You can bet that most childminders who don't charge for holidays will have factored these days into their rates from day 1
Before I started childminding I wrote a business plan which included working out all of my costs so I knew how much I would need to charge per hour to make the business viable. I didn't charge for my holidays but those four weeks of zero pay plus a week at Christmas were factored into my overall costs so when I worked out my hourly rate I knew was charging enough to cover for them.
They do very long days, have to plan activities and keep records in line with EYFS, full house cleans everyday etc. It’s really not as simple as people make out.
Childminders basically do everything a nursery does in terms of early education, record keeping, hygiene standards, etc.
What I’m struggling to reconcile is that (in theory) if you have to pay your CM holidays, and then you will have your own annual leave (at least 4 weeks after BHs) then the CM is potentially getting paid for 8 weeks where she has no/less children.
At the start of the year I used to inform parents of when I would be taking my holidays that year so they had plenty of notice of when I'd be closed. Some of them would book their own leave for the same dates or would book different dates but the rule was the same regardless - if I was open then they were charged whether they sent their child or not, if I was closed then they weren't (and the cost of being closed was already factored into my overall hourly rate as explained above). There were a few exceptions to this explained in the contract but they were for specific circumstances (e.g., serious breach of contract on the parents side resulting in immediate withdrawal of care with four weeks notice still payable)
YABU for entering into a professional relationship without a contract. So is your CM. There are likely to be other, more serious fallings-out in future if this isn't sorted. You need a contract.
Yes to this and everyone else saying to get a contract. A contract sets out exactly what you can both expect from the relationship and gives you a point of reference to refer back to when issues like this arise.
Also check that she is properly qualified and registered. The penalty for working as an unregistered childminder is an unlimited fine and/or imprisonment, HMRC also take a dim view of it and if you've claimed any childcare element of Tax Credits they can ask you to pay it back as only registered childcare qualifies you for these payments.