Alberto,
Why do you want to have a Despachante involved? No residency?
Here is a breakdown of taxes:
A mandatory motor-vehicle ownership tax (imposto sobre propriedade de veiculos automotores - IPVA) is payable for all motor vehicles in Brazil. This is paid for annually; the month in which it is to be paid corresponds with the final digit of the vehicle's registration number. It is paid in arrears and not for the following year. The process is referred to as licenciamento, and to obtain the road tax statement the driver must pay any outstanding fines for parking or speeding.
This tax is calculated on the vehicle's value and is levied by the state, though the municipality in which the car is registered also receives money. The money is used at state and municipal level for general purposes.
When the payment is due, the car owner will receive a letter from the Brazilian State Transport Department (Departamento Estadual de Trânsito - DETRAN) office, indicating the amount due and a due date. This letter will need to be taken to the bank that is financing the car if the owner has a loan outstanding, or in most cases, to the bank with which the owner has an account. Some banks offer an option to pay the IPVA in three monthly payments, and in some states in Brazil it is possible to pay this in monthly installments.
The vehicle owner will need to present their vehicle license document (Certificado de Registro e Licenciamento do Veículo - CRLV) when making the IPVA payment. Once payment has been made, the statement sent by DETRAN will be stamped and must be kept with the other vehicle documents in the car when driving to indicate that the IPVA has been paid. Failure to pay the IPVA incurs a fine. An updated CRLV is sent through the post by the local DETRAN.
The Brazilian road tax system includes an automatic minimum third-party insurance system known as DPVAT (personal injury caused by road vehicles/danos pessoais causados por veîculos automotores de vias terrestres). This is sometimes referred to as Seguro Obrigatório, or compulsory insurance. This ensures all vehicles have minimum third-party cover and that victims of road accidents will receive damages or compensation for injuries.
IPVA and DTrans are now online only, so you have to go online and print the boleto and pay at BB or a bank noted on the document. (DETrans is BB only)
I have bought directly with the dealership. I negotiated in US dollars with the dealer and wired the money (including IPVA ,) to the dealer.
Currently, the tax rates of the cars produced in Brazil range from 7% to 25% depending on the model and power the car. The new rate will increase by 30 percentage points, from 37% to 55% depending on engine capacity. For cars up to 1,000 cc, the IPI will rise from 7% to 37%. For vehicles from 1000 to 2000 cc, the rate, currently between 11% and 13%, will rise to 41% to 43%.
Protectionism at its best.