diff --git a/ynab/accounts.go b/ynab/accounts.go
index 67aacd9..676fe7e 100644
--- a/ynab/accounts.go
+++ b/ynab/accounts.go
@@ -64,22 +64,11 @@ func (c *Client) SetAccountBalance(accountID string, balance int) error {
 		return nil // If balanceDelta is 0 do not create a transaction i.e. market is closed today
 	}
 
-	if ynabTransactionID == "" {
-		// there is no transaction - so create a new one
-		err = c.createTodayYNABCapitalGainsTransaction(accountID, balanceDelta)
-		if err != nil {
-			return fmt.Errorf("failed to create YNAB capital gains transaction for account ID '%s': %v", accountID, err)
-		}
-		log.Printf("Creating new capital gains transaction for YNAB account '%s' for amount: %d", accountID, balanceDelta)
-
-	} else {
-		// there is an existing transaction - so update the existing one
-
-		err = c.updateTodayYNABCapitalGainsTransaction(accountID, ynabTransactionID, balanceDelta)
-		if err != nil {
-			return fmt.Errorf("failed to update YNAB capital gains transaction for account ID '%s': %v", accountID, err)
-		}
-		log.Printf("Updating existing capital gains transaction for YNAB account '%s' for amount: %d", accountID, balanceDelta)
+	err = c.updateTodayYNABCapitalGainsTransaction(accountID, ynabTransactionID, balanceDelta)
+	if err != nil {
+		return fmt.Errorf("failed to update YNAB capital gains transaction for account ID '%s': %v", accountID, err)
 	}
+	log.Printf("Capital gains transaction for YNAB account '%s' amount is: %d", accountID, balanceDelta)
+
 	return nil
 }
diff --git a/ynab/transactions.go b/ynab/transactions.go
index 7d8b6d3..067f014 100644
--- a/ynab/transactions.go
+++ b/ynab/transactions.go
@@ -7,8 +7,7 @@ import (
 )
 
 // Reference: https://api.ynab.com/v1#/Transactions/
-
-type BaseTransaction struct {
+type Transaction struct {
 	Type                  string      `json:"type,omitempty"`
 	ParentTransactionID   interface{} `json:"parent_transaction_id,omitempty"`
 	ID                    string      `json:"id,omitempty"`
@@ -31,32 +30,32 @@ type BaseTransaction struct {
 	Deleted               bool        `json:"deleted,omitempty"`
 }
 
+// Used for single transaction requests
+type TransactionRequest struct {
+	Transaction Transaction `json:"transaction,omitempty"`
+}
+
 // Used for single transaction responses
-type Transaction struct {
+type TransactionResponse struct {
 	Data struct {
-		TransactionIDs  []string        `json:"transaction_ids,omitempty"`
-		Transaction     BaseTransaction `json:"transaction"`
-		ServerKnowledge int             `json:"server_knowledge,omitempty"`
+		TransactionIDs  []string    `json:"transaction_ids,omitempty"`
+		Transaction     Transaction `json:"transaction"`
+		ServerKnowledge int         `json:"server_knowledge,omitempty"`
 	}
 }
 
-// Used for single transaction requests
-type TransactionRequest struct {
-	Transaction BaseTransaction `json:"transaction,omitempty"`
-}
-
 // Used for multiple transaction requests / responses
-type Transactions struct {
+type TransactionsResponse struct {
 	Data struct {
-		Transactions    []BaseTransaction `json:"transactions"`
-		ServerKnowledge int               `json:"server_knowledge"`
+		Transactions    []Transaction `json:"transactions"`
+		ServerKnowledge int           `json:"server_knowledge"`
 	} `json:"data"`
 }
 
 // Accepts a YNAB account ID and timestamp and returns all transactions in that account
 // since the date provided
-func (c *Client) GetAccountTransactions(accountID string, sinceDate time.Time) (*Transactions, error) {
-	response := Transactions{}
+func (c *Client) GetAccountTransactions(accountID string, sinceDate time.Time) (*TransactionsResponse, error) {
+	response := TransactionsResponse{}
 	urlQuery := url.Values{}
 	urlQuery.Add("since_date", sinceDate.Format("2006-01-02"))
 
@@ -84,43 +83,30 @@ func (c *Client) getTodayYnabCapitalGainsTransaction(accountID string) (string,
 	return "", 0, nil
 }
 
-// Accepts a YNAB account ID and transaction amount and creates a new YNAB transaction
-func (c *Client) createTodayYNABCapitalGainsTransaction(accountID string, amount int) error {
-	transaction := TransactionRequest{}
-	transaction.Transaction.AccountID = accountID
-	transaction.Transaction.Amount = amount
-	transaction.Transaction.Date = time.Now().In(c.loc).Format("2006-01-02")
-	transaction.Transaction.Cleared = "cleared"
-	transaction.Transaction.Approved = true
-	transaction.Transaction.PayeeName = "Capital Gains or Losses"
-	transaction.Transaction.Memo = fmt.Sprintf("Quoted at: %s", time.Now().In(c.loc).Format("2006-01-02 15:04:05"))
-
-	response := &Transaction{}
-
-	err := c.post("/transactions", response, transaction)
-	if err != nil {
-		return fmt.Errorf("failed to post transaction: %v", err)
-	}
-	return nil
-}
-
 // Accepts a YNAB account ID, transaction ID and transaction amount and updates the YNAB transaction with the matching ID
+// If transaction ID is blank, a new transaction is created for the amount specified
 func (c *Client) updateTodayYNABCapitalGainsTransaction(accountID string, transactionID string, amount int) error {
-	transaction := TransactionRequest{}
-	transaction.Transaction.AccountID = accountID
-	transaction.Transaction.ID = transactionID
-	transaction.Transaction.Amount = amount
-	transaction.Transaction.Date = time.Now().In(c.loc).Format("2006-01-02")
-	transaction.Transaction.Cleared = "cleared"
-	transaction.Transaction.Approved = true
-	transaction.Transaction.PayeeName = "Capital Gains or Losses"
-	transaction.Transaction.Memo = fmt.Sprintf("Quoted at: %s", time.Now().In(c.loc).Format("2006-01-02 15:04:05"))
+	request := TransactionRequest{
+		Transaction: Transaction{
+			AccountID: accountID,
+			Amount:    amount,
+			Date:      time.Now().In(c.loc).Format("2006-01-02"),
+			Cleared:   "cleared",
+			Approved:  true,
+			PayeeName: "Capital Gains or Losses",
+			Memo:      fmt.Sprintf("Quoted at: %s", time.Now().In(c.loc).Format("2006-01-02 15:04:05")),
+		},
+	}
+	response := &TransactionResponse{}
+	var err error
+	if transactionID == "" { // create transaction
+		err = c.post("/transactions", response, request)
+	} else { // update existing transaction
+		err = c.put(fmt.Sprintf("/transactions/%s", transactionID), response, request)
+	}
 
-	response := &Transaction{}
-
-	err := c.put(fmt.Sprintf("/transactions/%s", transactionID), response, transaction)
 	if err != nil {
-		return fmt.Errorf("failed to put transaction: %v", err)
+		return fmt.Errorf("request failed: %v", err)
 	}
 	return nil
 }