diff --git a/frontend/src/pages/accounts/AccountsPage.tsx b/frontend/src/pages/accounts/AccountsPage.tsx
index 5cc9d7c..54bec34 100644
--- a/frontend/src/pages/accounts/AccountsPage.tsx
+++ b/frontend/src/pages/accounts/AccountsPage.tsx
@@ -117,7 +117,9 @@ const fmt = (v: string | number) =>
 export function AccountsPage() {
   const [opened, { open, close }] = useDisclosure(false);
   const [adjustOpened, { open: openAdjust, close: closeAdjust }] = useDisclosure(false);
+  const [invEditOpened, { open: openInvEdit, close: closeInvEdit }] = useDisclosure(false);
   const [editing, setEditing] = useState<Account | null>(null);
+  const [editingInvestment, setEditingInvestment] = useState<Investment | null>(null);
   const [adjustingAccount, setAdjustingAccount] = useState<Account | null>(null);
   const [search, setSearch] = useState('');
   const [filterType, setFilterType] = useState<string | null>(null);
@@ -277,7 +279,73 @@ export function AccountsPage() {
     },
   });
 
+  // ── Investment edit form ──
+  const invForm = useForm({
+    initialValues: {
+      name: '',
+      institution: '',
+      accountNumberLast4: '',
+      investmentType: 'cd',
+      fundType: 'operating',
+      principal: 0,
+      interestRate: 0,
+      maturityDate: null as Date | null,
+      purchaseDate: null as Date | null,
+      currentValue: 0,
+      notes: '',
+    },
+    validate: {
+      name: (v) => (v.length > 0 ? null : 'Required'),
+      principal: (v) => (v > 0 ? null : 'Required'),
+    },
+  });
+
+  const updateInvestmentMutation = useMutation({
+    mutationFn: (values: any) =>
+      api.put(`/investment-accounts/${editingInvestment!.id}`, {
+        name: values.name,
+        institution: values.institution || null,
+        account_number_last4: values.accountNumberLast4 || null,
+        investment_type: values.investmentType,
+        fund_type: values.fundType,
+        principal: values.principal,
+        interest_rate: values.interestRate || 0,
+        maturity_date: values.maturityDate ? values.maturityDate.toISOString().split('T')[0] : null,
+        purchase_date: values.purchaseDate ? values.purchaseDate.toISOString().split('T')[0] : null,
+        current_value: values.currentValue || values.principal,
+        notes: values.notes || null,
+      }),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ['investments'] });
+      notifications.show({ message: 'Investment updated', color: 'green' });
+      closeInvEdit();
+      setEditingInvestment(null);
+      invForm.reset();
+    },
+    onError: (err: any) => {
+      notifications.show({ message: err.response?.data?.message || 'Error updating investment', color: 'red' });
+    },
+  });
+
   // ── Handlers ──
+  const handleEditInvestment = (inv: Investment) => {
+    setEditingInvestment(inv);
+    invForm.setValues({
+      name: inv.name,
+      institution: inv.institution || '',
+      accountNumberLast4: inv.account_number_last4 || '',
+      investmentType: inv.investment_type,
+      fundType: inv.fund_type,
+      principal: parseFloat(inv.principal || '0'),
+      interestRate: parseFloat(inv.interest_rate || '0'),
+      maturityDate: inv.maturity_date ? new Date(inv.maturity_date) : null,
+      purchaseDate: inv.purchase_date ? new Date(inv.purchase_date) : null,
+      currentValue: parseFloat(inv.current_value || inv.principal || '0'),
+      notes: '',
+    });
+    openInvEdit();
+  };
+
   const handleEdit = (account: Account) => {
     setEditing(account);
     form.setValues({
@@ -436,7 +504,6 @@ export function AccountsPage() {
           <Tabs.Tab value="reserve">
             Reserve ({activeAccounts.filter(a => a.fund_type === 'reserve').length + reserveInvestments.length})
           </Tabs.Tab>
-          <Tabs.Tab value="investments">Investments ({investments.filter(i => i.is_active).length})</Tabs.Tab>
           {showArchived && archivedAccounts.length > 0 && (
             <Tabs.Tab value="archived" color="gray">
               Archived ({archivedAccounts.length})
@@ -465,7 +532,7 @@ export function AccountsPage() {
             {operatingInvestments.length > 0 && (
               <>
                 <Divider label="Operating Investment Accounts" labelPosition="center" my="xs" />
-                <InvestmentMiniTable investments={operatingInvestments} />
+                <InvestmentMiniTable investments={operatingInvestments} onEdit={handleEditInvestment} />
               </>
             )}
           </Stack>
@@ -482,14 +549,11 @@ export function AccountsPage() {
             {reserveInvestments.length > 0 && (
               <>
                 <Divider label="Reserve Investment Accounts" labelPosition="center" my="xs" />
-                <InvestmentMiniTable investments={reserveInvestments} />
+                <InvestmentMiniTable investments={reserveInvestments} onEdit={handleEditInvestment} />
               </>
             )}
           </Stack>
         </Tabs.Panel>
-        <Tabs.Panel value="investments" pt="sm">
-          <InvestmentsTab investments={investments} isLoading={investmentsLoading} />
-        </Tabs.Panel>
         {showArchived && (
           <Tabs.Panel value="archived" pt="sm">
             <AccountTable
@@ -693,6 +757,79 @@ export function AccountsPage() {
           </form>
         )}
       </Modal>
+
+      {/* Investment Edit Modal */}
+      <Modal opened={invEditOpened} onClose={closeInvEdit} title="Edit Investment Account" size="md">
+        {editingInvestment && (
+          <form onSubmit={invForm.onSubmit((values) => updateInvestmentMutation.mutate(values))}>
+            <Stack>
+              <TextInput label="Investment Name" required {...invForm.getInputProps('name')} />
+              <TextInput label="Institution" placeholder="e.g. First National Bank" {...invForm.getInputProps('institution')} />
+              <Select
+                label="Investment Type"
+                required
+                data={[
+                  { value: 'cd', label: 'CD' },
+                  { value: 'money_market', label: 'Money Market' },
+                  { value: 'treasury', label: 'Treasury' },
+                  { value: 'savings', label: 'Savings' },
+                  { value: 'other', label: 'Brokerage / Other' },
+                ]}
+                {...invForm.getInputProps('investmentType')}
+              />
+              <Select
+                label="Fund Type"
+                required
+                data={[
+                  { value: 'operating', label: 'Operating' },
+                  { value: 'reserve', label: 'Reserve' },
+                ]}
+                {...invForm.getInputProps('fundType')}
+              />
+              <Divider label="Financial Details" labelPosition="center" />
+              <Group grow>
+                <NumberInput
+                  label="Principal"
+                  required
+                  prefix="$"
+                  decimalScale={2}
+                  thousandSeparator=","
+                  min={0}
+                  {...invForm.getInputProps('principal')}
+                />
+                <NumberInput
+                  label="Current Value"
+                  prefix="$"
+                  decimalScale={2}
+                  thousandSeparator=","
+                  min={0}
+                  {...invForm.getInputProps('currentValue')}
+                />
+              </Group>
+              <NumberInput
+                label="Interest Rate (%)"
+                decimalScale={4}
+                suffix="%"
+                min={0}
+                max={100}
+                {...invForm.getInputProps('interestRate')}
+              />
+              <Group grow>
+                <DateInput label="Purchase Date" clearable {...invForm.getInputProps('purchaseDate')} />
+                <DateInput label="Maturity Date" clearable {...invForm.getInputProps('maturityDate')} />
+              </Group>
+              <TextInput
+                label="Account # (last 4)"
+                placeholder="1234"
+                maxLength={4}
+                {...invForm.getInputProps('accountNumberLast4')}
+              />
+              <Textarea label="Notes" autosize minRows={2} maxRows={4} {...invForm.getInputProps('notes')} />
+              <Button type="submit" loading={updateInvestmentMutation.isPending}>Update Investment</Button>
+            </Stack>
+          </form>
+        )}
+      </Modal>
     </Stack>
   );
 }
@@ -776,7 +913,7 @@ function AccountTable({
             </Table.Td>
             <Table.Td>
               <Group gap={4}>
-                {a.account_type === 'asset' && (
+                {!a.is_system && (
                   <Tooltip label={a.is_primary ? 'Primary account' : 'Set as Primary'}>
                     <ActionIcon
                       variant="subtle"
@@ -787,7 +924,7 @@ function AccountTable({
                     </ActionIcon>
                   </Tooltip>
                 )}
-                {a.account_type === 'asset' && (
+                {!a.is_system && (
                   <Tooltip label="Adjust Balance">
                     <ActionIcon variant="subtle" color="blue" onClick={() => onAdjustBalance(a)}>
                       <IconAdjustments size={16} />
@@ -819,14 +956,14 @@ function AccountTable({
   );
 }
 
-// ── Investments Tab Component ──
+// ── Investment Table for Operating/Reserve tabs ──
 
-function InvestmentsTab({
+function InvestmentMiniTable({
   investments,
-  isLoading,
+  onEdit,
 }: {
   investments: Investment[];
-  isLoading: boolean;
+  onEdit: (inv: Investment) => void;
 }) {
   const totalPrincipal = investments.reduce((s, i) => s + parseFloat(i.principal || '0'), 0);
   const totalValue = investments.reduce(
@@ -838,40 +975,20 @@ function InvestmentsTab({
       ? investments.reduce((s, i) => s + parseFloat(i.interest_rate || '0'), 0) / investments.length
       : 0;
 
-  if (isLoading) {
-    return (
-      <Center h={200}>
-        <Loader />
-      </Center>
-    );
-  }
-
   return (
-    <Stack>
+    <Stack gap="sm">
       <SimpleGrid cols={{ base: 1, sm: 3 }}>
-        <Card withBorder p="md">
-          <Text size="xs" c="dimmed">
-            Total Principal
-          </Text>
-          <Text fw={700} size="xl">
-            {fmt(totalPrincipal)}
-          </Text>
+        <Card withBorder p="xs">
+          <Text size="xs" c="dimmed">Total Principal</Text>
+          <Text fw={700} size="sm">{fmt(totalPrincipal)}</Text>
         </Card>
-        <Card withBorder p="md">
-          <Text size="xs" c="dimmed">
-            Total Current Value
-          </Text>
-          <Text fw={700} size="xl" c="green">
-            {fmt(totalValue)}
-          </Text>
+        <Card withBorder p="xs">
+          <Text size="xs" c="dimmed">Total Current Value</Text>
+          <Text fw={700} size="sm" c="teal">{fmt(totalValue)}</Text>
         </Card>
-        <Card withBorder p="md">
-          <Text size="xs" c="dimmed">
-            Avg Interest Rate
-          </Text>
-          <Text fw={700} size="xl">
-            {avgRate.toFixed(2)}%
-          </Text>
+        <Card withBorder p="xs">
+          <Text size="xs" c="dimmed">Avg Interest Rate</Text>
+          <Text fw={700} size="sm">{avgRate.toFixed(2)}%</Text>
         </Card>
       </SimpleGrid>
 
@@ -881,51 +998,45 @@ function InvestmentsTab({
             <Table.Th>Name</Table.Th>
             <Table.Th>Institution</Table.Th>
             <Table.Th>Type</Table.Th>
-            <Table.Th>Fund</Table.Th>
             <Table.Th ta="right">Principal</Table.Th>
+            <Table.Th ta="right">Current Value</Table.Th>
             <Table.Th ta="right">Rate</Table.Th>
             <Table.Th ta="right">Interest Earned</Table.Th>
             <Table.Th ta="right">Maturity Value</Table.Th>
-            <Table.Th ta="right">Days Remaining</Table.Th>
             <Table.Th>Maturity Date</Table.Th>
+            <Table.Th ta="right">Days Remaining</Table.Th>
+            <Table.Th></Table.Th>
           </Table.Tr>
         </Table.Thead>
         <Table.Tbody>
           {investments.length === 0 && (
             <Table.Tr>
-              <Table.Td colSpan={10}>
-                <Text ta="center" c="dimmed" py="lg">
-                  No investments yet
-                </Text>
+              <Table.Td colSpan={11}>
+                <Text ta="center" c="dimmed" py="lg">No investment accounts</Text>
               </Table.Td>
             </Table.Tr>
           )}
           {investments.map((inv) => (
             <Table.Tr key={inv.id}>
               <Table.Td fw={500}>{inv.name}</Table.Td>
-              <Table.Td>{inv.institution}</Table.Td>
+              <Table.Td>{inv.institution || '-'}</Table.Td>
               <Table.Td>
-                <Badge size="sm" variant="light">
+                <Badge size="sm" variant="light" color="teal">
                   {inv.investment_type}
                 </Badge>
               </Table.Td>
-              <Table.Td>
-                <Badge size="sm" color={inv.fund_type === 'reserve' ? 'violet' : 'gray'} variant="light">
-                  {inv.fund_type}
-                </Badge>
-              </Table.Td>
-              <Table.Td ta="right" ff="monospace">
-                {fmt(inv.principal)}
-              </Table.Td>
-              <Table.Td ta="right">
-                {parseFloat(inv.interest_rate || '0').toFixed(2)}%
-              </Table.Td>
+              <Table.Td ta="right" ff="monospace">{fmt(inv.principal)}</Table.Td>
+              <Table.Td ta="right" ff="monospace">{fmt(inv.current_value || inv.principal)}</Table.Td>
+              <Table.Td ta="right">{parseFloat(inv.interest_rate || '0').toFixed(2)}%</Table.Td>
               <Table.Td ta="right" ff="monospace">
                 {inv.interest_earned !== null ? fmt(inv.interest_earned) : '-'}
               </Table.Td>
               <Table.Td ta="right" ff="monospace">
                 {inv.maturity_value !== null ? fmt(inv.maturity_value) : '-'}
               </Table.Td>
+              <Table.Td>
+                {inv.maturity_date ? new Date(inv.maturity_date).toLocaleDateString() : '-'}
+              </Table.Td>
               <Table.Td ta="right">
                 {inv.days_remaining !== null ? (
                   <Badge
@@ -940,79 +1051,11 @@ function InvestmentsTab({
                 )}
               </Table.Td>
               <Table.Td>
-                {inv.maturity_date ? new Date(inv.maturity_date).toLocaleDateString() : '-'}
-              </Table.Td>
-            </Table.Tr>
-          ))}
-        </Table.Tbody>
-      </Table>
-    </Stack>
-  );
-}
-
-// ── Compact Investment Table for Operating/Reserve tabs ──
-
-function InvestmentMiniTable({ investments }: { investments: Investment[] }) {
-  const totalValue = investments.reduce(
-    (s, i) => s + parseFloat(i.current_value || i.principal || '0'),
-    0,
-  );
-
-  return (
-    <Stack gap="xs">
-      <Group justify="space-between">
-        <Text size="sm" fw={600} c="dimmed">
-          {investments.length} investment{investments.length !== 1 ? 's' : ''} — Total: {fmt(totalValue)}
-        </Text>
-      </Group>
-      <Table striped highlightOnHover>
-        <Table.Thead>
-          <Table.Tr>
-            <Table.Th>Name</Table.Th>
-            <Table.Th>Type</Table.Th>
-            <Table.Th>Institution</Table.Th>
-            <Table.Th ta="right">Principal / Value</Table.Th>
-            <Table.Th ta="right">Rate</Table.Th>
-            <Table.Th ta="right">Interest Earned</Table.Th>
-            <Table.Th>Maturity</Table.Th>
-          </Table.Tr>
-        </Table.Thead>
-        <Table.Tbody>
-          {investments.map((inv) => (
-            <Table.Tr key={inv.id}>
-              <Table.Td fw={500}>{inv.name}</Table.Td>
-              <Table.Td>
-                <Badge size="sm" variant="light" color="teal">
-                  {inv.investment_type}
-                </Badge>
-              </Table.Td>
-              <Table.Td>{inv.institution || '-'}</Table.Td>
-              <Table.Td ta="right" ff="monospace">
-                {fmt(inv.current_value || inv.principal)}
-              </Table.Td>
-              <Table.Td ta="right">
-                {parseFloat(inv.interest_rate || '0').toFixed(2)}%
-              </Table.Td>
-              <Table.Td ta="right" ff="monospace">
-                {inv.interest_earned !== null ? fmt(inv.interest_earned) : '-'}
-              </Table.Td>
-              <Table.Td>
-                {inv.maturity_date ? (
-                  <Group gap={4}>
-                    <Text size="sm">{new Date(inv.maturity_date).toLocaleDateString()}</Text>
-                    {inv.days_remaining !== null && (
-                      <Badge
-                        size="xs"
-                        color={inv.days_remaining <= 30 ? 'red' : inv.days_remaining <= 90 ? 'yellow' : 'gray'}
-                        variant="light"
-                      >
-                        {inv.days_remaining}d
-                      </Badge>
-                    )}
-                  </Group>
-                ) : (
-                  '-'
-                )}
+                <Tooltip label="Edit investment">
+                  <ActionIcon variant="subtle" onClick={() => onEdit(inv)}>
+                    <IconEdit size={16} />
+                  </ActionIcon>
+                </Tooltip>
               </Table.Td>
             </Table.Tr>
           ))}