In a Trust Deed, how do you calculate Surplus income?

We will calculate your surplus income by taking into account your income from employment or other means and deducting all of your day to day living expenses & household bills (not including any money owed to your unsecured creditors). After allowing for these expenses, whatever money you have remaining should be paid towards your Trust Deed. All Trust Deeds follow the Common Financial Statement (CFS) when calculating your surplus income.  You cannot make a contribution to a Trust Deed if your income is solely derived from social security benefits.