In South Dakota, can I change my will after I sign it?

Yes. Your South Dakota will is in effect until it is changed or revoked. You may do this as often as you wish as long as you are legally competent to do so. In fact, it is recommended that you review your will every two to four years. You should also review your will if you have a change in tax laws, family circumstances, or in the amount and the kind of property you own. Of course, any change to your will requires a careful analysis to make sure that it reflects your wishes.