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Every HarborPlain guide in one place — plainly-explained articles on insurance, money, legal, and health decisions for new and expecting parents.
Can You Use a 529 Plan for K-12 Tuition? The 2026 Rules
Can you use a 529 plan for K-12 tuition? Yes, up to $20,000 per year in 2026 under new federal rules, but state tax conformity and compounding trade-offs matter.
Read guide →MoneyUTMA vs 529 for Grandparents: Which Gift Is Better?
UTMA vs 529 for grandparents in 2026: how each affects financial aid, taxes, control, and gifting, plus the FAFSA change that reshaped the grandparent 529.
Read guide →MoneyHSA vs FSA for New Parents: Which One Fits a Baby Year?
HSA vs FSA for new parents in 2026: how the three accounts differ, which you can hold together, the childcare FSA jump to $7,500, and how to choose for a baby year.
Read guide →Money529 Plan for a Newborn: Where to Start
How to start a 529 plan for a newborn: opening before the SSN arrives, picking the right state plan, how much to begin with, and what the money can pay for.
Read guide →LegalTemporary Guardianship Documents for a Child: A Plain Guide
The temporary guardianship documents that let another adult care for your child for a set time: which need a court, what they authorize, and how long they last.
Read guide →LegalPower of Attorney for a Child Form: What It Does and Its Limits
A power of attorney for a child form lets a parent delegate caregiving authority without court. Here is what it covers, how long it lasts, and where its limits are.
Read guide →LegalGuardianship vs Custody: What's the Difference?
Guardianship vs custody explained: who each involves, which court decides, whether parental rights end, and when a new parent needs one rather than the other.
Read guide →HealthHow Much Does Formula Cost Per Month? (2026 Calculator)
Baby formula runs about $70 to $410 a month for standard types, more for specialty. Use the calculator to get your cost per month, per year, and per ounce.
Read guide →HealthHow Much Does a Newborn Cost in the First Month?
A newborn's first month runs about $1,500 to $8,000, set mostly by your birth bill and how much gear you buy new. See three sample budgets and the traps.
Read guide →MoneyDoes Having a Baby Increase My HSA Contribution Limit?
Having a baby can raise your HSA contribution limit by moving you to family coverage. Here is how the mid-year proration and last-month rule really work.
Read guide →HealthHow Many Diapers Do You Need in Baby's First Year?
How many diapers a baby needs in the first year (about 3,000), what they really cost, and why you should not overstock newborn size before birth.
Read guide →InsuranceLife Insurance for Stay-at-Home Dads: How Much You Need
Stay-at-home dads need life insurance too. Learn how much coverage fits your family, which policy type to buy, and how to sidestep the most common mistake.
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