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Articles

The guides on this site cover the procedure: which form, what it costs, how long it takes. These pieces go after the questions that do not fit inside a single transactional page — the rule that just changed, the technology that is not quite ready, the thing every buyer should check and almost nobody does.

Every one is written and reviewed by Javier Marín, worked up from the agency that makes the rule rather than from somebody else's summary, and carries the sources at the bottom so you can check it. If one of them is wrong, the editorial policy explains how to tell us and what happens next.

Browse the guides by topic

Looking for the procedure rather than the background? These are the most-read reference pages in each section of the site.