Grandparents are generous by nature, and scammers and fine print count on it. A little planning protects your savings and keeps help flowing to the kids who need it. These are the mistakes that quietly cost families money, tax breaks, or benefits. Most are easy to fix with a small tweak. Share this with your crew so everyone plays by the same rules.
1. Blowing Past the Gift Tax Rules
Big checks feel great until paperwork shows up. The IRS lets you give up to a $19,000 annual exclusion per person in 2025, and it’s per recipient, not your total giving for the year. Gifts above that may require filing Form 709. Read the exceptions before you write the check so you don’t create a headache later.
2. Paying the School or Hospital the Wrong Way
Covering tuition or a medical bill? Pay the provider directly. When you send money straight to the school or hospital, those payments can be excluded from gift tax if they meet the rules. If you route the cash through a parent or student first, it may count as a gift and burn your exclusion.
3. Treating a Grandparent 529 Like a Parent 529
The new FAFSA made grandparent‑owned 529 plans easier to use because most cash support from relatives isn’t counted as student income. You can confirm the change in the Department of Education’s FAFSA Simplification Q&A. Some private colleges that use the CSS Profile may still ask about these accounts, so check each school’s policy.
4. Triggering the Kiddie Tax
Unearned income in a child’s name can be taxed at the parents’ rate once it passes an annual threshold. That’s the kiddie tax. If you’re gifting investments, consider whether a 529 plan or holding assets in your name until college makes more sense. Don’t forget state taxes, which can differ.
5. Co‑Signing a Private Student Loan Without an Exit
Co‑signers are fully on the hook if payments stop, and many lenders rarely grant releases. The CFPB explains the risks of co‑signing, including damage to your credit and collection if the borrower defaults. If you still want to help, compare federal loans first and set a written backup plan.
6. Falling for the “Grandparent” Scam
Fraudsters pose as a grandchild in trouble and push you to pay fast with gift cards, wire transfers, or crypto. Slow down, call a trusted number, and verify. The FTC’s family‑emergency scam guidance is clear: urgency is the red flag.
7. Opening a UTMA Without Realizing When Control Flips
Custodial accounts (UTMA/UGMA) transfer to the child at your state’s age of majority. That’s great for responsible teens, not so great for impulse buys. If control matters, consider keeping savings in your name or using a 529 instead. Set expectations early so everyone knows the plan.
8. Accidentally Cutting a Loved One’s SSI
Cash gifts to someone on Supplemental Security Income can reduce their monthly benefit. In some cases. But, paying for certain needs directly can avoid those problems. Review SSA’s guidance on what counts as income before you give, and ask the family which support won’t count against benefits.
9. Skipping ABLE Accounts for a Disabled Grandchild
ABLE accounts allow eligible people with disabilities to save for qualified expenses without losing SSI in many cases. Up to $100,000 is disregarded for SSI resource limits. Coordinate with parents so contributions don’t clash with other benefits.
10. Hiring a Regular Sitter Without “Nanny Tax” Basics
If a caregiver works in your home and you pay over the annual threshold, you’re a household employer. That can mean withholding and paying Social Security and Medicare taxes. The IRS’s Topic 756 on household employees lists the current threshold and reporting steps so you don’t get hit with penalties.
11. Making a 0% Family Loan
Interest‑free loans to family can have tax surprises. Federal law can impute interest on certain below‑market loans and treat it as a gift. Check the rules in 26 U.S. Code § 7872 before you write a “no‑interest” IOU, or put a simple rate in writing.
12. Overfunding a 529 Without a Spending Plan
Non‑qualified withdrawals can trigger taxes and an extra penalty on the earnings. Keep receipts, track qualified expenses, and match withdrawals in the same tax year as costs. If you expect leftovers, look at changing beneficiaries or using allowed rollover options.
13. Claiming a Grandchild as a Dependent Without Meeting Tests
To claim a grandchild, you generally must meet relationship, residency, and support tests. Living with you more than half the year is a big one. Read the IRS rules before you file to avoid amendments. Keep school and medical records that prove residency if needed.
14. Giving Cash When Timing Would Do More Good
A big gift during junior year might reduce aid at some schools even if FAFSA doesn’t count it. Ask parents about application timelines, school policies, and how funds are reported. Spacing support or paying colleges directly can stretch your help farther.
15. Not Writing Down Family Money Agreements
Small “I’ll pay you back later” promises can sour relationships. If you’re helping with a car, rent, or tuition gap, write a plain‑English note: who pays what, when, and what happens if plans change. Clarity protects everyone and keeps holidays friendly.
