Babysitter Tax Calculator
Estimate whether babysitting, nannying or casual childcare income may need to be declared, and how much Income Tax and self-employed National Insurance could be due. It handles the GBP 1,000 trading allowance, compares it with actual expenses, and warns when the work sounds more like employment than casual self-employment.
Estimate babysitting tax
Use annual figures. If you babysit occasionally for several families, start with self-employed. If you work fixed hours for one household, choose nanny/employee-style work.
Only costs wholly for the childcare work. Do not include personal spending.
Salary, pension, other self-employed profit or taxable income before this babysitting profit.
Trading allowance
GBP 1,000
Can cover casual services such as babysitting if gross trading income is within the rules.
Self-employed NI
6% / 2%
Class 4 applies above GBP 12,570 profits, with the lower 2% rate above GBP 50,270.
2026 minimum wage
GBP 12.71
For workers aged 21 and over. Employee/nanny arrangements must consider minimum wage.
Babysitting income is not always taxed the same way
A few evening babysitting jobs for neighbours is usually very different from being a nanny who works fixed hours for one household. The first may be casual self-employed income. The second can look much more like employment, especially where the family controls your hours, tasks and where the work is done.
This calculator gives a tax estimate for the self-employed route because that is the most common question: "I earned some money babysitting, do I need to pay tax?" It also gives a strong warning if the pattern you enter sounds like employee or nanny work, because the household may need to check PAYE, minimum wage, holiday pay and pension duties.
For small casual income, the GBP 1,000 trading allowance is the key number. If your gross babysitting income is GBP 1,000 or less, GOV.UK says you may not need to tell HMRC, unless another rule means you must file a return. Once gross income is over GBP 1,000, you normally need to declare it and choose between deducting actual expenses or using the trading allowance.
| Pattern | Likely action |
|---|---|
| Occasional babysitting under GBP 1,000 gross | Often no HMRC declaration needed |
| Babysitting over GBP 1,000 gross | Usually register or include on Self Assessment |
| Fixed-hours nanny for one household | Check employment status and PAYE |
How this babysitter tax calculator works
Inputs used
- Tax year, because minimum wage, Class 2 NI and Scottish tax bands can change each year.
- Babysitting or nanny income before any expenses.
- Allowable business expenses if treating the work as self-employed.
- Other taxable income, used to work out the marginal Income Tax rate on the babysitting profit.
- Work pattern, hours worked and age band for employment-status and minimum-wage warnings.
Calculation method
- Compare actual expenses with the GBP 1,000 trading allowance when the user asks to compare both.
- Choose the deduction that gives the lower taxable babysitting profit, without letting profit fall below zero.
- Add taxable babysitting profit on top of other taxable income and calculate the extra Income Tax due.
- Calculate Class 4 National Insurance on self-employed profits above GBP 12,570, using 6% up to GBP 50,270 and 2% above that.
- Show whether gross income is within or above the GBP 1,000 trading allowance reporting trigger.
- Flag nanny-style work and hourly pay below the relevant National Minimum Wage rate as employment-risk warnings.
Assumptions
- The calculator assumes the babysitting work is being estimated as sole-trader/self-employed income unless the result warns otherwise.
- Other income is treated as taxable non-savings income before this babysitting profit.
- Expenses entered are assumed to be allowable, wholly business-related costs.
- The calculator uses UK main Income Tax bands for England, Wales and Northern Ireland, and Scottish earned-income bands when Scotland is selected.
What this does not cover
- It does not decide employment status. Use HMRC CEST, the employment-status section below, or professional advice if the arrangement is regular or nanny-like.
- It does not calculate employer PAYE, employer National Insurance, auto-enrolment duties, holiday pay or sick pay for households employing a nanny. Use the Take-Home Pay Calculator for the worker's own net pay, and the True Cost of an Employee Calculator for employer-cost checks.
- It does not include student loans, Universal Credit, childcare benefits, pension relief, tax codes or payments on account. Use the linked calculators for those separate checks.
Worked example
Say Maya works in a shop and earns GBP 18,000 a year. She also babysits for a few local families at weekends and receives GBP 2,500 during 2026/27. She spends GBP 300 on travel and small business costs.
Her gross babysitting income is over GBP 1,000, so she should expect to tell HMRC. If she claims actual expenses, taxable babysitting profit is GBP 2,200. If she uses the trading allowance, taxable profit falls to GBP 1,500, so the trading allowance is better in this simple example.
Because her other income has already used the Personal Allowance, most or all of that GBP 1,500 sits in the basic-rate band. The extra Income Tax estimate is around GBP 300. There is no Class 4 NI on that small babysitting profit because self-employed profits are below GBP 12,570.
Common expenses and records
For casual babysitting, expenses are often modest: travel between jobs, advertising, a proportion of phone costs, public liability insurance, first-aid training, booking-platform fees or accountancy help if the work becomes regular. The test is whether the cost is allowable for the business, not whether it was merely useful in life generally.
Keep simple records even if the amounts are small. A spreadsheet with dates, families, amounts paid and expenses is far better than trying to reconstruct everything next January. GOV.UK says you must keep records of trading-allowance income too.
If expenses are less than GBP 1,000, the trading allowance often gives a lower taxable profit. If expenses are more than GBP 1,000, actual expenses may be better. You cannot use both against the same babysitting trade, so the calculator compares the two routes.
Employee, worker or self-employed?
Casual babysitter
Several families, ad hoc evenings, your own availability and no guarantee of work generally looks more like casual trading income.
Regular childminder
Regular paid childcare can be self-employed, but there may be registration, safeguarding and insurance duties beyond tax.
Nanny for one household
Fixed hours, household control and ongoing work can point towards employment. Parents may need payroll advice.
This distinction matters. If a family employs a nanny, calling the nanny "self-employed" does not automatically make it true for tax or employment law. GOV.UK says employers must work out worker status, and HMRC provides the CEST tool to help with tax status. That is why this calculator gives a warning rather than pretending a single button can decide employment status.
Babysitter tax FAQs
Do teenage babysitters pay tax?
Is babysitting self-employed?
What expenses can I claim?
Do parents need to run payroll for a nanny?
When do I register for Self Assessment?
Official sources
Last verified: May 9 2026. Calculations are estimates based on the published rules and assumptions shown on this page.
- GOV.UK trading allowance - GBP 1,000 trading allowance, casual services including babysitting, full relief and partial relief rules
- GOV.UK register for Self Assessment - 5 October registration deadline, record-keeping and tax-return preparation
- GOV.UK employment status: employee - employment indicators and warning that tax status and employment-law status can differ
- GOV.UK Check Employment Status for Tax - HMRC CEST tool for employed versus self-employed status for tax purposes
- GOV.UK National Minimum Wage rates - current hourly minimum wage rates by age and apprentice status
- GOV.UK Income Tax rates and allowances - Personal Allowance, basic-rate, higher-rate and additional-rate bands
- GOV.UK Scottish Income Tax - Scottish earned-income bands used when Scotland is selected
- GOV.UK self-employed National Insurance rates - Class 2 and Class 4 National Insurance thresholds and rates for 2025/26 and 2026/27
- GOV.UK self-employed expenses - allowable business expenses and the rule that you cannot claim expenses as well as the trading allowance