The most important mechanism for protecting the existential minimum of workers in all tax systems is the institute called "basic personal deduction". In short: it is a fixed amount of your salary that is never, under any circumstances, legally taxed with even a single fening of income tax!
The legislator defines that every person has a Minimum existential mandatory living cost (need to buy bread, electricity bills) that must exist for their bare survival within the working municipality. Therefore, it is only fair that the state DOES NOT TAKE AND EXPROPRIATE from you such a strictly basic monthly prescribed amount through taxes.
In 2026, the amount depends on the entity: in the Federation of BiH it is 300 KM, while in the Republika Srpska it is 1,000 KM per month.
If your total mandatory taxable monthly income is less than or exactly the same as your assigned Deduction amount from the tax card (i.e., you do not earn anywhere near the legally provided tax threshold), INCOME TAX then simply and MUST be 0 KM. Zero. Then the amount (after minimal pension deduction) is paid directly to your account without further reduction for the state! Many people with very low earnings and dependent members actually legally avoid paying this state burden entirely!