diff --git a/docker/redis/Dockerfile b/docker/redis/Dockerfile
--- a/docker/redis/Dockerfile
+++ b/docker/redis/Dockerfile
@@ -1,5 +1,6 @@
 FROM fedora:30
 
+ENV container docker
 ENV SYSTEMD_PAGER=''
 
 RUN dnf -y install \
diff --git a/src/.gitignore b/src/.gitignore
--- a/src/.gitignore
+++ b/src/.gitignore
@@ -1,3 +1,4 @@
+*.swp
 database/database.sqlite
 node_modules/
 package-lock.json
diff --git a/src/app/Console/Commands/WalletTransactions.php b/src/app/Console/Commands/WalletTransactions.php
new file mode 100644
--- /dev/null
+++ b/src/app/Console/Commands/WalletTransactions.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace App\Console\Commands;
+
+use Illuminate\Console\Command;
+
+class WalletTransactions extends Command
+{
+    /**
+     * The name and signature of the console command.
+     *
+     * @var string
+     */
+    protected $signature = 'wallet:transactions {--detail} {wallet}';
+
+    /**
+     * The console command description.
+     *
+     * @var string
+     */
+    protected $description = 'List the transactions against a wallet.';
+
+    /**
+     * Create a new command instance.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        parent::__construct();
+    }
+
+    /**
+     * Execute the console command.
+     *
+     * @return mixed
+     */
+    public function handle()
+    {
+        $wallet = \App\Wallet::where('id', $this->argument('wallet'))->first();
+
+        if (!$wallet) {
+            return 1;
+        }
+
+        foreach ($wallet->transactions() as $transaction) {
+            $this->info(
+                sprintf(
+                    "%s: %s %s",
+                    $transaction->id,
+                    $transaction->created_at,
+                    $transaction->toString()
+                )
+            );
+
+            if ($this->option('detail')) {
+                $elements = \App\Transaction::where('transaction_id', $transaction->id)
+                    ->orderBy('created_at')->get();
+
+                foreach ($elements as $element) {
+                    $this->info(
+                        sprintf(
+                            "  + %s: %s %s",
+                            $element->id,
+                            $element->created_at,
+                            $element->toString()
+                        )
+                    );
+                }
+            }
+        }
+    }
+}
diff --git a/src/app/Entitlement.php b/src/app/Entitlement.php
--- a/src/app/Entitlement.php
+++ b/src/app/Entitlement.php
@@ -53,13 +53,37 @@
     ];
 
     /**
+     * Create a transaction record for this entitlement.
+     *
+     * @param string $type The type of transaction ('created', 'billed', 'deleted'), but use the
+     *                     \App\Transaction constants.
+     * @param int $amount  The amount involved in cents
+     *
+     * @return string The transaction ID
+     */
+    public function createTransaction($type, $amount = null)
+    {
+        $transaction = \App\Transaction::create(
+            [
+                'user_email' => \App\Utils::userEmailOrNull(),
+                'object_id' => $this->id,
+                'object_type' => \App\Entitlement::class,
+                'type' => $type,
+                'amount' => $amount
+            ]
+        );
+
+        return $transaction->id;
+    }
+
+    /**
      * Principally entitleable objects such as 'Domain' or 'User'.
      *
      * @return mixed
      */
     public function entitleable()
     {
-        return $this->morphTo();
+        return $this->morphTo()->withTrashed();
     }
 
     /**
diff --git a/src/app/Http/Controllers/API/V4/Admin/WalletsController.php b/src/app/Http/Controllers/API/V4/Admin/WalletsController.php
--- a/src/app/Http/Controllers/API/V4/Admin/WalletsController.php
+++ b/src/app/Http/Controllers/API/V4/Admin/WalletsController.php
@@ -42,7 +42,7 @@
         $result['provider'] = $provider->name();
         $result['providerLink'] = $provider->customerLink($wallet);
 
-        return $result;
+        return response()->json($result);
     }
 
     /**
diff --git a/src/app/Http/Controllers/API/V4/WalletsController.php b/src/app/Http/Controllers/API/V4/WalletsController.php
--- a/src/app/Http/Controllers/API/V4/WalletsController.php
+++ b/src/app/Http/Controllers/API/V4/WalletsController.php
@@ -45,7 +45,7 @@
     /**
      * Display the specified resource.
      *
-     * @param int $id
+     * @param string $id
      *
      * @return \Illuminate\Http\JsonResponse
      */
diff --git a/src/app/Observers/EntitlementObserver.php b/src/app/Observers/EntitlementObserver.php
--- a/src/app/Observers/EntitlementObserver.php
+++ b/src/app/Observers/EntitlementObserver.php
@@ -67,6 +67,8 @@
     {
         $entitlement->entitleable->updated_at = Carbon::now();
         $entitlement->entitleable->save();
+
+        $entitlement->createTransaction(\App\Transaction::ENTITLEMENT_CREATED);
     }
 
     /**
@@ -87,5 +89,7 @@
 
         $entitlement->entitleable->updated_at = Carbon::now();
         $entitlement->entitleable->save();
+
+        $entitlement->createTransaction(\App\Transaction::ENTITLEMENT_DELETED);
     }
 }
diff --git a/src/app/Observers/TransactionObserver.php b/src/app/Observers/TransactionObserver.php
new file mode 100644
--- /dev/null
+++ b/src/app/Observers/TransactionObserver.php
@@ -0,0 +1,26 @@
+<?php
+
+namespace App\Observers;
+
+use App\Transaction;
+
+class TransactionObserver
+{
+    /**
+     * Ensure the transaction ID is a custom ID (uuid).
+     *
+     * @param \App\Transaction $transaction The transaction object
+     *
+     * @return void
+     */
+    public function creating(Transaction $transaction): void
+    {
+        while (true) {
+            $allegedly_unique = \App\Utils::uuidStr();
+            if (!Transaction::find($allegedly_unique)) {
+                $transaction->{$transaction->getKeyName()} = $allegedly_unique;
+                break;
+            }
+        }
+    }
+}
diff --git a/src/app/Observers/UserObserver.php b/src/app/Observers/UserObserver.php
--- a/src/app/Observers/UserObserver.php
+++ b/src/app/Observers/UserObserver.php
@@ -111,9 +111,12 @@
 
         // Entitlements do not have referential integrity on the entitled object, so this is our
         // way of doing an onDelete('cascade') without the foreign key.
-        Entitlement::where('entitleable_id', $user->id)
-            ->where('entitleable_type', User::class)
-            ->delete();
+        $entitlements = Entitlement::where('entitleable_id', $user->id)
+            ->where('entitleable_type', User::class)->get();
+
+        foreach ($entitlements as $entitlement) {
+            $entitlement->delete();
+        }
 
         // Remove owned users/domains
         $wallets = $user->wallets()->pluck('id')->all();
diff --git a/src/app/Providers/AppServiceProvider.php b/src/app/Providers/AppServiceProvider.php
--- a/src/app/Providers/AppServiceProvider.php
+++ b/src/app/Providers/AppServiceProvider.php
@@ -32,6 +32,7 @@
         \App\Plan::observe(\App\Observers\PlanObserver::class);
         \App\SignupCode::observe(\App\Observers\SignupCodeObserver::class);
         \App\Sku::observe(\App\Observers\SkuObserver::class);
+        \App\Transaction::observe(\App\Observers\TransactionObserver::class);
         \App\User::observe(\App\Observers\UserObserver::class);
         \App\UserAlias::observe(\App\Observers\UserAliasObserver::class);
         \App\UserSetting::observe(\App\Observers\UserSettingObserver::class);
diff --git a/src/app/Providers/Payment/Stripe.php b/src/app/Providers/Payment/Stripe.php
--- a/src/app/Providers/Payment/Stripe.php
+++ b/src/app/Providers/Payment/Stripe.php
@@ -328,6 +328,10 @@
                 }
 
                 break;
+
+            default:
+                \Log::debug("Unhandled Stripe event: " . var_export($payload, true));
+                break;
         }
 
         return 200;
diff --git a/src/app/Transaction.php b/src/app/Transaction.php
new file mode 100644
--- /dev/null
+++ b/src/app/Transaction.php
@@ -0,0 +1,207 @@
+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Transaction extends Model
+{
+    protected $fillable = [
+        // actor, if any
+        'user_email',
+
+        // entitlement, wallet
+        'object_id',
+        'object_type',
+
+        // entitlement: created, deleted, billed
+        // wallet: debit, credit, award, penalty
+        'type',
+
+        'amount',
+
+        'description',
+
+        // parent, for example wallet debit is parent for entitlements charged.
+        'transaction_id'
+    ];
+
+    /** @var array Casts properties as type */
+    protected $casts = [
+        'amount' => 'integer',
+    ];
+
+    /** @var boolean This model uses an automatically incrementing integer primary key? */
+    public $incrementing = false;
+
+    /** @var string The type of the primary key */
+    protected $keyType = 'string';
+
+    public const ENTITLEMENT_BILLED = 'billed';
+    public const ENTITLEMENT_CREATED = 'created';
+    public const ENTITLEMENT_DELETED = 'deleted';
+
+    public const WALLET_AWARD = 'award';
+    public const WALLET_CREDIT = 'credit';
+    public const WALLET_DEBIT = 'debit';
+    public const WALLET_PENALTY = 'penalty';
+
+    public function entitlement()
+    {
+        if ($this->object_type !== \App\Entitlement::class) {
+            return null;
+        }
+
+        return \App\Entitlement::withTrashed()->where('id', $this->object_id)->first();
+    }
+
+    public function setTypeAttribute($value)
+    {
+        switch ($value) {
+            case self::ENTITLEMENT_BILLED:
+            case self::ENTITLEMENT_CREATED:
+            case self::ENTITLEMENT_DELETED:
+                // TODO: Must be an entitlement.
+                $this->attributes['type'] = $value;
+                break;
+
+            case self::WALLET_AWARD:
+            case self::WALLET_CREDIT:
+            case self::WALLET_DEBIT:
+            case self::WALLET_PENALTY:
+                // TODO: This must be a wallet.
+                $this->attributes['type'] = $value;
+                break;
+
+            default:
+                throw new \Exception("Invalid type value");
+        }
+    }
+
+    public function toArray()
+    {
+        $result = [
+            'user_email' => $this->user_email,
+            'entitlement_cost' => $this->getEntitlementCost(),
+            'object_email' => $this->getEntitlementObjectEmail(),
+            'sku_title' => $this->getEntitlementSkuTitle(),
+            'wallet_description' => $this->getWalletDescription(),
+            'description' => $this->{'description'},
+            'amount' => $this->amount
+        ];
+
+        return $result;
+    }
+
+    public function toString()
+    {
+        $label = $this->objectTypeToLabelString() . '-' . $this->{'type'};
+
+        return \trans("transactions.{$label}", $this->toArray());
+    }
+
+    public function wallet()
+    {
+        if ($this->object_type !== \App\Wallet::class) {
+            return null;
+        }
+
+        return \App\Wallet::where('id', $this->object_id)->first();
+    }
+
+    /**
+     * Return the costs for this entitlement.
+     *
+     * @return int|null
+     */
+    private function getEntitlementCost(): ?int
+    {
+        if (!$this->entitlement()) {
+            return null;
+        }
+
+        // FIXME: without wallet discount
+        // FIXME: in cents
+        // FIXME: without wallet currency
+        $cost = $this->entitlement()->cost;
+
+        $discount = $this->entitlement()->wallet->getDiscountRate();
+
+        return $cost * $discount;
+    }
+
+    /**
+     * Return the object email if any. This is the email for the target user entitlement.
+     *
+     * @return string|null
+     */
+    private function getEntitlementObjectEmail(): ?string
+    {
+        $entitlement = $this->entitlement();
+
+        if (!$entitlement) {
+            return null;
+        }
+
+        $entitleable = $entitlement->entitleable;
+
+        if (!$entitleable) {
+            \Log::debug("No entitleable for {$entitlement->id} ?");
+            return null;
+        }
+
+        return $entitleable->email;
+    }
+
+    /**
+     * Return the title for the SKU this entitlement is for.
+     *
+     * @return string|null
+     */
+    private function getEntitlementSkuTitle(): ?string
+    {
+        if (!$this->entitlement()) {
+            return null;
+        }
+
+        return $this->entitlement()->sku->{'title'};
+    }
+
+    /**
+     * Return the description for the wallet, if any, or 'default wallet'.
+     *
+     * @return string
+     */
+    public function getWalletDescription()
+    {
+        $description = null;
+
+        if ($entitlement = $this->entitlement()) {
+            $description = $entitlement->wallet->{'description'};
+        }
+
+        if ($wallet = $this->wallet()) {
+            $description = $wallet->{'description'};
+        }
+
+        return $description ?: 'Default wallet';
+    }
+
+    /**
+     * Get a string for use in translation tables derived from the object type.
+     *
+     * @return string|null
+     */
+    private function objectTypeToLabelString(): ?string
+    {
+        if ($this->object_type == \App\Entitlement::class) {
+            return 'entitlement';
+        }
+
+        if ($this->object_type == \App\Wallet::class) {
+            return 'wallet';
+        }
+
+        return null;
+    }
+}
diff --git a/src/app/Utils.php b/src/app/Utils.php
--- a/src/app/Utils.php
+++ b/src/app/Utils.php
@@ -3,6 +3,8 @@
 namespace App;
 
 use App\Rules\UserEmailLocal;
+use Carbon\Carbon;
+use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\Validator;
 use Illuminate\Support\Str;
 use Ramsey\Uuid\Uuid;
@@ -13,6 +15,19 @@
 class Utils
 {
     /**
+     * Return the number of days in the month prior to this one.
+     *
+     * @return int
+     */
+    public static function daysInLastMonth()
+    {
+        $start = new Carbon('first day of last month');
+        $end = new Carbon('last day of last month');
+
+        return $start->diffInDays($end);
+    }
+
+    /**
      * Provide all unique combinations of elements in $input, with order and duplicates irrelevant.
      *
      * @param array $input The input array of elements.
@@ -31,6 +46,22 @@
     }
 
     /**
+     * Returns the current user's email address or null.
+     *
+     * @return string
+     */
+    public static function userEmailOrNull(): ?string
+    {
+        $user = Auth::user();
+
+        if (!$user) {
+            return null;
+        }
+
+        return $user->email;
+    }
+
+    /**
      * Returns a UUID in the form of an integer.
      *
      * @return integer
@@ -80,6 +111,27 @@
     }
 
     /**
+     * Create self URL
+     *
+     * @param string $route Route/Path
+     *
+     * @return string Full URL
+     */
+    public static function serviceUrl(string $route): string
+    {
+        $url = \url($route);
+
+        $app_url = trim(\config('app.url'), '/');
+        $pub_url = trim(\config('app.public_url'), '/');
+
+        if ($pub_url != $app_url) {
+            $url = str_replace($app_url, $pub_url, $url);
+        }
+
+        return $url;
+    }
+
+    /**
      * Create a configuration/environment data to be passed to
      * the UI
      *
@@ -105,27 +157,6 @@
     }
 
     /**
-     * Create self URL
-     *
-     * @param string $route Route/Path
-     *
-     * @return string Full URL
-     */
-    public static function serviceUrl(string $route): string
-    {
-        $url = \url($route);
-
-        $app_url = trim(\config('app.url'), '/');
-        $pub_url = trim(\config('app.public_url'), '/');
-
-        if ($pub_url != $app_url) {
-            $url = str_replace($app_url, $pub_url, $url);
-        }
-
-        return $url;
-    }
-
-    /**
      * Email address (login or alias) validation
      *
      * @param string    $email    Email address
diff --git a/src/app/Wallet.php b/src/app/Wallet.php
--- a/src/app/Wallet.php
+++ b/src/app/Wallet.php
@@ -7,6 +7,7 @@
 use Carbon\Carbon;
 use Iatstuti\Database\Support\NullableFields;
 use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Facades\DB;
 
 /**
  * The eloquent definition of a wallet -- a container with a chunk of change.
@@ -60,8 +61,12 @@
     public function chargeEntitlements($apply = true)
     {
         $charges = 0;
-        $discount = $this->discount ? $this->discount->discount : 0;
-        $discount = (100 - $discount) / 100;
+        $discount = $this->getDiscountRate();
+
+        DB::beginTransaction();
+
+        // used to parent individual entitlement billings to the wallet debit.
+        $entitlementTransactions = [];
 
         foreach ($this->entitlements()->get()->fresh() as $entitlement) {
             // This entitlement has been created less than or equal to 14 days ago (this is at
@@ -91,47 +96,39 @@
                 $entitlement->updated_at = $entitlement->updated_at->copy()->addMonthsWithoutOverflow($diff);
                 $entitlement->save();
 
-                // TODO: This would be better done out of the loop (debit() will call save()),
-                //       but then, maybe we should use a db transaction
-                $this->debit($cost);
+                if ($cost == 0) {
+                    continue;
+                }
+
+                $entitlementTransactions[] = $entitlement->createTransaction(
+                    \App\Transaction::ENTITLEMENT_BILLED,
+                    $cost
+                );
             }
         }
 
-        return $charges;
-    }
+        if ($apply) {
+            $this->debit($charges, $entitlementTransactions);
+        }
 
-    /**
-     * The discount assigned to the wallet.
-     *
-     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
-     */
-    public function discount()
-    {
-        return $this->belongsTo('App\Discount', 'discount_id', 'id');
-    }
+        DB::commit();
 
-    /**
-     * Calculate the expected charges to this wallet.
-     *
-     * @return int
-     */
-    public function expectedCharges()
-    {
-        return $this->chargeEntitlements(false);
+        return $charges;
     }
 
     /**
-     * Remove a controller from this wallet.
-     *
-     * @param \App\User $user The user to remove as a controller from this wallet.
+     * Controllers of this wallet.
      *
-     * @return void
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
      */
-    public function removeController(User $user)
+    public function controllers()
     {
-        if ($this->controllers->contains($user)) {
-            $this->controllers()->detach($user);
-        }
+        return $this->belongsToMany(
+            'App\User',         // The foreign object definition
+            'user_accounts',    // The table name
+            'wallet_id',      // The local foreign key
+            'user_id'         // The remote foreign key
+        );
     }
 
     /**
@@ -147,38 +144,60 @@
 
         $this->save();
 
+        \App\Transaction::create(
+            [
+                'user_email' => \App\Utils::userEmailOrNull(),
+                'object_id' => $this->id,
+                'object_type' => \App\Wallet::class,
+                'type' => \App\Transaction::WALLET_CREDIT,
+                'amount' => $amount
+            ]
+        );
+
         return $this;
     }
 
     /**
      * Deduct an amount of pecunia from this wallet's balance.
      *
-     * @param int $amount The amount of pecunia to deduct (in cents).
-     *
+     * @param int   $amount The amount of pecunia to deduct (in cents).
+     * @param array $eTIDs  List of transaction IDs for the individual entitlements that make up
+     *                      this debit record, if any.
      * @return Wallet Self
      */
-    public function debit(int $amount): Wallet
+    public function debit(int $amount, array $eTIDs = []): Wallet
     {
+        if ($amount == 0) {
+            return $this;
+        }
+
         $this->balance -= $amount;
 
         $this->save();
 
+        $transaction = \App\Transaction::create(
+            [
+                'user_email' => \App\Utils::userEmailOrNull(),
+                'object_id' => $this->id,
+                'object_type' => \App\Wallet::class,
+                'type' => \App\Transaction::WALLET_DEBIT,
+                'amount' => $amount
+            ]
+        );
+
+        \App\Transaction::whereIn('id', $eTIDs)->update(['transaction_id' => $transaction->id]);
+
         return $this;
     }
 
     /**
-     * Controllers of this wallet.
+     * The discount assigned to the wallet.
      *
-     * @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
+     * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
      */
-    public function controllers()
+    public function discount()
     {
-        return $this->belongsToMany(
-            'App\User',         // The foreign object definition
-            'user_accounts',    // The table name
-            'wallet_id',      // The local foreign key
-            'user_id'         // The remote foreign key
-        );
+        return $this->belongsTo('App\Discount', 'discount_id', 'id');
     }
 
     /**
@@ -192,6 +211,38 @@
     }
 
     /**
+     * Calculate the expected charges to this wallet.
+     *
+     * @return int
+     */
+    public function expectedCharges()
+    {
+        return $this->chargeEntitlements(false);
+    }
+
+    /**
+     * Return the exact, numeric version of the discount to be applied.
+     *
+     * Ranges from 0 - 100.
+     *
+     * @return int
+     */
+    public function getDiscount()
+    {
+        return $this->discount ? $this->discount->discount : 0;
+    }
+
+    /**
+     * The actual discount rate for use in multiplication
+     *
+     * Ranges from 0.00 to 1.00.
+     */
+    public function getDiscountRate()
+    {
+        return (100 - $this->getDiscount()) / 100;
+    }
+
+    /**
      * The owner of the wallet -- the wallet is in his/her back pocket.
      *
      * @return \Illuminate\Database\Eloquent\Relations\BelongsTo
@@ -212,6 +263,20 @@
     }
 
     /**
+     * Remove a controller from this wallet.
+     *
+     * @param \App\User $user The user to remove as a controller from this wallet.
+     *
+     * @return void
+     */
+    public function removeController(User $user)
+    {
+        if ($this->controllers->contains($user)) {
+            $this->controllers()->detach($user);
+        }
+    }
+
+    /**
      * Any (additional) properties of this wallet.
      *
      * @return \Illuminate\Database\Eloquent\Relations\HasMany
@@ -220,4 +285,19 @@
     {
         return $this->hasMany('App\WalletSetting');
     }
+
+    /**
+     * Retrieve the transactions against this wallet.
+     *
+     * @return iterable \App\Transaction
+     */
+    public function transactions()
+    {
+        return \App\Transaction::where(
+            [
+                'object_id' => $this->id,
+                'object_type' => \App\Wallet::class
+            ]
+        )->orderBy('created_at')->get();
+    }
 }
diff --git a/src/database/migrations/2014_10_12_000000_create_users_table.php b/src/database/migrations/2014_10_12_000000_create_users_table.php
--- a/src/database/migrations/2014_10_12_000000_create_users_table.php
+++ b/src/database/migrations/2014_10_12_000000_create_users_table.php
@@ -4,6 +4,7 @@
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Migrations\Migration;
 
+// phpcs:ignore
 class CreateUsersTable extends Migration
 {
     /**
@@ -21,7 +22,6 @@
                 $table->string('password')->nullable();
                 $table->string('password_ldap')->nullable();
                 $table->smallinteger('status');
-//                $table->rememberToken();
                 $table->timestamps();
 
                 $table->primary('id');
diff --git a/src/database/migrations/2020_03_16_100000_create_payments.php b/src/database/migrations/2020_03_16_100000_create_payments.php
--- a/src/database/migrations/2020_03_16_100000_create_payments.php
+++ b/src/database/migrations/2020_03_16_100000_create_payments.php
@@ -4,6 +4,7 @@
 use Illuminate\Database\Schema\Blueprint;
 use Illuminate\Database\Migrations\Migration;
 
+// phpcs:ignore
 class CreatePayments extends Migration
 {
     /**
diff --git a/src/database/migrations/2020_05_21_080131_create_transactions_table.php b/src/database/migrations/2020_05_21_080131_create_transactions_table.php
new file mode 100644
--- /dev/null
+++ b/src/database/migrations/2020_05_21_080131_create_transactions_table.php
@@ -0,0 +1,44 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+// phpcs:ignore
+class CreateTransactionsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create(
+            'transactions',
+            function (Blueprint $table) {
+                $table->string('id', 36)->primary();
+                $table->string('user_email')->nullable();
+                $table->string('object_id', 36)->index();
+                $table->string('object_type', 36)->index();
+                $table->string('type', 8);
+                $table->integer('amount')->nullable();
+                $table->string('description')->nullable();
+                $table->string('transaction_id', 36)->nullable()->index();
+                $table->timestamps();
+
+                $table->index(['object_id', 'object_type']);
+            }
+        );
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('transactions');
+    }
+}
diff --git a/src/package-lock.json b/src/package-lock.json
--- a/src/package-lock.json
+++ b/src/package-lock.json
@@ -833,12 +833,6 @@
                 "to-fast-properties": "^2.0.0"
             }
         },
-        "@deveodk/vue-toastr": {
-            "version": "1.1.0",
-            "resolved": "https://registry.npmjs.org/@deveodk/vue-toastr/-/vue-toastr-1.1.0.tgz",
-            "integrity": "sha512-G+VontfAl088m/9MDfJ/+BxDIYmXAHZglMz+VOMTFgp9aPMt88P1b3xlJxA43xsQBot2tmcwAjNVphYIibtFpQ==",
-            "dev": true
-        },
         "@fortawesome/fontawesome-common-types": {
             "version": "0.2.27",
             "resolved": "https://registry.npmjs.org/@fortawesome/fontawesome-common-types/-/fontawesome-common-types-0.2.27.tgz",
@@ -1774,9 +1768,9 @@
             "dev": true
         },
         "bootstrap": {
-            "version": "4.4.1",
-            "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.4.1.tgz",
-            "integrity": "sha512-tbx5cHubwE6e2ZG7nqM3g/FZ5PQEDMWmMGNrCUBVRPHXTJaH7CBDdsLeu3eCh3B1tzAxTnAbtmrzvWEvT2NNEA==",
+            "version": "4.5.0",
+            "resolved": "https://registry.npmjs.org/bootstrap/-/bootstrap-4.5.0.tgz",
+            "integrity": "sha512-Z93QoXvodoVslA+PWNdk23Hze4RBYIkpb5h8I2HY2Tu2h7A0LpAgLcyrhrSUyo2/Oxm2l1fRZPs1e5hnxnliXA==",
             "dev": true
         },
         "brace-expansion": {
@@ -6076,9 +6070,9 @@
             "dev": true
         },
         "jquery": {
-            "version": "3.4.1",
-            "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.4.1.tgz",
-            "integrity": "sha512-36+AdBzCL+y6qjw5Tx7HgzeGCzC81MDDgaUP8ld2zhx58HdqXGoBd+tHdrBMiyjGQs0Hxs/MLZTu/eHNJJuWPw==",
+            "version": "3.5.1",
+            "resolved": "https://registry.npmjs.org/jquery/-/jquery-3.5.1.tgz",
+            "integrity": "sha512-XwIBPqcMn57FxfT+Go5pzySnm4KWkT1Tv7gjrpT1srtf8Weynl6R273VJ5GjkRb51IzMp5nbaPjJXMWeju2MKg==",
             "dev": true
         },
         "js-levenshtein": {
@@ -7585,9 +7579,9 @@
             }
         },
         "popper.js": {
-            "version": "1.15.0",
-            "resolved": "https://registry.npmjs.org/popper.js/-/popper.js-1.15.0.tgz",
-            "integrity": "sha512-w010cY1oCUmI+9KwwlWki+r5jxKfTFDVoadl7MSrIujHU5MJ5OR6HTDj6Xo8aoR/QsA56x8jKjA59qGH4ELtrA==",
+            "version": "1.16.1",
+            "resolved": "https://registry.npmjs.org/popper.js/-/popper.js-1.16.1.tgz",
+            "integrity": "sha512-Wb4p1J4zyFTbM+u6WuO4XstYx4Ky9Cewe4DWrel7B0w6VVICvPwdOpotjzcf6eD8TsckVnIMNONQyPIUFOUbCQ==",
             "dev": true
         },
         "portfinder": {
diff --git a/src/resources/lang/en/transactions.php b/src/resources/lang/en/transactions.php
new file mode 100644
--- /dev/null
+++ b/src/resources/lang/en/transactions.php
@@ -0,0 +1,12 @@
+<?php
+
+return [
+    'entitlement-created' => ':user_email created :sku_title for :object_email',
+    'entitlement-billed' => ':sku_title for :object_email is billed at :amount',
+    'entitlement-deleted' => ':user_email deleted :sku_title for :object_email',
+
+    'wallet-award' => 'Bonus of :amount awarded to :wallet_description; :description',
+    'wallet-credit' => ':amount was added to the balance of :wallet_description',
+    'wallet-debit' => ':amount was deducted from the balance of :wallet_description',
+    'wallet-penalty' => 'The balance of wallet :wallet_description was reduced by :amount; :description'
+];
diff --git a/src/tests/Feature/Controller/PaymentsMollieTest.php b/src/tests/Feature/Controller/PaymentsMollieTest.php
--- a/src/tests/Feature/Controller/PaymentsMollieTest.php
+++ b/src/tests/Feature/Controller/PaymentsMollieTest.php
@@ -9,10 +9,11 @@
 use App\WalletSetting;
 use GuzzleHttp\Psr7\Response;
 use Tests\TestCase;
+use Tests\MollieMocksTrait;
 
 class PaymentsMollieTest extends TestCase
 {
-    use \Tests\MollieMocksTrait;
+    use MollieMocksTrait;
 
     /**
      * {@inheritDoc}
diff --git a/src/tests/Feature/Controller/PaymentsStripeTest.php b/src/tests/Feature/Controller/PaymentsStripeTest.php
--- a/src/tests/Feature/Controller/PaymentsStripeTest.php
+++ b/src/tests/Feature/Controller/PaymentsStripeTest.php
@@ -9,10 +9,11 @@
 use App\WalletSetting;
 use GuzzleHttp\Psr7\Response;
 use Tests\TestCase;
+use Tests\StripeMocksTrait;
 
 class PaymentsStripeTest extends TestCase
 {
-    use \Tests\StripeMocksTrait;
+    use StripeMocksTrait;
 
     /**
      * {@inheritDoc}
diff --git a/src/tests/Unit/TransactionTest.php b/src/tests/Unit/TransactionTest.php
new file mode 100644
--- /dev/null
+++ b/src/tests/Unit/TransactionTest.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Tests\Unit;
+
+use Tests\TestCase;
+
+class TransactionTest extends TestCase
+{
+    public function setUp(): void
+    {
+        parent::setUp();
+    }
+
+    public function tearDown(): void
+    {
+        parent::tearDown();
+    }
+
+    public function testLabel()
+    {
+        $transactions = \App\Transaction::all();
+
+        foreach ($transactions as $transaction) {
+            $this->assertNotNull($transaction->toString());
+        }
+    }
+
+    public function testWalletPenalty()
+    {
+        $user = $this->getTestUser('jane@kolabnow.com');
+        $wallet = $user->wallets()->first();
+
+        $transaction = \App\Transaction::create(
+            [
+                'object_id' => $wallet->id,
+                'object_type' => \App\Wallet::class,
+                'type' => \App\Transaction::WALLET_PENALTY,
+                'amount' => 9
+            ]
+        );
+
+        $this->assertEquals($transaction->{'type'}, 'penalty');
+    }
+
+    public function testInvalidType()
+    {
+        $user = $this->getTestUser('jane@kolabnow.com');
+        $wallet = $user->wallets()->first();
+
+        $this->expectException(\Exception::class);
+
+        $transaction = \App\Transaction::create(
+            [
+                'object_id' => $wallet->id,
+                'object_type' => \App\Wallet::class,
+                'type' => 'invalid',
+                'amount' => 9
+            ]
+        );
+    }
+}