If your financial situation or the financial situation of the parent who owes support significantly changes after the support order is established, it may be modified. If you ask for a change, the sum will be recalculated following criteria established by Florida law. Typically, a court only receives a petition for modification when the guidelines indicate that the amount should increase by at least 15% or $50 per month, whichever is higher. There might be more limitations if this is an interstate case (involving another state). Even if the parent who owes support will pay less, we must see the process through to its conclusion once it has begun.