To split additional income for nanny 50:50?

[ConvenientTruth]

Would appreciate views on what is 'fair'.

We are Family A with full time nanny.

Family B want to share our nanny part time and happy to pay £6 per hour gross.

I am trying to figure out what would be a fair amount of this for us to keep vs. pass on to the nanny.

1. We split it 50:50, with the nanny getting a payrise of £3ph gross and me getting a reduction on the cost of her by £3ph

1. We recognise that the nanny is doing most of the work here (!) and give her £4ph, me getting reduction of £2ph

1. We recognise that the quality of what I am getting (1:1 attention for my child) is now less than what I originally paid for, and therefore I get a bigger share e.g. £4ph reduction. She gets £2ph increase

Nanny is happy about the idea of sharing and doesn't like talking about money so will likely accept whatever I suggest. I don't want to screw her over but neither do I want to be a mug!

Then I would give her a 20-25% increase for the time when the other child is there and keep the rest, assuming of course that that's enough for you to still be happy to share.

Have you asked her if she wants to do a nanny share arrangement? As it can be a lot trickier managing two kids schedules, routines etc not to mention parenting styles.

Jay - if the other family end the arrangement then the nanny won't be doing the extra work anymore so I would expect her wages to decrease. Would you not think that was fair?

Logically, that works. Realistically, she'll be used to her new wage and she'd be very unlikely to stick around if her wage goes down. Even if she's doing less work, she'll feel like she's underpaid.