diff --git a/internal/handler/space.go b/internal/handler/space.go
index f5ed049..c81a196 100644
--- a/internal/handler/space.go
+++ b/internal/handler/space.go
@@ -302,6 +302,119 @@ func (h *spaceHandler) SpaceCreateBillPage(w http.ResponseWriter, r *http.Reques
 	}))
 }
 
+func (h *spaceHandler) SpaceCreateDepositPage(w http.ResponseWriter, r *http.Request) {
+	spaceID := r.PathValue("spaceID")
+	accountID := r.PathValue("accountID")
+
+	account, err := h.accountService.GetAccount(accountID)
+	if err != nil {
+		slog.Error("failed to load account", "error", err, "account_id", accountID)
+		ui.Render(w, r, pages.NotFound())
+		return
+	}
+	if account.SpaceID != spaceID {
+		ui.Render(w, r, pages.NotFound())
+		return
+	}
+
+	ui.Render(w, r, pages.SpaceCreateDepositPage(pages.SpaceCreateDepositPageProps{
+		SpaceID:     spaceID,
+		AccountID:   accountID,
+		AccountName: account.Name,
+		Form: forms.CreateDepositProps{
+			SpaceID:   spaceID,
+			AccountID: accountID,
+			Date:      time.Now().Format("2006-01-02"),
+		},
+	}))
+}
+
+func (h *spaceHandler) HandleCreateDeposit(w http.ResponseWriter, r *http.Request) {
+	spaceID := r.PathValue("spaceID")
+	accountID := r.PathValue("accountID")
+
+	titleInput := strings.TrimSpace(r.FormValue("title"))
+	amountInput := strings.TrimSpace(r.FormValue("amount"))
+	dateInput := strings.TrimSpace(r.FormValue("date"))
+	descriptionInput := strings.TrimSpace(r.FormValue("description"))
+
+	formProps := forms.CreateDepositProps{
+		SpaceID:     spaceID,
+		AccountID:   accountID,
+		Title:       titleInput,
+		Amount:      amountInput,
+		Date:        dateInput,
+		Description: descriptionInput,
+	}
+
+	hasErr := false
+	if titleInput == "" {
+		formProps.TitleErr = "Title is required."
+		hasErr = true
+	}
+
+	var amount decimal.Decimal
+	if amountInput == "" {
+		formProps.AmountErr = "Amount is required."
+		hasErr = true
+	} else {
+		amt, err := decimal.NewFromString(amountInput)
+		if err != nil {
+			formProps.AmountErr = "Enter a valid amount (e.g. 12.34)."
+			hasErr = true
+		} else if !amt.IsPositive() {
+			formProps.AmountErr = "Amount must be greater than zero."
+			hasErr = true
+		} else if amt.Exponent() < -2 {
+			formProps.AmountErr = "Amount can have at most 2 decimal places."
+			hasErr = true
+		} else {
+			amount = amt
+		}
+	}
+
+	var occurredAt time.Time
+	if dateInput == "" {
+		formProps.DateErr = "Date is required."
+		hasErr = true
+	} else {
+		parsed, err := time.Parse("2006-01-02", dateInput)
+		if err != nil {
+			formProps.DateErr = "Enter a valid date."
+			hasErr = true
+		} else {
+			occurredAt = parsed
+		}
+	}
+
+	if hasErr {
+		ui.Render(w, r, forms.CreateDeposit(formProps))
+		return
+	}
+
+	_, err := h.transactionService.Deposit(service.DepositInput{
+		AccountID:   accountID,
+		Title:       titleInput,
+		Amount:      amount,
+		OccurredAt:  occurredAt,
+		Description: descriptionInput,
+	})
+	if err != nil {
+		slog.Error("failed to create deposit", "error", err, "account_id", accountID)
+		formProps.GeneralErr = "Something went wrong. Please try again."
+		ui.Render(w, r, forms.CreateDeposit(formProps))
+		return
+	}
+
+	redirectTo := routeurl.URL(
+		"page.app.spaces.space.accounts.account.overview",
+		"spaceID", spaceID,
+		"accountID", accountID,
+	)
+	w.Header().Set("HX-Redirect", redirectTo)
+	w.WriteHeader(http.StatusOK)
+}
+
 func (h *spaceHandler) HandleCreateBill(w http.ResponseWriter, r *http.Request) {
 	spaceID := r.PathValue("spaceID")
 	accountID := r.PathValue("accountID")
diff --git a/internal/repository/transaction.go b/internal/repository/transaction.go
index e8bdfe6..6d50f1e 100644
--- a/internal/repository/transaction.go
+++ b/internal/repository/transaction.go
@@ -10,6 +10,7 @@ import (
 
 type TransactionRepository interface {
 	CreateBillAtomic(t *model.Transaction, newBalance decimal.Decimal, categoryID *string) error
+	CreateDepositAtomic(t *model.Transaction, newBalance decimal.Decimal) error
 	ListByAccount(accountID string, limit, offset int) ([]*model.Transaction, error)
 	CountByAccount(accountID string) (int, error)
 }
@@ -54,6 +55,30 @@ func (r *transactionRepository) CreateBillAtomic(t *model.Transaction, newBalanc
 	})
 }
 
+func (r *transactionRepository) CreateDepositAtomic(t *model.Transaction, newBalance decimal.Decimal) error {
+	return WithTx(r.db, func(tx *sqlx.Tx) error {
+		insertTxn := `
+			INSERT INTO transactions
+				(id, value, type, account_id, title, description, occurred_at, created_at, updated_at)
+			VALUES
+				($1, $2, $3, $4, $5, $6, $7, $8, $9);
+		`
+		if _, err := tx.Exec(
+			insertTxn,
+			t.ID, t.Value, t.Type, t.AccountID, t.Title, t.Description,
+			t.OccurredAt, t.CreatedAt, t.UpdatedAt,
+		); err != nil {
+			return err
+		}
+
+		updateBalance := `UPDATE accounts SET balance = $1, updated_at = $2 WHERE id = $3;`
+		if _, err := tx.Exec(updateBalance, newBalance, time.Now(), t.AccountID); err != nil {
+			return err
+		}
+		return nil
+	})
+}
+
 func (r *transactionRepository) ListByAccount(accountID string, limit, offset int) ([]*model.Transaction, error) {
 	query := `
 		SELECT id, value, type, account_id, title, description, occurred_at, created_at, updated_at
diff --git a/internal/routes/routes.go b/internal/routes/routes.go
index ae86ccc..8c36e82 100644
--- a/internal/routes/routes.go
+++ b/internal/routes/routes.go
@@ -98,6 +98,8 @@ func SetupRoutes(a *app.App) http.Handler {
 					g.Get("/transactions", spaceH.SpaceAccountTransactionsPage).Name("page.app.spaces.space.accounts.account.transactions")
 					g.Get("/bills/create", spaceH.SpaceCreateBillPage).Name("page.app.spaces.space.accounts.account.bills.create")
 					g.Post("/bills/create", spaceH.HandleCreateBill).Name("action.app.spaces.space.accounts.account.bills.create")
+					g.Get("/deposits/create", spaceH.SpaceCreateDepositPage).Name("page.app.spaces.space.accounts.account.deposits.create")
+					g.Post("/deposits/create", spaceH.HandleCreateDeposit).Name("action.app.spaces.space.accounts.account.deposits.create")
 				})
 			})
 		})
diff --git a/internal/service/transaction.go b/internal/service/transaction.go
index fd2caab..0083f58 100644
--- a/internal/service/transaction.go
+++ b/internal/service/transaction.go
@@ -89,6 +89,61 @@ func (s *TransactionService) PayBill(input PayBillInput) (*model.Transaction, er
 	return txn, nil
 }
 
+type DepositInput struct {
+	AccountID   string
+	Title       string
+	Amount      decimal.Decimal
+	OccurredAt  time.Time
+	Description string
+}
+
+func (s *TransactionService) Deposit(input DepositInput) (*model.Transaction, error) {
+	title := strings.TrimSpace(input.Title)
+	if title == "" {
+		return nil, fmt.Errorf("title is required")
+	}
+	if input.AccountID == "" {
+		return nil, fmt.Errorf("account id is required")
+	}
+	if !input.Amount.IsPositive() {
+		return nil, fmt.Errorf("amount must be greater than zero")
+	}
+	if input.OccurredAt.IsZero() {
+		return nil, fmt.Errorf("date is required")
+	}
+
+	account, err := s.accountService.GetAccount(input.AccountID)
+	if err != nil {
+		return nil, fmt.Errorf("failed to load account: %w", err)
+	}
+
+	newBalance := account.Balance.Add(input.Amount)
+
+	now := time.Now()
+	var description *string
+	if d := strings.TrimSpace(input.Description); d != "" {
+		description = &d
+	}
+
+	txn := &model.Transaction{
+		ID:          uuid.NewString(),
+		Value:       input.Amount,
+		Type:        model.TransactionTypeDeposit,
+		AccountID:   input.AccountID,
+		Title:       title,
+		Description: description,
+		OccurredAt:  input.OccurredAt,
+		CreatedAt:   now,
+		UpdatedAt:   now,
+	}
+
+	if err := s.transactionRepo.CreateDepositAtomic(txn, newBalance); err != nil {
+		return nil, fmt.Errorf("failed to create deposit transaction: %w", err)
+	}
+
+	return txn, nil
+}
+
 func (s *TransactionService) ListByAccount(accountID string, limit, offset int) ([]*model.Transaction, error) {
 	if limit <= 0 {
 		limit = 25
diff --git a/internal/ui/forms/create_deposit.templ b/internal/ui/forms/create_deposit.templ
new file mode 100644
index 0000000..49a53f5
--- /dev/null
+++ b/internal/ui/forms/create_deposit.templ
@@ -0,0 +1,134 @@
+package forms
+
+import "git.juancwu.dev/juancwu/budgit/internal/routeurl"
+import "git.juancwu.dev/juancwu/budgit/internal/ui/components/button"
+import "git.juancwu.dev/juancwu/budgit/internal/ui/components/card"
+import "git.juancwu.dev/juancwu/budgit/internal/ui/components/form"
+import "git.juancwu.dev/juancwu/budgit/internal/ui/components/input"
+import "git.juancwu.dev/juancwu/budgit/internal/ui/components/textarea"
+
+type CreateDepositProps struct {
+	SpaceID   string
+	AccountID string
+
+	Title       string
+	Amount      string
+	Date        string
+	Description string
+
+	TitleErr   string
+	AmountErr  string
+	DateErr    string
+	GeneralErr string
+}
+
+templ CreateDeposit(props CreateDepositProps) {
+	<form hx-post={ routeurl.URL("action.app.spaces.space.accounts.account.deposits.create", "spaceID", props.SpaceID, "accountID", props.AccountID) }>
+		@card.Card(card.Props{Class: "rounded-sm"}) {
+			@card.Content(card.ContentProps{Class: "p-4 space-y-4"}) {
+				if props.GeneralErr != "" {
+					@form.Message(form.MessageProps{Variant: form.MessageVariantError}) {
+						{ props.GeneralErr }
+					}
+				}
+				@form.Item() {
+					@form.Label(form.LabelProps{For: "title"}) {
+						Title
+					}
+					@input.Input(input.Props{
+						ID:          "title",
+						Name:        "title",
+						Type:        input.TypeText,
+						Placeholder: "e.g. Paycheck",
+						Class:       "rounded-sm",
+						Value:       props.Title,
+						HasError:    props.TitleErr != "",
+						Required:    true,
+						Attributes: templ.Attributes{
+							"autocomplete": "off",
+							"autofocus":    "",
+						},
+					})
+					if props.TitleErr != "" {
+						@form.Message(form.MessageProps{Variant: form.MessageVariantError}) {
+							{ props.TitleErr }
+						}
+					}
+				}
+				<div class="grid grid-cols-1 md:grid-cols-2 gap-4">
+					@form.Item() {
+						@form.Label(form.LabelProps{For: "amount"}) {
+							Amount
+						}
+						@input.Input(input.Props{
+							ID:          "amount",
+							Name:        "amount",
+							Type:        input.TypeNumber,
+							Placeholder: "0.00",
+							Class:       "rounded-sm",
+							Value:       props.Amount,
+							HasError:    props.AmountErr != "",
+							Required:    true,
+							Attributes: templ.Attributes{
+								"step":         "0.01",
+								"min":          "0",
+								"inputmode":    "decimal",
+								"autocomplete": "off",
+							},
+						})
+						if props.AmountErr != "" {
+							@form.Message(form.MessageProps{Variant: form.MessageVariantError}) {
+								{ props.AmountErr }
+							}
+						}
+					}
+					@form.Item() {
+						@form.Label(form.LabelProps{For: "date"}) {
+							Date
+						}
+						@input.Input(input.Props{
+							ID:       "date",
+							Name:     "date",
+							Type:     input.TypeDate,
+							Class:    "rounded-sm",
+							Value:    props.Date,
+							HasError: props.DateErr != "",
+							Required: true,
+						})
+						if props.DateErr != "" {
+							@form.Message(form.MessageProps{Variant: form.MessageVariantError}) {
+								{ props.DateErr }
+							}
+						}
+					}
+				</div>
+				@form.Item() {
+					@form.Label(form.LabelProps{For: "description"}) {
+						Description
+					}
+					@textarea.Textarea(textarea.Props{
+						ID:          "description",
+						Name:        "description",
+						Placeholder: "Anything extra worth remembering",
+						Rows:        3,
+						Value:       props.Description,
+					})
+					@form.Description() {
+						Optional.
+					}
+				}
+			}
+			@card.Footer(card.FooterProps{Class: "flex justify-end gap-2"}) {
+				@button.Button(button.Props{
+					Variant: button.VariantGhost,
+					Href:    routeurl.URL("page.app.spaces.space.accounts.account.overview", "spaceID", props.SpaceID, "accountID", props.AccountID),
+				}) {
+					Cancel
+				}
+				@button.Button(button.Props{Type: button.TypeSubmit}) {
+					Deposit
+				}
+			}
+		}
+	</form>
+}
diff --git a/internal/ui/pages/space_account.templ b/internal/ui/pages/space_account.templ
index 0fa3d6e..feaf30c 100644
--- a/internal/ui/pages/space_account.templ
+++ b/internal/ui/pages/space_account.templ
@@ -61,6 +61,7 @@ templ SpaceAccountPage(props SpaceAccountPageProps) {
 						@button.Button(button.Props{
 							Class:   "w-full flex gap-2 md:gap-4 items-center",
 							Variant: button.VariantSecondary,
+							Href:    routeurl.URL("page.app.spaces.space.accounts.account.deposits.create", "spaceID", props.SpaceID, "accountID", props.AccountID),
 						}) {
 							Deposit Funds
 							@icon.BanknoteArrowDown()
diff --git a/internal/ui/pages/space_account_transactions.templ b/internal/ui/pages/space_account_transactions.templ
index adcda0f..5489f6b 100644
--- a/internal/ui/pages/space_account_transactions.templ
+++ b/internal/ui/pages/space_account_transactions.templ
@@ -42,6 +42,7 @@ templ SpaceAccountTransactionsPage(props SpaceAccountTransactionsPageProps) {
 					}
 					@button.Button(button.Props{
 						Variant: button.VariantSecondary,
+						Href:    routeurl.URL("page.app.spaces.space.accounts.account.deposits.create", "spaceID", props.SpaceID, "accountID", props.AccountID),
 						Class:   "flex gap-2 items-center",
 					}) {
 						@icon.BanknoteArrowDown()
diff --git a/internal/ui/pages/space_create_deposit.templ b/internal/ui/pages/space_create_deposit.templ
index a4d8ce0..24eb76c 100644
--- a/internal/ui/pages/space_create_deposit.templ
+++ b/internal/ui/pages/space_create_deposit.templ
@@ -1,4 +1,25 @@
 package pages
 
-templ SpaceCreateDeposit() {
+import "git.juancwu.dev/juancwu/budgit/internal/ui/forms"
+import "git.juancwu.dev/juancwu/budgit/internal/ui/layouts"
+
+type SpaceCreateDepositPageProps struct {
+	SpaceID     string
+	AccountID   string
+	AccountName string
+	Form        forms.CreateDepositProps
+}
+
+templ SpaceCreateDepositPage(props SpaceCreateDepositPageProps) {
+	@layouts.App("Deposit Funds", spaceOverviewSidebarContent(), spaceSpecificSidebarContent(props.SpaceID)) {
+		<div class="container max-w-3xl px-6 py-8 mx-auto space-y-8">
+			<div>
+				<h1 class="text-3xl font-bold">Deposit Funds</h1>
+				<p class="text-muted-foreground mt-2">
+					Record a deposit into { props.AccountName }.
+				</p>
+			</div>
+			@forms.CreateDeposit(props.Form)
+		</div>
+	}
 }