Dear Liz: In a previous answer to a question about liability insurance, you indicated that people should normally have enough insurance to cover their assets. Which assets should be included, as it is my understanding that some assets are exempt from creditors, such as 401(k)s and IRAs? Also, how are future earnings or future annuity payments for retirees taken into account when trying to determine how much liability insurance to carry? Should one essentially cover the present value of their future income for 10 years? Twenty years? Life?

Answer: As indicated in the previous column, there’s as much art as science in determining appropriate liability coverage. Liability insurance pays the tab when you face a lawsuit or similar claims. Some people sleep better at night with high policy limits, while others would rather deploy their money elsewhere.

Liability insurance is relatively inexpensive, so getting a lot of coverage typically won’t break the bank. But you also need to make sure you’re adequately covered for disability and long-term care, which you’re more likely to need than your liability insurance.

You’re correct that workplace retirement plans such as 401(k)s are protected from creditor claims. So are IRAs, up to $1 million. Each state has different rules about other property, but typically a certain amount of home equity is protected as well. In Texas and Florida, this so-called homestead exemption is virtually unlimited. In other states, the amount protected is relatively small. (In California, it can be as small as $25,575, according to legal self-help site Nolo.) Similarly, states are all over the map in how they treat annuities.

Social Security income, by contrast, is safe from creditors except Uncle Sam. The federal government can take a portion of your Social Security check if you’ve defaulted on federal student loans, for example.

Financial advisors typically focus on net worth, rather than incomes, when recommending appropriate levels of liability coverage. If you’re a high earner with few assets, though, you might want to take your future income stream into account. Exactly how much can be a discussion between you and your advisor or insurance agent.