Would be very useful!

I have had to approximate this by:

• Lowering the mortgage liability
• Lowering the available cash on the offet to match

This results in a net zero change to net worth but prevents PL from charging the interest associated with the mortgage. The downsides to this hack are that it incorrectly reports my liquid NW value, and prevents the simulation from being able to access this cash for any reason.

This would be the feature that would result in me hitting the lifetime subscriber button

I will also be immediately subscribing once this feature is available!

Saw the post on HN the other day, would definitely love to see this feature! Currently I can’t accurately model my plans without it.

Just pushed a draft of this to the EA site ;)

https://ea.projectionlab.com/

Let me know if this is what everyone had in mind, or if any other mechanics would be needed.

I’ve had a bit of a play around with this feature in EA.

Appears to do what you would expect. Applying an offset account reduces the interest charged. If the loan is 100% offset, then expenses reduce to zero, and debt repayments stay constant in line with the loan parameters.

It is likely outside the scope of this request, but something that would be complementary. Now that I can designate a savings account as an offset, my target balance for that account is the current outstanding value of the mortgage, or in other words, putting more that 100% into offset serves no purpose (and earns no interest). I can manually set the target to the starting value of the loan, but ideally that goal in each year should be to contribute as much as possible up until the current loan value, then move to the next goal. This would require the ability to set the savings goal to be dependant on the value of another account, rather than a fixed value.

In the interim, the options are to: 1. Manually set a savings goal for each year, for the life of the mortgage, or 2. Set a savings goal for the entire mortgage, then end it when the loan is paid off (this required a custom goal to be created)

Looks good!

Thanks for working on this feature Kyle! I signed up for an account due to it, but to echo Brendan’s comments being able to set a savings goal dependent on mortgage balance would be a really important complement to this feature. I’m still working out how to use everything, but I still can’t accurately model my plans without it.

As a sidenote, it seems mortgage payments are set by monthly amount, but it would be much better if you could define a mortgage term (25, 30 years etc) and calculate payments based on a loan payment function like https://support.microsoft.com/en-us/office/pmt-function-0214da64-9a63-4996-bc20-214433fa6441