Hi Mustachians,

I am still fairly new to the forums but after reading so much good advice, particularly amongst Australians, I'd like to ask a question.

My partner and I will both receive a defined benefit pension at 55. This will be paid the rest of our lives. However, we want to retire significantly earlier than 55, so need to figure out how much we need outside of super to do so.

I understand the 4% SWR (and understand it may be lower for Australians, but just using it as an easy to navigate round number in this scenario). My understanding is that we calculate our annual spend and then multiply it by 25 and that *should* last us forever.

However, we don't need it to last forever, we just need it to last until 55. So how best to calculate it?

Is it as simple as saying well, my partner is 42 and therefore has 13 years until he gets his pension. So annual spending multiplied by 13 is what we need?

Or, is there a better way to do it that takes into account SWR and the possibility of fluctuating markets and continued compounding over that 13 years?

Any advice would be greatly appreciated!