Re: [GNC] Stumped on Mortgage Asst - Screenshots

Wed, 03 Aug 2022 05:38:29 -0700

Thanks for the background folks. I appreciate the effort and will do the manual creation.
However, I'm hardheaded enough that I want get the transaction to work within tolerances with a minimum of monthly intervention such as editing or reading bank statements. I have to go on record that P&I for July 2022 and May 2035 is more than simply fractions of pennies from various calculation assumptions. I don't need that sort of precision in tracking trends in my personal Net Worth reports. 


Is there a man page of sorts for the various functions, pmt, ipmt, 
ppmt?  I'm sure one of the trailing zeros refers to whether payments are 
due at the beginning or end of the period, but can't imagine what the 
other may be. Meanwhile, I'll continue experimentation on my dummy data. 
Like I said, hardheaded.


Steve

On 8/2/22 10:17, David Carlson wrote:

Steve,

I am not going to open your zip file, I imagine it is just documenting the
fact that the P & I calculations don't exactly match your lenders'
statements, which is a known issue, unfixable since they all have their own
way of calculating it.  At least that was the case years ago when I last
set one up.  Many of us, like Will, just accept the numbers as estimates
and correct them when we get the statements.

There has been some discussion in the history here about how to massage the
equations when we want to 'start in the middle' for an existing loan, for
example, but I am not sure how to find those.

On Tue, Aug 2, 2022 at 8:47 AM William Prescott<w...@theprescotts.com>
wrote:


A slight variation on Steve's suggestion.

I made the mortgage payments a 'Scheduled Transaction' with some nominal
values for principal and interest payments. Then, they were created
automatically, and I just edited them to get the amounts correct.

Will

On 2022 Aug 2, at 08-02 02:55:33, David T. via gnucash-user <
gnucash-user@gnucash.org> wrote:

Steve,

I expect others will give you ideas on how or what is mistaken on the
mortgage assistant.

I, however,  am going to suggest a different approach, which is to forego
using the scheduled transactions/mortgage assistant altogether, and simply
enter the monthly payments manually.

The reason I suggest this is due to the fact that (as Michael Novak often
reminds us on the list) your calculations and the bank's calculations will
likely not match precisely, due to differences in base assumptions on the
calculation. Because they won't match precisely, you'll end up editing the
completed transactions. [For this reason, I truly wonder whether the
mortgage assistant is actually useful or should be included in the program,
since it seems to cause more troubles than it solved. That's just my
opinion, however.]

If, instead, you enter the transactions manually, Gnucash will autofill
the transaction with the last entered values, and you can quickly modify
the amounts to match the bank statement.

David T.


On August 1, 2022 11:59:06 PM GMT+03:00,"steve.schwa...@fastmail.com"  <
steve.schwa...@fastmail.com> wrote:

All,

     Please help if you can. I think I've documented with the shots

required, but if you want to see something else, sing out. Somewhere I am
missing a very basic concept. I'm trying to use the assistant to create a
scheduled transaction. The file names describe each step. The file and CoA
are dummies until I grasp this concept and move on to putting my 401kk of
MUFUs into the tool.

- I've used my current statement, due 1 July to match up a amortization

website to show the P&I due on 1 July. Amounts and start dates in the
assistant are configured to match those amounts. Curiously, the website and
my statement show a different remaining balance, but that is outside the
scope.

- I step you through my assistant.

- In the end I show you the result of the assistant, which shows the

correct P&I. Escrow is wrong, but I'm sure I can fix that in the editor.
I'll accumulate escrow each month and then schedule a payment from escrow
asset to tax and insurance expenses once all the above works.

- I let GnuCash enter the created transaction (ignoring from birth of

the loan) and the transaction for 1 July 2022 is actually the P&I for 1 May
2035.


TIA

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