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In short, a nanny cover letter is a one-page letter that tells a family how long you stayed with each previous household, what terms you worked under, and why their particular post fits the work you want next.
Families read these at night, weighing a shortlist of strangers for unsupervised access to their children. For this reason, the letter that works is calm, specific and free of adjectives, and it answers the questions they are too polite to ask first.
Guide to a nanny cover letter
To help, this guide and the corresponding nanny cover letter example will cover:
- First, how to structure the letter, paragraph by paragraph
- Next, why tenure belongs in the first two sentences
- Also, how to write about children without naming anyone
- What changes when you apply through a placement agency
- Finally, the openings that make a family finish a strong file
How to write a nanny cover letter
ParagraphIts jobLength
- OpeningThe post, your level, how long you stayed at each household2 to 3 sentences
- EvidenceOne household, what you ran, one thing you changed4 to 5 sentences
- FitSomething specific from their ad, and the terms you work under3 to 4 sentences
- CloseScreening, certifications, availability, thank you2 sentences
Put tenure in the first two sentences
The first thing a family wants to know is whether you stay. Not whether you love children; everyone applying says that. So open with the arithmetic: "four years with one family, three with the current one." Two numbers, no explanation, and the reader relaxes.
Then add the sentence almost nobody writes: "Both positions were on a written work agreement and a W-2 household payroll, and both families can confirm dates and wages." That says you have been employed properly before, that there is a paper trail, and that you will not ask them to do something informal. For a family whose accountant has just explained what a household employee is, it does more work than a paragraph about your philosophy of care.
A nanny cover letter example you can adapt
Adaptable nanny cover letter example
Dear Ms. Northrop,
I am applying for the full-charge nanny position in East Sacramento that you listed this week. I have seven years in private households: four years with one family in Land Park, and three with my current family of three children aged 2, 6 and 9. Both positions ran on a written work agreement and a W-2 household payroll, and both families can confirm dates, hours and wages.
In my current post I run the children's day end to end while both parents work full time and travel most weeks: two school runs, five weekly activities, all weekday meals and the medical and dental calendar. The household has a tree nut allergy, so I rebuilt the kitchen storage, trained both parents and the weekend sitter on the auto-injector, and filed an allergy action plan at school and at every activity. In three years there has not been a reaction, which is the result that took the most work.
Your listing mentions a newborn arriving in February alongside a four-year-old, and that the family would like the nanny to hold the calendar rather than be handed it. That is the part I am strongest at. I am looking for guaranteed hours, an agreed overtime rate and a written agreement, which your listing suggests is already how the household works.
I am TrustLine registered, hold a Child Development Associate credential and Child Passenger Safety Technician certification, and my pediatric first aid and CPR are current to March 2027. I have a clean California driving record, my own insured vehicle and a valid passport, and could start on four weeks' notice. Thank you for reading this.
Sincerely,
Magdalena Villamar
Openings that work
- Instead of
I am passionate about working with children and have always loved caring for them
UseI have seven years in private households: four years with one family, three with the current one
- Instead of
I am writing to express my interest in your nanny position
UseI am applying for the full-charge nanny position in East Sacramento you listed this week
- Instead of
I am reliable, trustworthy and hardworking
UseBoth positions ran on a written agreement and a W-2 payroll, and both families can confirm dates and wages
- Instead of
I would love to be part of your family
UseYour listing mentions a newborn arriving in February alongside a four-year-old
The right column is checkable. In practice, a family shortlisting five strangers takes a checkable claim over a warm one every time, and finds out about the warmth at the trial day.
Writing about children without naming anyone
Of course, you will want to prove you are good at this, and the proof lives in stories about specific children. However, those stories are not yours to publish. Describe the work, the age and the result, never the child. "A 2-year-old with an expressive language delay" is fine. By contrast, a name, an initial, a school, a diagnosis attached to an identifiable family, or a photograph is not, and a placement agency will pull your file for any of them.
- Instead of
She struggled with her speech until I worked with her
UseRan the home practice program a speech therapist assigned for a 2-year-old, four sessions a week over eight months
- Instead of
The family in Land Park relied on me completely
UseFour years in sole charge for a Land Park household, 45 guaranteed hours a week
- Instead of
I helped a very anxious child
UseTook a five-year-old's school drop-off from 25 minutes to under 5
What changes when you apply through an agency
Meanwhile, agencies read for placement risk: gaps, short tenures, unreachable references, lapsed certifications, and candidates who renegotiate after the trial week. Write so a placement director can close all five in one read. That is why you should give dates that join up, say why each position ended, state that references are released with each family's written permission, and name the terms you want before anyone asks.
Do
- Open with tenure, in years, per household.
- Say the payroll basis and that you worked under a written agreement.
- Name one thing from their listing and answer it.
- State the terms you want, including guaranteed hours and an agreed overtime rate, in the letter rather than after the trial day.
- Close with the screening, the certifications and their expiry, and your notice period.
Don’t
- Do not name the family, the children, their school or their address.
- Do not attach photographs of children you have cared for.
- Do not write "I treat every family like my own family", which reads as a boundary problem rather than a compliment.
- Do not leave a gap unexplained.
- Do not describe yourself as flexible on hours if you are not.
One in six childcare workers is employed by a household
Private households employ 17 percent of childcare workers, behind child daycare services at 29 percent and self-employed workers at 24 percent, in an occupation of 1,010,300 jobs (BLS Occupational Outlook Handbook, Childcare Workers, May 2025).
The same cycle projects employment falling 2 percent between 2025 and 2035, a loss of 19,900 jobs, with about 150,300 openings a year, almost all replacing people who leave childcare altogether (BLS, 2025-35 projections).
Read those together and you have the reason to lead with tenure. The occupation's defining problem is that people do not stay in it, and a letter answering that in its first two sentences is answering the thing the family is actually afraid of.
Length, format and sending it
One page, four paragraphs, 250 to 400 words. PDF unless the portal says otherwise, named for yourself and the post: magdalena-villamar-nanny-cover-letter.pdf.
Address a person. Through an agency the placement director's name is usually on the listing; applying to a family directly, "Dear Hiring Family" is honest and an invented name is not. Use the same dates, hours and certifications as your resume. Our nanny resume example is written with the tenure and terms used here.
Key takeaways
- To start, put tenure per household in the first two sentences, in years.
- Say the payroll basis and that you worked under a written agreement.
- Then give one household, one thing you ran, and one result that took real work.
- In addition, name something specific from their listing and answer it.
- State the terms you want before the trial day, not after it.
- Describe the work and the age, never the child.
- Finally, close with screening, certifications with expiry, and your notice period.
The nanny resume example uses the same story, the same numbers and the same header.
Nanny cover letter questions, answered
How long should a nanny cover letter be?
One page, four paragraphs, 250 to 400 words. A family reads five or six of these in an evening, and length does not read as care. What reads as care is that you answered their listing rather than sending the same letter to eleven households.
Should I mention pay and hours in the cover letter?
Mention the structure, not a number. Saying you want guaranteed hours, an agreed overtime rate and a written agreement is professional, and it filters out posts that will not work for you. Naming a rate before you know the household, the children and the hours is guessing, and it usually guesses low.
Do I need a cover letter if I am applying through an agency?
Yes, and it may matter more. The agency builds a candidate file the family sees before they see you, and your letter is the only part of it in your own voice.
How do I write a nanny cover letter with no nanny experience?
Write the childcare you do have as work: the setting, the age group, the ratio you held, the hours and how long you stayed. A licensed infant room at a 1:4 ratio is genuinely harder than one baby at home, and saying so is fair. Then close on what a first-position candidate can offer: current pediatric first aid and CPR, a completed background screening and a clean driving record.
Should I explain why I left my last family?
Yes, in one clause, factually. "Position ended by agreement when the youngest started full-day school" or "family relocated to Denver" answers it completely. Under IRS Publication 926 for 2026 a nanny is a household employee with a documented wage record, so dates and reasons surface in a reference call anyway. Getting there first buys the reader's trust for the rest of the page.