Phase 04: Build

The Essentials: Build — Childcare, Babysitting & Nanny Business

3 min readUpdated September 2026

"Building" a childcare business is mostly paperwork and safety setup, not product development: a written service agreement, proof of background checks and certifications ready to hand over, and if you're running an in-home daycare, a home that will pass a state inspection. Skipping any of these doesn't just risk a bad hire experience, it can void your liability insurance if something goes wrong, which is the single most expensive mistake in this business.

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The Paperwork Every Arrangement Needs

At minimum, put in writing: the schedule and rate, overtime/holiday pay rules, notice period for either side to end the arrangement, sick day and backup care policy, and what happens if the family cancels a scheduled shift last-minute (many nannies build in a guaranteed-hours clause so a family can't zero out a week with no notice). Also include a medical authorization section listing allergies, medications, and emergency contacts, this is the document a hospital or urgent care will ask for if you show up with a child who isn't yours. If you're a household employee, this contract also needs to match how you're paying taxes; a written 1099 independent contractor agreement doesn't hold up if the IRS looks at how much control the family actually exercises over your schedule and methods.

What a Licensing Inspector Actually Checks

If you're building a licensed in-home daycare, the inspection isn't a formality, inspectors check working smoke detectors and carbon monoxide detectors in every room used for care, a fire escape plan posted and practiced, outlet covers and cabinet locks on anything with cleaning chemicals or medications, a fenced outdoor play area if you claim outdoor time, and square-footage-per-child ratios that vary by state (commonly 35 square feet of usable indoor space per child, sometimes more for infants). Budget $500-1,500 for the physical changes most homes need (detectors, locks, fencing, a second exit if one isn't already usable) before the inspection, separate from any licensing application fee.

Setting Up Payroll Correctly From Day One

If you're hiring anyone, an assistant for a growing daycare, or if you're a family hiring a nanny as a household employer, W-2 nanny payroll (through a service like GTM Payroll Services, HomePay, or SurePayroll) costs $40-75/month and handles federal and state withholding, unemployment insurance, and the year-end W-2. Paying a nanny under the table or misclassifying them as a 1099 contractor is a common shortcut that creates real exposure: back taxes, penalties, and in some states the nanny can later claim unemployment or workers' comp against you retroactively. Set up payroll correctly before the first paycheck, not after a problem surfaces.

Get Your Verification Documents Ready Once, Not Every Time

Build a single folder (physical and digital) with your current CPR/First Aid card, background check results, driver's license and proof of insurance if you transport kids, and two to three reference letters from prior families or employers. Every new family or agency will ask for the same set of documents, having them ready to send instantly, rather than scrambling each time, is a real differentiator that signals professionalism to a parent deciding between candidates.

Choosing the Structure Before You Build the Paperwork

The paperwork above changes depending on which of three structures you're building toward, so lock that decision first. Solo private-hire nanny: lightest paperwork, but you're a household employee subject to nanny tax rules, and the family carries most of the liability. Agency-placed nanny: the agency handles vetting and often payroll, but takes a cut (either a placement fee or an ongoing percentage), and you have less control over which families you're matched with. Licensed in-home daycare: heaviest paperwork and physical setup cost, but the highest revenue ceiling since you're billing 4-6 families simultaneously instead of one. Most people underestimate how much the licensing route front-loads cost and delay, budget 2-3 months longer than you'd expect between deciding to license and enrolling your first child. Whichever structure you pick, write down the decision and the reason for it before you buy insurance or sign a lease, switching from solo nanny to licensed daycare six months in means redoing your contracts, your insurance policy, and often your home setup from scratch, so it is worth an extra week of comparison up front. Most nannies who skip this step end up rebuilding their entire paperwork and insurance setup within the first year anyway, at a real cost in time and money.

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FREQUENTLY ASKED QUESTIONS

Do I need a written contract for informal babysitting, or just for full-time nanny work?

Even occasional babysitting benefits from a one-page agreement covering rate, cancellation notice, and emergency contact/medical authorization. Full-time nanny and daycare arrangements need a more complete contract because the dollar amounts and legal classification (employee vs. contractor) are higher-stakes.

What's the biggest home-safety item people forget before a licensing inspection?

Carbon monoxide detectors are the most commonly missed item, many homes have smoke detectors but not CO detectors in every room used for childcare, and most state licensing checklists require both. Check your state's specific room-by-room requirement, not just "one per floor."

Should I use a template contract or pay a lawyer?

A reputable template (from a nanny agency's resources, the International Nanny Association, or a state childcare association) is fine for a solo nanny or sitter arrangement. If you're opening a licensed daycare with enrollment contracts covering multiple unrelated families, a one-time attorney review ($200-400) is worth it to make sure your liability waivers actually hold up.

Is nanny payroll really necessary for a part-time arrangement?

Yes if the nanny earns more than the IRS household employee threshold in a calendar year (a figure that's adjusted periodically, check the current amount, historically around $2,700). Below that threshold there's no employment tax obligation, but most part-time arrangements exceed it faster than families expect.

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Phase 2.1Design your minimum viable offerPhase 2.2Source, make, or build your productPhase 2.3Test with real users before you invest