diff --git a/crud.py b/crud.py
index 9097421..2f85952 100644
--- a/crud.py
+++ b/crud.py
@@ -446,3 +446,12 @@ async def update_user_wallet_settings(
     settings = StoredUserWalletSettings(**data.dict(), id=user_id)
     await db.update("user_wallet_settings", settings)
     return settings
+
+
+async def get_all_user_wallet_settings() -> list[StoredUserWalletSettings]:
+    """Get all user wallet settings"""
+    return await db.fetchall(
+        "SELECT * FROM user_wallet_settings ORDER BY id",
+        {},
+        StoredUserWalletSettings,
+    )
diff --git a/static/js/index.js b/static/js/index.js
index 816d846..0c1fb09 100644
--- a/static/js/index.js
+++ b/static/js/index.js
@@ -12,6 +12,7 @@ window.app = Vue.createApp({
       transactions: [],
       accounts: [],
       currencies: [],
+      users: [],
       settings: null,
       userWalletSettings: null,
       isAdmin: false,
@@ -42,6 +43,16 @@ window.app = Vue.createApp({
         show: false,
         userWalletId: '',
         loading: false
+      },
+      receivableDialog: {
+        show: false,
+        selectedUser: '',
+        description: '',
+        amount: null,
+        revenueAccount: '',
+        reference: '',
+        currency: null,
+        loading: false
       }
     }
   },
@@ -49,18 +60,37 @@ window.app = Vue.createApp({
     expenseAccounts() {
       return this.accounts.filter(a => a.account_type === 'expense')
     },
+    revenueAccounts() {
+      return this.accounts.filter(a => a.account_type === 'revenue')
+    },
     amountLabel() {
       if (this.expenseDialog.currency) {
         return `Amount (${this.expenseDialog.currency}) *`
       }
       return 'Amount (sats) *'
     },
+    receivableAmountLabel() {
+      if (this.receivableDialog.currency) {
+        return `Amount (${this.receivableDialog.currency}) *`
+      }
+      return 'Amount (sats) *'
+    },
     currencyOptions() {
       const options = [{label: 'Satoshis (default)', value: null}]
       this.currencies.forEach(curr => {
         options.push({label: curr, value: curr})
       })
       return options
+    },
+    userOptions() {
+      const options = []
+      this.users.forEach(user => {
+        options.push({
+          label: user.username,
+          value: user.user_wallet_id
+        })
+      })
+      return options
     }
   },
   methods: {
@@ -129,6 +159,18 @@ window.app = Vue.createApp({
         LNbits.utils.notifyApiError(error)
       }
     },
+    async loadUsers() {
+      try {
+        const response = await LNbits.api.request(
+          'GET',
+          '/castle/api/v1/users',
+          this.g.user.wallets[0].adminkey
+        )
+        this.users = response.data
+      } catch (error) {
+        console.error('Error loading users:', error)
+      }
+    },
     async loadSettings() {
       try {
         // Try with admin key first to check settings
@@ -304,6 +346,43 @@ window.app = Vue.createApp({
       this.payDialog.amount = Math.abs(this.balance.balance)
       this.payDialog.show = true
     },
+    async showReceivableDialog() {
+      // Load users if not already loaded
+      if (this.users.length === 0 && this.isSuperUser) {
+        await this.loadUsers()
+      }
+      this.receivableDialog.show = true
+    },
+    async submitReceivable() {
+      this.receivableDialog.loading = true
+      try {
+        await LNbits.api.request(
+          'POST',
+          '/castle/api/v1/entries/receivable',
+          this.g.user.wallets[0].adminkey,
+          {
+            description: this.receivableDialog.description,
+            amount: this.receivableDialog.amount,
+            revenue_account: this.receivableDialog.revenueAccount,
+            user_wallet: this.receivableDialog.selectedUser,
+            reference: this.receivableDialog.reference || null,
+            currency: this.receivableDialog.currency || null
+          }
+        )
+        this.$q.notify({
+          type: 'positive',
+          message: 'Receivable added successfully'
+        })
+        this.receivableDialog.show = false
+        this.resetReceivableDialog()
+        await this.loadBalance()
+        await this.loadTransactions()
+      } catch (error) {
+        LNbits.utils.notifyApiError(error)
+      } finally {
+        this.receivableDialog.loading = false
+      }
+    },
     resetExpenseDialog() {
       this.expenseDialog.description = ''
       this.expenseDialog.amount = null
@@ -312,6 +391,14 @@ window.app = Vue.createApp({
       this.expenseDialog.reference = ''
       this.expenseDialog.currency = null
     },
+    resetReceivableDialog() {
+      this.receivableDialog.selectedUser = ''
+      this.receivableDialog.description = ''
+      this.receivableDialog.amount = null
+      this.receivableDialog.revenueAccount = ''
+      this.receivableDialog.reference = ''
+      this.receivableDialog.currency = null
+    },
     formatSats(amount) {
       return new Intl.NumberFormat().format(amount)
     },
@@ -330,5 +417,9 @@ window.app = Vue.createApp({
     await this.loadCurrencies()
     await this.loadSettings()
     await this.loadUserWallet()
+    // Load users if super user (for receivable dialog)
+    if (this.isSuperUser) {
+      await this.loadUsers()
+    }
   }
 })
diff --git a/templates/castle/index.html b/templates/castle/index.html
index a798486..4127b7f 100644
--- a/templates/castle/index.html
+++ b/templates/castle/index.html
@@ -153,6 +153,20 @@
               You must configure your wallet first
             </q-tooltip>
           </q-btn>
+          <q-btn
+            v-if="isSuperUser"
+            color="orange"
+            @click="showReceivableDialog"
+            :disable="!castleWalletConfigured"
+          >
+            Add Receivable
+            <q-tooltip v-if="!castleWalletConfigured">
+              Castle wallet must be configured first
+            </q-tooltip>
+            <q-tooltip v-else>
+              Record when a user owes the Castle
+            </q-tooltip>
+          </q-btn>
           <q-btn color="secondary" @click="loadTransactions">
             View Transactions
           </q-btn>
@@ -410,4 +424,82 @@
   </q-card>
 </q-dialog>
 
+<!-- Receivable Dialog -->
+<q-dialog v-model="receivableDialog.show" position="top">
+  <q-card v-if="receivableDialog.show" class="q-pa-lg q-pt-xl lnbits__dialog-card">
+    <q-form @submit="submitReceivable" class="q-gutter-md">
+      <div class="text-h6 q-mb-md">Add Receivable</div>
+
+      <q-select
+        filled
+        dense
+        v-model="receivableDialog.selectedUser"
+        :options="userOptions"
+        option-label="label"
+        option-value="value"
+        emit-value
+        map-options
+        label="User *"
+      ></q-select>
+
+      <q-input
+        filled
+        dense
+        v-model.trim="receivableDialog.description"
+        label="Description *"
+        placeholder="e.g., Room rental for 5 days"
+      ></q-input>
+
+      <q-select
+        filled
+        dense
+        v-model="receivableDialog.currency"
+        :options="currencyOptions"
+        option-label="label"
+        option-value="value"
+        emit-value
+        map-options
+        label="Currency"
+      ></q-select>
+
+      <q-input
+        filled
+        dense
+        v-model.number="receivableDialog.amount"
+        type="number"
+        :label="receivableAmountLabel"
+        min="0.01"
+        step="0.01"
+      ></q-input>
+
+      <q-select
+        filled
+        dense
+        v-model="receivableDialog.revenueAccount"
+        :options="revenueAccounts"
+        option-label="name"
+        option-value="id"
+        emit-value
+        map-options
+        label="Revenue Category *"
+      ></q-select>
+
+      <q-input
+        filled
+        dense
+        v-model.trim="receivableDialog.reference"
+        label="Reference (optional)"
+        placeholder="e.g., Invoice #456"
+      ></q-input>
+
+      <div class="row q-mt-lg">
+        <q-btn unelevated color="primary" type="submit" :loading="receivableDialog.loading">
+          Submit Receivable
+        </q-btn>
+        <q-btn v-close-popup flat color="grey" class="q-ml-auto">Cancel</q-btn>
+      </div>
+    </q-form>
+  </q-card>
+</q-dialog>
+
 {% endblock %}
diff --git a/views_api.py b/views_api.py
index b8ace5b..682bc8f 100644
--- a/views_api.py
+++ b/views_api.py
@@ -20,6 +20,7 @@ from .crud import (
     get_all_accounts,
     get_all_journal_entries,
     get_all_user_balances,
+    get_all_user_wallet_settings,
     get_journal_entries_by_user,
     get_journal_entry,
     get_or_create_user_account,
@@ -282,7 +283,32 @@ async def api_create_receivable_entry(
     """
     Create an accounts receivable entry (user owes castle).
     Admin only to prevent abuse.
+
+    If currency is provided, amount is converted from fiat to satoshis.
     """
+    # Handle currency conversion
+    amount_sats = int(data.amount)
+    metadata = {}
+
+    if data.currency:
+        # Validate currency
+        if data.currency.upper() not in allowed_currencies():
+            raise HTTPException(
+                status_code=HTTPStatus.BAD_REQUEST,
+                detail=f"Currency '{data.currency}' not allowed. Use one of: {', '.join(allowed_currencies())}",
+            )
+
+        # Convert fiat to satoshis
+        amount_sats = await fiat_amount_as_satoshis(data.amount, data.currency)
+
+        # Store currency metadata
+        metadata = {
+            "fiat_currency": data.currency.upper(),
+            "fiat_amount": round(data.amount, ndigits=3),
+            "fiat_rate": amount_sats / data.amount if data.amount > 0 else 0,
+            "btc_rate": (data.amount / amount_sats * 100_000_000) if amount_sats > 0 else 0,
+        }
+
     # Get or create revenue account
     revenue_account = await get_account_by_name(data.revenue_account)
     if not revenue_account:
@@ -300,21 +326,24 @@ async def api_create_receivable_entry(
 
     # Create journal entry
     # DR Accounts Receivable (User), CR Revenue
+    description_suffix = f" ({metadata['fiat_amount']} {metadata['fiat_currency']})" if metadata else ""
     entry_data = CreateJournalEntry(
-        description=data.description,
+        description=data.description + description_suffix,
         reference=data.reference,
         lines=[
             CreateEntryLine(
                 account_id=user_receivable.id,
-                debit=data.amount,
+                debit=amount_sats,
                 credit=0,
                 description=f"Amount owed by user {data.user_wallet[:8]}",
+                metadata=metadata,
             ),
             CreateEntryLine(
                 account_id=revenue_account.id,
                 debit=0,
-                credit=data.amount,
+                credit=amount_sats,
                 description="Revenue earned",
+                metadata=metadata,
             ),
         ],
     )
@@ -558,6 +587,32 @@ async def api_update_settings(
 # ===== USER WALLET ENDPOINTS =====
 
 
+@castle_api_router.get("/api/v1/users")
+async def api_get_all_users(
+    wallet: WalletTypeInfo = Depends(require_admin_key),
+) -> list[dict]:
+    """Get all users who have configured their wallet (admin only)"""
+    from lnbits.core.crud.users import get_user
+
+    user_settings = await get_all_user_wallet_settings()
+
+    users = []
+    for setting in user_settings:
+        # Get user details from core
+        user = await get_user(setting.id)
+
+        # Use username if available, otherwise truncate user_id
+        username = user.username if user and user.username else setting.id[:16] + "..."
+
+        users.append({
+            "user_id": setting.id,
+            "user_wallet_id": setting.user_wallet_id,
+            "username": username,
+        })
+
+    return users
+
+
 @castle_api_router.get("/api/v1/user/wallet")
 async def api_get_user_wallet(
     user: User = Depends(check_user_exists),