diff --git a/src/Budget.Client/src/components/SortableHeader.tsx b/src/Budget.Client/src/components/SortableHeader.tsx
new file mode 100644
index 0000000..7019a6d
--- /dev/null
+++ b/src/Budget.Client/src/components/SortableHeader.tsx
@@ -0,0 +1,32 @@
+import { ChevronUp, ChevronDown } from 'lucide-react';
+
+export type SortDir = 'asc' | 'desc';
+export interface SortState { column: string; dir: SortDir; }
+
+export function nextSort(current: SortState | null, column: string): SortState | null {
+  if (current?.column !== column) return { column, dir: 'asc' };
+  if (current.dir === 'asc') return { column, dir: 'desc' };
+  return null;
+}
+
+interface Props {
+  label: string;
+  column: string;
+  sort: SortState | null;
+  onSort: (col: string) => void;
+  className?: string;
+}
+
+export function SortableHeader({ label, column, sort, onSort, className }: Props) {
+  const active = sort?.column === column;
+  return (
+    <th
+      className={`col-sortable${className ? ` ${className}` : ''}`}
+      onClick={() => onSort(column)}
+    >
+      {label}
+      {active && sort?.dir === 'asc'  && <ChevronUp   size={12} className="sort-icon" />}
+      {active && sort?.dir === 'desc' && <ChevronDown  size={12} className="sort-icon" />}
+    </th>
+  );
+}
diff --git a/src/Budget.Client/src/index.css b/src/Budget.Client/src/index.css
index 65698a4..e66a746 100644
--- a/src/Budget.Client/src/index.css
+++ b/src/Budget.Client/src/index.css
@@ -330,6 +330,20 @@ td {
 .col-drag:active { cursor: grabbing; }
 .col-actions { width: 1%; white-space: nowrap; }
 
+.col-sortable {
+  cursor: pointer;
+  user-select: none;
+  white-space: nowrap;
+}
+.col-sortable:hover { background: var(--green-100); }
+
+.sort-icon {
+  display: inline-block;
+  margin-left: 3px;
+  vertical-align: middle;
+  color: var(--color-primary);
+}
+
 /* Inline edit inputs inside tables */
 td input[type="text"], td input:not([type]) {
   min-width: 100px;
diff --git a/src/Budget.Client/src/pages/IncomePage.tsx b/src/Budget.Client/src/pages/IncomePage.tsx
index 8e71165..05c67fc 100644
--- a/src/Budget.Client/src/pages/IncomePage.tsx
+++ b/src/Budget.Client/src/pages/IncomePage.tsx
@@ -1,4 +1,4 @@
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useMemo } from 'react';
 import { useParams } from 'react-router-dom';
 import { useForm, Controller } from 'react-hook-form';
 import { zodResolver } from '@hookform/resolvers/zod';
@@ -26,6 +26,8 @@ import { useIncomes, useCreateIncome, useUpdateIncome, useDeleteIncome, useReord
 import { createIncomeSchema, type CreateIncomeInput } from '../schemas/index';
 import { toMonthly, toAnnually } from '../utils/frequency';
 import { Check, X, Trash2, Plus } from 'lucide-react';
+import { SortableHeader, nextSort } from '../components/SortableHeader';
+import type { SortState } from '../components/SortableHeader';
 
 const fmt = new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD' });
 
@@ -108,12 +110,14 @@ function SortableRow({
   income,
   onSave,
   onDelete,
+  dragDisabled,
 }: {
   income: IncomeDto;
   onSave: (id: string, data: CreateIncomeInput) => void;
   onDelete: (id: string) => void;
+  dragDisabled?: boolean;
 }) {
-  const { attributes, listeners, setNodeRef, transform, transition } = useSortable({ id: income.id });
+  const { attributes, listeners, setNodeRef, transform, transition } = useSortable({ id: income.id, disabled: dragDisabled });
   const style = { transform: CSS.Transform.toString(transform), transition };
   const [editing, setEditing] = useState(false);
 
@@ -169,7 +173,7 @@ function SortableRow({
 
   return (
     <tr ref={setNodeRef} style={style}>
-      <td className="col-drag" {...attributes} {...listeners}>⠿</td>
+      <td className="col-drag" {...(!dragDisabled ? { ...attributes, ...listeners } : {})} style={{ cursor: dragDisabled ? 'default' : 'grab', opacity: dragDisabled ? 0.2 : 1 }}>⠿</td>
       <td onClick={startEdit} style={{ cursor: 'pointer' }}>{income.name}</td>
       <td onClick={startEdit} style={{ cursor: 'pointer' }}>{income.frequency}</td>
       <td className="col-money" onClick={startEdit} style={{ cursor: 'pointer' }}><MoneyDisplay value={income.amount} /></td>
@@ -187,6 +191,9 @@ export function IncomePage() {
   const { id: budgetId } = useParams<{ id: string }>();
   const sensors = useSensors(useSensor(PointerSensor));
   const [addingRow, setAddingRow] = useState(false);
+  const [sort, setSort] = useState<SortState | null>(null);
+
+  const handleSort = (col: string) => setSort(s => nextSort(s, col));
 
   const { data: incomes = [], isLoading } = useIncomes(budgetId!);
   const [displayItems, setDisplayItems] = useState<IncomeDto[]>([]);
@@ -206,6 +213,21 @@ export function IncomePage() {
     deleteIncome.mutate(id);
   };
 
+  const sortedItems = useMemo(() => {
+    if (!sort) return displayItems;
+    return [...displayItems].sort((a, b) => {
+      let cmp = 0;
+      switch (sort.column) {
+        case 'name':      cmp = a.name.localeCompare(b.name); break;
+        case 'frequency': cmp = a.frequency.localeCompare(b.frequency); break;
+        case 'amount':    cmp = a.amount - b.amount; break;
+        case 'monthly':   cmp = a.monthly - b.monthly; break;
+        case 'annually':  cmp = a.annually - b.annually; break;
+      }
+      return sort.dir === 'asc' ? cmp : -cmp;
+    });
+  }, [displayItems, sort]);
+
   const handleAdd = async (data: CreateIncomeInput) => {
     await createIncome.mutateAsync(data);
     setAddingRow(false);
@@ -232,23 +254,24 @@ export function IncomePage() {
           <thead>
             <tr>
               <th style={{ width: 32 }}></th>
-              <th>Name</th>
-              <th>Frequency</th>
-              <th className="col-money">Amount</th>
-              <th className="col-money">Monthly</th>
-              <th className="col-money">Annually</th>
+              <SortableHeader label="Name"      column="name"      sort={sort} onSort={handleSort} />
+              <SortableHeader label="Frequency" column="frequency" sort={sort} onSort={handleSort} />
+              <SortableHeader label="Amount"    column="amount"    sort={sort} onSort={handleSort} className="col-money" />
+              <SortableHeader label="Monthly"   column="monthly"   sort={sort} onSort={handleSort} className="col-money" />
+              <SortableHeader label="Annually"  column="annually"  sort={sort} onSort={handleSort} className="col-money" />
               <th></th>
             </tr>
           </thead>
           <DndContext sensors={sensors} collisionDetection={closestCenter} onDragEnd={handleDragEnd}>
-            <SortableContext items={displayItems.map(i => i.id)} strategy={verticalListSortingStrategy}>
+            <SortableContext items={sortedItems.map(i => i.id)} strategy={verticalListSortingStrategy}>
               <tbody>
-                {displayItems.map(income => (
+                {sortedItems.map(income => (
                   <SortableRow
                     key={income.id}
                     income={income}
                     onSave={handleSave}
                     onDelete={handleDelete}
+                    dragDisabled={!!sort}
                   />
                 ))}
                 {addingRow && (
diff --git a/src/Budget.Client/src/pages/OutgoPage.tsx b/src/Budget.Client/src/pages/OutgoPage.tsx
index c35b82b..9b3ed5f 100644
--- a/src/Budget.Client/src/pages/OutgoPage.tsx
+++ b/src/Budget.Client/src/pages/OutgoPage.tsx
@@ -1,4 +1,4 @@
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useMemo } from 'react';
 import { useParams } from 'react-router-dom';
 import { useForm, Controller } from 'react-hook-form';
 import { zodResolver } from '@hookform/resolvers/zod';
@@ -30,6 +30,8 @@ import {
 import { createOutgoSchema, type CreateOutgoInput } from '../schemas/index';
 import { toMonthly, toAnnually } from '../utils/frequency';
 import { Check, X, Trash2, Plus } from 'lucide-react';
+import { SortableHeader, nextSort } from '../components/SortableHeader';
+import type { SortState } from '../components/SortableHeader';
 
 const fmt = new Intl.NumberFormat('en-US', { style: 'currency', currency: 'USD' });
 const OUTGO_TYPES = ['Need', 'Want', 'Save'] as const;
@@ -170,14 +172,16 @@ function SortableRow({
   paymentSources,
   onSave,
   onDelete,
+  dragDisabled,
 }: {
   outgo: OutgoDto;
   categories: string[];
   paymentSources: string[];
   onSave: (id: string, data: CreateOutgoInput) => void;
   onDelete: (id: string) => void;
+  dragDisabled?: boolean;
 }) {
-  const { attributes, listeners, setNodeRef, transform, transition } = useSortable({ id: outgo.id });
+  const { attributes, listeners, setNodeRef, transform, transition } = useSortable({ id: outgo.id, disabled: dragDisabled });
   const style = { transform: CSS.Transform.toString(transform), transition };
   const [editing, setEditing] = useState(false);
 
@@ -284,7 +288,7 @@ function SortableRow({
 
   return (
     <tr ref={setNodeRef} style={style}>
-      <td className="col-drag" {...attributes} {...listeners}>⠿</td>
+      <td className="col-drag" {...(!dragDisabled ? { ...attributes, ...listeners } : {})} style={{ cursor: dragDisabled ? 'default' : 'grab', opacity: dragDisabled ? 0.2 : 1 }}>⠿</td>
       <td onClick={startEdit} style={{ cursor: 'pointer' }}>{outgo.name}</td>
       <td onClick={startEdit} style={{ cursor: 'pointer' }}>{outgo.category}</td>
       <td onClick={startEdit} style={{ cursor: 'pointer' }}>
@@ -309,6 +313,9 @@ export function OutgoPage() {
   const { id: budgetId } = useParams<{ id: string }>();
   const sensors = useSensors(useSensor(PointerSensor));
   const [addingRow, setAddingRow] = useState(false);
+  const [sort, setSort] = useState<SortState | null>(null);
+
+  const handleSort = (col: string) => setSort(s => nextSort(s, col));
 
   const { data: outgos = [], isLoading } = useOutgos(budgetId!);
   const { data: categories = [] } = useCategories(budgetId!);
@@ -321,6 +328,25 @@ export function OutgoPage() {
   const createOutgo = useCreateOutgo(budgetId!);
   const reorderOutgos = useReorderOutgos(budgetId!);
 
+  const sortedItems = useMemo(() => {
+    if (!sort) return displayItems;
+    return [...displayItems].sort((a, b) => {
+      let cmp = 0;
+      switch (sort.column) {
+        case 'name':          cmp = a.name.localeCompare(b.name); break;
+        case 'category':      cmp = (a.category ?? '').localeCompare(b.category ?? ''); break;
+        case 'type':          cmp = a.type.localeCompare(b.type); break;
+        case 'frequency':     cmp = a.frequency.localeCompare(b.frequency); break;
+        case 'amount':        cmp = a.amount - b.amount; break;
+        case 'monthly':       cmp = a.monthly - b.monthly; break;
+        case 'annually':      cmp = a.annually - b.annually; break;
+        case 'monthlyPercent': cmp = a.monthlyPercent - b.monthlyPercent; break;
+        case 'paymentSource': cmp = (a.paymentSource ?? '').localeCompare(b.paymentSource ?? ''); break;
+      }
+      return sort.dir === 'asc' ? cmp : -cmp;
+    });
+  }, [displayItems, sort]);
+
   const handleSave = (id: string, data: CreateOutgoInput) => {
     updateOutgo.mutate({
       id,
@@ -373,23 +399,23 @@ export function OutgoPage() {
           <thead>
             <tr>
               <th style={{ width: 32 }}></th>
-              <th>Name</th>
-              <th>Category</th>
-              <th>Type</th>
-              <th>Frequency</th>
-              <th className="col-money">Amount</th>
-              <th className="col-money">Monthly</th>
-              <th className="col-money">Annually</th>
-              <th className="col-pct">Monthly%</th>
-              <th>Payment Source</th>
+              <SortableHeader label="Name"          column="name"          sort={sort} onSort={handleSort} />
+              <SortableHeader label="Category"      column="category"      sort={sort} onSort={handleSort} />
+              <SortableHeader label="Type"          column="type"          sort={sort} onSort={handleSort} />
+              <SortableHeader label="Frequency"     column="frequency"     sort={sort} onSort={handleSort} />
+              <SortableHeader label="Amount"        column="amount"        sort={sort} onSort={handleSort} className="col-money" />
+              <SortableHeader label="Monthly"       column="monthly"       sort={sort} onSort={handleSort} className="col-money" />
+              <SortableHeader label="Annually"      column="annually"      sort={sort} onSort={handleSort} className="col-money" />
+              <SortableHeader label="Monthly%"      column="monthlyPercent" sort={sort} onSort={handleSort} className="col-pct" />
+              <SortableHeader label="Payment Source" column="paymentSource" sort={sort} onSort={handleSort} />
               <th>Notes</th>
               <th></th>
             </tr>
           </thead>
           <DndContext sensors={sensors} collisionDetection={closestCenter} onDragEnd={handleDragEnd}>
-            <SortableContext items={displayItems.map(o => o.id)} strategy={verticalListSortingStrategy}>
+            <SortableContext items={sortedItems.map(o => o.id)} strategy={verticalListSortingStrategy}>
               <tbody>
-                {displayItems.map(outgo => (
+                {sortedItems.map(outgo => (
                   <SortableRow
                     key={outgo.id}
                     outgo={outgo}
@@ -397,6 +423,7 @@ export function OutgoPage() {
                     paymentSources={paymentSources}
                     onSave={handleSave}
                     onDelete={handleDelete}
+                    dragDisabled={!!sort}
                   />
                 ))}
                 {addingRow && (