? '')
     .trim()
@@ -388,13 +410,7 @@ export async function fetchBalance(
 ): Promise<VeespBalanceResult> {
   const client = clientFor(baseUrl, credentials)
   const json = await client.request<Record<string, unknown>>('/balance')
-  const details =
-    (json.details as Record<string, unknown> | undefined) ??
-    (json.balance as Record<string, unknown> | undefined) ??
-    json
-  const currency = String(details.currency ?? fallbackCurrency).trim() || fallbackCurrency
-  const balance = parseAmount(details.acc_balance as string | number | undefined)
-  return { balance, currency, enoughmoneyto: '' }
+  return parseVeespBalanceResponse(json, fallbackCurrency)
 }
 
 export async function fetchInvoices(baseUrl: string, credentials: string): Promise<VeespInvoice[]> {