According to Colorado law, both spouses must provide the Court (and one another) with financial documents in order to best ascertain the value of assets obtained during the marriage. In other words, you must disclose all financial documentation, and then it will be up to the Court to decide what is “separate” property, and what must be divided between spouses. Even though your bank account is only in your name it is still going to be considered marital property if:
You deposited funds during your marriage that co-mingled with funds from prior to your marriage. In this case, the account would be considered co-mingled and therefore marital property.
The funds you deposited were earned during the marriage, or
Even if you only have funds in the account from before your marriage, the principal amount will be separate funds but the interest earned on funds or any increase in value to the account during your marriage is considered marital property.