Short answer. No. Under Article 838 of the Civil Code, once a will is allowed by the court — subject to the right of appeal — that allowance is conclusive as to its due execution. The question of whether the will was properly signed and witnessed cannot be relitigated once the probate order becomes final.
What the law says
Subject to the right of appeal, the allowance of the will, either during the lifetime of the testator or after his death, shall be conclusive as to its due execution.
Civil Code, Article 838 — No Will Passes Property Until Probated. Read the full provision →
What 'conclusive as to due execution' means
Article 838 establishes a firm rule: "Subject to the right of appeal, the allowance of the will, either during the lifetime of the testator or after his death, shall be conclusive as to its due execution." "Due execution" refers to whether the will complied with the formal requirements of the law — proper signing, presence of witnesses, testamentary capacity at the time of signing. Once the probate court allows the will and the order becomes final, those questions are settled. No heir can come back years later and argue the will was improperly witnessed or that the testator lacked capacity at the moment of signing.
The appeal window
The conclusiveness is not immediate — Article 838 preserves "the right of appeal." If you believe the probate court made an error in allowing the will, your remedy is to appeal the order through the regular appellate process. Once the time to appeal has passed and no appeal was filed, or once the appellate courts have affirmed the allowance, the finality locks in. This is why it is critical to act quickly if you have serious objections to a will during probate proceedings.
What probate does not settle
Conclusiveness as to due execution does not mean the will resolves everything. Probate determines that the will was validly made — not how the estate should ultimately be divided. Issues that can still be raised after probate include claims that a specific bequest is invalid because it impairs the legitimes of compulsory heirs, disputes over the identity or extent of the estate's assets, claims by creditors of the estate, and questions about whether specific property actually belonged to the testator. These matters are addressed in separate estate settlement proceedings.
Wills can also be probated during the testator's lifetime
Article 838 also provides that a testator may petition the court to allow the will during their lifetime. This is uncommon in practice but legally permitted. The same conclusiveness rule applies: if the will is allowed during the testator's lifetime, that allowance is conclusive as to due execution upon death, subject to any appeals taken. For heirs who discover after a parent's death that the will was already allowed years earlier, the probate order may already be final and binding.
Cases citing this provision
These Supreme Court decisions cite the provision above. We list them so you can read them yourself; the summaries of what each decided are not ours to give.
- Spouses Ricardo Pascual and Consolacion Sioson vs. Court of Appeals, et al, G.R. No. 115925, August 15, 2003 — read the decision on LawPhil →
- In the matter of the petition for the probate of the will of Consuelo, G.R. No. 204793, June 8, 2020 — read the decision on LawPhil →
- Dolores L. Hacbang and Bernardo J. Hacbang vs. Atty. Basilio H. Alo, G.R. No. 191031, October 5, 2015 — read the decision on LawPhil →
- Alejandra Arado, et al. vs. Anacleto Alcoran and Elenette Sunjaco, G.R. No. 163362, July 8, 2015 — read the decision on LawPhil →