What a support letter should accomplish
A mission trip support letter should explain the opportunity, establish trust, invite prayer, present the financial need, and give the reader a simple next step. It should sound like the person sending it—not like a generic fundraising advertisement.
The strongest letters are specific without being dramatic. They describe the host organization and planned service honestly, avoid making promises about outcomes, and treat potential supporters as partners who are free to respond.

Information to gather first
Confirm all costs and giving instructions before sending the letter. If gifts must go through a church or nonprofit, use the exact designation language that organization provides.
- Trip dates and destination
- Name and mission of the host organization
- Planned service areas or project
- Total personal fundraising goal
- Deadline for contributions
- Approved donation instructions
- Prayer requests and preparation goals

Recommended letter structure
- Personal opening — connect with the reader before making the request
- The opportunity — explain where, when, and with whom you will serve
- The purpose — describe the host’s ongoing work and your expected role
- The invitation — ask for prayer and, if appropriate, financial support
- The details — provide your goal, deadline, and secure giving instructions
- The close — express gratitude and promise a thoughtful update
Adaptable mission trip support letter
Dear [Name],
I hope you are doing well. I am writing because I have the opportunity to serve with [church or team name] at Misión El Faro in Guatemala from [dates]. El Faro is a Christian mission organization that works alongside communities through healthcare, children’s programs, community development, education, and long-term relationships.
Our team expects to serve through [confirmed project or ministry]. I am preparing not only for the practical work, but also to listen, learn from local leaders, and participate responsibly in ministry that continues throughout the year.
The total amount I need to raise is [amount] by [deadline]. If you would like to support the trip financially, you can give through [approved instructions]. Please use [designation] so the gift is connected with my trip. I would also value prayer for our preparation, the El Faro team, the communities involved, safe travel, and a humble spirit.
Thank you for considering this invitation. I am grateful for your encouragement and will share an update after the trip.
With gratitude, [Your name]

How to personalize the template
Replace every bracketed field and add one or two sentences that explain why this opportunity matters to you. If you have a genuine connection with the reader, mention it naturally.
Do not add an emotional story about a child or family unless you have permission and accurate details. The letter can be compelling without turning another person’s hardship into a fundraising device.
Sending and follow-up
A printed letter can feel more personal, while email makes links and updates easier. Many participants use both. Send the first letter far enough in advance for people to consider the request and for you to follow up without pressure.
One courteous reminder is appropriate. After that, allow the person to decide. Record contributions, send prompt thanks, and provide a report after the trip even to people who supported through prayer rather than money.

Mistakes to avoid
- Using guilt, urgency, or exaggerated promises
- Calling the trip a vacation in one place and a sacrifice in another
- Leaving out the total goal or giving deadline
- Using unapproved tax-deductibility language
- Sending the same impersonal message to everyone
- Failing to thank supporters or report back
- Sharing identifiable stories or photos without permission

