This is often entered into when the couple initially separate, to regulate their financial affairs and the care arrangements for their children. It's common for the couple to come to an agreement regarding the division of their assets
and for payment of financial support for the spouse and children and indeed for the division of assets to take place at, or shortly after, the time they separate. Thereafter, if the parties do come to divorce, the divorce action can proceed on an uncontested basis.
Such separation agreements are normally registered in the Books of Council and Session located in Edinburgh; this can be done simply by writing a letter to the Books of Council and Session with a copy of the signed agreement and asking for it to be registered. There is a fee payable depending on how many pages the agreement extends to and how many copies are required; once registered, the agreement has the same effect as a divorce court decree and can be enforced.
There is only limited scope for changing the terms of a registered agreement. For example, it's possible to vary the arrangements made for the care of the children and to vary the arrangements made for the payment of maintenance for a spouse and/or children if there is a change of circumstances. Otherwise the provisions of the agreement can only be challenged if it can be shown that they were not fair and reasonable at the time they were entered into.