diff --git a/lib/reports/__tests__/sie-export.test.ts b/lib/reports/__tests__/sie-export.test.ts
index 41d1b02a..ce6a498c 100644
--- a/lib/reports/__tests__/sie-export.test.ts
+++ b/lib/reports/__tests__/sie-export.test.ts
@@ -483,4 +483,73 @@ describe('generateSIEExport', () => {
     expect(output).toContain('#UB 0 1930 12000.00')
     expect(output).toContain('#UB 0 2440 -12000.00')
   })
+
+  it('excludes the OB entry from #VER output and #UB movement so a zeroed-out account gets #UB 0', async () => {
+    // Regression: the OB entry was included in both getOpeningBalances (#IB)
+    // and calculateBalances (movement), so its debit cancelled the real net
+    // movement and left #UB = #IB for any account zeroed out during the year.
+    //
+    // Setup: 1933 opens at 96 466,59 (IB), is swept to 0 via a transfer to
+    // 1930 during the year. The OB entry (id: 'ob-entry-1') is returned by
+    // the journal_entries query because it lives in the same fiscal period.
+    results = [
+      { data: { id: 'period-1', period_start: '2024-01-01', period_end: '2024-12-31', opening_balance_entry_id: 'ob-entry-1' }, error: null },
+      { data: null, error: null }, // prevPeriod
+      { data: [], error: null },   // accounts
+      {
+        data: [
+          // The OB entry itself — must be excluded from movement/VER output
+          {
+            id: 'ob-entry-1',
+            entry_date: '2024-01-01',
+            voucher_number: 1,
+            voucher_series: 'A',
+            description: 'IB 2024',
+            status: 'posted',
+            lines: [
+              { account_number: '1933', debit_amount: 96466.59, credit_amount: 0, line_description: 'IB 1933', cost_center: null, project: null },
+              { account_number: '2019', debit_amount: 0, credit_amount: 96466.59, line_description: null, cost_center: null, project: null },
+            ],
+          },
+          // A real transaction: account 1933 swept to 1930
+          {
+            id: 'e2',
+            entry_date: '2024-08-07',
+            voucher_number: 2,
+            voucher_series: 'A',
+            description: 'Stängning Bokio',
+            status: 'posted',
+            lines: [
+              { account_number: '1930', debit_amount: 96466.59, credit_amount: 0, line_description: null, cost_center: null, project: null },
+              { account_number: '1933', debit_amount: 0, credit_amount: 96466.59, line_description: null, cost_center: null, project: null },
+            ],
+          },
+        ],
+        error: null,
+      },
+      { data: [], error: null }, // cost_centers
+      { data: [], error: null }, // projects
+      // fetchAllRows for OB entry lines (opening_balance_entry_id is set)
+      {
+        data: [
+          { account_number: '1933', debit_amount: 96466.59, credit_amount: 0 },
+          { account_number: '2019', debit_amount: 0, credit_amount: 96466.59 },
+        ],
+        error: null,
+      },
+    ]
+
+    const output = await generateSIEExport(supabase, 'company-1', baseOptions)
+
+    // IB recorded correctly
+    expect(output).toContain('#IB 0 1933 96466.59')
+    // 1933 was zeroed out: UB must be 0, not a repeat of IB
+    expect(output).toContain('#UB 0 1933 0.00')
+    // 1930 received the sweep: UB = 0 + 96466.59
+    expect(output).toContain('#UB 0 1930 96466.59')
+    // OB entry must NOT appear as a #VER block
+    expect(output).not.toContain('"IB 2024"')
+    // The real transfer entry must appear
+    expect(output).toContain('"Stängning Bokio"')
+  })
 })
diff --git a/lib/reports/sie-export.ts b/lib/reports/sie-export.ts
index a4d5ce2d..59aa367b 100644
--- a/lib/reports/sie-export.ts
+++ b/lib/reports/sie-export.ts
@@ -198,7 +198,7 @@ export async function generateSIEExport(
   // balances RPC derives IB from earlier journal lines instead of silently
   // emitting zero #IB records and producing wrong #UB values.
   const openingBalancesByAccount = new Map<string, number>()
-  const { balances: obBalances } = await getOpeningBalances(supabase, companyId, {
+  const { balances: obBalances, obEntryId } = await getOpeningBalances(supabase, companyId, {
     period_start: period.period_start,
     opening_balance_entry_id: period.opening_balance_entry_id ?? null,
   })
@@ -210,8 +210,12 @@ export async function generateSIEExport(
     openingBalancesByAccount.set(accountNumber, amount)
   }
 
+  // Exclude the OB entry from VER/TRANS and from movement calculations to
+  // prevent double-counting: it is already represented by the #IB records above.
+  const periodEntries = (entries as JournalEntry[])?.filter(e => e.id !== obEntryId) ?? []
+
   // === Journal entries (VER + TRANS) ===
-  for (const entry of (entries as JournalEntry[]) || []) {
+  for (const entry of periodEntries) {
     const entryLines = (entry.lines as JournalEntryLine[]) || []
     const entryDate = dateStringToSIE(entry.entry_date)
     const series = entry.voucher_series || 'A'
@@ -248,7 +252,7 @@ export async function generateSIEExport(
 
   // === Closing balances (UB for balance sheet, RES for income statement) ===
   // Movement balances from journal entries
-  const movementBalances = calculateBalances(entries as JournalEntry[])
+  const movementBalances = calculateBalances(periodEntries)
 
   // Merge all accounts that have either IB or movements
   const allAccountNumbers = new Set([