diff --git a/src/admin/clients.py b/src/admin/clients.py
index 375242a..85aa51b 100644
--- a/src/admin/clients.py
+++ b/src/admin/clients.py
@@ -1,11 +1,13 @@
 from django.contrib import admin
 from django.forms import ModelForm
-from django.utils.html import format_html
 from django.utils.translation import gettext_lazy as _
 from phonenumber_field.formfields import SplitPhoneNumberField
 
-# Assuming these imports are correct based on your setup
-from src.admin.base import admin_site
+from src.admin.shared import (
+    admin_site,
+    format_placeholder,
+    format_strong_with_subtext,
+)
 from src.models.clients import Client
 
 
@@ -64,11 +66,7 @@ class ClientAdmin(admin.ModelAdmin):
 
     def name_display(self, obj):
         """Display name with subtle emphasis."""
-        return format_html(
-            "<strong>{}</strong><br><small style='color: #888;'>{}</small>",
-            obj.name,
-            obj.short_code or "—",
-        )
+        return format_strong_with_subtext(obj.name, obj.short_code)
 
     name_display.short_description = "Client"
 
@@ -77,7 +75,7 @@ class ClientAdmin(admin.ModelAdmin):
         if obj.phone:
             # Uses the .as_international property from the PhoneNumber wrapper
             return obj.phone.as_international
-        return "—"
+        return format_placeholder()
 
     formatted_phone.short_description = "Phone"
 
diff --git a/src/admin/finance.py b/src/admin/finance.py
index bea461a..e5e8b1e 100644
--- a/src/admin/finance.py
+++ b/src/admin/finance.py
@@ -1,8 +1,12 @@
 from django.contrib import admin
-from django.utils.html import format_html
 from django.utils.translation import gettext_lazy as _
 
-from src.admin.base import admin_site
+from src.admin.shared import (
+    admin_site,
+    format_badge,
+    format_currency,
+    format_strong_with_subtext,
+)
 from src.models.finance import Expense, Invoice, Payment
 
 
@@ -76,11 +80,7 @@ class InvoiceAdmin(admin.ModelAdmin):
     )
 
     def client_display(self, obj):
-        return format_html(
-            "<strong>{}</strong><br><small>{}</small>",
-            obj.client.name,
-            obj.client.short_code,
-        )
+        return format_strong_with_subtext(obj.client.name, obj.client.short_code)
 
     client_display.short_description = "Client"
 
@@ -90,7 +90,7 @@ class InvoiceAdmin(admin.ModelAdmin):
     project_display.short_description = "Project"
 
     def amount_display(self, obj):
-        return format_html("<b>${:,.2f}</b>", obj.amount)
+        return format_currency(obj.amount)
 
     amount_display.short_description = "Amount"
 
@@ -103,11 +103,7 @@ class InvoiceAdmin(admin.ModelAdmin):
             "CANCELLED": "#6c757d",
         }
         color = color_map.get(obj.status, "#333")
-        return format_html(
-            "<span style='color: white; background: {}; padding: 3px 8px; border-radius: 6px; font-size: 12px;'>{}</span>",
-            color,
-            obj.get_status_display(),
-        )
+        return format_badge(obj.get_status_display(), background=color)
 
     status_badge.short_description = "Status"
 
@@ -154,7 +150,7 @@ class ExpenseAdmin(admin.ModelAdmin):
     readonly_fields = ("created_at",)
 
     def amount_display(self, obj):
-        return format_html("<b>${:,.2f}</b>", obj.amount)
+        return format_currency(obj.amount)
 
     amount_display.short_description = "Amount"
 
@@ -182,15 +178,13 @@ class PaymentAdmin(admin.ModelAdmin):
     )
 
     def invoice_display(self, obj):
-        return format_html(
-            "<strong>{}</strong><br><small>{}</small>",
-            obj.invoice.invoice_number,
-            obj.invoice.client.name,
+        return format_strong_with_subtext(
+            obj.invoice.invoice_number, obj.invoice.client.name
         )
 
     invoice_display.short_description = "Invoice"
 
     def amount_display(self, obj):
-        return format_html("<b>${:,.2f}</b>", obj.amount)
+        return format_currency(obj.amount)
 
     amount_display.short_description = "Amount"
diff --git a/src/admin/productivity.py b/src/admin/productivity.py
index caef48c..d33c65e 100644
--- a/src/admin/productivity.py
+++ b/src/admin/productivity.py
@@ -1,9 +1,13 @@
 from django.contrib import admin
-from django.utils.html import format_html
 from django.utils.timezone import localtime
 from django.utils.translation import gettext_lazy as _
 
-from src.admin.base import admin_site
+from src.admin.shared import (
+    admin_site,
+    format_badge,
+    format_placeholder,
+    format_strong,
+)
 from src.models.productivity import Note, TimeEntry
 
 
@@ -34,7 +38,7 @@ class NoteAdmin(admin.ModelAdmin):
 
     def title_display(self, obj):
         """Show truncated title for clarity."""
-        return format_html("<strong>{}</strong>", obj.title[:60])
+        return format_strong(obj.title[:60])
 
     title_display.short_description = "Title"
 
@@ -77,17 +81,17 @@ class TimeEntryAdmin(admin.ModelAdmin):
     readonly_fields = ("duration",)
 
     def description_display(self, obj):
-        return format_html("<strong>{}</strong>", obj.description[:50])
+        return format_strong(obj.description[:50])
 
     description_display.short_description = "Description"
 
     def project_display(self, obj):
-        return obj.project.name if obj.project else "—"
+        return obj.project.name if obj.project else format_placeholder()
 
     project_display.short_description = "Project"
 
     def task_display(self, obj):
-        return obj.task.name if obj.task else "—"
+        return obj.task.name if obj.task else format_placeholder()
 
     task_display.short_description = "Task"
 
@@ -95,7 +99,7 @@ class TimeEntryAdmin(admin.ModelAdmin):
         return (
             localtime(obj.start_time).strftime("%Y-%m-%d %H:%M")
             if obj.start_time
-            else "—"
+            else format_placeholder()
         )
 
     start_time_display.short_description = "Start"
@@ -103,7 +107,7 @@ class TimeEntryAdmin(admin.ModelAdmin):
     def end_time_display(self, obj):
         if obj.end_time:
             return localtime(obj.end_time).strftime("%Y-%m-%d %H:%M")
-        return format_html("<span style='color: #999;'>In Progress</span>")
+        return format_badge("In Progress", background="#999")
 
     end_time_display.short_description = "End"
 
@@ -111,12 +115,8 @@ class TimeEntryAdmin(admin.ModelAdmin):
         if obj.duration:
             hours = obj.duration.total_seconds() / 3600
             color = "#28a745" if hours < 8 else "#f39c12"
-            return format_html(
-                "<span style='color: {}; font-weight: 600;'>{:.2f} hrs</span>",
-                color,
-                hours,
-            )
-        return format_html("<span style='color: #888;'>—</span>")
+            return format_badge(f"{hours:.2f} hrs", background=color)
+        return format_placeholder()
 
     duration_display.short_description = "Duration"
 
diff --git a/src/admin/projects.py b/src/admin/projects.py
index 5383ade..30989e6 100644
--- a/src/admin/projects.py
+++ b/src/admin/projects.py
@@ -1,9 +1,15 @@
 from django.contrib import admin
 from django.utils import timezone
-from django.utils.html import format_html
 from django.utils.translation import gettext_lazy as _
 
-from src.admin.base import admin_site
+from src.admin.shared import (
+    admin_site,
+    format_badge,
+    format_currency,
+    format_placeholder,
+    format_strong,
+    format_strong_with_subtext,
+)
 from src.models.projects import Milestone, Project, Task
 
 
@@ -73,7 +79,7 @@ class ProjectAdmin(admin.ModelAdmin):
     readonly_fields = ("created_at", "updated_at")
 
     def name_display(self, obj):
-        return format_html("<strong>{}</strong>", obj.name)
+        return format_strong(obj.name)
 
     name_display.short_description = "Project"
 
@@ -91,16 +97,12 @@ class ProjectAdmin(admin.ModelAdmin):
             "CANCELLED": "#dc3545",
         }
         color = color_map.get(obj.status, "#999")
-        return format_html(
-            "<span style='background:{}; color:white; padding:3px 8px; border-radius:6px; font-size:12px;'>{}</span>",
-            color,
-            obj.get_status_display(),
-        )
+        return format_badge(obj.get_status_display(), background=color)
 
     status_badge.short_description = "Status"
 
     def budget_display(self, obj):
-        return format_html("<b>${:,.2f}</b>", obj.budget) if obj.budget else "—"
+        return format_currency(obj.budget) if obj.budget else format_placeholder()
 
     budget_display.short_description = "Budget"
 
@@ -131,7 +133,7 @@ class MilestoneAdmin(admin.ModelAdmin):
     )
 
     def title_display(self, obj):
-        return format_html("<strong>{}</strong>", obj.title)
+        return format_strong(obj.title)
 
     title_display.short_description = "Title"
 
@@ -143,11 +145,7 @@ class MilestoneAdmin(admin.ModelAdmin):
     def status_badge(self, obj):
         color = "#28a745" if obj.is_completed else "#dc3545"
         text = "Completed" if obj.is_completed else "Pending"
-        return format_html(
-            "<span style='background:{}; color:white; padding:2px 7px; border-radius:5px; font-size:12px;'>{}</span>",
-            color,
-            text,
-        )
+        return format_badge(text, background=color)
 
     status_badge.short_description = "Status"
 
@@ -189,7 +187,7 @@ class TaskAdmin(admin.ModelAdmin):
     readonly_fields = ("created_at", "updated_at")
 
     def title_display(self, obj):
-        return format_html("<strong>{}</strong>", obj.title)
+        return format_strong(obj.title)
 
     title_display.short_description = "Title"
 
@@ -200,11 +198,11 @@ class TaskAdmin(admin.ModelAdmin):
 
     def due_date_display(self, obj):
         if not obj.due_date:
-            return format_html("<span style='color:#999;'>No due date</span>")
-        elif obj.due_date < timezone.localdate():
-            return format_html("<span style='color:#dc3545;'>{}</span>", obj.due_date)
-        elif obj.due_date == timezone.localdate():
-            return format_html("<span style='color:#f39c12;'>Today</span>")
+            return format_placeholder(None, "No due date", "#999")
+        if obj.due_date < timezone.localdate():
+            return format_badge(obj.due_date, background="#dc3545")
+        if obj.due_date == timezone.localdate():
+            return format_badge("Today", background="#f39c12")
         return obj.due_date
 
     due_date_display.short_description = "Due Date"
@@ -217,11 +215,7 @@ class TaskAdmin(admin.ModelAdmin):
             "DONE": "#28a745",
         }
         color = color_map.get(obj.status, "#333")
-        return format_html(
-            "<span style='background:{}; color:white; padding:3px 8px; border-radius:6px; font-size:12px;'>{}</span>",
-            color,
-            obj.get_status_display(),
-        )
+        return format_badge(obj.get_status_display(), background=color)
 
     status_badge.short_description = "Status"
 
diff --git a/src/admin/services.py b/src/admin/services.py
index 5a53934..87c04e9 100644
--- a/src/admin/services.py
+++ b/src/admin/services.py
@@ -1,9 +1,17 @@
 from django.contrib import admin
 from django.utils import timezone
-from django.utils.html import format_html
 from django.utils.translation import gettext_lazy as _
 
-from src.admin.base import admin_site
+from src.admin.shared import (
+    admin_site,
+    format_badge,
+    format_boolean_icon,
+    format_currency,
+    format_link,
+    format_placeholder,
+    format_strong,
+    format_strong_with_subtext,
+)
 from src.models.services import Credential, Service
 
 
@@ -75,7 +83,7 @@ class ServiceAdmin(admin.ModelAdmin):
     readonly_fields = ("created_at", "updated_at")
 
     def name_display(self, obj):
-        return format_html("<strong>{}</strong>", obj.name)
+        return format_strong(obj.name)
 
     name_display.short_description = "Service"
 
@@ -93,28 +101,24 @@ class ServiceAdmin(admin.ModelAdmin):
             "OTHER": "#6c757d",
         }
         color = color_map.get(obj.service_type, "#333")
-        return format_html(
-            "<span style='background:{}; color:white; padding:3px 8px; border-radius:6px; font-size:12px;'>{}</span>",
-            color,
-            obj.get_service_type_display(),
-        )
+        return format_badge(obj.get_service_type_display(), background=color)
 
     type_badge.short_description = "Type"
 
     def cost_display(self, obj):
-        return format_html("<b>${:,.2f}</b>", obj.cost)
+        return format_currency(obj.cost)
 
     cost_display.short_description = "Cost"
 
     def renewal_price_display(self, obj):
-        return format_html("<b>${:,.2f}</b>", obj.renewal_price)
+        return format_currency(obj.renewal_price)
 
     renewal_price_display.short_description = "Renewal"
 
     def expiry_display(self, obj):
         """Color-coded expiry indicator."""
         if not obj.expiry_date:
-            return format_html("<span style='color:#888;'>—</span>")
+            return format_placeholder()
         today = timezone.localdate()
         delta = (obj.expiry_date - today).days
 
@@ -138,11 +142,7 @@ class ServiceAdmin(admin.ModelAdmin):
     expiry_display.short_description = "Expiry"
 
     def auto_renew_display(self, obj):
-        icon = "✅" if obj.auto_renew else "❌"
-        color = "#28a745" if obj.auto_renew else "#999"
-        return format_html(
-            f"<span style='color:{color}; font-size:14px;'>{icon}</span>"
-        )
+        return format_boolean_icon(obj.auto_renew)
 
     auto_renew_display.short_description = "Auto Renew"
 
@@ -183,23 +183,17 @@ class CredentialAdmin(admin.ModelAdmin):
 
     # --- DISPLAY HELPERS ---
     def service_display(self, obj):
-        return format_html(
-            "<strong>{}</strong><br><small>{}</small>",
-            obj.service.name,
-            obj.service.client.name,
-        )
+        return format_strong_with_subtext(obj.service.name, obj.service.client.name)
 
     service_display.short_description = "Service"
 
     def username_display(self, obj):
-        return obj.username or format_html("<span style='color:#888;'>—</span>")
+        return obj.username or format_placeholder()
 
     username_display.short_description = "Username"
 
     def url_display(self, obj):
-        if obj.url:
-            return format_html("<a href='{}' target='_blank'>{}</a>", obj.url, obj.url)
-        return format_html("<span style='color:#888;'>—</span>")
+        return format_link(obj.url)
 
     url_display.short_description = "URL"
 
diff --git a/src/admin/shared.py b/src/admin/shared.py
new file mode 100644
index 0000000..ac69b24
--- /dev/null
+++ b/src/admin/shared.py
@@ -0,0 +1,55 @@
+from django.utils.html import format_html
+from src.admin.base import * #noqa: F401
+
+def format_strong(text):
+    return format_html("<strong>{}</strong>", text)
+
+
+def format_strong_with_subtext(primary, secondary, secondary_color="#888"):
+    return format_html(
+        "<strong>{}</strong><br><small style='color: {};'>{}</small>",
+        primary,
+        secondary_color,
+        secondary if secondary else "—",
+    )
+
+
+def format_placeholder(value=None, placeholder="—", color="#888"):
+    return (
+        value
+        if value
+        else format_html("<span style='color:{};'>{}</span>", color, placeholder)
+    )
+
+
+def format_badge(label, background="#333", text_color="white"):
+    return format_html(
+        "<span style='background:{}; color:{}; padding:3px 8px; border-radius:6px; font-size:12px;'>{}</span>",
+        background,
+        text_color,
+        label,
+    )
+
+
+def format_currency(amount):
+    return format_html("<b>${:,.2f}</b>", amount) if amount is not None else "—"
+
+
+def format_boolean_icon(
+    flag, true_icon="✅", false_icon="❌", true_color="#28a745", false_color="#999"
+):
+    color = true_color if flag else false_color
+    icon = true_icon if flag else false_icon
+    return format_html(
+        "<span style='color:{}; font-size:14px;'>{}</span>",
+        color,
+        icon,
+    )
+
+
+def format_link(url, label=None):
+    return (
+        format_html("<a href='{}' target='_blank'>{}</a>", url, label or url)
+        if url
+        else format_placeholder()
+    )
\ No newline at end of file