Yes, you should definitely have a written agreement, if nothing else it will clarify what it is you have agreed on. The BHS have a sample loan agreement which you should be able to adapt to your needs.
You should specify: - what you are allowed to do with the pony - how you can end the agreement - how the owner can end the agreement - who is responsible for public liability insurance - who is responsible for vet fees/insurance and anything else you think is relevant.
I have just started a new pony share 'on trial' until the end of the month.
It is only an informal share, I am going to ride 1 day per week and give the owner a financial contribution in return. The pony continues to live in the same place and will be ridden by the owner on other days.
Would you expect to have a written agreement in place for this kind of share? Or is that over the top?
I am just a bit concerned if something happened (for example the pony got injured) on my day would I be responsible for vets fees etc?
The owner insures the pony, and I have got my own personal accident cover insurance (BHS cover and income protection).