diff --git a/backend/src/Catalog.Application/Tags/Commands/AddTag.cs b/backend/src/Catalog.Application/Tags/Commands/AddTag.cs
new file mode 100644
index 0000000..247007f
--- /dev/null
+++ b/backend/src/Catalog.Application/Tags/Commands/AddTag.cs
@@ -0,0 +1,47 @@
+using Catalog.Domain.Tags.Entities;
+using Catalog.Domain.Tags.Repositories;
+using Common.Application.Commands;
+using Common.Application.Models;
+using FluentValidation;
+
+namespace Catalog.Application.Tags.Commands;
+
+public static class AddTag
+{
+    public sealed record Command(Guid Id, string Name) : ICommand;
+
+    public sealed class Handler(IUnitOfWork unitOfWork, ITagRepository tagRepository, IValidator<Command> validator) : ICommandHandler<Command>
+    {
+        public async Task<Result> HandleAsync(Command command)
+        {
+            var (id, name) = command;
+
+            var validationResult = await validator.ValidateAsync(command);
+            if (!validationResult.IsValid) return Result.Fail("add-tag-validation");
+
+            var tag = new Tag
+            {
+                Id = id,
+                Name = name
+            };
+
+            await tagRepository.AddAsync(tag);
+            await unitOfWork.CommitAsync();
+
+            return Result.Ok();
+        }
+    }
+
+    public sealed class Validator : AbstractValidator<Command>
+    {
+        public Validator()
+        {
+            RuleFor(x => x.Id)
+                .NotEmpty();
+
+            RuleFor(x => x.Name)
+                .NotEmpty()
+                .MaximumLength(20);
+        }
+    }
+}
\ No newline at end of file
diff --git a/backend/src/Catalog.Domain/Tags/Repositories/ITagRepository.cs b/backend/src/Catalog.Domain/Tags/Repositories/ITagRepository.cs
new file mode 100644
index 0000000..286003a
--- /dev/null
+++ b/backend/src/Catalog.Domain/Tags/Repositories/ITagRepository.cs
@@ -0,0 +1,8 @@
+using Catalog.Domain.Tags.Entities;
+
+namespace Catalog.Domain.Tags.Repositories;
+
+public interface ITagRepository
+{
+    Task AddAsync(Tag tag);
+}
\ No newline at end of file
diff --git a/backend/src/Host.WebApi/Routes/TagRoutes.cs b/backend/src/Host.WebApi/Routes/TagRoutes.cs
index db96aa4..f8d3fe1 100644
--- a/backend/src/Host.WebApi/Routes/TagRoutes.cs
+++ b/backend/src/Host.WebApi/Routes/TagRoutes.cs
@@ -1,5 +1,8 @@
-using Catalog.Application.Tags.Queries;
+using Catalog.Application.Tags.Commands;
+using Catalog.Application.Tags.Queries;
+using Common.Application.Commands;
 using Common.Application.Queries;
+using Host.WebApi.Extensions;
 using Microsoft.AspNetCore.Mvc;
 
 namespace Host.WebApi.Routes;
@@ -18,5 +21,14 @@ internal static void MapTagRoutes(this IEndpointRouteBuilder api)
             })
             .Produces<GetTags.Result>()
             .ProducesProblem(StatusCodes.Status500InternalServerError);
+
+        group.MapPost("", async ([FromServices] ICommandHandler<AddTag.Command> handler, [FromBody] AddTag.Command command) =>
+            {
+                var result = await handler.HandleAsync(command);
+                return result.ToHttp();
+            })
+            .Produces(StatusCodes.Status204NoContent)
+            .ProducesProblem(StatusCodes.Status400BadRequest)
+            .ProducesProblem(StatusCodes.Status500InternalServerError);
     }
 }
\ No newline at end of file
diff --git a/backend/src/Infrastructure.Data/Extensions/ServiceCollectionExtensions.cs b/backend/src/Infrastructure.Data/Extensions/ServiceCollectionExtensions.cs
index c1ccbbc..244abaa 100644
--- a/backend/src/Infrastructure.Data/Extensions/ServiceCollectionExtensions.cs
+++ b/backend/src/Infrastructure.Data/Extensions/ServiceCollectionExtensions.cs
@@ -1,4 +1,5 @@
 using Catalog.Domain.Products.Repositories;
+using Catalog.Domain.Tags.Repositories;
 using Common.Application.Commands;
 using Common.Application.Queries;
 using Infrastructure.Data.Common;
@@ -18,6 +19,7 @@ public static IServiceCollection AddInfrastructureData(this IServiceCollection s
         services.AddTransient<IQueryProcessor, EfQueryProcessor>();
         
         services.AddTransient<IProductRepository, EfProductRepository>();
+        services.AddTransient<ITagRepository, EfTagRepository>();
 
         return services;
     }
diff --git a/backend/src/Infrastructure.Data/Repositories/EfProductRepository.cs b/backend/src/Infrastructure.Data/Repositories/EfProductRepository.cs
index c4a14d6..f077a88 100644
--- a/backend/src/Infrastructure.Data/Repositories/EfProductRepository.cs
+++ b/backend/src/Infrastructure.Data/Repositories/EfProductRepository.cs
@@ -14,7 +14,7 @@ public Task<List<Product>> GetProductsAsync(List<Guid> ids)
 
     public Task AddAsync(Product product)
     {
-        return context.Set<Product>().AddRangeAsync(product);
+        return context.Set<Product>().AddAsync(product).AsTask();
     }
 
     public void Delete(List<Product> products)
diff --git a/backend/src/Infrastructure.Data/Repositories/EfTagRepository.cs b/backend/src/Infrastructure.Data/Repositories/EfTagRepository.cs
new file mode 100644
index 0000000..6c1798e
--- /dev/null
+++ b/backend/src/Infrastructure.Data/Repositories/EfTagRepository.cs
@@ -0,0 +1,13 @@
+using Catalog.Domain.Tags.Entities;
+using Catalog.Domain.Tags.Repositories;
+using Infrastructure.Data.Contexts;
+
+namespace Infrastructure.Data.Repositories;
+
+internal sealed class EfTagRepository(AppDbContext context) : ITagRepository
+{
+    public Task AddAsync(Tag tag)
+    {
+        return context.Set<Tag>().AddAsync(tag).AsTask();
+    }
+}
\ No newline at end of file
diff --git a/backend/test/Tamaplante.IntegrationTests/Catalog/Tags/Commands/AddTagTests.cs b/backend/test/Tamaplante.IntegrationTests/Catalog/Tags/Commands/AddTagTests.cs
new file mode 100644
index 0000000..aed6f19
--- /dev/null
+++ b/backend/test/Tamaplante.IntegrationTests/Catalog/Tags/Commands/AddTagTests.cs
@@ -0,0 +1,33 @@
+using System.Net;
+using System.Net.Http.Json;
+using Catalog.Application.Tags.Commands;
+using Catalog.Domain.Tags.Entities;
+using FluentAssertions;
+using Microsoft.EntityFrameworkCore;
+using Tamaplante.IntegrationTests.Common;
+
+namespace Tamaplante.IntegrationTests.Catalog.Tags.Commands;
+
+[Collection("IntegrationTests")]
+public sealed class AddTagTest(IntegrationFixture integrationFixture)
+{
+    [Fact]
+    public async Task AddTag_Should_BeSuccessful()
+    {
+        // Arrange
+        await integrationFixture.ResetDatabaseAsync();
+        using var client = integrationFixture.Factory.CreateClient();
+
+        var command = new AddTag.Command(Guid.NewGuid(), "Name");
+
+        // Act
+        var response = await client.PostAsJsonAsync("api/v1/tags", command);
+
+        // Assert
+        response.StatusCode.Should().Be(HttpStatusCode.NoContent);
+
+        await using var dbContext = integrationFixture.CreateDbContext();
+        var tag = await dbContext.Set<Tag>().FirstOrDefaultAsync(x => x.Id == command.Id);
+        tag.Should().NotBeNull();
+    }
+}
\ No newline at end of file
diff --git a/backend/test/Tamaplante.Tests/Catalog/Application/Tags/Validators/AddTagValidatorTests.cs b/backend/test/Tamaplante.Tests/Catalog/Application/Tags/Validators/AddTagValidatorTests.cs
new file mode 100644
index 0000000..3ef99fd
--- /dev/null
+++ b/backend/test/Tamaplante.Tests/Catalog/Application/Tags/Validators/AddTagValidatorTests.cs
@@ -0,0 +1,20 @@
+using Catalog.Application.Tags.Commands;
+using FluentAssertions;
+using FluentValidation.TestHelper;
+
+namespace Tamaplante.Tests.Catalog.Application.Tags.Validators;
+
+public sealed class AddTagValidatorTests
+{
+    private readonly AddTag.Validator _sut = new();
+
+    [Theory]
+    [InlineData("2BE2D805-294B-4EA5-96E0-087431636A0B", "name", true)]
+    [InlineData("2BE2D805-294B-4EA5-96E0-087431636A0B", "", false)]
+    public async Task Should_Fail_When_Invalid_Command(string id, string name, bool valid)
+    {
+        var command = new AddTag.Command(Guid.Parse(id), name);
+        var result = await _sut.TestValidateAsync(command);
+        result.IsValid.Should().Be(valid);
+    }
+}
\ No newline at end of file
diff --git a/frontend/admin/src/api/types/index.ts b/frontend/admin/src/api/types/index.ts
index 920261d..4af60fc 100644
--- a/frontend/admin/src/api/types/index.ts
+++ b/frontend/admin/src/api/types/index.ts
@@ -53,6 +53,11 @@ export interface CatalogTagsQueriesGetTagsResult {
   total: number;
 }
 
+export interface CatalogTagsAddTagCommand {
+  id: string;
+  name: string;
+}
+
 export interface CatalogProductsQueriesGetProductsDto {
   description: string;
   id: string;
@@ -576,3 +581,77 @@ export function useGetApiV1Tags<
 
   return query;
 }
+
+export const postApiV1Tags = (
+  catalogTagsAddTagCommand: BodyType<CatalogTagsAddTagCommand>,
+  options?: SecondParameter<typeof customInstance>,
+) => {
+  return customInstance<void>(
+    {
+      url: `/api/v1/tags`,
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      data: catalogTagsAddTagCommand,
+    },
+    options,
+  );
+};
+
+export const getPostApiV1TagsMutationOptions = <
+  TError = ErrorType<ProblemDetails>,
+  TContext = unknown,
+>(options?: {
+  mutation?: UseMutationOptions<
+    Awaited<ReturnType<typeof postApiV1Tags>>,
+    TError,
+    { data: BodyType<CatalogTagsAddTagCommand> },
+    TContext
+  >;
+  request?: SecondParameter<typeof customInstance>;
+}): UseMutationOptions<
+  Awaited<ReturnType<typeof postApiV1Tags>>,
+  TError,
+  { data: BodyType<CatalogTagsAddTagCommand> },
+  TContext
+> => {
+  const { mutation: mutationOptions, request: requestOptions } = options ?? {};
+
+  const mutationFn: MutationFunction<
+    Awaited<ReturnType<typeof postApiV1Tags>>,
+    { data: BodyType<CatalogTagsAddTagCommand> }
+  > = (props) => {
+    const { data } = props ?? {};
+
+    return postApiV1Tags(data, requestOptions);
+  };
+
+  return { mutationFn, ...mutationOptions };
+};
+
+export type PostApiV1TagsMutationResult = NonNullable<
+  Awaited<ReturnType<typeof postApiV1Tags>>
+>;
+export type PostApiV1TagsMutationBody = BodyType<CatalogTagsAddTagCommand>;
+export type PostApiV1TagsMutationError = ErrorType<ProblemDetails>;
+
+export const usePostApiV1Tags = <
+  TError = ErrorType<ProblemDetails>,
+  TContext = unknown,
+>(options?: {
+  mutation?: UseMutationOptions<
+    Awaited<ReturnType<typeof postApiV1Tags>>,
+    TError,
+    { data: BodyType<CatalogTagsAddTagCommand> },
+    TContext
+  >;
+  request?: SecondParameter<typeof customInstance>;
+}): UseMutationResult<
+  Awaited<ReturnType<typeof postApiV1Tags>>,
+  TError,
+  { data: BodyType<CatalogTagsAddTagCommand> },
+  TContext
+> => {
+  const mutationOptions = getPostApiV1TagsMutationOptions(options);
+
+  return useMutation(mutationOptions);
+};
diff --git a/frontend/admin/src/routes/products/-components/products-list.tsx b/frontend/admin/src/routes/products/-components/products-list.tsx
index 7234b41..b27e095 100644
--- a/frontend/admin/src/routes/products/-components/products-list.tsx
+++ b/frontend/admin/src/routes/products/-components/products-list.tsx
@@ -55,7 +55,14 @@ const ProductsList = () => {
 
   const rows =
     productsQuery.data?.products.map((p) => (
-      <Table.Tr key={p.id}>
+      <Table.Tr
+        key={p.id}
+        bg={
+          selectedRows.includes(p.id)
+            ? "var(--mantine-color-blue-light)"
+            : undefined
+        }
+      >
         <Table.Td>
           <Checkbox
             checked={selectedRows.includes(p.id)}
@@ -113,7 +120,7 @@ const ProductsList = () => {
         <Table>
           <Table.Thead>
             <Table.Tr>
-              <Table.Th></Table.Th>
+              <Table.Th />
               <Table.Th>Name</Table.Th>
               <Table.Th>Description</Table.Th>
               <Table.Th>Price</Table.Th>
diff --git a/frontend/admin/src/routes/tags/-components/add-tag.tsx b/frontend/admin/src/routes/tags/-components/add-tag.tsx
new file mode 100644
index 0000000..cb4c14f
--- /dev/null
+++ b/frontend/admin/src/routes/tags/-components/add-tag.tsx
@@ -0,0 +1,72 @@
+import { useForm } from "@mantine/form";
+import { zodResolver } from "mantine-form-zod-resolver";
+import { usePostApiV1Tags } from "../../../api/types";
+import { z } from "zod";
+import { Button, Flex, Modal, TextInput } from "@mantine/core";
+import { handleProblemDetailsError } from "../../../utils/error-utils.ts";
+
+interface AddTagProps {
+  readonly opened: boolean;
+  readonly onClose: () => void;
+  readonly onSave: () => void;
+}
+
+const schema = z.object({
+  name: z.string().min(1).max(20),
+});
+
+type Schema = z.infer<typeof schema>;
+
+const AddTag = ({ opened, onClose, onSave }: AddTagProps) => {
+  const form = useForm<Schema>({
+    mode: "uncontrolled",
+    initialValues: {
+      name: "",
+    },
+    validate: zodResolver(schema),
+  });
+
+  const { mutateAsync } = usePostApiV1Tags({
+    mutation: {
+      onError: handleProblemDetailsError,
+      onSuccess: () => {
+        form.reset();
+        onSave();
+        onClose();
+      },
+    },
+  });
+
+  const handleSubmit = form.onSubmit(async (values) => {
+    await mutateAsync({
+      data: {
+        ...values,
+        id: crypto.randomUUID(),
+      },
+    });
+  });
+
+  return (
+    <Modal opened={opened} onClose={onClose} title={"Add Tag"}>
+      <form onSubmit={handleSubmit}>
+        <Flex direction="column" align="flex-start" gap="sm">
+          <TextInput
+            {...form.getInputProps("name")}
+            key={form.key("name")}
+            label="Name"
+            withAsterisk
+            placeholder="Choose a name"
+          />
+          <Flex gap="xs" justify="flex-end">
+            <Button type="submit">Add</Button>
+            <Button type="button" variant="default" onClick={onClose}>
+              Cancel
+            </Button>
+          </Flex>
+        </Flex>
+      </form>
+    </Modal>
+  );
+};
+
+export default AddTag;
diff --git a/frontend/admin/src/routes/tags/-components/tags-list.tsx b/frontend/admin/src/routes/tags/-components/tags-list.tsx
index f8e264f..fd2672f 100644
--- a/frontend/admin/src/routes/tags/-components/tags-list.tsx
+++ b/frontend/admin/src/routes/tags/-components/tags-list.tsx
@@ -1,12 +1,15 @@
 import { useGetApiV1Tags } from "../../../api/types";
-import { Checkbox, Flex, Table } from "@mantine/core";
+import { Button, Checkbox, Flex, Table } from "@mantine/core";
 import TablePagination from "../../../components/table-pagination.tsx";
 import { useEffect, useState } from "react";
+import AddTag from "./add-tag.tsx";
+import { useDisclosure } from "@mantine/hooks";
 
 const TagsList = () => {
   const [pageIndex, setPageIndex] = useState(0);
   const [pageSize, setPageSize] = useState(10);
   const [selectedRows, setSelectedRows] = useState<string[]>([]);
+  const [addOpened, { open: openAdd, close: closeAdd }] = useDisclosure(false);
 
   const tagsQuery = useGetApiV1Tags({
     pageIndex,
@@ -18,7 +21,14 @@ const TagsList = () => {
 
   const rows =
     tagsQuery.data?.tags.map((t) => (
-      <Table.Tr key={t.id}>
+      <Table.Tr
+        key={t.id}
+        bg={
+          selectedRows.includes(t.id)
+            ? "var(--mantine-color-blue-light)"
+            : undefined
+        }
+      >
         <Table.Td>
           <Checkbox
             checked={selectedRows.includes(t.id)}
@@ -36,24 +46,36 @@ const TagsList = () => {
     )) ?? [];
 
   return (
-    <Flex direction="column" gap="xs">
-      <Table>
-        <Table.Thead>
-          <Table.Tr>
-            <Table.Th></Table.Th>
-            <Table.Th>Name</Table.Th>
-          </Table.Tr>
-        </Table.Thead>
-        <Table.Tbody>{rows}</Table.Tbody>
-      </Table>
-      <TablePagination
-        total={tagsQuery.data?.total ?? 0}
-        pageIndex={pageIndex}
-        setPageIndex={setPageIndex}
-        pageSize={pageSize}
-        sePageSize={setPageSize}
+    <>
+      <AddTag
+        opened={addOpened}
+        onSave={tagsQuery.refetch}
+        onClose={closeAdd}
       />
-    </Flex>
+      <Flex direction="column" gap="xs">
+        <Flex gap="xs">
+          <Button color="green" onClick={openAdd}>
+            ADD
+          </Button>
+        </Flex>
+        <Table>
+          <Table.Thead>
+            <Table.Tr>
+              <Table.Th />
+              <Table.Th>Name</Table.Th>
+            </Table.Tr>
+          </Table.Thead>
+          <Table.Tbody>{rows}</Table.Tbody>
+        </Table>
+        <TablePagination
+          total={tagsQuery.data?.total ?? 0}
+          pageIndex={pageIndex}
+          setPageIndex={setPageIndex}
+          pageSize={pageSize}
+          sePageSize={setPageSize}
+        />
+      </Flex>
+    </>
   );
 };