BLS International submission: Spain uses BLS International in Bangkok for visa applications. Book an appointment on the BLS website. Spain is popular (especially for tours and study), so try to secure a slot early.
Carta de Invitación (official invite) REQUIRED: Spain is very strict about private visits. If you will stay with your partner in Spain, they require an original “Carta de Invitación” issued by the Spanish National Police. Your partner in Spain must apply for this at their local police station well in advance. The approved letter (with official stamp) should be mailed to you to submit. Without this official invitation, BLS/consulate may not accept your application for a visit to a friend. A personal invitation letter alone is usually not accepted in lieu – Spain wants the official one.
Other documents expectations: Along with the Carta de Invitación, include your partner’s empadronamiento (residence registration) and DNI/NIE copy to show they legally reside at that address. Spain also will require proof of your relationship, which can be photos together or correspondence. They might ask for an explanation letter if you are not married – stating how long you’ve been together and plans. Be honest and concise.
Financial sponsorship sensitivity: Spain typically expects you to show funds of at least ~€90 per day (their official guideline). If your partner sponsors you, the consulate still wants to see your own bank statements to ensure you have some financial stability. Provide your last 3-6 months statements and your partner’s financial proof. Spanish consulates have been known to be picky – even questioning if they think funds appear insufficient or too last-minute. So ensure your account has consistent activity and not just a sudden big deposit.
Return ties evaluation: The Spanish Consulate will absolutely check that you have compelling reasons to return (they are cautious due to prior overstays). Make sure your employment letter is very clear about your leave and return date. If you have family (like children or parents you care for), mention that with supporting documents. Spain sometimes issues visas with shorter validity or single-entry to first-time visitors – don’t be alarmed, it’s common. Just follow the rules and it’ll be easier for future trips.