What happens if new financial disclosure comes to light after a motion to change is already filed?

New financial disclosure that emerges after a motion to change is already filed generally needs to be brought to the court's and the other party's attention promptly, rather than held back or ignored, since ongoing financial disclosure obligations continue throughout a family law proceeding, not just at the outset. Depending on how significant the new information is, it may need to be added through an updated or supplementary affidavit, and the other party is entitled to respond to it.

If the new disclosure materially changes the picture — for example, revealing a different income figure or a previously undisclosed asset — it can affect the strength of the motion, and in some cases, may itself become part of what the court is being asked to consider in deciding whether the alleged change in circumstances is made out. Failing to disclose new, relevant financial information once it's known can be treated seriously by a court and can affect both the outcome and any later costs decision. Anyone who discovers new financial information after filing a motion to change should tell their lawyer right away.