diff --git a/app/Http/Controllers/Api/V1/BarobillBillingController.php b/app/Http/Controllers/Api/V1/BarobillBillingController.php
new file mode 100644
index 00000000..855219b9
--- /dev/null
+++ b/app/Http/Controllers/Api/V1/BarobillBillingController.php
@@ -0,0 +1,172 @@
+<?php
+
+namespace App\Http\Controllers\Api\V1;
+
+use App\Helpers\ApiResponse;
+use App\Http\Controllers\Controller;
+use App\Services\Barobill\BarobillBillingService;
+use Carbon\Carbon;
+use Illuminate\Http\Request;
+
+class BarobillBillingController extends Controller
+{
+    public function __construct(
+        private BarobillBillingService $billingService,
+    ) {}
+
+    /**
+     * 구독 목록
+     */
+    public function subscriptions(Request $request)
+    {
+        $data = $request->validate([
+            'member_id' => 'nullable|integer',
+        ]);
+
+        return ApiResponse::handle(function () use ($data) {
+            return [
+                'subscriptions' => $this->billingService->getSubscriptions($data['member_id'] ?? null),
+            ];
+        }, __('message.fetched'));
+    }
+
+    /**
+     * 구독 등록/수정
+     */
+    public function saveSubscription(Request $request)
+    {
+        $data = $request->validate([
+            'member_id' => 'required|integer|exists:barobill_members,id',
+            'service_type' => 'required|in:bank_account,card,hometax',
+            'monthly_fee' => 'nullable|integer|min:0',
+            'started_at' => 'nullable|date',
+            'ended_at' => 'nullable|date|after_or_equal:started_at',
+            'is_active' => 'nullable|boolean',
+            'memo' => 'nullable|string|max:500',
+        ]);
+
+        return ApiResponse::handle(function () use ($data) {
+            return $this->billingService->saveSubscription(
+                $data['member_id'],
+                $data['service_type'],
+                $data
+            );
+        }, __('message.created'));
+    }
+
+    /**
+     * 구독 해지
+     */
+    public function cancelSubscription(int $id)
+    {
+        return ApiResponse::handle(function () use ($id) {
+            $this->billingService->cancelSubscription($id);
+
+            return ['cancelled' => true];
+        }, __('message.deleted'));
+    }
+
+    /**
+     * 월별 과금 현황 목록
+     */
+    public function billingList(Request $request)
+    {
+        $data = $request->validate([
+            'billing_month' => 'nullable|string|date_format:Y-m',
+            'tenant_id' => 'nullable|integer',
+        ]);
+
+        return ApiResponse::handle(function () use ($data) {
+            $billingMonth = $data['billing_month'] ?? Carbon::now()->format('Y-m');
+            $tenantId = $data['tenant_id'] ?? null;
+
+            return [
+                'list' => $this->billingService->getMonthlyBillingList($billingMonth, $tenantId),
+                'total' => $this->billingService->getMonthlyTotal($billingMonth, $tenantId),
+                'billing_month' => $billingMonth,
+            ];
+        }, __('message.fetched'));
+    }
+
+    /**
+     * 월별 과금 통계
+     */
+    public function billingStats(Request $request)
+    {
+        $data = $request->validate([
+            'billing_month' => 'nullable|string|date_format:Y-m',
+            'tenant_id' => 'nullable|integer',
+        ]);
+
+        return ApiResponse::handle(function () use ($data) {
+            $billingMonth = $data['billing_month'] ?? Carbon::now()->format('Y-m');
+
+            return $this->billingService->getMonthlyTotal($billingMonth, $data['tenant_id'] ?? null);
+        }, __('message.fetched'));
+    }
+
+    /**
+     * 월별 과금 배치 처리
+     */
+    public function processBilling(Request $request)
+    {
+        $data = $request->validate([
+            'billing_month' => 'nullable|string|date_format:Y-m',
+        ]);
+
+        return ApiResponse::handle(function () use ($data) {
+            return $this->billingService->processMonthlyBilling($data['billing_month'] ?? null);
+        }, __('message.created'));
+    }
+
+    /**
+     * 연간 과금 추이
+     */
+    public function yearlyTrend(Request $request)
+    {
+        $data = $request->validate([
+            'year' => 'nullable|integer|min:2020|max:2030',
+            'tenant_id' => 'nullable|integer',
+        ]);
+
+        return ApiResponse::handle(function () use ($data) {
+            $year = $data['year'] ?? Carbon::now()->year;
+
+            return [
+                'trend' => $this->billingService->getYearlyTrend($year, $data['tenant_id'] ?? null),
+                'year' => $year,
+            ];
+        }, __('message.fetched'));
+    }
+
+    /**
+     * 과금 정책 목록
+     */
+    public function pricingPolicies()
+    {
+        return ApiResponse::handle(function () {
+            return ['policies' => $this->billingService->getPricingPolicies()];
+        }, __('message.fetched'));
+    }
+
+    /**
+     * 과금 정책 수정
+     */
+    public function updatePricingPolicy(Request $request, int $id)
+    {
+        $data = $request->validate([
+            'name' => 'nullable|string|max:100',
+            'description' => 'nullable|string|max:500',
+            'free_quota' => 'nullable|integer|min:0',
+            'free_quota_unit' => 'nullable|string|max:10',
+            'additional_unit' => 'nullable|integer|min:1',
+            'additional_unit_label' => 'nullable|string|max:10',
+            'additional_price' => 'nullable|integer|min:0',
+            'is_active' => 'nullable|boolean',
+        ]);
+
+        return ApiResponse::handle(function () use ($id, $data) {
+            return $this->billingService->updatePricingPolicy($id, $data);
+        }, __('message.updated'));
+    }
+}
diff --git a/app/Http/Controllers/Api/V1/BarobillUsageController.php b/app/Http/Controllers/Api/V1/BarobillUsageController.php
new file mode 100644
index 00000000..107e298c
--- /dev/null
+++ b/app/Http/Controllers/Api/V1/BarobillUsageController.php
@@ -0,0 +1,96 @@
+<?php
+
+namespace App\Http\Controllers\Api\V1;
+
+use App\Helpers\ApiResponse;
+use App\Http\Controllers\Controller;
+use App\Models\Barobill\BarobillMember;
+use App\Services\Barobill\BarobillUsageService;
+use Carbon\Carbon;
+use Illuminate\Http\Request;
+
+class BarobillUsageController extends Controller
+{
+    public function __construct(
+        private BarobillUsageService $usageService,
+    ) {}
+
+    /**
+     * 사용량 목록
+     */
+    public function index(Request $request)
+    {
+        $data = $request->validate([
+            'start_date' => 'nullable|date_format:Y-m-d',
+            'end_date' => 'nullable|date_format:Y-m-d',
+            'tenant_id' => 'nullable|integer',
+        ]);
+
+        return ApiResponse::handle(function () use ($data) {
+            $startDate = $data['start_date'] ?? Carbon::now()->startOfMonth()->format('Y-m-d');
+            $endDate = $data['end_date'] ?? Carbon::now()->format('Y-m-d');
+            $tenantId = $data['tenant_id'] ?? null;
+
+            $usageList = $this->usageService->getUsageList($startDate, $endDate, $tenantId);
+
+            return [
+                'data' => $usageList,
+                'stats' => $this->usageService->aggregateStats($usageList),
+                'meta' => [
+                    'start_date' => $startDate,
+                    'end_date' => $endDate,
+                ],
+            ];
+        }, __('message.fetched'));
+    }
+
+    /**
+     * 사용량 통계
+     */
+    public function stats(Request $request)
+    {
+        $data = $request->validate([
+            'start_date' => 'nullable|date_format:Y-m-d',
+            'end_date' => 'nullable|date_format:Y-m-d',
+            'tenant_id' => 'nullable|integer',
+        ]);
+
+        return ApiResponse::handle(function () use ($data) {
+            $startDate = $data['start_date'] ?? Carbon::now()->startOfMonth()->format('Y-m-d');
+            $endDate = $data['end_date'] ?? Carbon::now()->format('Y-m-d');
+
+            $usageList = $this->usageService->getUsageList($startDate, $endDate, $data['tenant_id'] ?? null);
+
+            return $this->usageService->aggregateStats($usageList);
+        }, __('message.fetched'));
+    }
+
+    /**
+     * 회원별 사용량 상세
+     */
+    public function show(Request $request, int $memberId)
+    {
+        $data = $request->validate([
+            'start_date' => 'nullable|date_format:Y-m-d',
+            'end_date' => 'nullable|date_format:Y-m-d',
+        ]);
+
+        return ApiResponse::handle(function () use ($memberId, $data) {
+            $member = BarobillMember::withoutGlobalScopes()->findOrFail($memberId);
+            $startDate = $data['start_date'] ?? Carbon::now()->startOfMonth()->format('Y-m-d');
+            $endDate = $data['end_date'] ?? Carbon::now()->format('Y-m-d');
+
+            return $this->usageService->getMemberUsage($member, $startDate, $endDate);
+        }, __('message.fetched'));
+    }
+
+    /**
+     * 과금 정책 정보
+     */
+    public function priceInfo()
+    {
+        return ApiResponse::handle(function () {
+            return ['prices' => BarobillUsageService::getPriceInfo()];
+        }, __('message.fetched'));
+    }
+}
diff --git a/app/Services/Barobill/BarobillBillingService.php b/app/Services/Barobill/BarobillBillingService.php
new file mode 100644
index 00000000..4aaecd4d
--- /dev/null
+++ b/app/Services/Barobill/BarobillBillingService.php
@@ -0,0 +1,305 @@
+<?php
+
+namespace App\Services\Barobill;
+
+use App\Models\Barobill\BarobillBillingRecord;
+use App\Models\Barobill\BarobillMember;
+use App\Models\Barobill\BarobillMonthlySummary;
+use App\Models\Barobill\BarobillPricingPolicy;
+use App\Models\Barobill\BarobillSubscription;
+use App\Services\Service;
+use Carbon\Carbon;
+
+class BarobillBillingService extends Service
+{
+    /**
+     * 구독 목록 조회
+     */
+    public function getSubscriptions(?int $memberId = null): array
+    {
+        $query = BarobillSubscription::withoutGlobalScopes()
+            ->with('member');
+
+        if ($memberId) {
+            $query->where('member_id', $memberId);
+        }
+
+        return $query->orderBy('created_at', 'desc')->get()->toArray();
+    }
+
+    /**
+     * 구독 등록/수정
+     */
+    public function saveSubscription(int $memberId, string $serviceType, array $data): BarobillSubscription
+    {
+        return BarobillSubscription::withoutGlobalScopes()->updateOrCreate(
+            [
+                'member_id' => $memberId,
+                'service_type' => $serviceType,
+            ],
+            [
+                'monthly_fee' => $data['monthly_fee'] ?? BarobillSubscription::DEFAULT_MONTHLY_FEES[$serviceType] ?? 0,
+                'started_at' => $data['started_at'] ?? now(),
+                'ended_at' => $data['ended_at'] ?? null,
+                'is_active' => $data['is_active'] ?? true,
+                'memo' => $data['memo'] ?? null,
+            ]
+        );
+    }
+
+    /**
+     * 구독 해지
+     */
+    public function cancelSubscription(int $subscriptionId): bool
+    {
+        $subscription = BarobillSubscription::withoutGlobalScopes()->findOrFail($subscriptionId);
+        $subscription->update([
+            'ended_at' => now(),
+            'is_active' => false,
+        ]);
+
+        return true;
+    }
+
+    /**
+     * 월정액 과금 배치 처리
+     */
+    public function processMonthlyBilling(?string $billingMonth = null): array
+    {
+        $billingMonth = $billingMonth ?: Carbon::now()->format('Y-m');
+
+        $subscriptions = BarobillSubscription::withoutGlobalScopes()
+            ->where('is_active', true)
+            ->get();
+
+        $processed = 0;
+        $skipped = 0;
+        $errors = 0;
+
+        foreach ($subscriptions as $subscription) {
+            $exists = BarobillBillingRecord::withoutGlobalScopes()
+                ->where('member_id', $subscription->member_id)
+                ->where('billing_month', $billingMonth)
+                ->where('service_type', $subscription->service_type)
+                ->where('billing_type', 'subscription')
+                ->exists();
+
+            if ($exists) {
+                $skipped++;
+
+                continue;
+            }
+
+            try {
+                BarobillBillingRecord::withoutGlobalScopes()->create([
+                    'member_id' => $subscription->member_id,
+                    'billing_month' => $billingMonth,
+                    'service_type' => $subscription->service_type,
+                    'billing_type' => 'subscription',
+                    'quantity' => 1,
+                    'unit_price' => $subscription->monthly_fee,
+                    'total_amount' => $subscription->monthly_fee,
+                    'billed_at' => now(),
+                    'description' => $this->getServiceLabel($subscription->service_type).' 월정액',
+                ]);
+                $processed++;
+            } catch (\Throwable $e) {
+                $errors++;
+            }
+        }
+
+        $this->updateMonthlySummaries($billingMonth);
+
+        return [
+            'processed' => $processed,
+            'skipped' => $skipped,
+            'errors' => $errors,
+            'billing_month' => $billingMonth,
+        ];
+    }
+
+    /**
+     * 건별 사용량 과금 기록
+     */
+    public function recordUsage(int $memberId, string $serviceType, int $quantity, ?string $billingMonth = null): BarobillBillingRecord
+    {
+        $billingMonth = $billingMonth ?: Carbon::now()->format('Y-m');
+
+        $policy = BarobillPricingPolicy::withoutGlobalScopes()
+            ->where('service_type', $serviceType)
+            ->where('is_active', true)
+            ->first();
+
+        $totalAmount = 0;
+        if ($policy) {
+            $billing = $policy->calculateBilling($quantity);
+            $totalAmount = $billing['billable_amount'] ?? 0;
+        }
+
+        $record = BarobillBillingRecord::withoutGlobalScopes()->updateOrCreate(
+            [
+                'member_id' => $memberId,
+                'billing_month' => $billingMonth,
+                'service_type' => $serviceType,
+                'billing_type' => 'usage',
+            ],
+            [
+                'quantity' => $quantity,
+                'unit_price' => $totalAmount > 0 ? (int) ceil($totalAmount / max($quantity, 1)) : 0,
+                'total_amount' => $totalAmount,
+                'billed_at' => now(),
+                'description' => $this->getServiceLabel($serviceType).' 사용량 과금',
+            ]
+        );
+
+        $this->updateMonthlySummaries($billingMonth);
+
+        return $record;
+    }
+
+    /**
+     * 월별 집계 갱신
+     */
+    public function updateMonthlySummaries(string $billingMonth): void
+    {
+        $records = BarobillBillingRecord::withoutGlobalScopes()
+            ->where('billing_month', $billingMonth)
+            ->get()
+            ->groupBy('member_id');
+
+        foreach ($records as $memberId => $memberRecords) {
+            $summary = [
+                'bank_account_fee' => 0,
+                'card_fee' => 0,
+                'hometax_fee' => 0,
+                'subscription_total' => 0,
+                'tax_invoice_count' => 0,
+                'tax_invoice_amount' => 0,
+                'usage_total' => 0,
+            ];
+
+            foreach ($memberRecords as $record) {
+                if ($record->billing_type === 'subscription') {
+                    match ($record->service_type) {
+                        'bank_account' => $summary['bank_account_fee'] = $record->total_amount,
+                        'card' => $summary['card_fee'] = $record->total_amount,
+                        'hometax' => $summary['hometax_fee'] = $record->total_amount,
+                        default => null,
+                    };
+                    $summary['subscription_total'] += $record->total_amount;
+                } elseif ($record->billing_type === 'usage') {
+                    if ($record->service_type === 'tax_invoice') {
+                        $summary['tax_invoice_count'] = $record->quantity;
+                        $summary['tax_invoice_amount'] = $record->total_amount;
+                    }
+                    $summary['usage_total'] += $record->total_amount;
+                }
+            }
+
+            $summary['grand_total'] = $summary['subscription_total'] + $summary['usage_total'];
+
+            BarobillMonthlySummary::withoutGlobalScopes()->updateOrCreate(
+                ['member_id' => $memberId, 'billing_month' => $billingMonth],
+                $summary
+            );
+        }
+    }
+
+    /**
+     * 월별 과금 현황 목록
+     */
+    public function getMonthlyBillingList(string $billingMonth, ?int $tenantId = null): array
+    {
+        $query = BarobillMonthlySummary::withoutGlobalScopes()
+            ->with('member')
+            ->where('billing_month', $billingMonth);
+
+        if ($tenantId) {
+            $memberIds = BarobillMember::withoutGlobalScopes()
+                ->where('tenant_id', $tenantId)
+                ->pluck('id');
+            $query->whereIn('member_id', $memberIds);
+        }
+
+        return $query->get()->toArray();
+    }
+
+    /**
+     * 월별 합계
+     */
+    public function getMonthlyTotal(string $billingMonth, ?int $tenantId = null): array
+    {
+        $query = BarobillMonthlySummary::withoutGlobalScopes()
+            ->where('billing_month', $billingMonth);
+
+        if ($tenantId) {
+            $memberIds = BarobillMember::withoutGlobalScopes()
+                ->where('tenant_id', $tenantId)
+                ->pluck('id');
+            $query->whereIn('member_id', $memberIds);
+        }
+
+        return [
+            'member_count' => $query->count(),
+            'bank_account_fee' => (clone $query)->sum('bank_account_fee'),
+            'card_fee' => (clone $query)->sum('card_fee'),
+            'hometax_fee' => (clone $query)->sum('hometax_fee'),
+            'subscription_total' => (clone $query)->sum('subscription_total'),
+            'tax_invoice_count' => (clone $query)->sum('tax_invoice_count'),
+            'tax_invoice_amount' => (clone $query)->sum('tax_invoice_amount'),
+            'usage_total' => (clone $query)->sum('usage_total'),
+            'grand_total' => (clone $query)->sum('grand_total'),
+        ];
+    }
+
+    /**
+     * 연간 과금 추이
+     */
+    public function getYearlyTrend(int $year, ?int $tenantId = null): array
+    {
+        $trend = [];
+        for ($month = 1; $month <= 12; $month++) {
+            $billingMonth = sprintf('%d-%02d', $year, $month);
+            $total = $this->getMonthlyTotal($billingMonth, $tenantId);
+            $trend[] = [
+                'billing_month' => $billingMonth,
+                ...$total,
+            ];
+        }
+
+        return $trend;
+    }
+
+    /**
+     * 과금 정책 목록
+     */
+    public function getPricingPolicies(): array
+    {
+        return BarobillPricingPolicy::withoutGlobalScopes()
+            ->orderBy('sort_order')
+            ->get()
+            ->toArray();
+    }
+
+    /**
+     * 과금 정책 수정
+     */
+    public function updatePricingPolicy(int $id, array $data): BarobillPricingPolicy
+    {
+        $policy = BarobillPricingPolicy::withoutGlobalScopes()->findOrFail($id);
+        $policy->update($data);
+
+        return $policy->fresh();
+    }
+
+    private function getServiceLabel(string $serviceType): string
+    {
+        return match ($serviceType) {
+            'bank_account' => '계좌조회',
+            'card' => '법인카드',
+            'hometax' => '홈택스',
+            'tax_invoice' => '전자세금계산서',
+            default => $serviceType,
+        };
+    }
+}
diff --git a/app/Services/Barobill/BarobillUsageService.php b/app/Services/Barobill/BarobillUsageService.php
new file mode 100644
index 00000000..8af4c86d
--- /dev/null
+++ b/app/Services/Barobill/BarobillUsageService.php
@@ -0,0 +1,163 @@
+<?php
+
+namespace App\Services\Barobill;
+
+use App\Models\Barobill\BarobillBankTransaction;
+use App\Models\Barobill\BarobillCardTransaction;
+use App\Models\Barobill\BarobillMember;
+use App\Models\Barobill\BarobillPricingPolicy;
+use App\Models\Barobill\HometaxInvoice;
+use App\Services\Service;
+
+class BarobillUsageService extends Service
+{
+    /**
+     * 전체 회원사 사용량 목록
+     */
+    public function getUsageList(string $startDate, string $endDate, ?int $tenantId = null): array
+    {
+        $query = BarobillMember::withoutGlobalScopes()
+            ->where('status', 'active');
+
+        if ($tenantId) {
+            $query->where('tenant_id', $tenantId);
+        }
+
+        $members = $query->get();
+        $usageList = [];
+
+        foreach ($members as $member) {
+            $usageList[] = $this->getMemberUsage($member, $startDate, $endDate);
+        }
+
+        return $usageList;
+    }
+
+    /**
+     * 단일 회원사 사용량 상세
+     */
+    public function getMemberUsage(BarobillMember $member, string $startDate, string $endDate): array
+    {
+        $taxInvoiceCount = $this->getTaxInvoiceCount($member, $startDate, $endDate);
+        $bankAccountCount = $this->getBankAccountCount($member);
+        $cardCount = $this->getCardCount($member);
+        $hometaxCount = $this->getHometaxCount($member, $startDate, $endDate);
+
+        $taxInvoiceBilling = $this->calculateBillingByPolicy('tax_invoice', $taxInvoiceCount);
+
+        return [
+            'member_id' => $member->id,
+            'tenant_id' => $member->tenant_id,
+            'biz_no' => $member->biz_no,
+            'corp_name' => $member->corp_name,
+            'barobill_id' => $member->barobill_id,
+            'server_mode' => $member->server_mode ?? 'test',
+            'tax_invoice_count' => $taxInvoiceCount,
+            'bank_account_count' => $bankAccountCount,
+            'card_count' => $cardCount,
+            'hometax_count' => $hometaxCount,
+            'tax_invoice_billing' => $taxInvoiceBilling,
+            'total_amount' => $taxInvoiceBilling['billable_amount'] ?? 0,
+        ];
+    }
+
+    /**
+     * 사용량 통계 집계
+     */
+    public function aggregateStats(array $usageList): array
+    {
+        $stats = [
+            'total_members' => count($usageList),
+            'total_tax_invoice_count' => 0,
+            'total_bank_account_count' => 0,
+            'total_card_count' => 0,
+            'total_hometax_count' => 0,
+            'total_amount' => 0,
+        ];
+
+        foreach ($usageList as $usage) {
+            $stats['total_tax_invoice_count'] += $usage['tax_invoice_count'];
+            $stats['total_bank_account_count'] += $usage['bank_account_count'];
+            $stats['total_card_count'] += $usage['card_count'];
+            $stats['total_hometax_count'] += $usage['hometax_count'];
+            $stats['total_amount'] += $usage['total_amount'];
+        }
+
+        return $stats;
+    }
+
+    /**
+     * 과금 정책 정보
+     */
+    public static function getPriceInfo(): array
+    {
+        $policies = BarobillPricingPolicy::withoutGlobalScopes()
+            ->where('is_active', true)
+            ->orderBy('sort_order')
+            ->get();
+
+        $info = [];
+        foreach ($policies as $policy) {
+            $info[$policy->service_type] = [
+                'name' => $policy->name,
+                'free_quota' => $policy->free_quota,
+                'free_quota_unit' => $policy->free_quota_unit,
+                'additional_unit' => $policy->additional_unit,
+                'additional_unit_label' => $policy->additional_unit_label,
+                'additional_price' => $policy->additional_price,
+            ];
+        }
+
+        return $info;
+    }
+
+    /**
+     * 정책 기반 과금액 계산
+     */
+    public static function calculateBillingByPolicy(string $serviceType, int $usageCount): array
+    {
+        $policy = BarobillPricingPolicy::withoutGlobalScopes()
+            ->where('service_type', $serviceType)
+            ->where('is_active', true)
+            ->first();
+
+        if (! $policy) {
+            return ['free_count' => $usageCount, 'billable_count' => 0, 'billable_amount' => 0];
+        }
+
+        return $policy->calculateBilling($usageCount);
+    }
+
+    protected function getTaxInvoiceCount(BarobillMember $member, string $startDate, string $endDate): int
+    {
+        return HometaxInvoice::withoutGlobalScopes()
+            ->where('tenant_id', $member->tenant_id)
+            ->where('invoice_type', 'sales')
+            ->whereBetween('write_date', [$startDate, $endDate])
+            ->count();
+    }
+
+    protected function getBankAccountCount(BarobillMember $member): int
+    {
+        return BarobillBankTransaction::withoutGlobalScopes()
+            ->where('tenant_id', $member->tenant_id)
+            ->distinct('bank_account_num')
+            ->count('bank_account_num');
+    }
+
+    protected function getCardCount(BarobillMember $member): int
+    {
+        return BarobillCardTransaction::withoutGlobalScopes()
+            ->where('tenant_id', $member->tenant_id)
+            ->distinct('card_num')
+            ->count('card_num');
+    }
+
+    protected function getHometaxCount(BarobillMember $member, string $startDate, string $endDate): int
+    {
+        return HometaxInvoice::withoutGlobalScopes()
+            ->where('tenant_id', $member->tenant_id)
+            ->whereBetween('write_date', [$startDate, $endDate])
+            ->count();
+    }
+}
diff --git a/routes/api/v1/finance.php b/routes/api/v1/finance.php
index fd66fe6b..4025d108 100644
--- a/routes/api/v1/finance.php
+++ b/routes/api/v1/finance.php
@@ -18,12 +18,14 @@
 use App\Http\Controllers\Api\V1\BankAccountController;
 use App\Http\Controllers\Api\V1\BankTransactionController;
 use App\Http\Controllers\Api\V1\BarobillBankTransactionController;
+use App\Http\Controllers\Api\V1\BarobillBillingController;
 use App\Http\Controllers\Api\V1\BarobillCardTransactionController;
 use App\Http\Controllers\Api\V1\BarobillController;
 use App\Http\Controllers\Api\V1\BarobillKakaotalkController;
 use App\Http\Controllers\Api\V1\BarobillSettingController;
 use App\Http\Controllers\Api\V1\BarobillSmsController;
 use App\Http\Controllers\Api\V1\BarobillSyncController;
+use App\Http\Controllers\Api\V1\BarobillUsageController;
 use App\Http\Controllers\Api\V1\BillController;
 use App\Http\Controllers\Api\V1\CalendarController;
 use App\Http\Controllers\Api\V1\CardController;
@@ -423,6 +425,27 @@
     Route::get('/send-state/{sendKey}', [BarobillSmsController::class, 'sendState'])->name('v1.barobill.sms.send-state');
 });
 
+// Barobill Billing API (바로빌 과금 관리)
+Route::prefix('barobill/billing')->group(function () {
+    Route::get('/subscriptions', [BarobillBillingController::class, 'subscriptions'])->name('v1.barobill.billing.subscriptions');
+    Route::post('/subscriptions', [BarobillBillingController::class, 'saveSubscription'])->name('v1.barobill.billing.subscriptions.store');
+    Route::delete('/subscriptions/{id}', [BarobillBillingController::class, 'cancelSubscription'])->whereNumber('id')->name('v1.barobill.billing.subscriptions.cancel');
+    Route::get('/list', [BarobillBillingController::class, 'billingList'])->name('v1.barobill.billing.list');
+    Route::get('/stats', [BarobillBillingController::class, 'billingStats'])->name('v1.barobill.billing.stats');
+    Route::post('/process', [BarobillBillingController::class, 'processBilling'])->name('v1.barobill.billing.process');
+    Route::get('/yearly-trend', [BarobillBillingController::class, 'yearlyTrend'])->name('v1.barobill.billing.yearly-trend');
+    Route::get('/pricing-policies', [BarobillBillingController::class, 'pricingPolicies'])->name('v1.barobill.billing.pricing-policies');
+    Route::put('/pricing-policies/{id}', [BarobillBillingController::class, 'updatePricingPolicy'])->whereNumber('id')->name('v1.barobill.billing.pricing-policies.update');
+});
+
+// Barobill Usage API (바로빌 사용량 조회)
+Route::prefix('barobill/usage')->group(function () {
+    Route::get('', [BarobillUsageController::class, 'index'])->name('v1.barobill.usage.index');
+    Route::get('/stats', [BarobillUsageController::class, 'stats'])->name('v1.barobill.usage.stats');
+    Route::get('/price-info', [BarobillUsageController::class, 'priceInfo'])->name('v1.barobill.usage.price-info');
+    Route::get('/{memberId}', [BarobillUsageController::class, 'show'])->whereNumber('memberId')->name('v1.barobill.usage.show');
+});
+
 // Bad Debt API (악성채권 추심관리)
 Route::prefix('bad-debts')->group(function () {
     Route::get('', [BadDebtController::class, 'index'])->name('v1.bad-debts.index');