/// <summary>
/// Gets tax rate
/// </summary>
/// <param name="calculateTaxRequest">Tax calculation request</param>
/// <returns>Tax</returns>
public CalculateTaxResult GetTaxRate(CalculateTaxRequest calculateTaxRequest)
{
var result = new CalculateTaxResult();
//choose the tax rate calculation method
if (!_countryStateZipSettings.CountryStateZipEnabled)
{
//the tax rate calculation by fixed rate
result = new CalculateTaxResult
{
TaxRate = _settingService.GetSettingByKey <decimal>(string.Format("Tax.TaxProvider.FixedOrByCountryStateZip.TaxCategoryId{0}", calculateTaxRequest.TaxCategoryId))
};
}
else
{
//the tax rate calculation by country & state & zip
if (calculateTaxRequest.Address == null)
{
result.Errors.Add("Address is not set");
return(result);
}
//first, load all tax rate records (cached) - loaded only once
var allTaxRates = GetAllTaxRates()
.Select(x => new TaxRateForCaching
{
Id = x.Id,
StoreId = x.StoreId,
TaxCategoryId = x.TaxCategoryId,
CountryId = x.CountryId,
StateProvinceId = x.StateProvinceId,
Zip = x.Zip,
Percentage = x.Percentage
}
)
.ToList();
var storeId = _storeContext.CurrentStore.Id;
var taxCategoryId = calculateTaxRequest.TaxCategoryId;
var countryId = calculateTaxRequest.Address.Country != null ? calculateTaxRequest.Address.Country.Id : 0;
var stateProvinceId = calculateTaxRequest.Address.StateProvince != null
? calculateTaxRequest.Address.StateProvince.Id
: 0;
var zip = calculateTaxRequest.Address.ZipPostalCode;
if (zip == null)
{
zip = string.Empty;
}
zip = zip.Trim();
var existingRates = allTaxRates.Where(taxRate => taxRate.CountryId == countryId && taxRate.TaxCategoryId == taxCategoryId).ToList();
//filter by store
//first, find by a store ID
var matchedByStore = existingRates.Where(taxRate => storeId == taxRate.StoreId).ToList();
//not found? use the default ones (ID == 0)
if (!matchedByStore.Any())
{
matchedByStore.AddRange(existingRates.Where(taxRate => taxRate.StoreId == 0));
}
//filter by state/province
//first, find by a state ID
var matchedByStateProvince = matchedByStore.Where(taxRate => stateProvinceId == taxRate.StateProvinceId).ToList();
//not found? use the default ones (ID == 0)
if (!matchedByStateProvince.Any())
{
matchedByStateProvince.AddRange(matchedByStore.Where(taxRate => taxRate.StateProvinceId == 0));
}
//filter by zip
var matchedByZip = matchedByStateProvince.Where(taxRate => (string.IsNullOrEmpty(zip) && string.IsNullOrEmpty(taxRate.Zip)) || zip.Equals(taxRate.Zip, StringComparison.InvariantCultureIgnoreCase)).ToList();
if (!matchedByZip.Any())
{
matchedByZip.AddRange(matchedByStateProvince.Where(taxRate => string.IsNullOrWhiteSpace(taxRate.Zip)));
}
if (matchedByZip.Any())
{
result.TaxRate = matchedByZip[0].Percentage;
}
}
return(result);
}
/// <summary>
/// Create request for tax calculation
/// </summary>
/// <param name="product">Product</param>
/// <param name="taxCategoryId">Tax category identifier</param>
/// <param name="customer">Customer</param>
/// <param name="price">Price</param>
/// <returns>Package for tax calculation</returns>
protected virtual CalculateTaxRequest CreateCalculateTaxRequest(Product product, int taxCategoryId, Customer customer, decimal price)
{
if (customer == null)
{
throw new ArgumentNullException("customer");
}
var calculateTaxRequest = new CalculateTaxRequest
{
Customer = customer,
Product = product,
Price = price,
TaxCategoryId = taxCategoryId > 0 ? taxCategoryId : (product != null ? product.TaxCategoryId : 0)
};
var basedOn = _taxSettings.TaxBasedOn;
//new EU VAT rules starting January 1st 2015
//find more info at http://ec.europa.eu/taxation_customs/taxation/vat/how_vat_works/telecom/index_en.htm#new_rules
var overridenBasedOn = _taxSettings.EuVatEnabled && //EU VAT enabled?
product != null && product.IsTelecommunicationsOrBroadcastingOrElectronicServices && //telecommunications, broadcasting and electronic services?
DateTime.UtcNow > new DateTime(2015, 1, 1, 0, 0, 0, DateTimeKind.Utc) && //January 1st 2015 passed?
IsEuConsumer(customer); //Europe Union consumer?
if (overridenBasedOn)
{
//We must charge VAT in the EU country where the customer belongs (not where the business is based)
basedOn = TaxBasedOn.BillingAddress;
}
//tax is based on pickup point address
if (!overridenBasedOn && _taxSettings.TaxBasedOnPickupPointAddress && _shippingSettings.AllowPickUpInStore)
{
var pickupPoint = customer.GetAttribute <PickupPoint>(SystemCustomerAttributeNames.SelectedPickupPoint, _genericAttributeService, _storeContext.CurrentStore.Id);
if (pickupPoint != null)
{
var country = _countryService.GetCountryByTwoLetterIsoCode(pickupPoint.CountryCode);
var state = _stateProvinceService.GetStateProvinceByAbbreviation(pickupPoint.StateAbbreviation);
calculateTaxRequest.Address = new Address
{
Address1 = pickupPoint.Address,
City = pickupPoint.City,
Country = country,
CountryId = country.Return(c => c.Id, 0),
StateProvince = state,
StateProvinceId = state.Return(sp => sp.Id, 0),
ZipPostalCode = pickupPoint.ZipPostalCode,
CreatedOnUtc = DateTime.UtcNow
};
return(calculateTaxRequest);
}
}
if (basedOn == TaxBasedOn.BillingAddress && customer.BillingAddress == null ||
basedOn == TaxBasedOn.ShippingAddress && customer.ShippingAddress == null)
{
basedOn = TaxBasedOn.DefaultAddress;
}
switch (basedOn)
{
case TaxBasedOn.BillingAddress:
calculateTaxRequest.Address = customer.BillingAddress;
break;
case TaxBasedOn.ShippingAddress:
calculateTaxRequest.Address = customer.ShippingAddress;
break;
case TaxBasedOn.DefaultAddress:
default:
calculateTaxRequest.Address = _addressService.GetAddressById(_taxSettings.DefaultTaxAddressId);
break;
}
return(calculateTaxRequest);
}