Most couples manage their finances jointly. The income from both spouses is used to pay for all household and personal expenses. At the end of a relationship, the spouses need to separate their finances. Both spouses need to assess their financial situation and begin to manage money separately. The sooner you deal with separating your finances, the easier and less stressful your separation will be.
First, you need to do a financial inventory of your assets and debts. You need to figure what you own and what you owe. For some things, like a home or a car, this may mean that you need to get a market assessment to determine their value.
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