Every year, I am the one who says Kaddish for my mother-in-law on her yahrtzeit. This year, it falls out during the 12th month of aveilut for my father, when one should not say Kaddish. How should I reconcile the conflict?

Before suggesting any solutions, let us discuss the value of saying Kaddish on your mother-in-law’s yahrtzeit and refraining from Kaddish in the 12th month of aveilut.

While the yahrtzeit is considered a potentially difficult day for the deceased and/or his children (Mahari Mintz 9), the focus in saying Kaddish is to improve the state of the deceased’s soul (Avodat Hagershuni 62). Causing others to sanctify Hashem’s Name is a powerful merit, which helps the deceased. When it is done by the deceased’s son, the idea is that the son’s continuing good deeds are a credit to those who brought him into the world (see story of Rabbi Akiva, Kalla Rabbati 2:9; Binyamin Zev 201). For this reason, a son is singled out over other relatives (see Rama, Yoreh Deah 376:4). Because it is a once-a-year opportunity (Divrei Sofrim 376:67), a yahrzeit commemorator has high Kaddish priority (similar to an avel in sheloshim — see Rama ibid.).

Missing reciting Kaddish on your mother-in-law’s yahrzeit is not particularly damaging. First, a son-in-law cannot provide the greatest gain, as above. In fact, according to many (see Piskei Teshuvot 132:30), a grandson — who is a descendant — is a better option when feasible. This is not to belittle your yearly contribution.

Anyone who says Kaddish with a deceased in mind (or even for all departed Jews —Rama ibid.) has a positive impact. You have the advantages of being obligated to show respect to a mother-in-law and that feeling close to the deceased enhances its impact (Divrei Sofrim 376:83,87). However, we see no reason your mother-in-law’s soul should suffer if you are replaced this year by another relative, a friend or a recipient of her chesed. Add to this that other matters are largely presumed to help the departed soul more than saying Kaddish. These include being chazan, doing extra mitzvot and learning l’ilui nishmat the deceased (see Divrei Sofrim 376:99).

How problematic is it to say Kaddish in the 12th month? A mourner’s recitation of Kaddish for 12 months helps the deceased during his time in Gehinnom, which can be up to 12 months. Saying Kaddish for 12 months disgraces the parent, implying the expectation they need the maximum time (Rama ibid.). The Kaddish does not otherwise hurt their soul; the problem is the appearance. Therefore, if it does not look bad, e.g., both parents died within the year, so that the mourner needs to recite Kaddish for the second one during the first’s 12th month, he can continue (Divrei Sofrim 376:108). On the other hand, we are quite particular about this, and it is not unlikely that the exception is only for a competing obligation to recite for the other parent, not a voluntary recitation for a mother-in-law.

With the above in mind, we present —,with short explanations —, two good “compromises” to choose from. Both include getting someone else to do a full set of Kaddishim, in addition to your wife/(others) doing the other elements properly.

(1) Say one Kaddish for your mother-in-law sometime during the yahrzeit. When only one person used to say a given Kaddish, giving one Kaddish for the yahrzeit was sufficient when he was “beaten out” by an avel in sheloshim (Rama ibid.).

(2) Arrange to be a chazan at all or some of the day’s tefillot and say only the non-mourners’ Kaddishim. A mourner in the 12th month may be an occasional chazan (Shevet Halevi III:165), and by not saying Kaddish Yatom, you are showing it is not to “save your father.” We mentioned above that this is “better” for the deceased than to say Kaddishim without being chazan.

These are “win-win” compromises (that mechutanim hopefully have gotten used to during their lifetimes), which all parties should be happy with. However, if special sensitivities cause you or your wife’s family to be upset by such arrangements, doing either a full Kaddish regimen or none at all is justifiable.

Rabbi Mann is a dayan for Eretz Hemdah and a staff member of Yeshiva University’s Gruss Kollel in Israel. He is a senior member of the Eretz Hemdah responder staff, editor of Hemdat Yamim and the author of “Living the Halachic Process Volumes 1 and 2” and “A Glimpse of Greatness.”