Can You Sell a Used Car Seat

Yes, you can sell a used car seat, but it’s not always safe or legal. Before listing it online or passing it on, check its history, expiration date, and condition—because your child’s safety matters most.

So, you’ve got a used car seat sitting in the garage, and your little one has outgrown it. You’re thinking, “Can I sell this?” It’s a fair question—car seats can be expensive, and passing one along sounds like a smart way to recycle and help another family save money. But before you snap a photo and post it online, there’s something important to know: selling a used car seat isn’t as simple as selling a stroller or a high chair.

Car seats are life-saving devices. They’re engineered to protect children in the event of a crash, and that means they come with strict safety standards. Unlike toys or clothing, a car seat’s value isn’t just in its appearance—it’s in its ability to keep a child safe. That’s why selling a used one requires extra care, honesty, and attention to detail. While it’s legal in most states and countries to sell a used car seat, doing so responsibly means checking its condition, history, and compliance with current safety guidelines.

In this guide, we’ll walk you through everything you need to know about selling a used car seat—from understanding expiration dates to knowing what to disclose to buyers. We’ll also explore safer alternatives like donating or recycling, and help you decide whether selling is the right choice for your family. Whether you’re decluttering, upgrading, or trying to recoup some costs, this article will help you make a smart, safe decision.

Key Takeaways

• Selling used car seats is allowed in most places, but safety should come first. Always inspect for damage, recalls, and expiration before resale.
• Car seats expire—usually 6 to 10 years from manufacture. Check the label underneath or on the side to find the date.
• Never sell a car seat involved in a crash. Even minor accidents can weaken internal structures, making it unsafe.
• Include all original parts and instructions. Missing harnesses, bases, or manuals reduce safety and resale value.
• Be transparent with buyers about the seat’s history. Honesty builds trust and protects children.
• Consider donating instead of selling. Many charities and shelters accept gently used seats that meet safety standards.
• Online marketplaces have rules. Sites like Facebook Marketplace and eBay allow used car seat sales but may remove listings that violate policies.

Is It Legal to Sell a Used Car Seat?

The short answer? Yes, in most places, it’s legal to sell a used car seat. But “legal” doesn’t always mean “advisable.” Laws vary by state and country, and while there’s no federal ban on selling used car seats in the U.S., some states have specific regulations. For example, California requires that any car seat sold or given away must include a notice about expiration dates and crash history. Other states may not have explicit laws, but consumer protection agencies often discourage the sale of used safety equipment due to liability concerns.

That said, platforms like Facebook Marketplace, Craigslist, and eBay do allow listings for used car seats—though they may remove them if they violate community guidelines or appear unsafe. These sites typically require sellers to disclose key information, such as whether the seat was in an accident or has been recalled. Some even recommend including the manufacture date and model number in the listing.

The bigger issue isn’t legality—it’s ethics. When you sell a car seat, you’re potentially putting a child’s safety in someone else’s hands. If the seat is damaged, expired, or improperly installed, the consequences could be severe. That’s why many safety experts, including those at the National Highway Traffic Safety Administration (NHTSA), recommend against selling used car seats unless you’re absolutely certain they’re safe.

What the Experts Say

Organizations like the American Academy of Pediatrics (AAP) and Safe Kids Worldwide advise parents to avoid buying or selling used car seats unless they can verify the seat’s full history. They emphasize that even minor crashes can compromise a seat’s integrity, and that expiration dates exist for a reason—materials degrade over time, reducing effectiveness.

In short: selling a used car seat is legal, but it comes with serious responsibility. If you choose to sell, do it with transparency and caution.

Why Car Seats Expire (And Why It Matters)

You might be surprised to learn that car seats don’t last forever. Most expire between 6 and 10 years from the date of manufacture. That date is usually printed on a label on the bottom or side of the seat. If you can’t find it, check the model number online—many manufacturers provide expiration guidelines based on the production date.

But why do they expire? It’s not just a marketing tactic. Over time, the materials in a car seat—especially the plastic shell and harness webbing—can break down due to heat, sunlight, and regular use. This degradation isn’t always visible. A seat might look fine on the outside but could fail in a crash because the internal structure has weakened.

For example, imagine a car seat that’s been stored in a hot garage for five years. The plastic may have become brittle, and the harness straps could lose their strength. In a collision, the seat might crack or the straps could snap, putting the child at risk. That’s why expiration dates are based on real engineering data, not arbitrary timelines.

How to Find the Expiration Date

To check your seat’s expiration:

• Look for a label on the bottom or side of the seat.
• It should include the manufacture date (e.g., “Manufactured: 03/2018”).
• Add 6 to 10 years depending on the brand (check the manual or website).
• If there’s no label, contact the manufacturer with the model number.

Some brands, like Graco and Chicco, have online tools where you can enter your seat’s info to confirm its expiration. Never sell a seat that’s past its expiration date—even if it looks new.

When You Should NOT Sell a Used Car Seat

Not all used car seats are suitable for resale. In fact, there are several situations where selling one could be dangerous—or even illegal.

First and foremost: never sell a car seat that was involved in a crash. Even if the damage isn’t visible, the internal structure may have been compromised. The NHTSA recommends replacing any car seat after a moderate or severe crash. Some manufacturers even say to replace after any crash, no matter how minor.

Other red flags include:

• The seat has been recalled and not repaired.
• Parts are missing or damaged (e.g., cracked shell, frayed straps).
• The harness doesn’t adjust smoothly or lock properly.
• The seat has been stored in extreme temperatures (like a hot attic or cold basement).
• You don’t have the original manual or instructions.

If any of these apply, the seat isn’t safe to sell—or use. Instead, consider recycling or disposing of it properly.

Recalls and How to Check

Recalls happen more often than you might think. Manufacturers issue them when a defect is discovered that could affect safety. To check if your seat has been recalled:

• Visit the NHTSA website and use their recall lookup tool.
• Enter the seat’s make, model, and year.
• Sign up for recall alerts to stay informed.

If your seat is under recall, follow the manufacturer’s instructions to get it repaired or replaced. Never sell a recalled seat unless the issue has been fully resolved.

How to Safely Sell a Used Car Seat

If your car seat passes all the safety checks, selling it can be a great way to help another family. But to do it right, follow these steps:

1. Clean It Thoroughly

Start by giving the seat a deep clean. Remove the cover (if washable) and machine wash it according to the manufacturer’s instructions. Wipe down the plastic parts with a mild soap and water solution. Avoid harsh chemicals that could damage the materials or leave harmful residues.

Let everything dry completely before reassembling. A clean seat not only looks better but also shows buyers you’ve taken care of it.

2. Gather All Parts and Documentation

Make sure you have:

• The seat itself
• All harness straps and buckles
• The base (if applicable)
• The original manual
• Any registration cards or warranty info

Missing parts can make the seat unsafe or unusable. If you’ve lost the manual, most manufacturers offer free digital copies on their websites.

3. Disclose Everything Honestly

When listing the seat, be upfront about:

• The manufacture and expiration dates
• Whether it was ever in a crash
• Any recalls and whether they were addressed
• Signs of wear or damage
• How it was stored (e.g., “kept indoors, never in extreme heat”)

Honesty builds trust and protects you from liability. A buyer who knows the full history is more likely to use the seat safely.

4. Price It Fairly

Used car seats typically sell for 30% to 50% of their original price, depending on age and condition. Check similar listings on Facebook Marketplace or eBay to gauge the market. Avoid overpricing—buyers are often wary of used safety items and will compare options.

5. Choose the Right Platform

Popular options include:

• Facebook Marketplace: Great for local sales. You can meet buyers in person and show them the seat.
• Craigslist: Another local option, but be cautious of scams.
• eBay: Allows shipping, but check their policies—some safety items have restrictions.
• Local parenting groups: Facebook groups for moms, dads, or secondhand baby gear can be trustworthy communities.

Avoid shipping the seat unless you’re certain it will arrive safely. Car seats can be damaged in transit, especially if not packed properly.

6. Meet Safely

If meeting in person, choose a public place like a police station parking lot or mall. Bring a friend if possible. Let the buyer inspect the seat and ask questions. Offer to help them install it correctly—many parents appreciate this extra step.

Alternatives to Selling: Donating or Recycling

If you’re unsure about selling, consider donating or recycling your used car seat. These options keep the seat out of landfills and help families in need—without the risks of resale.

Donating Your Car Seat

Many charities, shelters, and nonprofits accept gently used car seats. Examples include:

• Local women’s shelters
• Homeless family shelters
• Children’s hospitals
• Nonprofits like Safe Kids Worldwide or local car seat distribution programs

Before donating, call ahead to confirm they accept used seats and ask about their requirements. Some only take seats less than 5 years old or in like-new condition.

Recycling Your Car Seat

Car seats are made of plastic, metal, and fabric—materials that can be recycled, but not in your regular bin. Many retailers and organizations offer recycling programs:

• Target: Offers a car seat recycling program in-store (check availability).
• Walmart: Some locations participate in recycling events.
• Local waste management: Some cities have special collection days for hard-to-recycle items.
• Terracycle: Partners with brands like Britax to recycle car seats (mail-in program).

Recycling ensures the materials are reused responsibly and keeps the seat from ending up in a landfill.

Tips for Buyers: What to Look For

If you’re on the other side—considering buying a used car seat—here’s what to watch for:

Ask the Right Questions

Before purchasing, ask:

• “Was this seat ever in a crash?”
• “Do you have the manual and all parts?”
• “What’s the manufacture date?”
• “Has it been recalled?”
• “How was it stored?”

A responsible seller will answer honestly and provide documentation.

Inspect Before You Buy

Check for:

• Cracks or splits in the plastic shell
• Frayed or twisted harness straps
• Sticky or broken buckles
• Missing labels or expiration dates
• Signs of mold or strong odors

If anything looks off, walk away. It’s not worth the risk.

Install It Correctly

Even the best car seat won’t protect a child if it’s installed wrong. Use the manual and consider getting a free inspection from a certified Child Passenger Safety Technician. Many fire stations, police departments, and hospitals offer this service.

Final Thoughts: Is Selling Worth It?

Selling a used car seat can be a practical way to declutter and help another family. But it’s not a decision to take lightly. The safety of a child is on the line, and that means doing your due diligence.

If your seat is expired, damaged, or has been in a crash, don’t sell it. Recycle it or dispose of it safely. If it’s in good condition and you’re transparent with buyers, selling can be a responsible choice—especially if you include all parts and instructions.

But remember: the goal isn’t just to make a sale. It’s to ensure that the next child who uses that seat is as safe as possible. When in doubt, donate or recycle. And always prioritize safety over savings.

At the end of the day, a used car seat isn’t just a product—it’s a promise. A promise to protect. And that’s something worth taking seriously.

Frequently Asked Questions

Can you legally sell a used car seat?

Yes, in most places it is legal to sell a used car seat. However, some states have specific rules, and safety experts recommend extreme caution. Always check local laws and disclose the seat’s full history to buyers.

How long do car seats last before they expire?

Most car seats expire 6 to 10 years from the date of manufacture. The expiration date is usually printed on a label on the seat. Never use or sell a seat past its expiration date.

Can I sell a car seat that was in a minor accident?

No. Even minor crashes can damage internal structures. The NHTSA recommends replacing any car seat involved in a crash, regardless of visible damage. Selling such a seat could put a child at risk.

What should I include when selling a used car seat?

Include the seat, all harness parts, the base (if applicable), the original manual, and any registration info. Also disclose the manufacture date, crash history, and any recalls.

Where can I donate a used car seat?

Many shelters, charities, and children’s hospitals accept gently used car seats. Call ahead to confirm they accept used seats and check their age and condition requirements.

How do I recycle an old car seat?

Retailers like Target and organizations like Terracycle offer car seat recycling programs. Some cities also host special collection events. Check local options to recycle responsibly.