diff --git a/app/resources/routes/04_ventas.php b/app/resources/routes/04_ventas.php
index 2ce4212..8ae9b6e 100644
--- a/app/resources/routes/04_ventas.php
+++ b/app/resources/routes/04_ventas.php
@@ -23,6 +23,7 @@ $app->group('/venta/{venta_id:[0-9]+}', function($app) {
         $app->get('[/]', [Ventas::class, 'propiedad']);
     });
     $app->group('/pie', function($app) {
+        $app->get('/add[/]', [Ventas\Pies::class, 'add']);
         $app->group('/cuotas', function($app) {
             $app->get('[/]', [Ventas::class, 'cuotas']);
         });
diff --git a/app/resources/routes/api/ventas.php b/app/resources/routes/api/ventas.php
index c79874b..6374a98 100644
--- a/app/resources/routes/api/ventas.php
+++ b/app/resources/routes/api/ventas.php
@@ -54,6 +54,9 @@ $app->group('/venta/{venta_id}', function($app) {
     $app->group('/propietario', function($app) {
         $app->put('/edit[/]', [Ventas::class, 'propietario']);
     });
+    $app->group('/pie', function($app) {
+        $app->post('/add[/]', [Ventas\Pies::class, 'add']);
+    });
     $app->post('[/]', [Ventas::class, 'edit']);
     $app->get('[/]', [Ventas::class, 'get']);
 });
diff --git a/app/resources/views/ventas/pies/add.blade.php b/app/resources/views/ventas/pies/add.blade.php
new file mode 100644
index 0000000..fb378d2
--- /dev/null
+++ b/app/resources/views/ventas/pies/add.blade.php
@@ -0,0 +1,50 @@
+@extends('ventas.base')
+
+@section('venta_subtitle')
+    Pie
+@endsection
+
+@section('venta_content')
+    <div class="ui basic compact segment">
+        Valor Promesa: {{ $format->ufs($venta->valor) }} <br />
+        10% {{ $format->ufs($venta->valor * 0.1) }}
+    </div>
+    <form class="ui form" id="add_pie">
+        <input type="hidden" name="venta" value="{{ $venta->id }}" />
+        <input type="hidden" name="fecha" value="{{ $venta->fecha->format('Y-m-d') }}" />
+        <div class="three wide field">
+            <label for="valor">Valor</label>
+            <div class="ui right labeled input">
+                <input type="text" name="valor" id="valor" value="{{ round($venta->valor * 0.1, 2) }}" />
+                <div class="ui basic label">UF</div>
+            </div>
+        </div>
+        <div class="three wide field">
+            <label for="cuotas"># Cuotas</label>
+            <input type="number" name="cuotas" id="cuotas" />
+        </div>
+        <button class="ui button">Agregar</button>
+    </form>
+@endsection
+
+@push('page_scripts')
+    <script>
+        $(document).ready(() => {
+            $('#add_pie').submit(event => {
+                event.preventDefault()
+                const data = new FormData(event.currentTarget)
+                return fetchAPI('{{ $urls->api }}/venta/{{ $venta->id }}/pie/add', {method: 'post', body: data}).then(response => {
+                    if (response.ok) {
+                        return response.json()
+                    }
+                }).then(json => {
+                    if (json.success) {
+                        window.location = '{{$urls->base}}/venta/{{$venta->id}}'
+                        return true
+                    }
+                    return false
+                })
+            })
+        })
+    </script>
+@endpush
diff --git a/app/resources/views/ventas/show/forma_pago/pie.blade.php b/app/resources/views/ventas/show/forma_pago/pie.blade.php
index 6f3df32..0142a58 100644
--- a/app/resources/views/ventas/show/forma_pago/pie.blade.php
+++ b/app/resources/views/ventas/show/forma_pago/pie.blade.php
@@ -1,42 +1,52 @@
-@if ($pie !== null)
 <tr>
     <td>
         Pie
-        <sub>
-            <a href="{{$urls->base}}/venta/{{$venta->id}}/pie">
-                <i class="edit icon"></i>
-            </a>
-        </sub>
-    </td>
-    <td></td>
-    <td class="right aligned">{{$format->ufs($pie->valor)}}</td>
-    <td class="right aligned">{{$format->pesos($pie->valor * $pie->uf)}}</td>
-    <td class="right aligned">Cuotas</td>
-    <td>
-        <a href="{{$urls->base}}/venta/{{$venta->id}}/pie/cuotas">
-            <span data-tooltip="Pagadas">{{count($pie->cuotas(true, true))}}</span>/{{$pie->cuotas}}
-        </a>
-        @if (count($pie->cuotas(vigentes: true)) < $pie->cuotas)
-            <a href="{{$urls->base}}/ventas/pie/{{$pie->id}}/cuotas/add">
+        @if ($pie !== null)
+            <sub>
+                <a href="{{$urls->base}}/venta/{{$venta->id}}/pie">
+                    <i class="edit icon"></i>
+                </a>
+            </sub>
+        @else
+            <a href="{{$urls->base}}/venta/{{$venta->id}}/pie/add">
                 <i class="plus icon"></i>
             </a>
         @endif
     </td>
-</tr>
-<tr>
-    <td>Pagado</td>
     <td></td>
-    <td class="right aligned">{{$format->ufs($pie->pagado())}}</td>
-    <td class="right aligned">{{$format->pesos($pie->pagado('pesos'))}}</td>
-    <td colspan="2"></td>
-</tr>
-@if ($pie->reajuste)
-<tr>
-    <td>Reajuste</td>
-    <td></td>
-    <td class="right aligned">{{$format->ufs($pie->reajuste->valor())}}</td>
-    <td class="right aligned">{{$format->pesos($pie->reajuste->valor)}}</td>
-    <td colspan="2"></td>
+    @if ($pie !== null)
+        <td class="right aligned">{{$format->ufs($pie->valor)}}</td>
+        <td class="right aligned">{{$format->pesos($pie->valor * $pie->uf)}}</td>
+        <td class="right aligned">Cuotas</td>
+        <td>
+            <a href="{{$urls->base}}/venta/{{$venta->id}}/pie/cuotas">
+                <span data-tooltip="Pagadas">{{count($pie->cuotas(true, true))}}</span>/{{$pie->cuotas}}
+            </a>
+            @if (count($pie->cuotas(vigentes: true)) < $pie->cuotas)
+                <a href="{{$urls->base}}/ventas/pie/{{$pie->id}}/cuotas/add">
+                    <i class="plus icon"></i>
+                </a>
+            @endif
+        </td>
+    @else
+        <td colspan="4"></td>
+    @endif
 </tr>
-@endif
+@if ($pie !== null)
+    <tr>
+        <td>Pagado</td>
+        <td></td>
+        <td class="right aligned">{{$format->ufs($pie->pagado())}}</td>
+        <td class="right aligned">{{$format->pesos($pie->pagado('pesos'))}}</td>
+        <td colspan="2"></td>
+    </tr>
+    @if ($pie->reajuste)
+        <tr>
+            <td>Reajuste</td>
+            <td></td>
+            <td class="right aligned">{{$format->ufs($pie->reajuste->valor())}}</td>
+            <td class="right aligned">{{$format->pesos($pie->reajuste->valor)}}</td>
+            <td colspan="2"></td>
+        </tr>
+    @endif
 @endif
diff --git a/app/src/Controller/API/Ventas/Pies.php b/app/src/Controller/API/Ventas/Pies.php
index 9c90638..1d5eca1 100644
--- a/app/src/Controller/API/Ventas/Pies.php
+++ b/app/src/Controller/API/Ventas/Pies.php
@@ -5,7 +5,8 @@ use Psr\Http\Message\ServerRequestInterface;
 use Psr\Http\Message\ResponseInterface;
 use Incoviba\Controller\API\{withJson, emptyBody};
 use Incoviba\Controller\withRedis;
-use Incoviba\Common\Implement\Exception\{EmptyRedis, EmptyResult};
+use Incoviba\Common\Implement\Exception\EmptyResult;
+use Incoviba\Exception\ServiceAction\{Create, Read, Update};
 use Incoviba\Service;
 
 class Pies
@@ -27,4 +28,35 @@ class Pies
         } catch (EmptyResult) {}
         return $this->withJson($response, $output);
     }
+    public function add(ServerRequestInterface $request, ResponseInterface $response, Service\Venta $ventaService,
+                        Service\Venta\Pie $pieService, int $venta_id): ResponseInterface
+    {
+        $input = $request->getParsedBody();
+        $output = [
+            'venta_id' => $venta_id,
+            'input' => $input,
+            'pie' => null,
+            'success' => false
+        ];
+        try {
+            $venta = $ventaService->getById($venta_id);
+
+        } catch (Read $exception) {
+            return $this->withError($response, $exception);
+        }
+        try {
+            $pie = $pieService->add($input);
+        } catch (Create $exception) {
+            return $this->withError($response, $exception);
+        }
+        try {
+            $ventaService->edit($venta, ['pie' => $pie->id]);
+
+            $output['pie'] = $pie;
+            $output['success'] = true;
+        } catch (Update $exception) {
+            return $this->withError($response, $exception);
+        }
+        return $this->withJson($response, $output);
+    }
 }
diff --git a/app/src/Controller/Ventas/Pies.php b/app/src/Controller/Ventas/Pies.php
index 3fb9fcc..d9491fd 100644
--- a/app/src/Controller/Ventas/Pies.php
+++ b/app/src/Controller/Ventas/Pies.php
@@ -1,12 +1,12 @@
 <?php
 namespace Incoviba\Controller\Ventas;
 
-use Incoviba\Common\Alias\View;
-use Incoviba\Model;
-use Incoviba\Repository;
-use Incoviba\Service;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\ServerRequestInterface;
+use Incoviba\Common\Alias\View;
+use Incoviba\Exception\ServiceAction\Read;
+use Incoviba\Repository;
+use Incoviba\Service;
 
 class Pies
 {
@@ -21,4 +21,13 @@ class Pies
         $estados = $tipoEstadoPagoRepository->fetchAll('descripcion');
         return $view->render($response, 'ventas.pies.cuotas', compact('pie', 'venta', 'bancos', 'estados', 'ventaRepository'));
     }
+    public function add(ServerRequestInterface $request, ResponseInterface $response, Service\Venta $ventaService,
+                        View $view, int $venta_id): ResponseInterface
+    {
+        $venta = null;
+        try {
+            $venta = $ventaService->getById($venta_id);
+        } catch (Read) {}
+        return $view->render($response, 'ventas.pies.add', compact('venta'));
+    }
 }
diff --git a/app/src/Service/Venta.php b/app/src/Service/Venta.php
index 0ed32fc..d0ead13 100644
--- a/app/src/Service/Venta.php
+++ b/app/src/Service/Venta.php
@@ -4,6 +4,7 @@ namespace Incoviba\Service;
 use Exception;
 use DateTimeImmutable;
 use DateMalformedStringException;
+use Incoviba\Exception\ServiceAction\{Read, Update};
 use Psr\Log\LoggerInterface;
 use Incoviba\Common\Ideal\Service;
 use Incoviba\Common\Implement;
@@ -36,9 +37,18 @@ class Venta extends Service
         parent::__construct($logger);
     }
 
+    /**
+     * @param int $venta_id
+     * @return Model\Venta
+     * @throws Read
+     */
     public function getById(int $venta_id): Model\Venta
     {
-        return $this->process($this->ventaRepository->fetchById($venta_id));
+        try {
+            return $this->process($this->ventaRepository->fetchById($venta_id));
+        } catch (Implement\Exception\EmptyResult $exception) {
+            throw new Read(__CLASS__, $exception);
+        }
     }
     public function getByProyecto(int $proyecto_id): array
     {
@@ -285,6 +295,22 @@ class Venta extends Service
         return $this->formaPagoService->add($data);
     }
 
+    /**
+     * @param Model\Venta $venta
+     * @param array $data
+     * @return Model\Venta
+     * @throws Update
+     */
+    public function edit(Model\Venta $venta, array $data): Model\Venta
+    {
+        try {
+            $filteredData = $this->ventaRepository->filterData($data);
+            return $this->ventaRepository->edit($venta, $filteredData);
+        } catch (Implement\Exception\EmptyResult $exception) {
+            throw new Update(__CLASS__, $exception);
+        }
+    }
+
     protected function addEstado(Model\Venta $venta, Model\Venta\TipoEstadoVenta $tipoEstadoVenta, array $data): void
     {
         try {
diff --git a/app/src/Service/Venta/Pie.php b/app/src/Service/Venta/Pie.php
index 41ca092..0d1382f 100644
--- a/app/src/Service/Venta/Pie.php
+++ b/app/src/Service/Venta/Pie.php
@@ -1,17 +1,22 @@
 <?php
 namespace Incoviba\Service\Venta;
 
+use PDOException;
+use DateTimeImmutable;
+use DateMalformedStringException;
 use Incoviba\Common\Implement\Exception\EmptyResult;
-use Incoviba\Exception\ServiceAction\Read;
-use Incoviba\Repository;
+use Incoviba\Exception\ServiceAction\{Create, Read};
 use Incoviba\Model;
+use Incoviba\Repository;
+use Incoviba\Service\UF;
 
 class Pie
 {
     public function __construct(
         protected Repository\Venta\Pie $pieRepository,
         protected Cuota $cuotaService,
-        protected Pago $pagoService
+        protected Pago $pagoService,
+        protected UF $ufService
     ) {}
 
     public function getById(int $pie_id): Model\Venta\Pie
@@ -27,11 +32,26 @@ class Pie
         }
     }
 
+    /**
+     * @param array $data
+     * @return Model\Venta\Pie
+     * @throws Create
+     */
     public function add(array $data): Model\Venta\Pie
     {
-        $filteredData = $this->pieRepository->filterData($data);
-        $pie = $this->pieRepository->create($filteredData);
-        return $this->pieRepository->save($pie);
+        try {
+            $filteredData = $this->pieRepository->filterData($data);
+            if (!isset($filteredData['uf'])) {
+                try {
+                    $date = new DateTimeImmutable($filteredData['fecha']);
+                    $filteredData['uf'] = $this->ufService->get($date);
+                } catch (DateMalformedStringException) {}
+            }
+            $pie = $this->pieRepository->create($filteredData);
+            return $this->pieRepository->save($pie);
+        } catch (PDOException $exception) {
+            throw new Create(__CLASS__, $exception);
+        }
     }
     public function addCuota(array $data): Model\Venta\Cuota
     {