Fostering a Pet: Signs You're Ready and How to Start

Fostering means caring for a shelter or rescue pet in your home until they're adopted. It frees up space in crowded shelters, gives the pet a calmer place to recover and helps the rescue learn what kind of home the pet needs.

It's rewarding, but it's real work. Here's what fostering involves, the signs you're ready and how to get started.

Key Takeaways

• Foster caregivers handle daily care, such as feeding, exercise, basic training and any medications
• Many rescues provide supplies and vet care, but programs vary, so ask what's covered
• Fosters can last a weekend or several weeks, depending on the program and the pet
• Keep a foster pet separate from your own pets at first
• Saying goodbye is part of the job, and it makes room to save another pet

What Fostering Involves

As a foster caregiver, your main jobs are feeding and daily care, giving medications if the pet needs them, basic training and exercise, and, maybe most importantly, providing stability and patience.

Pets go to foster homes for different reasons. Some need time to decompress after the shelter. Others are recovering from illness or surgery, or are kittens and puppies who need time to grow before they're adopted. Some programs train fosters to bottle-feed newborns or care for pets in medical treatment.

Who Pays for What?

Many organizations cover the big costs. The ASPCA, for example, says fostering with its program is free, with food, supplies and veterinary care provided. Other programs supply some items, like food, crates or litter, and expect fosters to cover the rest. Before you commit, ask the rescue exactly what they provide and how vet visits work.

Signs You'd Make a Great Foster

You can handle a sudden vet visit

Most foster pets are healthy, but some come from rough situations and may get sick after arriving. Good fosters notice changes quickly, follow the rescue's care instructions and can make a vet trip when the rescue asks.

You have time and flexibility

Foster pets need routine, exercise and attention, and some need medication on a schedule or extra help settling in. You may also be asked to bring your foster to adoption events or meetings with potential adopters.

You can say goodbye

Letting a foster go to their new family is the goal, even when it's hard. The bond you built is what prepared them for that home. Many adopters are happy to send updates if you ask, and each goodbye opens space for the next pet who needs you.

How to Get Started

1. Find a shelter or rescue near you. You can find shelters and rescues on WeRescue, and many list their foster programs on their own websites.
2. Apply. Most programs start with a questionnaire about your home, schedule, other pets and experience.
3. Attend an orientation or training. Many rescues teach basic care, feeding, medication and behavior before your first foster.
4. Start small if you're unsure. Some programs offer short-term or weekend fosters, which are a great way to try it out.

Questions to ask the rescue

• What supplies and veterinary care do you provide?
• How long do fosters usually last?
• Who do I call in an emergency, including nights and weekends?
• How do adoption events and meetings with adopters work?
• What happens if the foster isn't working out?

Fostering With Your Own Pets or Kids

Keep your foster pet separate from your own pets at first, and introduce them slowly with the rescue's guidance. Our multi-pet home guide walks through introductions. Fostering can also be a great way to teach children compassion and how to read animal behavior, with adults supervising.

What If I Want to Adopt My Foster?

It happens often enough that it has a nickname: a "foster fail." Many rescues welcome foster caregivers as adopters, since you already know the pet well. Just tell the rescue early, and keep in mind that adopting means you may not have room for the next foster.

Frequently Asked Questions

Does it cost money to foster a pet?

Often very little. Many rescues provide food, supplies and vet care, but it varies, so ask before you start.

How long do you foster a pet?

Anywhere from a weekend to several weeks or longer, depending on the program and the pet's needs.

Can I foster if I have other pets?

Usually, yes. Keep the foster separate at first and introduce them slowly, following the rescue's advice.

Can I adopt the pet I'm fostering?

In many programs, yes. Let the rescue know as soon as you're considering it.

Ready to Foster?

Fostering is one of the most direct ways to save a pet's life. Learn more about the hidden joys of fostering, or explore other ways to help in our volunteer guide.

Find Your Perfect Pet Match

Sources: Humane World for Animals, Pet Fostering 101, ASPCA, What Does It Mean to Be an Animal Foster Caregiver?

This guide was originally written by Jennifer Martin and was fully rewritten and updated by the WeRescue team in October 2026.

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• Animal Shelter Volunteer Guide: Start Making a Difference Today
• The Adoption Gap Is a Data Problem. WeRescue Has Spent 11 Years Solving It.
• Post-Adoption Support: When & How to Contact Your Rescue Shelter
• Bonded Pair Adoption: Why Two Pets Are Better Than One