Answer
For ciudadanía legal, it is important to demonstrate medios de vida—lawful means of support—and an economic or professional connection. A universal fixed dollar amount cannot be considered a guaranteed threshold for each applicant: the source, regularity, family composition, and current Corte Electoral practices matter.
Evidence may include a formal salary, registered self-employment, a pension, rental income, or other documented income. A balance in an account or a transfer between your own accounts may not be sufficient if it does not demonstrate a stable source of income.
Prepare contracts, recibos, statements, BPS information, and a certificate from a contador or escribano in the required form. Before filing, confirm which period and documents your office accepts; do not create artificial monthly deposits merely to meet a formal figure.