"In 2021, the base amount in Spain ranges from between €944.40 and €4,070.10. This amount is then multiplied by 30.6% which gives you a minimum monthly payment (Cuota de Autónomo) of €288.98. The more you earn, the more you will ultimately pay.
Recently, however, the Spanish government has reduced this amount to €60 per month for the first 12 months of self-employment. The payments then rise to €144.50 per month for months 13-18, and €202.30 per month from months 19-24.
For self-employed men under the age of 30 years and women under 35 years, there is a further reduction for an extra 12 months of 30%, bringing their total reduction period to 36 months.
For all other self-employed workers, after 24 months, there are no further discounts. (See 2017 changes below)
Note that any social security payments are tax-deductible."
Digital nomad Visa not yet in effect - need to be employed from entities registered in different country - cannot make any money in Indonesia