Amortize 128 by S.D. Gillett (January 17, 1994) is a loan amortization program for the Commodore 128 (in 80 column mode).

This program uses the fast mode of the C-128. Thus, it runs only in 80 column mode. That is just as well, as when building an amortization table, the 40 column screen is just too narrow to display the desired
amount of information.

AMORTIZE grew from an earlier program which was released as PAYMENT. The user still has the option of only determining the monthly payment amount on a loan, as with payment. Added are options to view an
amortization table on screen, or to send the amortization table to the printer.

Full documentation is included on the disk.

This small machine language calculator is for the Commodore 128 and only runs in 80 column mode.

Note - This program needs to be loaded using DLOAD instead of the standard LOAD.

Basic Budget 128 by Granger the Ranger (seriously).  If this is what it takes to get your finances back into shape, by all means,  use it!

Calc 128 is a fancy shmancy calulator for the Commodore 128.

Calculator 128 is a simple BASIC program for the Commodore 128 in 80 column mode that emulates an accountants calculator.  Instead of just showing you the result of your math, it keeps track of your entries and totals with an option to print them out for future review.

Car Expense Manager v3.1 by Dico-Soft is a complete car expense tracking system for the Commodore 128 (Needs both 80 & 40 column modes).  With this software, not only can you track your usual costs like repairs, gas, miscellaneous, you can also track mileage which in turn will let you get graphs of your costs over time.

** You need to load this programs with DLOAD and not the normal LOAD.

Checkbook 128 by Colin Lavoie is an 80 column Commodore 128 program to keep track of checks and balances for your checkbook.  Documentation is included on the disk image.

EasyLife - The Banker v3.02 - Written by J.R. Turner and S.M. Boyd (Easylife Software Systems, August 1, 1990) - This is probably one of the most complete Commodore 128 personal checking / bank account management systems I've seen.  It's fully menu driven and mostly intuitive (not strikingly obvious you need to press the first letter of some words to navigate).  There is some documentation on the disk which covers most of the operations,  but the one thing it mentions that I can't get to work is running the "start-up" program to create a new account.  You will notice this already has someone else's information, but whenever I tried removing the info, the program would complain and stop working.  If anyone has the manual or figures out how to create a new set of data, please let me know.

Oh, one thing I found funny / odd about the program is that in the utilities menu there is an option to play music... yup, it has built-in piano music!

As a side note, this software was advertised on page 76 of the April 1990 issue of Compute!'s Gazette.  I added a screenshot of the add.

Interest Calculator 128 is a simple but handy application for calculating the interest or payments on things like house mortgage, car loan, CD interest returns, or even just interest on a savings account.

PERSONAL CHECKING 128 by W.J. Brier (1986) for the Commodore 128 in 80 column mode is a full-featured program that can supplement or replace the conventional checkbook. All of the usual transactions that are recorded in a regular checkbook are  supported in this program. PERSONAL CHECKING 128 can print checks, maintain a file of frequently used payees and check memos, and reconcile or balance the account. Unlike a conventional checkbook, you are not hampered by mathematical errors or careless record keeping. Entries can be quickly and easily located using a variety of searches.

Note - the date format is a bit screwy but can be found in the docs that are included on the disk.