diff --git a/components/dashboard/PositionCard.tsx b/components/dashboard/PositionCard.tsx
index 9d7e428..7b8d342 100644
--- a/components/dashboard/PositionCard.tsx
+++ b/components/dashboard/PositionCard.tsx
@@ -2,6 +2,8 @@
 
 import { Card, CardContent } from "@/components/ui/card";
 import { InvoiceStatusBadge } from "@/components/invoices/InvoiceStatusBadge";
+import { HoldingActionsMenu } from "@/components/dashboard/HoldingActionsMenu";
+import { TopUpModal } from "@/components/invoices/TopUpModal";
 import { KeyTransferModal } from "@/components/dashboard/KeyTransferModal";
 import { PositionTransferModal } from "@/components/dashboard/PositionTransferModal";
 import { BurnKeyModal } from "@/components/keys/BurnKeyModal";
@@ -29,6 +31,7 @@ interface PositionCardProps {
 export function PositionCard({ position }: PositionCardProps) {
   const shareDisplay = formatSharePercent(position.share_percent);
   const isKeyHolding = Boolean(position.key_id);
+  const canTopUp = position.status === "active" && (position.remaining_capacity ?? 0) > 0;
 
   return (
     <Card data-testid="position-card">
@@ -45,6 +48,14 @@ export function PositionCard({ position }: PositionCardProps) {
           </p>
         </div>
         <div className="flex items-center gap-2">
+          {isKeyHolding && <HoldingActionsMenu position={position} />}
+          {canTopUp && (
+            <TopUpModal
+              invoiceId={position.invoice_id}
+              currentCommittedAmount={position.committed_amount}
+              remainingCapacity={position.remaining_capacity ?? 0}
+            />
+          )}
           {position.status === "active" && (
             <PositionTransferModal position={position} />
           )}
diff --git a/components/dashboard/__tests__/PositionCard.test.tsx b/components/dashboard/__tests__/PositionCard.test.tsx
index 3513859..3924480 100644
--- a/components/dashboard/__tests__/PositionCard.test.tsx
+++ b/components/dashboard/__tests__/PositionCard.test.tsx
@@ -78,4 +78,43 @@ describe("PositionCard", () => {
 
     expect(screen.getByTestId("position-share")).toHaveTextContent("12.35%");
   });
+
+  it("renders Top Up button for active positions with remaining capacity", () => {
+    render(
+      <PositionCard
+        position={makePosition({
+          status: "active",
+          remaining_capacity: 1000,
+        })}
+      />
+    );
+
+    expect(screen.getByTestId("top-up-button")).toBeInTheDocument();
+  });
+
+  it("does not render Top Up button for settled positions", () => {
+    render(
+      <PositionCard
+        position={makePosition({
+          status: "settled",
+          remaining_capacity: 1000,
+        })}
+      />
+    );
+
+    expect(screen.queryByTestId("top-up-button")).not.toBeInTheDocument();
+  });
+
+  it("does not render Top Up button when remaining capacity is zero", () => {
+    render(
+      <PositionCard
+        position={makePosition({
+          status: "active",
+          remaining_capacity: 0,
+        })}
+      />
+    );
+
+    expect(screen.queryByTestId("top-up-button")).not.toBeInTheDocument();
+  });
 });
diff --git a/components/invoices/TopUpModal.tsx b/components/invoices/TopUpModal.tsx
new file mode 100644
index 0000000..2204cee
--- /dev/null
+++ b/components/invoices/TopUpModal.tsx
@@ -0,0 +1,154 @@
+"use client";
+
+import { useState } from "react";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { Label } from "@/components/ui/label";
+import {
+  Popover,
+  PopoverContent,
+  PopoverTrigger,
+} from "@/components/ui/popover";
+import { useTopUpMutation } from "@/hooks/useInvestments";
+import { cn } from "@/lib/utils";
+
+interface TopUpModalProps {
+  invoiceId: string;
+  currentCommittedAmount: number;
+  remainingCapacity: number;
+  onSuccess?: () => void;
+}
+
+export function TopUpModal({
+  invoiceId,
+  currentCommittedAmount,
+  remainingCapacity,
+  onSuccess,
+}: TopUpModalProps) {
+  const [isOpen, setIsOpen] = useState(false);
+  const [additionalAmount, setAdditionalAmount] = useState("");
+  const [error, setError] = useState<string | null>(null);
+  const topUpMutation = useTopUpMutation();
+
+  const validateAmount = (value: string): string | null => {
+    if (value.trim() === "") {
+      return null;
+    }
+
+    const amount = Number(value);
+
+    if (Number.isNaN(amount) || amount <= 0) {
+      return "Please enter a valid positive amount";
+    }
+
+    if (amount > remainingCapacity) {
+      return "Exceeds remaining capacity";
+    }
+
+    return null;
+  };
+
+  const handleAmountChange = (value: string) => {
+    setAdditionalAmount(value);
+    setError(validateAmount(value));
+  };
+
+  const handleTopUp = async () => {
+    const validationError = validateAmount(additionalAmount);
+    if (validationError) {
+      setError(validationError);
+      return;
+    }
+
+    const amount = Number(additionalAmount);
+    await topUpMutation.mutateAsync({ invoiceId, amount });
+    setIsOpen(false);
+    setAdditionalAmount("");
+    setError(null);
+    onSuccess?.();
+  };
+
+  const newTotal = currentCommittedAmount + Number(additionalAmount || 0);
+
+  return (
+    <Popover open={isOpen} onOpenChange={setIsOpen}>
+      <PopoverTrigger asChild>
+        <Button
+          variant="outline"
+          size="sm"
+          data-testid="top-up-button"
+        >
+          Top Up
+        </Button>
+      </PopoverTrigger>
+      <PopoverContent className="w-80">
+        <div className="space-y-4">
+          <div className="space-y-2">
+            <h3 className="font-semibold">Top Up Investment</h3>
+            <p className="text-sm text-muted-foreground">
+              Increase your position in this invoice
+            </p>
+          </div>
+
+          <div className="space-y-1.5">
+            <Label>Current committed amount</Label>
+            <p className="text-sm font-medium">
+              {currentCommittedAmount.toLocaleString(undefined, {
+                minimumFractionDigits: 2,
+                maximumFractionDigits: 2,
+              })} XLM
+            </p>
+          </div>
+
+          <div className="space-y-1.5">
+            <Label htmlFor="top-up-amount">Additional amount (XLM)</Label>
+            <Input
+              id="top-up-amount"
+              inputMode="decimal"
+              placeholder={`0 - ${remainingCapacity.toLocaleString()}`}
+              value={additionalAmount}
+              aria-invalid={error !== null}
+              aria-describedby={error ? "top-up-amount-error" : undefined}
+              className={cn(error && "border-destructive focus-visible:ring-destructive")}
+              onChange={(e) => handleAmountChange(e.target.value)}
+            />
+            {error && (
+              <p id="top-up-amount-error" role="alert" className="text-sm text-destructive">
+                {error}
+              </p>
+            )}
+          </div>
+
+          {additionalAmount && !error && (
+            <div className="space-y-1.5">
+              <Label>New total position</Label>
+              <p className="text-sm font-medium">
+                {newTotal.toLocaleString(undefined, {
+                  minimumFractionDigits: 2,
+                  maximumFractionDigits: 2,
+                })} XLM
+              </p>
+            </div>
+          )}
+
+          <div className="flex gap-2 pt-2">
+            <Button
+              variant="outline"
+              onClick={() => setIsOpen(false)}
+              className="flex-1"
+            >
+              Cancel
+            </Button>
+            <Button
+              onClick={handleTopUp}
+              disabled={!!error || !additionalAmount || topUpMutation.isPending}
+              className="flex-1"
+            >
+              {topUpMutation.isPending ? "Processing..." : "Confirm Top Up"}
+            </Button>
+          </div>
+        </div>
+      </PopoverContent>
+    </Popover>
+  );
+}
diff --git a/lib/api/index.ts b/lib/api/index.ts
index d38cf53..24f9e7b 100644
--- a/lib/api/index.ts
+++ b/lib/api/index.ts
@@ -1006,6 +1006,16 @@ export async function distributeDividend(
   token?: string
 ): Promise<DividendDistributionResult> {
   const res = await fetch(`${API_BASE}/keys/${keyId}/distribute-dividend`, {
+    method: "POST",
+    headers: {
+      "Content-Type": "application/json",
+      ...authHeaders(token),
+    },
+    body: JSON.stringify({ amount, wallet: walletAddress }),
+  });
+  if (!res.ok) throw new Error("Dividend distribution failed");
+  return normalizeDividendResult(await res.json(), amount);
+}
 
 export type WalletActivityType =
   | "buy"
@@ -1284,10 +1294,6 @@ export async function approveKeyPause(
       "Content-Type": "application/json",
       ...authHeaders(token),
     },
-    body: JSON.stringify({ amount, wallet: walletAddress }),
-  });
-  if (!res.ok) throw new Error("Dividend distribution failed");
-  return normalizeDividendResult(await res.json(), amount);
   });
   if (!res.ok) {
     throw new Error(await readErrorMessage(res, "Failed to approve pause"));
diff --git a/lib/portfolio.ts b/lib/portfolio.ts
index af99970..d402b5c 100644
--- a/lib/portfolio.ts
+++ b/lib/portfolio.ts
@@ -10,6 +10,7 @@ export interface InvestmentPosition {
     key_title?: string;
     quantity?: number;
     lockup_expires_at?: string | null;
+    remaining_capacity?: number;
 }
 
 export interface PortfolioSummary {
diff --git a/package-lock.json b/package-lock.json
index 1af5b1f..67a6eb1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -251,7 +251,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=20.19.0"
       },
@@ -300,7 +299,6 @@
         }
       ],
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=20.19.0"
       }
@@ -317,6 +315,16 @@
         "tslib": "^2.4.0"
       }
     },
+    "node_modules/@emnapi/runtime": {
+      "version": "1.11.3",
+      "resolved": "https://registry.npmjs.org/@emnapi/runtime/-/runtime-1.11.3.tgz",
+      "integrity": "sha512-Xz4Tpyki7XyrpbUK1jR1AhdAdaXyhhY4lZ3neLodmhpuWfy2PAQN5B46sAiU4liOXGLkHypn/qU+jvfWSCYYLA==",
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "tslib": "^2.4.0"
+      }
+    },
     "node_modules/@emnapi/wasi-threads": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/@emnapi/wasi-threads/-/wasi-threads-1.2.3.tgz",
@@ -2359,6 +2367,29 @@
         "node": "^20.19.0 || >=22.12.0"
       }
     },
+    "node_modules/@rolldown/binding-wasm32-wasi/node_modules/@emnapi/core": {
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/@emnapi/core/-/core-1.11.1.tgz",
+      "integrity": "sha512-RSvbQmHzdKzNsLYa/wHrbc3KN4sYLKAdPZxqiM2HATqv/SBk2/ENSHpvXGaLOMcsAyz0poEGqkmmKYG3OWiJEQ==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "@emnapi/wasi-threads": "1.2.2",
+        "tslib": "^2.4.0"
+      }
+    },
+    "node_modules/@rolldown/binding-wasm32-wasi/node_modules/@emnapi/runtime": {
+      "version": "1.11.1",
+      "resolved": "https://registry.npmjs.org/@emnapi/runtime/-/runtime-1.11.1.tgz",
+      "integrity": "sha512-vgj7R3y3Wgx24IQaGPA/R6YFXLHVMOZ0uVEyIQPaWs+rd1AzfEMXlAC22FYwO1XkKR6NPsq7mUandH8oIRdZFw==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "dependencies": {
+        "tslib": "^2.4.0"
+      }
+    },
     "node_modules/@rolldown/binding-wasm32-wasi/node_modules/@emnapi/wasi-threads": {
       "version": "1.2.2",
       "resolved": "https://registry.npmjs.org/@emnapi/wasi-threads/-/wasi-threads-1.2.2.tgz",
@@ -2771,7 +2802,6 @@
       "integrity": "sha512-o4PXJQidqJl82ckFaXUeoAW+XysPLauYI43Abki5hABd853iMhitooc6znOnczgbTYmEP6U6/y1ZyKAIsvMKGg==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.10.4",
         "@babel/runtime": "^7.12.5",
@@ -2965,7 +2995,6 @@
       "version": "22.19.15",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "undici-types": "~6.21.0"
       }
@@ -2974,7 +3003,6 @@
       "version": "19.2.14",
       "devOptional": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "csstype": "^3.2.2"
       }
@@ -2983,7 +3011,6 @@
       "version": "19.2.3",
       "devOptional": true,
       "license": "MIT",
-      "peer": true,
       "peerDependencies": {
         "@types/react": "^19.2.0"
       }
@@ -3027,7 +3054,6 @@
       "version": "8.57.0",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "8.57.0",
         "@typescript-eslint/types": "8.57.0",
@@ -3634,7 +3660,6 @@
       "integrity": "sha512-UVJyE9MttOsBQIDKw1skb9nAwQuR5wuGD3+82K6JgJlm/Y+KI92oNsMNGZCYdDsVtRHSak0pcV5Dno5+4jh9sw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -4770,7 +4795,6 @@
       "deprecated": "This version is no longer supported. Please see https://eslint.org/version-support for other options.",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.2.0",
         "@eslint-community/regexpp": "^4.6.1",
@@ -4926,7 +4950,6 @@
       "version": "2.32.0",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@rtsao/scc": "^1.1.0",
         "array-includes": "^3.1.9",
@@ -6206,7 +6229,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@asamuzakjp/css-color": "^5.1.11",
         "@asamuzakjp/dom-selector": "^7.1.1",
@@ -7685,7 +7707,6 @@
     "node_modules/react": {
       "version": "19.2.4",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -7693,7 +7714,6 @@
     "node_modules/react-dom": {
       "version": "19.2.4",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "scheduler": "^0.27.0"
       },
@@ -7704,7 +7724,6 @@
     "node_modules/react-hook-form": {
       "version": "7.71.2",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=18.0.0"
       },
@@ -9130,7 +9149,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -9356,7 +9374,6 @@
       "version": "5.9.3",
       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -9513,7 +9530,6 @@
       "integrity": "sha512-7ULLwsCdYx/nRyrpiEwvqb5TFHrMVZyBt+rg/OAXT7rgj/z+DtTDyKFeLAdDkubDVDKD8jOsndmy7m55XcfUsw==",
       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "lightningcss": "^1.32.0",
         "picomatch": "^4.0.5",
@@ -9961,111 +9977,6 @@
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
-    },
-    "node_modules/@next/swc-darwin-arm64": {
-      "version": "15.5.12",
-      "resolved": "https://registry.npmjs.org/@next/swc-darwin-arm64/-/swc-darwin-arm64-15.5.12.tgz",
-      "integrity": "sha512-RnRjBtH8S8eXCpUNkQ+543DUc7ys8y15VxmFU9HRqlo9BG3CcBUiwNtF8SNoi2xvGCVJq1vl2yYq+3oISBS0Zg==",
-      "cpu": [
-        "arm64"
-      ],
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": ">= 10"
-      }
-    },
-    "node_modules/@next/swc-darwin-x64": {
-      "version": "15.5.12",
-      "resolved": "https://registry.npmjs.org/@next/swc-darwin-x64/-/swc-darwin-x64-15.5.12.tgz",
-      "integrity": "sha512-nqa9/7iQlboF1EFtNhWxQA0rQstmYRSBGxSM6g3GxvxHxcoeqVXfGNr9stJOme674m2V7r4E3+jEhhGvSQhJRA==",
-      "cpu": [
-        "x64"
-      ],
-      "optional": true,
-      "os": [
-        "darwin"
-      ],
-      "engines": {
-        "node": ">= 10"
-      }
-    },
-    "node_modules/@next/swc-linux-arm64-gnu": {
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-      "optional": true,
-      "os": [
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-    "node_modules/@next/swc-linux-arm64-musl": {
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   }
 }