This Italy personal loan calculator models the monthly repayment (rata) on a prestito personale at the rate your lender quotes, shows the total interest and total repaid, and flags rates that look high against the tasso soglia usura cap.
How it works
The fixed monthly rata uses the standard amortising-loan formula:
M = P · r(1+r)ⁿ ⁄ ((1+r)ⁿ − 1)
where P is the amount borrowed, r is the monthly rate (annual TAN ÷ 12 ÷ 100) and n is the number of months. Each rata covers the interest on the current balance plus a slice of capital, so as the balance falls the interest portion shrinks and the capital portion grows.
Total interest is rata × months − principal. The headline rate here is the TAN; the figure to compare between lenders is the all-in TAEG, which also includes fees. The tool warns if the rate approaches the 20% region where personal-loan usura thresholds typically sit.
Example
Borrowing EUR 12,000 over 48 months at a 9% TAN gives a rata of about EUR 299/month. Total repaid is roughly EUR 14,340, so total interest is about EUR 2,340. Stretching the same loan to 72 months lowers the rata to about EUR 217 but raises total interest to roughly EUR 3,600 — a longer term means smaller payments but more interest overall.
Notes
Compare offers on TAEG, not TAN, since arrangement fees, insurance and stamp costs can add materially to the real cost. Check that the TAEG sits below the Banca d’Italia quarterly tasso soglia for consumer credit. This is an estimate, not a credit offer.