Receiving Holy Communion is one of the most sacred moments of the Catholic Mass. Catholics believe that the Eucharist is not merely a symbol: in Holy Communion, the faithful receive Jesus Christ himself. Because the Eucharist is so holy, the Catholic Church asks each person to prepare both spiritually and physically before receiving.This family-friendly guide explains the principal Catholic rules for receiving Holy Communion, including the requirements for children preparing for First Holy Communion. The rules are not meant to suggest that the Eucharist is a reward for perfect people. They help Catholics approach Christ with faith, repentance, devotion, and reverence.

Who May Receive Holy Communion in the Catholic Church?

Ordinarily, a person may receive Holy Communion at a Catholic Mass when he or she:

Is a baptized Catholic or has been formally received into full communion with the Catholic Church
Has received appropriate instruction and preparation
Believes what the Catholic Church teaches about the Eucharist and approaches with faith and reverence
Is not conscious of an unconfessed mortal, or grave, sin
Has observed the required one-hour Eucharistic fast, unless an exception applies
Is not otherwise prohibited from receiving by Church law

For a child receiving the Eucharist for the first time, the Church also requires sufficient understanding, careful preparation, and sacramental Confession before First Communion.

1. The Person Should Be a Baptized Catholic

Holy Communion ordinarily belongs to those who are in full communion with the Catholic Church. This is because receiving the Eucharist expresses not only a personal belief in Jesus, but also unity with the Catholic Church’s faith, sacramental life, and authority.

Non-Catholic family members and guests are warmly welcome to attend Mass, listen to the Word of God, join in the prayers, and pray for Christian unity. They ordinarily should not receive Holy Communion. There are limited exceptions for certain Christians in particular circumstances under canon law; anyone who believes an exception may apply should speak privately with the Catholic priest before Mass rather than deciding independently.

2. Receive Holy Communion in a State of Grace

A Catholic who is conscious of having committed a mortal sin should receive the Sacrament of Reconciliation before receiving Holy Communion. The Church calls Catholics to examine their conscience honestly and approach the Eucharist with a heart reconciled to God.

A person does not need to go to Confession before every Communion. Venial sin does not prevent a Catholic from receiving, although frequent Confession is encouraged and helps the faithful grow in holiness. If someone is uncertain whether a situation involves mortal sin, the best step is to speak privately with a priest instead of relying on a general list found online.

Canon law describes a narrow exception when there is a grave reason to receive and no opportunity for Confession. In that exceptional situation, the person must make an act of perfect contrition and intend to confess as soon as possible. Because this exception requires careful discernment, a Catholic should seek a priest’s guidance whenever possible.

3. Observe the One-Hour Eucharistic Fast

In the Latin Catholic Church, a person preparing to receive Holy Communion must abstain from food and drink for at least one hour before receiving the Eucharist. The hour is counted before the expected time of Communion, not simply before Mass begins.

Water does not break the Eucharistic fast.
Medicine does not break the Eucharistic fast.
The elderly, the infirm, and those caring for them may receive even if they have eaten within the preceding hour.

Parents should help a First Communicant plan breakfast and medications with the fast in mind. When health, disability, or dietary concerns are involved, families should ask their parish for appropriate guidance.

4. Understand Whom You Are Receiving

The communicant should recognize that the consecrated Host is not ordinary food. Catholic teaching holds that Jesus Christ is truly present—Body, Blood, Soul, and Divinity—in the Eucharist.

Children are not expected to have an adult or theological understanding of every aspect of the Eucharist. They should understand the mystery according to their ability, be able to distinguish the Body of Christ from ordinary food, and receive with faith and devotion.

5. Approach the Eucharist With Reverence

Interior preparation should be reflected in outward reverence. A communicant should participate attentively in Mass, approach the minister prayerfully, receive carefully, and spend time thanking Jesus after Communion.

Modest, respectful clothing is appropriate for Mass, but the universal Church does not prescribe one specific First Communion dress, veil, suit color, or accessory. Those details may be governed by a parish dress code, so parents should review their church’s written instructions before shopping.

Catholic First Communion Requirements for Children

First Holy Communion most often takes place around the age of reason—commonly about age seven or eight in the United States—but the Church’s concern is a child’s readiness, not a particular school grade alone.

Under the Code of Canon Law, a child preparing for First Communion should:

Be baptized and provide a baptismal record when the parish requests it
Have reached the use of reason
Receive careful, age-appropriate religious instruction
Understand the mystery of Christ according to his or her ability
Be able to distinguish the Body of Christ from ordinary food
Be able to receive Holy Communion with faith and devotion
Receive the Sacrament of Reconciliation before First Holy Communion

Parents and pastors share responsibility for making sure a child is properly prepared. Individual parishes may also require classes, parent meetings, Mass attendance, a retreat, rehearsal, paperwork, or other local preparation. These procedures support sacramental formation, but they should not be confused with the universal requirements of canon law.

First Communion and Children With Disabilities

A disability, by itself, is not a reason to exclude a Catholic child from the sacraments. The essential criterion is the same for children with intellectual or developmental disabilities: the child should be able to distinguish the Body of Christ from ordinary food. The United States Conference of Catholic Bishops explains that this recognition may be shown through manner, gesture, or reverential silence rather than words.

Parents, catechists, and the pastor should work together on suitable preparation and accommodations. When readiness is uncertain, the bishops’ guidance says that doubt should be resolved in favor of the baptized Catholic’s right to receive the sacrament.

How to Receive Holy Communion Reverently at Mass

For Catholics attending Mass in the United States, the ordinary practice is as follows:

Approach in the Communion procession quietly and prayerfully.
Make the prescribed bow as the person ahead of you receives.
When the minister says, “The Body of Christ,” answer clearly, “Amen.”
Receive the Host either on the tongue or in the hand. In the United States, the choice belongs to the communicant.
If receiving in the hand, hold clean hands open and allow the minister to place the Host on the palm. Do not grab it from the minister.
Consume the Host immediately and reverently; never carry it back to the pew or take it out of the church.
If receiving from the chalice, answer “Amen” after “The Blood of Christ,” take a small sip, and return the chalice to the minister. A communicant should never dip the Host into the chalice independently.
Return to your place and offer a prayer of thanksgiving.

Standing is the norm for receiving Communion in the United States, although an individual Catholic may choose to kneel. Parish instructions may help organize the procession, especially during a First Communion Mass.

How Often May a Catholic Receive Holy Communion?

The Church strongly encourages Catholics who are properly disposed to receive Holy Communion frequently—even daily. After First Communion, Catholics are required to receive the Eucharist at least once each year, ordinarily during the Easter season, unless a just cause permits another time.

A Catholic may receive Holy Communion a second time on the same day when the second reception takes place within a Mass in which the person participates. The separate rules for Viaticum apply to a person in danger of death.

What Should Someone Do When Not Receiving Communion?

No one is required to receive Holy Communion at every Mass. A person who is not Catholic, has not observed the fast, is conscious of an unconfessed mortal sin, or is otherwise not prepared should refrain from receiving.

There is no shame in remaining in the pew and praying. A person who is not receiving may make a spiritual Communion, asking Jesus to draw near and deepen his or her desire for unity with Christ. Because customs about approaching with crossed arms vary, visitors should follow the parish’s instructions rather than assume that this gesture is used everywhere.

Frequently Asked Questions About Receiving the Eucharist

Must Catholics go to Confession before every Communion?

No. Confession is necessary before receiving when a Catholic is conscious of mortal sin. Frequent Confession is encouraged, but it is not required before every reception of Holy Communion.

Does the one-hour fast begin before Mass?

The fast is counted for one hour before the actual reception of Holy Communion. Water and medicine are permitted.

Must a Catholic receive from both the Host and the chalice?

No. Christ is fully present under either species. Receiving the consecrated Host alone is a complete reception of Holy Communion.

Is a child required to make First Confession before First Communion?

Yes. For children who have reached the use of reason, the Latin Church requires sacramental Confession before First Holy Communion.

Can a non-Catholic receive Holy Communion at a Catholic First Communion Mass?

Ordinarily, no. Non-Catholic guests are welcome to attend, pray, and share in the celebration, but they generally should not receive the Eucharist. Narrow exceptions exist under canon law and should always be discussed with the priest beforehand.

Does a Catholic have to receive Communion at every Mass?

No. Catholics should receive frequently when properly disposed, but they are not required to receive at every Mass.

May Holy Communion be received twice in one day?

Yes. A Catholic may receive a second time on the same day when the second reception occurs within a Mass in which the person participates. Viaticum in danger of death is treated separately.

Helping Your Child Prepare for First Holy Communion

Parents can support their child’s preparation by attending Sunday Mass as a family, praying together, reviewing the prayers and lessons taught by the parish, talking about the Real Presence of Jesus in the Eucharist, preparing for First Reconciliation, and practicing the respectful response “Amen.”

Continue your family’s preparation with these helpful FirstCommunions.com resources:

Once your parish has confirmed its attire guidelines, families may also browse First Communion dresses, First Communion veils and headpieces, and boys First Communion suits at Christian Expressions, serving First Communion families since 1996.

Official Catholic Sources

Reviewed against official Catholic sources on August 17, 2026. This educational guide does not replace the pastoral direction of your priest, parish, diocese, or Eastern Catholic Church.