Do you have a copy of the original Trust Deed paperwork, smit0310?  If so, you should check what the Form 1B says as this is the formal agreement regarding what has to be paid in lieu of the equity in your home.  It is signed at the same time as you sign the Trust Deed normally and cannot be amended afterwards.

The amount requiring to be paid has to be stated on this form, so it follows that this should be a fixed amount that cannot change - it certainly is for any trust deeds I set up.  Therefore if you can afford to pay more then it should be possible to end the Trust Deed more quickly. 

Having said that, perhaps other firms have some clever form of wording they insert onto these forms to ensure that changes in circumstances are taken into account for equity payments.  I am not aware of this being the case, but would recommend you find the Form 1B you signed to be 100% sure. Your trustee firm should be able to provide you with a copy if you can't find it.

@kevin-mapstone thank you so much for your advice. I have checked form 1b and it gives me a specific amount that I need to pay by September 2025 for the equity on my property. So do you think if I can pay this off earlier then I could do that? And also I wont be subject to an annual review this year so if I do earn more they can’t ask me for more contribution? Thanks

That's right.  If you can find the money from somewhere then you could pay off the amount needed and the Trust Deed should be able to be closed down.

The requirement to account for your income/outgoings and pay whatever you can reasonably afford should end after the first 4 years.