Appreciation of premarital and inherited assets in Colorado Appreciation of premarital and inherited assets in Colorado

Under C.R.S. 14-10-113, marital property generally includes all property acquired by either spouse during the marriage, and it expressly includes the increase in value of separate property during the marriage. Separate property, what you owned before the marriage, or received by gift or inheritance, remains yours. Its growth does not. Most states divide the growth of separate assets only when marital effort caused it. Colorado skips that question. Market growth, effort growth, inflation, luck: if the value went up between the wedding and the divorce, the increase is marital. You keep the original; the marriage owns the gain.

More than people expect. The premarital house: your equity at the time of marriage is separate; appreciation since, plus paydown during the marriage, is marital. The inherited brokerage account: the inherited value is separate; every dollar of market growth after receipt (or after the wedding, if inherited before it) is marital. The premarital business or professional practice: date-of-marriage value is separate, growth marital, which for a practice built over a long marriage can dwarf the original value. Gifts from your family during the marriage: separate as received, growth marital. Trust interests are the nuanced corner. Whether a beneficial interest counts as property at all, and when its growth starts counting, depends on the trust's terms, vesting, and control. If family trusts are part of your picture, get the instruments to counsel early. The drafting decides more than the label does.

Every appreciation case reduces to a subtraction: value at the end, minus value at the beginning. The beginning number is where cases are won. The end value gets appraised in the ordinary course of the case. The date-of-marriage or date-of-inheritance value has to be proven, by the spouse claiming the separate property, and proving it fifteen years later means old statements, old appraisals, old tax returns, estate filings. Every document you can't find shifts value toward the marital column. If you're reading this before a divorce is on the horizon: preserve the wedding-date records now. If you're reading it mid-case: reconstruction is possible, through archived statements, historical valuations, and forensic work, and it's worth doing properly, because the baseline caps the entire dispute. Remember too that Colorado divides marital property equitably, not automatically equally. The appreciation goes in the marital column; how it splits from there depends on the statutory fairness factors, including each spouse's circumstances and contributions.

Yes, by agreement. A prenuptial or postnuptial agreement can override the appreciation rule and keep separate property's growth separate, which is one of the most common reasons Coloradans with premarital assets, expected inheritances, or family businesses sign one. If that ship has sailed, planning shifts to documentation and structure: clean titling, no commingling, and baseline valuations preserved. The rule can't be avoided after the fact, but it can be measured honestly instead of guessed at expensively.