Can we use a sponsor letter from relatives who are German nationals to avoid showing the block amount?

Yes, you can use a sponsor letter from a relative who is a German national to meet the financial proof requirement for a German student visa. This is done through a "Verpflichtungserklärung" (formal obligation letter).

- The sponsor must be legally residing in Germany and show sufficient income to cover both their own and your living expenses (currently €1,027/month; subject to change).
- The sponsor must obtain the Verpflichtungserklärung from the local immigration office in Germany and send you the original document for your visa application.
- The Verpflichtungserklärung is typically valid for six months from issue.

Some German embassies may have specific preferences or requirements, so embassy acceptance is subject to change. If your sponsor does not meet income requirements, the blocked account option remains available.