"Statutory interest" is interest due under the law as an ancillary obligation to pay a sum of money. The program calculates the legal interest accrued on a given sum and the amount accrued at maturity, or the sum of principal and interest, automatically applying the reference legal interest rates for each individual period, according to their temporal variation. The application, intended for both public administrations and lawyers, consultants, accountants, tax advisers, allows you to calculate the legal interest with the possibility of setting any quarterly, half-yearly or annual capitalization (with or without compound interest). At the end of each calculation the results are copied to the clipboard.The user is required to verify the accuracy of the information provided. The author therefore declines any responsibility for errors, inaccuracies and omissions.