We are not asking for “Support/Help” from CustoMed. We just comply with Government requirement as the payer of an item of income (on royalties) to withhold or deduct tax from the payment, and pay that tax to the government.
Typically the withholding tax (or retention tax) is treated as a payment on account of the recipient's final tax liability. It may be refunded if it is determined, when a tax return is filed, that the recipient's tax liability to the government which received the withholding tax is less than the tax withheld, or additional tax may be due if it is determined that the recipient's tax liability is more than the withholding tax. In some cases the withholding tax is treated as discharging the recipient's tax liability, and no tax return or additional tax is required.