diff --git a/src/app/dashboard/invoices/[id]/_components/pdf-download-button.tsx b/src/app/dashboard/invoices/[id]/_components/pdf-download-button.tsx
index c9f4607..db56b2e 100644
--- a/src/app/dashboard/invoices/[id]/_components/pdf-download-button.tsx
+++ b/src/app/dashboard/invoices/[id]/_components/pdf-download-button.tsx
@@ -39,7 +39,23 @@ export function PDFDownloadButton({
         throw new Error("Invoice not found");
       }
 
-      await generateInvoicePDF(invoiceData);
+      // Map invoice to PDF format with currency support
+      const pdfData = {
+        invoiceNumber: invoiceData.invoiceNumber,
+        invoicePrefix: invoiceData.invoicePrefix,
+        issueDate: new Date(invoiceData.issueDate),
+        dueDate: new Date(invoiceData.dueDate),
+        status: invoiceData.status,
+        totalAmount: invoiceData.totalAmount,
+        taxRate: invoiceData.taxRate,
+        currency: invoiceData.currency ?? "USD",
+        notes: invoiceData.notes,
+        business: invoiceData.business,
+        client: invoiceData.client,
+        items: invoiceData.items,
+      };
+
+      await generateInvoicePDF(pdfData);
       toast.success("PDF downloaded successfully");
     } catch (error) {
       console.error("PDF generation error:", error);
diff --git a/src/components/forms/invoice-form.tsx b/src/components/forms/invoice-form.tsx
index ab48108..719f0e2 100644
--- a/src/components/forms/invoice-form.tsx
+++ b/src/components/forms/invoice-form.tsx
@@ -15,6 +15,7 @@ import {
   SelectValue,
 } from "~/components/ui/select";
 import { DatePicker } from "~/components/ui/date-picker";
+import { Input } from "~/components/ui/input";
 import { NumberInput } from "~/components/ui/number-input";
 import { PageHeader } from "~/components/layout/page-header";
 import { InvoiceLineItems } from "./invoice-line-items";
@@ -80,6 +81,7 @@ export default function InvoiceForm({ invoiceId }: InvoiceFormProps) {
   // State
   const [formData, setFormData] = useState<InvoiceFormData>({
     invoiceNumber: `INV-${new Date().toISOString().slice(0, 10).replace(/-/g, "")}-${Date.now().toString().slice(-6)}`,
+    invoicePrefix: "#",
     businessId: "",
     clientId: "",
     issueDate: new Date(),
@@ -150,6 +152,7 @@ export default function InvoiceForm({ invoiceId }: InvoiceFormProps) {
           ) || [];
       setFormData({
         invoiceNumber: existingInvoice.invoiceNumber,
+        invoicePrefix: existingInvoice.invoicePrefix ?? "#",
         businessId: existingInvoice.businessId ?? "",
         clientId: existingInvoice.clientId,
         issueDate: new Date(existingInvoice.issueDate),
@@ -317,6 +320,7 @@ export default function InvoiceForm({ invoiceId }: InvoiceFormProps) {
     try {
       const payload = {
         invoiceNumber: formData.invoiceNumber,
+        invoicePrefix: formData.invoicePrefix,
         businessId: formData.businessId || "",
         clientId: formData.clientId,
         issueDate: formData.issueDate,
@@ -520,6 +524,19 @@ export default function InvoiceForm({ invoiceId }: InvoiceFormProps) {
                     />
                   </div>
                 </div>
+                <div className="grid grid-cols-1 gap-3 sm:grid-cols-3 sm:gap-4">
+                  <div className="space-y-2">
+                    <Label>Prefix</Label>
+                    <Input
+                      value={formData.invoicePrefix}
+                      onChange={(e) =>
+                        updateField("invoicePrefix", e.target.value)
+                      }
+                      placeholder="#"
+                      className="w-full"
+                    />
+                  </div>
+                </div>
                 <div className="grid grid-cols-2 gap-4">
                   <div className="space-y-2">
                     <Label>Tax Rate</Label>
diff --git a/src/components/forms/invoice/types.ts b/src/components/forms/invoice/types.ts
index 471907c..32b5a9d 100644
--- a/src/components/forms/invoice/types.ts
+++ b/src/components/forms/invoice/types.ts
@@ -4,30 +4,31 @@ export type ClientType = RouterOutputs["clients"]["getAll"][number];
 export type BusinessType = RouterOutputs["businesses"]["getAll"][number];
 
 export interface InvoiceItem {
-    id: string;
-    date: Date;
-    description: string;
-    hours: number;
-    rate: number;
-    amount: number;
+  id: string;
+  date: Date;
+  description: string;
+  hours: number;
+  rate: number;
+  amount: number;
 }
 
 export interface InvoiceFormData {
-    invoiceNumber: string;
-    businessId: string;
-    clientId: string;
-    issueDate: Date;
-    dueDate: Date;
-    status: "draft" | "sent" | "paid";
-    notes: string;
-    taxRate: number;
-    currency: string;
-    defaultHourlyRate: number | null;
-    items: InvoiceItem[];
+  invoiceNumber: string;
+  invoicePrefix: string;
+  businessId: string;
+  clientId: string;
+  issueDate: Date;
+  dueDate: Date;
+  status: "draft" | "sent" | "paid";
+  notes: string;
+  taxRate: number;
+  currency: string;
+  defaultHourlyRate: number | null;
+  items: InvoiceItem[];
 }
 
 export const STATUS_OPTIONS = [
-    { value: "draft", label: "Draft" },
-    { value: "sent", label: "Sent" },
-    { value: "paid", label: "Paid" },
+  { value: "draft", label: "Draft" },
+  { value: "sent", label: "Sent" },
+  { value: "paid", label: "Paid" },
 ] as const;
diff --git a/src/lib/pdf-export.tsx b/src/lib/pdf-export.tsx
index d2210fa..7637192 100644
--- a/src/lib/pdf-export.tsx
+++ b/src/lib/pdf-export.tsx
@@ -5,11 +5,26 @@ import {
   View,
   Image,
   StyleSheet,
+  Font,
   pdf,
 } from "@react-pdf/renderer";
 import { saveAs } from "file-saver";
 import React from "react";
 
+Font.register({
+  family: "Frutiger",
+  fonts: [
+    {
+      src: "/fonts/frutiger/Frutiger.ttf",
+      fontWeight: "normal",
+    },
+    {
+      src: "/fonts/frutiger/Frutiger_bold.ttf",
+      fontWeight: "bold",
+    },
+  ],
+});
+
 // Fallback download function for better browser compatibility
 function downloadBlob(blob: Blob, filename: string): void {
   try {
@@ -56,11 +71,13 @@ function downloadBlob(blob: Blob, filename: string): void {
 
 interface InvoiceData {
   invoiceNumber: string;
+  invoicePrefix?: string | null;
   issueDate: Date;
   dueDate: Date;
   status: string;
   totalAmount: number;
   taxRate: number;
+  currency?: string | null;
   notes?: string | null;
   business?: {
     name: string;
@@ -100,7 +117,7 @@ const styles = StyleSheet.create({
   page: {
     flexDirection: "column",
     backgroundColor: "#ffffff",
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     fontSize: 10,
     paddingTop: 40,
     paddingBottom: 80,
@@ -127,7 +144,7 @@ const styles = StyleSheet.create({
   },
 
   businessName: {
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     fontSize: 18,
     color: "#0f0f0f",
     marginBottom: 4,
@@ -135,7 +152,7 @@ const styles = StyleSheet.create({
 
   businessInfo: {
     fontSize: 10,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#6b7280",
     lineHeight: 1.4,
     marginBottom: 3,
@@ -143,7 +160,7 @@ const styles = StyleSheet.create({
 
   businessAddress: {
     fontSize: 10,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#6b7280",
     lineHeight: 1.4,
     marginTop: 4,
@@ -156,14 +173,14 @@ const styles = StyleSheet.create({
 
   invoiceTitle: {
     fontSize: 28,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#0f0f0f",
     marginBottom: 8,
   },
 
   invoiceNumber: {
     fontSize: 14,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#374151",
     marginBottom: 4,
   },
@@ -172,7 +189,7 @@ const styles = StyleSheet.create({
     paddingHorizontal: 8,
     paddingVertical: 4,
     fontSize: 11,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     textAlign: "center",
   },
 
@@ -200,13 +217,13 @@ const styles = StyleSheet.create({
 
   sectionTitle: {
     fontSize: 12,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#0f0f0f",
     marginBottom: 12,
   },
 
   clientName: {
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     fontSize: 12,
     color: "#0f0f0f",
     marginBottom: 2,
@@ -214,7 +231,7 @@ const styles = StyleSheet.create({
 
   clientInfo: {
     fontSize: 10,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#6b7280",
     lineHeight: 1.4,
     marginBottom: 2,
@@ -222,7 +239,7 @@ const styles = StyleSheet.create({
 
   clientAddress: {
     fontSize: 10,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#6b7280",
     lineHeight: 1.4,
     marginTop: 4,
@@ -236,14 +253,14 @@ const styles = StyleSheet.create({
 
   detailLabel: {
     fontSize: 11,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#6b7280",
     flex: 1,
   },
 
   detailValue: {
     fontSize: 10,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#0f0f0f",
     flex: 1,
     textAlign: "right",
@@ -259,21 +276,21 @@ const styles = StyleSheet.create({
 
   notesTitle: {
     fontSize: 11,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#0f0f0f",
     marginBottom: 6,
   },
 
   notesContent: {
     fontSize: 10,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#374151",
     lineHeight: 1.4,
   },
 
   businessContact: {
     fontSize: 9,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#6b7280",
     lineHeight: 1.4,
   },
@@ -297,7 +314,7 @@ const styles = StyleSheet.create({
 
   abridgedBusinessName: {
     fontSize: 12,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#0f0f0f",
   },
 
@@ -309,13 +326,13 @@ const styles = StyleSheet.create({
 
   abridgedInvoiceTitle: {
     fontSize: 14,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#0f0f0f",
   },
 
   abridgedInvoiceNumber: {
     fontSize: 12,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#374151",
   },
 
@@ -335,7 +352,7 @@ const styles = StyleSheet.create({
 
   tableHeaderCell: {
     fontSize: 10,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#374151",
     paddingHorizontal: 4,
   },
@@ -380,7 +397,7 @@ const styles = StyleSheet.create({
     color: "#0f0f0f",
     paddingHorizontal: 4,
     paddingVertical: 2,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
   },
 
   tableCellDate: {
@@ -396,7 +413,7 @@ const styles = StyleSheet.create({
     paddingHorizontal: 2,
     textAlign: "left",
     flexWrap: "wrap",
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
   },
 
   tableCellHours: {
@@ -454,7 +471,7 @@ const styles = StyleSheet.create({
   totalLabel: {
     fontSize: 11,
     color: "#6b7280",
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
   },
 
   totalAmount: {
@@ -472,7 +489,7 @@ const styles = StyleSheet.create({
 
   finalTotalLabel: {
     fontSize: 12,
-    fontFamily: "Helvetica-Bold",
+    fontFamily: "Frutiger-Bold",
     color: "#0f0f0f",
   },
 
@@ -484,7 +501,7 @@ const styles = StyleSheet.create({
 
   itemCount: {
     fontSize: 9,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#9ca3af",
     textAlign: "center",
     marginTop: 6,
@@ -511,16 +528,16 @@ const styles = StyleSheet.create({
 
   pageNumber: {
     fontSize: 10,
-    fontFamily: "Helvetica",
+    fontFamily: "Frutiger",
     color: "#6b7280",
   },
 });
 
 // Helper functions
-const formatCurrency = (amount: number) => {
+const formatCurrency = (amount: number, currency = "USD") => {
   return new Intl.NumberFormat("en-US", {
     style: "currency",
-    currency: "USD",
+    currency,
   }).format(amount);
 };
 
@@ -574,7 +591,7 @@ function estimateTextHeight(
 ): number {
   if (!text) return fontSize * lineHeight;
 
-  // Rough character width estimation for Helvetica at given font size
+  // Rough character width estimation for Frutiger at given font size
   const avgCharWidth = fontSize * 0.6;
   const maxCharsPerLine = Math.floor(maxWidth / avgCharWidth);
 
@@ -807,7 +824,10 @@ const DenseHeader: React.FC<{ invoice: InvoiceData }> = ({ invoice }) => (
 
       <View style={styles.invoiceSection}>
         <Text style={styles.invoiceTitle}>INVOICE</Text>
-        <Text style={styles.invoiceNumber}>#{invoice.invoiceNumber}</Text>
+        <Text style={styles.invoiceNumber}>
+          {invoice.invoicePrefix ?? "#"}
+          {invoice.invoiceNumber}
+        </Text>
         <View style={getStatusStyle(invoice.status)}>
           <Text>{getStatusLabel(invoice.status)}</Text>
         </View>
@@ -873,7 +893,10 @@ const AbridgedHeader: React.FC<{ invoice: InvoiceData }> = ({ invoice }) => (
     </Text>
     <View style={styles.abridgedInvoiceInfo}>
       <Text style={styles.abridgedInvoiceTitle}>INVOICE</Text>
-      <Text style={styles.abridgedInvoiceNumber}>#{invoice.invoiceNumber}</Text>
+      <Text style={styles.abridgedInvoiceNumber}>
+        {invoice.invoicePrefix ?? "#"}
+        {invoice.invoiceNumber}
+      </Text>
     </View>
   </View>
 );
@@ -922,7 +945,7 @@ const Footer: React.FC = () => (
       <Text
         style={{
           fontSize: 9,
-          fontFamily: "Helvetica",
+          fontFamily: "Frutiger",
           color: "#6b7280",
           marginLeft: 8,
         }}
@@ -944,8 +967,10 @@ const TotalsSection: React.FC<{
   invoice: InvoiceData;
   items: Array<NonNullable<InvoiceData["items"]>[0]>;
 }> = ({ invoice, items }) => {
+  const currency = invoice.currency ?? "USD";
   const subtotal = items.reduce((sum, item) => sum + (item?.amount ?? 0), 0);
   const taxAmount = (subtotal * invoice.taxRate) / 100;
+  const total = subtotal + taxAmount;
 
   return (
     <View style={styles.totalsContainer}>
@@ -953,7 +978,7 @@ const TotalsSection: React.FC<{
         <Text
           style={{
             fontSize: 11,
-            fontFamily: "Helvetica-Bold",
+            fontFamily: "Frutiger-Bold",
             color: "#0f0f0f",
             textAlign: "center",
             marginBottom: 8,
@@ -965,20 +990,24 @@ const TotalsSection: React.FC<{
 
         <View style={styles.totalRow}>
           <Text style={styles.totalLabel}>Subtotal:</Text>
-          <Text style={styles.totalAmount}>{formatCurrency(subtotal)}</Text>
+          <Text style={styles.totalAmount}>
+            {formatCurrency(subtotal, currency)}
+          </Text>
         </View>
 
         {invoice.taxRate > 0 && (
           <View style={styles.totalRow}>
             <Text style={styles.totalLabel}>Tax ({invoice.taxRate}%):</Text>
-            <Text style={styles.totalAmount}>{formatCurrency(taxAmount)}</Text>
+            <Text style={styles.totalAmount}>
+              {formatCurrency(taxAmount, currency)}
+            </Text>
           </View>
         )}
 
         <View style={styles.finalTotalRow}>
           <Text style={styles.finalTotalLabel}>TOTAL:</Text>
           <Text style={styles.finalTotalAmount}>
-            {formatCurrency(invoice.totalAmount)}
+            {formatCurrency(total, currency)}
           </Text>
         </View>
 
@@ -994,6 +1023,7 @@ const TotalsSection: React.FC<{
 const InvoicePDF: React.FC<{ invoice: InvoiceData }> = ({ invoice }) => {
   const items = invoice.items?.filter(Boolean) ?? [];
   const paginatedItems = paginateItems(items, Boolean(invoice.notes));
+  const currency = invoice.currency ?? "USD";
 
   return (
     <Document>
@@ -1040,12 +1070,12 @@ const InvoicePDF: React.FC<{ invoice: InvoiceData }> = ({ invoice }) => {
                           {item.hours}
                         </Text>
                         <Text style={[styles.tableCell, styles.tableCellRate]}>
-                          {formatCurrency(item.rate)}
+                          {formatCurrency(item.rate, currency)}
                         </Text>
                         <Text
                           style={[styles.tableCell, styles.tableCellAmount]}
                         >
-                          {formatCurrency(item.amount)}
+                          {formatCurrency(item.amount, currency)}
                         </Text>
                       </View>
                     ),
diff --git a/src/server/api/routers/invoices.ts b/src/server/api/routers/invoices.ts
index 311370c..65e41c3 100644
--- a/src/server/api/routers/invoices.ts
+++ b/src/server/api/routers/invoices.ts
@@ -18,6 +18,7 @@ const invoiceItemSchema = z.object({
 
 const createInvoiceSchema = z.object({
   invoiceNumber: z.string().min(1, "Invoice number is required"),
+  invoicePrefix: z.string().optional().default("#"),
   businessId: z
     .string()
     .min(1, "Business is required")
@@ -416,11 +417,17 @@ export const invoicesRouter = createTRPCRouter({
         });
 
         if (!invoice) {
-          throw new TRPCError({ code: "NOT_FOUND", message: "Invoice not found" });
+          throw new TRPCError({
+            code: "NOT_FOUND",
+            message: "Invoice not found",
+          });
         }
 
         if (invoice.createdById !== ctx.session.user.id) {
-          throw new TRPCError({ code: "FORBIDDEN", message: "You don't have permission to update this invoice" });
+          throw new TRPCError({
+            code: "FORBIDDEN",
+            message: "You don't have permission to update this invoice",
+          });
         }
 
         await ctx.db
@@ -428,18 +435,27 @@ export const invoicesRouter = createTRPCRouter({
           .set({ status: input.status, updatedAt: new Date() })
           .where(eq(invoices.id, input.id));
 
-        return { success: true, message: `Invoice status updated to ${input.status}` };
+        return {
+          success: true,
+          message: `Invoice status updated to ${input.status}`,
+        };
       } catch (error) {
         if (error instanceof TRPCError) throw error;
-        throw new TRPCError({ code: "INTERNAL_SERVER_ERROR", message: "Failed to update invoice status", cause: error });
+        throw new TRPCError({
+          code: "INTERNAL_SERVER_ERROR",
+          message: "Failed to update invoice status",
+          cause: error,
+        });
       }
     }),
 
   bulkUpdateStatus: protectedProcedure
-    .input(z.object({
-      ids: z.array(z.string()).min(1),
-      status: z.enum(["draft", "sent", "paid"]),
-    }))
+    .input(
+      z.object({
+        ids: z.array(z.string()).min(1),
+        status: z.enum(["draft", "sent", "paid"]),
+      }),
+    )
     .mutation(async ({ ctx, input }) => {
       // Only update invoices owned by this user
       const owned = await ctx.db.query.invoices.findMany({
@@ -452,7 +468,10 @@ export const invoicesRouter = createTRPCRouter({
         .map((inv) => inv.id);
 
       if (ownedIds.length === 0) {
-        throw new TRPCError({ code: "NOT_FOUND", message: "No matching invoices found" });
+        throw new TRPCError({
+          code: "NOT_FOUND",
+          message: "No matching invoices found",
+        });
       }
 
       await ctx.db
@@ -476,7 +495,10 @@ export const invoicesRouter = createTRPCRouter({
         .map((inv) => inv.id);
 
       if (ownedIds.length === 0) {
-        throw new TRPCError({ code: "NOT_FOUND", message: "No matching invoices found" });
+        throw new TRPCError({
+          code: "NOT_FOUND",
+          message: "No matching invoices found",
+        });
       }
 
       await ctx.db.delete(invoices).where(inArray(invoices.id, ownedIds));
diff --git a/src/server/db/schema.ts b/src/server/db/schema.ts
index d69fe4e..f4025f3 100644
--- a/src/server/db/schema.ts
+++ b/src/server/db/schema.ts
@@ -1,7 +1,6 @@
 import { relations, sql } from "drizzle-orm";
 import { index, pgTableCreator } from "drizzle-orm/pg-core";
 
-
 /**
  * This is an example of how to use the multi-project schema feature of Drizzle ORM. Use the same
  * database instance for multiple projects.
@@ -22,7 +21,11 @@ export const users = createTable("user", (d) => ({
   emailVerified: d.boolean().default(false).notNull(),
   image: d.varchar({ length: 255 }),
   createdAt: d.timestamp().notNull().defaultNow(),
-  updatedAt: d.timestamp().notNull().defaultNow().$onUpdate(() => new Date()),
+  updatedAt: d
+    .timestamp()
+    .notNull()
+    .defaultNow()
+    .$onUpdate(() => new Date()),
   password: d.varchar({ length: 255 }), // Matched DB: varchar(255)
   resetToken: d.varchar({ length: 255 }), // Matched DB: varchar(255)
   resetTokenExpiry: d.timestamp(),
@@ -47,7 +50,11 @@ export const usersRelations = relations(users, ({ many }) => ({
 export const accounts = createTable(
   "account",
   (d) => ({
-    id: d.text().notNull().primaryKey().$defaultFn(() => crypto.randomUUID()), // Matched DB: text
+    id: d
+      .text()
+      .notNull()
+      .primaryKey()
+      .$defaultFn(() => crypto.randomUUID()), // Matched DB: text
     userId: d
       .varchar({ length: 255 })
       .notNull()
@@ -62,11 +69,13 @@ export const accounts = createTable(
     idToken: d.text(),
     password: d.text(), // Matched DB: text
     createdAt: d.timestamp().notNull().defaultNow(),
-    updatedAt: d.timestamp().notNull().defaultNow().$onUpdate(() => new Date()),
+    updatedAt: d
+      .timestamp()
+      .notNull()
+      .defaultNow()
+      .$onUpdate(() => new Date()),
   }),
-  (t) => [
-    index("account_userId_idx").on(t.userId),
-  ],
+  (t) => [index("account_userId_idx").on(t.userId)],
 );
 
 export const accountsRelations = relations(accounts, ({ one }) => ({
@@ -76,7 +85,11 @@ export const accountsRelations = relations(accounts, ({ one }) => ({
 export const sessions = createTable(
   "session",
   (d) => ({
-    id: d.text().notNull().primaryKey().$defaultFn(() => crypto.randomUUID()), // Matched DB: text
+    id: d
+      .text()
+      .notNull()
+      .primaryKey()
+      .$defaultFn(() => crypto.randomUUID()), // Matched DB: text
     userId: d
       .varchar({ length: 255 })
       .notNull()
@@ -86,7 +99,11 @@ export const sessions = createTable(
     ipAddress: d.text(), // Matched DB: text
     userAgent: d.text(), // Matched DB: text
     createdAt: d.timestamp().notNull().defaultNow(),
-    updatedAt: d.timestamp().notNull().defaultNow().$onUpdate(() => new Date()),
+    updatedAt: d
+      .timestamp()
+      .notNull()
+      .defaultNow()
+      .$onUpdate(() => new Date()),
   }),
   (t) => [index("session_userId_idx").on(t.userId)],
 );
@@ -98,12 +115,20 @@ export const sessionsRelations = relations(sessions, ({ one }) => ({
 export const verificationTokens = createTable(
   "verification_token",
   (d) => ({
-    id: d.text().notNull().primaryKey().$defaultFn(() => crypto.randomUUID()), // Matched DB: text
+    id: d
+      .text()
+      .notNull()
+      .primaryKey()
+      .$defaultFn(() => crypto.randomUUID()), // Matched DB: text
     identifier: d.varchar({ length: 255 }).notNull(),
     value: d.varchar({ length: 255 }).notNull(),
     expiresAt: d.timestamp().notNull(),
     createdAt: d.timestamp().notNull().defaultNow(),
-    updatedAt: d.timestamp().notNull().defaultNow().$onUpdate(() => new Date()),
+    updatedAt: d
+      .timestamp()
+      .notNull()
+      .defaultNow()
+      .$onUpdate(() => new Date()),
   }),
   (t) => [index("verification_token_identifier_idx").on(t.identifier)],
 );
@@ -111,14 +136,25 @@ export const verificationTokens = createTable(
 export const ssoProviders = createTable(
   "sso_provider",
   (d) => ({
-    id: d.varchar({ length: 255 }).notNull().primaryKey().$defaultFn(() => crypto.randomUUID()),
+    id: d
+      .varchar({ length: 255 })
+      .notNull()
+      .primaryKey()
+      .$defaultFn(() => crypto.randomUUID()),
     providerId: d.varchar({ length: 255 }).notNull().unique(),
-    userId: d.varchar({ length: 255 }).notNull().references(() => users.id),
+    userId: d
+      .varchar({ length: 255 })
+      .notNull()
+      .references(() => users.id),
     redirectURI: d.varchar({ length: 255 }).notNull().default(""), // Added detailed fields
     oidcConfig: d.text(),
     samlConfig: d.text(),
     createdAt: d.timestamp().notNull().defaultNow(),
-    updatedAt: d.timestamp().notNull().defaultNow().$onUpdate(() => new Date()),
+    updatedAt: d
+      .timestamp()
+      .notNull()
+      .defaultNow()
+      .$onUpdate(() => new Date()),
   }),
   (t) => [index("sso_provider_user_id_idx").on(t.userId)],
 );
@@ -230,6 +266,7 @@ export const invoices = createTable(
       .primaryKey()
       .$defaultFn(() => crypto.randomUUID()),
     invoiceNumber: d.varchar({ length: 100 }).notNull(),
+    invoicePrefix: d.varchar({ length: 20 }).default("#"),
     businessId: d.varchar({ length: 255 }).references(() => businesses.id),
     clientId: d
       .varchar({ length: 255 })
@@ -411,4 +448,3 @@ export const invoiceTemplatesRelations = relations(
     }),
   }),
 );
-