Definite imports are those items you are sending into México that are not expected to return, such as expendable materials. Production companies that are not Mexican entities (and not on the list of Registered Importers) are not technically allowed to import materials on a definite basis and must therefore go through a third-party Mexican vendor, who will act as the importer of record. These arrangements can be made through your Mexican Custom’s agent.
You will be paying duty to Mexican Customs on definite imports. Duties will range from 10- 25% of the declared value of your goods, depending on what you are importing into México -- plus another 10 for I.V.A. (tax). Your Mexican agent may ask for a deposit against duties they anticipate paying for you.
If you import items into México on a definite basis that turn out to be defective, the incorrect size or unacceptable, you may return them to the U.S. for exchange or repair. You will be required to write a letter explaining why you are making the return, but your broker will handle the process. If you are importing expendables (such as hardware items: nails, screws, tape, etc.) that are part of a “kit”, and a portion is expected to return, you may be advised to declare these items as temporary imports. Check with your broker in these instances.