---
title: Round totals for currencies
slug: commerce-connect-14/docs/rounding-totals-for-currencies
docTags: 
createdAt: 2026-07-23T10:25:34.040Z
---

Rounding is complex because different currencies use different numbers of decimal places.

The following methods return a value with the correct number of decimals, which is determined by the input currency.

- `Currency.Round()`
- `Currency.Percentage()`
- `Money.Round()`

Do not use `Math.Round()` for rounding. For example, do *not* use the following code.

```csharp
var currentCurrency = “JPY” 
    Money itemPrice = new Money(Math.Round(lineItem.ListPrice, 2), currentCurrency);
```

If you currently use `Math.Round`, replace it like this.

```csharp
var currentCurrency = “JPY”
    Money itemPrice = new Money(lineItem.ListPrice, currentCurrency).Round();
```

## Calculate and round an order total

After rounding, use the rounded value for all further totals. For example, here is the correct way to add a number.

```csharp
var billingCurrency = order.Currency;
    foreach (var item in order.GetAllLineItems())
      {
        var costWithoutDiscount = billingCurrency.Round(item.PlacedPrice * item.Quantity);
        item.Properties["costWithoutDiscount"] = costWithoutDiscount;
      }
```

## Calculate taxes

To get an order‘s correctly rounded tax amount, do not use the tax amount of individual items. Instead, follow this example.

```csharp
var billingCurrency = order.Currency;
    var saleTaxesAmount = taxes
      .Where(x => x.TaxType == TaxType.SalesTax)
      .Sum(x => billingCurrency.Percentage(itemPriceWithoutTax, x.Percentage));
```

In the above code, `saleTaxesAmount` is returned with a rounded value.

:::hint{type="info"}
**Note**
Do not use `billingCurrency.Percentage(itemPriceWithoutTax, x.Percentage)` in other situations
:::