Even if a sponsor (host) covers all expenses, the applicant is still required to submit their own bank statement for at least the past 3 months, because this document is officially requested by the embassy.
If not submitted, the application may be considered incomplete, raising doubts about whether the applicant truly has income or employment as declared.
It is also one of the key documents that demonstrate strong ties to the home country.

Why applicants must submit their bank statements in all cases:

1. To show ties to the home country
   Having financial transactions in the applicant’s own bank account proves that they have income/assets and strong reasons to return, instead of relying entirely on the sponsor.
2. To reduce suspicion of overstaying
   If only the sponsor provides financial support while the applicant shows no personal funds, the embassy may suspect a lack of financial stability.
3. Different embassy requirements
   • Some embassies may accept only the sponsor’s documents (if the sponsor fully guarantees).
   • However, most embassies still prefer to see the applicant’s bank statement alongside the sponsor’s.

✅ Conclusion: Even with a sponsor’s guarantee, it is strongly advised that applicants submit their own bank statement (3–6 months) to increase credibility and the chance of visa approval.