Joint Wills and Mutual Wills

Joint Wills & Mutual Wills — careful about your convenience.

A joint will is one document signed by two people. Usually a couple. Legally valid in India. Probated (if you want to) separately on each death. Either person can revoke their part anytime - even after the first spouse dies. No issues so far.

When a joint will becomes mutual

The problem starts when the will becomes “mutual.”

A mutual will is an agreement between two people that neither will change the plan. This can be a joint will with mutual terms, or even two separate wills with an underlying pact. The form doesn’t matter. The agreement does.

Once the first spouse dies, the survivor is stuck. Courts will impose a constructive trust to enforce the original arrangement. The survivor cannot change their mind.

Difficulty arises where couples sign a joint will thinking they are just sharing a document (not being bound by anything). But if the language - or even surrounding letters and emails - suggests they agreed not to change the plan, a court may treat it as mutual. Irrevocable. Binding on the survivor.

In fact, I would go so far to say that even if the will is silent on the revocability or amendability, it would be unnecessarily leaving things to chance.

The simple fix

Simple fix: If for convenience the couple wants a single doc (joint will) then it should explicitly mention that the surviving testator can revoke/amend to the extent of their part of the joint will. Or even better, make separate wills. Mirror each other’s plan if you want alignment. But keep each will independently revocable.

Same result. No trap.