Loan amortization from statements
“from our loan list, build the monthly amortization schedule with interest, principal and remaining balance for each loan”
From our Loan list, build the monthly amortization schedule with interest, principal and remaining balance for each loan, paying the remaining balance at maturity for loans marked with a 40% balloon.
What the agent built
1 step, each one an ordinary Mammoth step you can open and change.
- FileLoan listCSV export · 12 rows
- StepBuild monthly amortization scheduleStep 1
- ResultLoan Amortization Schedule711 rows
- ScheduleRuns when you sayProposed
Checked on the sample files: every step ran, 711 rows came out.
- Download Loan list sample (12 rows)Excel: workbook > sheet 'Loans' > File > Save As > CSV
What you get back
The result of that run, the rows to look at first.
| Loan ID | Payment date | Interest | Principal | Remaining balance |
|---|---|---|---|---|
| LN-1001 | 2026-02-15 | 1,718.75 | 3,365.04 | 246,634.96 |
| LN-1001 | 2026-03-15 | 1,695.62 | 3,388.17 | 243,246.79 |
| LN-1001 | 2026-04-15 | 1,672.32 | 3,411.47 | 239,835.32 |
| LN-1001 | 2026-05-15 | 1,648.87 | 3,434.92 | 236,400.40 |
| LN-1001 | 2026-06-15 | 1,625.25 | 3,458.54 | 232,941.86 |
| LN-1001 | 2026-07-15 | 1,601.48 | 3,482.31 | 229,459.55 |
| LN-1001 | 2026-08-15 | 1,577.53 | 3,506.26 | 225,953.29 |
| LN-1001 | 2026-09-15 | 1,553.43 | 3,530.36 | 222,422.93 |
| LN-1001 | 2026-10-15 | 1,529.16 | 3,554.63 | 218,868.30 |
| LN-1001 | 2026-11-15 | 1,504.72 | 3,579.07 | 215,289.23 |
| LN-1001 | 2026-12-15 | 1,480.11 | 3,603.68 | 211,685.55 |
| LN-1001 | 2027-01-15 | 1,455.34 | 3,628.45 | 208,057.10 |
How do you build a loan amortization schedule from a loan list?
Export your loan list from Excel and upload it. Mammoth builds a monthly amortization schedule for each loan, with interest, principal, and remaining balance. If a loan is marked with a 40% balloon, the remaining balance is paid at maturity.
How it works
How to use the Loan Amortization Schedule workflow
- 1Get early accessWe invite people in small batches, job by job. You'll land on this workflow, already built and checked on the sample files.
- 2Swap in your exportsUpload your own files as they come out of your tools. The agent checks the workflow on your rows.
- 3Change it in words, then turn it onSay what to change and see the new result before anything saves. Then choose when it runs.
Loan Amortization Schedule: questions
What export should you use for this workflow?
What happens to rows that do not match the rules?
How do you change the rules?
Get early access to this workflow
It will open already built and checked on the sample files. Swap in your own exports and see your result.
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