[ \sum_k=1^n \fracAmount_k(1+TAE)^t_k = \sum_j=1^m \fracPayment_j(1+TAE)^s_j ]
The Banco de España requires banks to disclose that TAE certain costs: calculo tae banco de españa
The TAE standardizes products. A loan with a lower TIN but high commissions could have a higher TAE than one with a slightly higher TIN but no fees. calculo tae banco de españa
A very low TAE might double in cost once mandatory insurance is added. Always read the "Coste Total" (Total Cost) section. calculo tae banco de españa
