diff --git a/src/app/api/v1/interests/[id]/external-eoi/route.ts b/src/app/api/v1/interests/[id]/external-eoi/route.ts
index b0261fa7..1ad770a0 100644
--- a/src/app/api/v1/interests/[id]/external-eoi/route.ts
+++ b/src/app/api/v1/interests/[id]/external-eoi/route.ts
@@ -79,6 +79,13 @@ export const POST = withAuth(
         (form.get('cancelActiveDocumentId') as string | null) ?? null;
       const cancelActiveDocumentId = cancelActiveDocumentIdRaw?.trim() || undefined;
 
+      // Which signed doc this is. Defaults to 'eoi' (legacy callers); the
+      // reservation/contract tabs post their own type so it files correctly.
+      const docTypeRaw = (form.get('docType') as string | null)?.trim() ?? 'eoi';
+      const docType = (
+        ['eoi', 'reservation', 'contract'].includes(docTypeRaw) ? docTypeRaw : 'eoi'
+      ) as 'eoi' | 'reservation' | 'contract';
+
       const result = await uploadExternallySignedEoi({
         interestId,
         portId: ctx.portId,
@@ -94,6 +101,7 @@ export const POST = withAuth(
         signatories,
         notes,
         cancelActiveDocumentId,
+        docType,
         meta: {
           userId: ctx.userId,
           portId: ctx.portId,
diff --git a/src/components/interests/external-eoi-upload-dialog.tsx b/src/components/interests/external-eoi-upload-dialog.tsx
index cdccbfab..4ac1028a 100644
--- a/src/components/interests/external-eoi-upload-dialog.tsx
+++ b/src/components/interests/external-eoi-upload-dialog.tsx
@@ -55,6 +55,10 @@ interface Props {
    *  from the active Documenso EOI's signers). Falls through to the
    *  client-only seed when omitted or empty. */
   prefillSignatories?: SignatoryRow[];
+  /** Which signed document this upload is for. Defaults to 'eoi'; the
+   *  reservation/contract tabs pass their own type so the file is filed +
+   *  the deal advanced under the right kind (EOI-specific UI is hidden). */
+  docType?: 'eoi' | 'reservation' | 'contract';
 }
 
 export function ExternalEoiUploadDialog({
@@ -63,7 +67,15 @@ export function ExternalEoiUploadDialog({
   interestId,
   onSuccess,
   prefillSignatories,
+  docType = 'eoi',
 }: Props) {
+  const DOC_LABEL =
+    docType === 'reservation'
+      ? 'reservation agreement'
+      : docType === 'contract'
+        ? 'contract'
+        : 'EOI';
+  const isEoi = docType === 'eoi';
   const qc = useQueryClient();
   const [file, setFile] = useState<File | null>(null);
   const [title, setTitle] = useState('');
@@ -173,7 +185,7 @@ export function ExternalEoiUploadDialog({
       apiFetch<{
         data: Array<{ id: string; status: string; title: string; createdAt: string }>;
       }>(`/api/v1/documents?interestId=${interestId}&documentType=eoi`),
-    enabled: open,
+    enabled: open && isEoi,
     staleTime: 30_000,
   });
   const activeEoi = useMemo(
@@ -191,12 +203,12 @@ export function ExternalEoiUploadDialog({
       .filter((m): m is string => !!m);
     const berthLabel = moorings.length > 0 ? formatBerthRange(moorings) : null;
     const clientName = interestData?.clientName ?? null;
-    const parts = ['External EOI'];
+    const parts = [`External ${DOC_LABEL}`];
     if (clientName) parts.push(clientName);
     if (berthLabel) parts.push(berthLabel);
     parts.push(date);
     return parts.join(' - ');
-  }, [interestData, berthsData, signedAt]);
+  }, [interestData, berthsData, signedAt, DOC_LABEL]);
 
   // The title input is controlled with `displayTitle` (derived from
   // either the rep's typed value or the auto-derived default). Reps
@@ -226,7 +238,8 @@ export function ExternalEoiUploadDialog({
       // When a generated EOI is active AND the rep didn't opt out via the
       // Advanced toggle, tell the server to cancel it as part of this
       // upload so the deal carries one canonical EOI.
-      if (activeEoi && replaceMode === 'replace') {
+      form.append('docType', docType);
+      if (isEoi && activeEoi && replaceMode === 'replace') {
         form.append('cancelActiveDocumentId', activeEoi.id);
       }
       const res = await fetch(`/api/v1/interests/${interestId}/external-eoi`, {
@@ -250,7 +263,7 @@ export function ExternalEoiUploadDialog({
       // sync are skipped. Failures here don't undo the upload (the doc
       // is already filed) but surface as a non-blocking toast so the
       // rep knows the flag didn't propagate.
-      if (inBundleBerths.length > 0) {
+      if (isEoi && inBundleBerths.length > 0) {
         const targets = inBundleBerths.filter((b) => b.isSpecificInterest !== publicFlagChecked);
         if (targets.length > 0) {
           try {
@@ -270,8 +283,8 @@ export function ExternalEoiUploadDialog({
       }
       toast.success(
         stageChanged
-          ? 'External EOI uploaded. Stage advanced to EOI Signed.'
-          : 'External EOI uploaded. Filed against this deal (stage unchanged).',
+          ? `Signed ${DOC_LABEL} uploaded. Pipeline stage advanced.`
+          : `Signed ${DOC_LABEL} uploaded. Filed against this deal (stage unchanged).`,
       );
       qc.invalidateQueries({ queryKey: ['interests', interestId] });
       qc.invalidateQueries({ queryKey: ['interests'] });
@@ -293,16 +306,16 @@ export function ExternalEoiUploadDialog({
     <Dialog open={open} onOpenChange={onOpenChange}>
       <DialogContent className="sm:max-w-2xl lg:max-w-4xl">
         <DialogHeader>
-          <DialogTitle>Upload externally-signed EOI</DialogTitle>
+          <DialogTitle>Upload externally-signed {DOC_LABEL}</DialogTitle>
           <DialogDescription>
-            For EOIs signed outside our signing service (paper, in person, alternate e-sign vendor).
-            The uploaded PDF is filed against this interest and the pipeline stage is advanced to
-            EOI Signed.
+            For a {DOC_LABEL} signed outside our signing service (paper, in person, alternate e-sign
+            vendor). The uploaded PDF is filed against this interest and the pipeline stage is
+            advanced accordingly.
           </DialogDescription>
         </DialogHeader>
 
         <div className="space-y-3 py-2">
-          {activeEoi ? (
+          {isEoi && activeEoi ? (
             <div className="rounded-md border border-amber-300 bg-amber-50 p-3 text-sm dark:border-amber-900 dark:bg-amber-950/40">
               <p className="font-medium text-amber-900 dark:text-amber-100">
                 A generated EOI is already in flight on this deal.
@@ -466,7 +479,7 @@ export function ExternalEoiUploadDialog({
               className="mt-1"
             />
           </div>
-          {inBundleBerths.length > 0 ? (
+          {isEoi && inBundleBerths.length > 0 ? (
             <div className="rounded-md border bg-muted/40 p-3 text-sm">
               <label className="flex cursor-pointer items-start gap-2">
                 <input
diff --git a/src/components/interests/interest-contract-tab.tsx b/src/components/interests/interest-contract-tab.tsx
index 5923ec55..27fa38a3 100644
--- a/src/components/interests/interest-contract-tab.tsx
+++ b/src/components/interests/interest-contract-tab.tsx
@@ -167,17 +167,17 @@ export function InterestContractTab({ interestId, clientId: _clientId }: Interes
         </section>
       )}
 
-      {/* Reuses the external-EOI upload dialog. The endpoint
-          `/api/v1/interests/{id}/external-eoi` is EOI-specific today
-           -  for contract paper-uploads we'll need the equivalent
-          contract endpoint (deferred to a follow-up; the dialog UI
-          is the pattern we'll clone). For now the flow is documented
-          as 'coming soon' rather than misrouting through EOI. */}
+      {/* Shared upload dialog, parameterised by docType. With
+          docType="contract" the service files the PDF as a contract,
+          sets contractDocStatus='signed' + contractSignedAt, advances
+          the stage to `contract`, and fires the contract_signed berth
+          rule (no EOI-specific banner / public-map flip). */}
       {uploadSignedOpen && (
         <ExternalEoiUploadDialog
           open={uploadSignedOpen}
           onOpenChange={setUploadSignedOpen}
           interestId={interestId}
+          docType="contract"
         />
       )}
 
diff --git a/src/components/interests/interest-reservation-tab.tsx b/src/components/interests/interest-reservation-tab.tsx
index 590b332b..39208677 100644
--- a/src/components/interests/interest-reservation-tab.tsx
+++ b/src/components/interests/interest-reservation-tab.tsx
@@ -170,17 +170,17 @@ export function InterestReservationTab({
         </section>
       )}
 
-      {/* Reuses the external-EOI upload dialog. The endpoint
-          `/api/v1/interests/{id}/external-eoi` is EOI-specific today
-           -  for reservation paper-uploads we'll need the equivalent
-          reservation endpoint (deferred to a follow-up; the dialog UI
-          is the pattern we'll clone). For now the flow is documented
-          as 'coming soon' rather than misrouting through EOI. */}
+      {/* Shared upload dialog, parameterised by docType. With
+          docType="reservation" the service files the PDF as a
+          reservation_agreement, sets reservationDocStatus='signed' +
+          reservationSignedAt, and advances the stage to `reservation`
+          (no EOI-specific banner / public-map flip). */}
       {uploadSignedOpen && (
         <ExternalEoiUploadDialog
           open={uploadSignedOpen}
           onOpenChange={setUploadSignedOpen}
           interestId={interestId}
+          docType="reservation"
         />
       )}
 
diff --git a/src/lib/services/external-eoi.service.ts b/src/lib/services/external-eoi.service.ts
index 91bd28df..a1cfc416 100644
--- a/src/lib/services/external-eoi.service.ts
+++ b/src/lib/services/external-eoi.service.ts
@@ -21,6 +21,63 @@ import { createAuditLog, type AuditMeta } from '@/lib/audit';
 import { canonicalizeStage, type PipelineStage } from '@/lib/constants';
 import { CodedError, ConflictError, NotFoundError, ValidationError } from '@/lib/errors';
 import { emitToRoom } from '@/lib/socket/server';
+import type { ExternalSignedDocType } from '@/lib/services/external-signing.service';
+
+/**
+ * Per-doc-type config for an externally-signed *upload* (file present).
+ * Mirrors external-signing.service's no-file status/rule maps and adds the
+ * storage / document-type / stage-advance details the file path needs, so the
+ * one upload service correctly files an EOI, a reservation agreement, OR a
+ * contract instead of always filing as an EOI.
+ */
+const UPLOAD_CONFIG: Record<
+  ExternalSignedDocType,
+  {
+    documentType: 'eoi' | 'reservation_agreement' | 'contract';
+    fileCategory: 'eoi' | 'contract';
+    storagePrefix: 'eoi-signed' | 'reservation-signed' | 'contract-signed';
+    docStatusCol: 'eoiDocStatus' | 'reservationDocStatus' | 'contractDocStatus';
+    dateCol: 'dateEoiSigned' | 'dateReservationSigned' | 'dateContractSigned';
+    targetStage: PipelineStage;
+    advanceFrom: PipelineStage[];
+    rule: 'eoi_signed' | 'contract_signed' | null;
+    label: string;
+  }
+> = {
+  eoi: {
+    documentType: 'eoi',
+    fileCategory: 'eoi',
+    storagePrefix: 'eoi-signed',
+    docStatusCol: 'eoiDocStatus',
+    dateCol: 'dateEoiSigned',
+    targetStage: 'eoi',
+    advanceFrom: ['enquiry', 'qualified', 'nurturing'],
+    rule: 'eoi_signed',
+    label: 'EOI',
+  },
+  reservation: {
+    documentType: 'reservation_agreement',
+    fileCategory: 'contract',
+    storagePrefix: 'reservation-signed',
+    docStatusCol: 'reservationDocStatus',
+    dateCol: 'dateReservationSigned',
+    targetStage: 'reservation',
+    advanceFrom: ['enquiry', 'qualified', 'nurturing', 'eoi'],
+    rule: null,
+    label: 'reservation agreement',
+  },
+  contract: {
+    documentType: 'contract',
+    fileCategory: 'contract',
+    storagePrefix: 'contract-signed',
+    docStatusCol: 'contractDocStatus',
+    dateCol: 'dateContractSigned',
+    targetStage: 'contract',
+    advanceFrom: ['enquiry', 'qualified', 'nurturing', 'eoi', 'reservation', 'deposit_paid'],
+    rule: 'contract_signed',
+    label: 'contract',
+  },
+};
 
 /** A single signatory on an externally-signed document. */
 export interface ExternalSignatory {
@@ -59,11 +116,17 @@ export interface ExternalEoiInput {
    * Idempotent — already-cancelled / wrong-port ids are ignored.
    */
   cancelActiveDocumentId?: string;
+  /** Which signed document this upload represents. Defaults to 'eoi' for
+   *  backward compatibility; reservation/contract tabs pass their own type so
+   *  the file is filed + the interest advanced under the correct kind. */
+  docType?: ExternalSignedDocType;
   meta: AuditMeta;
 }
 
 export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
   const { interestId, portId, fileData, meta } = input;
+  const docType: ExternalSignedDocType = input.docType ?? 'eoi';
+  const cfg = UPLOAD_CONFIG[docType];
 
   if (fileData.size <= 0) throw new ValidationError('Empty file');
   if (fileData.size > 25 * 1024 * 1024) {
@@ -73,7 +136,7 @@ export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
     fileData.mimeType !== 'application/pdf' &&
     !fileData.originalName.toLowerCase().endsWith('.pdf')
   ) {
-    throw new ValidationError('Only PDF uploads are accepted for signed EOIs');
+    throw new ValidationError(`Only PDF uploads are accepted for signed ${cfg.label}s`);
   }
 
   const interest = await db.query.interests.findFirst({
@@ -106,7 +169,7 @@ export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
 
   const documentId = crypto.randomUUID();
   const fileId = crypto.randomUUID();
-  const storagePath = buildStoragePath(port.slug, 'eoi-signed', documentId, fileId, 'pdf');
+  const storagePath = buildStoragePath(port.slug, cfg.storagePrefix, documentId, fileId, 'pdf');
 
   // Upload to storage FIRST so we have a stable key for the DB rows,
   // then commit all four DB writes in one transaction. If the tx fails
@@ -120,7 +183,8 @@ export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
   });
 
   const title =
-    input.title ?? `External EOI - ${(input.signedAt ?? new Date()).toISOString().slice(0, 10)}`;
+    input.title ??
+    `External ${cfg.label} - ${(input.signedAt ?? new Date()).toISOString().slice(0, 10)}`;
 
   const result = await db.transaction(async (tx) => {
     const [fileRecord] = await tx
@@ -134,7 +198,7 @@ export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
         sizeBytes: String(fileData.size),
         storagePath,
         storageBucket: env.MINIO_BUCKET,
-        category: 'eoi',
+        category: cfg.fileCategory,
         uploadedBy: meta.userId,
       })
       .returning();
@@ -152,7 +216,7 @@ export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
         interestId,
         clientId: interest.clientId,
         yachtId: interest.yachtId,
-        documentType: 'eoi',
+        documentType: cfg.documentType,
         title,
         status: 'completed',
         isManualUpload: true,
@@ -217,27 +281,26 @@ export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
     //      'deposit_paid' / 'contract' stages (stays put).
     const stageBeforeAdvance = interest.pipelineStage as PipelineStage | null | undefined;
     const canonicalStage = canonicalizeStage(stageBeforeAdvance);
-    const shouldAdvanceStage =
-      canonicalStage === 'enquiry' ||
-      canonicalStage === 'qualified' ||
-      canonicalStage === 'nurturing';
+    const shouldAdvanceStage = cfg.advanceFrom.includes(canonicalStage);
 
-    await tx
-      .update(interests)
-      .set({
-        dateEoiSigned: interest.dateEoiSigned ?? input.signedAt ?? new Date(),
-        eoiStatus: 'signed',
-        eoiDocStatus: 'signed',
-        ...(shouldAdvanceStage ? { pipelineStage: 'eoi' as const } : {}),
-        updatedAt: new Date(),
-      })
-      .where(eq(interests.id, interestId));
+    const existingDate = (interest[cfg.dateCol] as Date | null) ?? null;
+    const interestPatch = {
+      [cfg.dateCol]: existingDate ?? input.signedAt ?? new Date(),
+      [cfg.docStatusCol]: 'signed',
+      // EOI carries a dedicated `eoi_status` lifecycle column; reservation /
+      // contract have only the `*_doc_status` sub-state (mirrors markExternallySigned).
+      ...(docType === 'eoi' ? { eoiStatus: 'signed' as const } : {}),
+      ...(shouldAdvanceStage ? { pipelineStage: cfg.targetStage } : {}),
+      updatedAt: new Date(),
+    } as Partial<typeof interests.$inferInsert>;
+
+    await tx.update(interests).set(interestPatch).where(eq(interests.id, interestId));
 
     return {
       documentId: doc.id,
       fileId: fileRecord.id,
       stageChanged: shouldAdvanceStage,
-      newStage: shouldAdvanceStage ? ('eoi' as const) : canonicalStage,
+      newStage: shouldAdvanceStage ? cfg.targetStage : canonicalStage,
     };
   });
 
@@ -250,7 +313,8 @@ export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
     entityType: 'document',
     entityId: docId,
     metadata: {
-      kind: 'external_eoi_upload',
+      kind: `external_${docType}_upload`,
+      docType,
       interestId,
       title,
       signerNames: input.signerNames ?? [],
@@ -270,8 +334,10 @@ export async function uploadExternallySignedEoi(input: ExternalEoiInput) {
   // to dodge the circular dep between berth-rules-engine and the
   // interest services.
   try {
-    const { evaluateRule } = await import('@/lib/services/berth-rules-engine');
-    await evaluateRule('eoi_signed', interestId, portId, meta);
+    if (cfg.rule) {
+      const { evaluateRule } = await import('@/lib/services/berth-rules-engine');
+      await evaluateRule(cfg.rule, interestId, portId, meta);
+    }
   } catch {
     // Swallow - rules engine failures should never block the upload
     // that the rep has already completed end-to-end. The orphan-reaper
diff --git a/tests/integration/external-eoi-stage-advance.test.ts b/tests/integration/external-eoi-stage-advance.test.ts
index 931c1da4..6ae61c2d 100644
--- a/tests/integration/external-eoi-stage-advance.test.ts
+++ b/tests/integration/external-eoi-stage-advance.test.ts
@@ -20,6 +20,7 @@ import { afterEach, beforeAll, beforeEach, describe, expect, it, vi } from 'vite
 
 import { db } from '@/lib/db';
 import { interests } from '@/lib/db/schema/interests';
+import { documents } from '@/lib/db/schema/documents';
 import { eq } from 'drizzle-orm';
 
 let uploadExternallySignedEoi: typeof import('@/lib/services/external-eoi.service').uploadExternallySignedEoi;
@@ -97,6 +98,7 @@ describe('uploadExternallySignedEoi — stage-advance gate', () => {
     interestId: string,
     portId: string,
     meta: ReturnType<typeof makeAuditMeta>,
+    docType?: 'eoi' | 'reservation' | 'contract',
   ) {
     return uploadExternallySignedEoi({
       interestId,
@@ -109,6 +111,7 @@ describe('uploadExternallySignedEoi — stage-advance gate', () => {
       },
       signedAt: new Date('2026-05-24T10:00:00Z'),
       signatories: [{ name: 'Client', email: 'client@example.com', role: 'client' }],
+      ...(docType ? { docType } : {}),
       meta,
     });
   }
@@ -148,4 +151,68 @@ describe('uploadExternallySignedEoi — stage-advance gate', () => {
       expect(row?.dateEoiSigned).toBeTruthy();
     },
   );
+
+  // ── docType routing ────────────────────────────────────────────────────────
+  // Regression coverage for the paper-upload misroute: the reservation and
+  // contract tabs reused this dialog, but the service hard-coded the EOI
+  // documentType / status columns / stage target. A signed contract uploaded
+  // from the Contract tab filed as an `eoi` and flipped `eoi_status` — wrong
+  // doc kind, wrong sub-state, wrong stage. The service now keys all of that
+  // off `docType`.
+  describe('docType routing (reservation / contract)', () => {
+    it('reservation: files as reservation_agreement, advances eoi → reservation, leaves eoi_status null', async () => {
+      const { port, meta, interest } = await makeInterest('eoi');
+
+      const result = await uploadFakeEoi(interest.id, port.id, meta, 'reservation');
+
+      expect(result.stageChanged).toBe(true);
+      expect(result.newStage).toBe('reservation');
+
+      const row = await db.query.interests.findFirst({ where: eq(interests.id, interest.id) });
+      expect(row?.pipelineStage).toBe('reservation');
+      expect(row?.reservationDocStatus).toBe('signed');
+      expect(row?.dateReservationSigned).toBeTruthy();
+      // The EOI lifecycle column must NOT be touched by a reservation upload.
+      expect(row?.eoiStatus).toBeNull();
+      expect(row?.eoiDocStatus).toBeNull();
+
+      const doc = await db.query.documents.findFirst({
+        where: eq(documents.id, result.documentId),
+      });
+      expect(doc?.documentType).toBe('reservation_agreement');
+    });
+
+    it('contract: files as contract, advances reservation → contract, sets contract columns only', async () => {
+      const { port, meta, interest } = await makeInterest('reservation');
+
+      const result = await uploadFakeEoi(interest.id, port.id, meta, 'contract');
+
+      expect(result.stageChanged).toBe(true);
+      expect(result.newStage).toBe('contract');
+
+      const row = await db.query.interests.findFirst({ where: eq(interests.id, interest.id) });
+      expect(row?.pipelineStage).toBe('contract');
+      expect(row?.contractDocStatus).toBe('signed');
+      expect(row?.dateContractSigned).toBeTruthy();
+      expect(row?.eoiStatus).toBeNull();
+
+      const doc = await db.query.documents.findFirst({
+        where: eq(documents.id, result.documentId),
+      });
+      expect(doc?.documentType).toBe('contract');
+    });
+
+    it('contract: at-or-past contract stage stays put (idempotent), still files the doc', async () => {
+      const { port, meta, interest } = await makeInterest('contract');
+
+      const result = await uploadFakeEoi(interest.id, port.id, meta, 'contract');
+
+      expect(result.stageChanged).toBe(false);
+      expect(result.newStage).toBe('contract');
+
+      const row = await db.query.interests.findFirst({ where: eq(interests.id, interest.id) });
+      expect(row?.pipelineStage).toBe('contract');
+      expect(row?.contractDocStatus).toBe('signed');
+    });
+  });
 });