es cosa de leerlo en Amazon en todo caso:
Calculating Fees
When you order products
from AmazonGlobal for shipment to destinations outside of Japan, an estimate of the Import Fees ("Import Fees Deposit") will be levied on those items in your order. With your authorization, these funds are used by the carrier or another agent to pay the Import Fees on your behalf (or the recipient's behalf) to the appropriate authorities of the destination. The payment of Import Fees is the responsibility of the importer and is levied based on the laws of the destination into which the products are being shipped.
The Import Fees Deposit is an estimation of the taxes and duties that may apply. It can vary depending on the selected shipping method. The estimated Import Fees Deposit may not represent the actual amount paid to customs authorities. Customs regulations and tax rates applicable to certain goods may change between the date the taxes and duties were estimated and the date of import into the destination country. The duty or tax rate is often determined by the classification of a good, which varies by destination.
You won't be charged additional fees if the actual Import Fees exceed the Import Fees Deposit we estimated.
Duties and taxes are calculated according to the shipping destination's customs regulations. Typically, this calculation is based on our product price and shipping, before any promotions. This allows destination country customs authorities to obtain the accurate import duties and taxes owed to them based on the actual value of the goods. For more information, go to
About Customs, Duties & Taxes.
Import Fees Deposit Refunds
If the actual Import Fees are less than the Import Fees Deposit collected by us on your behalf, you'll automatically be refunded the difference to the payment method you used for the order. You'll receive a notification e-mail confirming the amount of the refund. The refunds will be processed as and when we receive carrier invoices confirming the actual Import Fees. If carrier invoices are not received by 180 days from the ship date, you will receive a refund for the full amount of Import Fees Deposit paid.
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En resumen y como ya dijeron en otros posts: si cuando pagues el envío está a cargo de AmanzonGlobal (enviado por Amazon) e incluye el ítem Import Fees, eso pagarás y punto. No hay cargos adicionales al pagado. Punto. Y es lo mismo para Amazon USA, Japon y Tangamandapio.