Mont. Code § 27-1-312 : CIVIL LIABILITY, REMEDIES, AND LIMITATIONS — AVAILABILITY OF REMEDIES - LIABILITY — MEASURE OF DAMAGES —1-312 - Breach of obligation to pay money TEXT PDF The detriment caused by the breach of an obligation to pay money only is deemed to be the amount due by the terms of the obligation with interest thereon. § 27-1-312, MCA En. Sec. 4302, Civ. C. 1895; re-en. Sec. 6050, Rev. C. 1907; re-en. Sec. 8669, R.C.M. 1921; Cal. Civ. C. Sec. 3302; Field Civ. C. Sec. 1842; re-en. Sec. 8669, R.C.M. 1935; R.C.M. 1947, 17-303.