Any and all installments of interest or principal of bonds issued under the provisions of this part not promptly paid when due shall draw interest at the rate of 6% per annum from the date due until actually paid, irrespective of the rate of interest on the bonds themselves.
Mont. Code Ann. § 7-7-4263
Interest on late payments of principal and interest
En
Official source: Montana Code Annotated (Montana Legislature). Reproduced from public-domain Montana statutes; confirm against the official source for the current text. Not legal advice.