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https://issues.apache.org/jira/browse/FINERACT-2789?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18109278#comment-18109278
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Adam Saghy edited comment on FINERACT-2789 at 8/28/26 4:32 PM:
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[~marlop] I was able to reproduce:
Number of repayments: 8
Grace on principal: 7
!image-2026-08-28-18-31-20-156.png|width=960,height=562!
was (Author: adamsaghy):
[~marlop] I was able to reproduce:
!image-2026-08-28-18-31-20-156.png|width=960,height=562!
> Balloon loan not working as expected
> ------------------------------------
>
> Key: FINERACT-2789
> URL: https://issues.apache.org/jira/browse/FINERACT-2789
> Project: Apache Fineract
> Issue Type: Bug
> Components: Loan
> Affects Versions: 1.15.0
> Reporter: Mario Lopez
> Priority: Major
> Attachments: image-2026-08-28-18-31-20-156.png
>
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> h1. Steps to reproduce
> Fineract Version: `d563684` (Release 1.15.0)
> 1. Create a loan product that behaves like a Balloon (no principal repayment
> until the last one) with the following features
> |Feature|Value|
> |-|-|
> |Schedule|Progressive|
> |Interest|Declining Balance|
> |Repayments|8|
> |Grace on Principal|7 (Balloon)|
> |Repayment Frequency|Every 3 months|
> [https://pastebin.com/gRskJj5t]
> 2. Preview the repayment schedule for that product
> Request: [https://pastebin.com/ujfQLpfh]
> | # |Due date|Principal|Interest|Fees|Total due|Balance|
> |—|----------|-----------|----------|------|-----------|---------|
> |—|2026/08/26|300,000.00|—|0.00|0.00|300,000.00|
> |1|2026/11/26|37,500.00|22,500.00|0.00|60,000.00|262,500.00|
> |2|2027/02/26|40,312.50|19,687.50|0.00|60,000.00|222,187.50|
> |3|2027/05/26|43,335.94|16,664.06|0.00|60,000.00|178,851.56|
> |4|2027/08/26|46,586.13|13,413.87|0.00|60,000.00|132,265.43|
> |5|2027/11/26|50,080.09|9,919.91|0.00|60,000.00|82,185.34|
> |6|2028/02/26|53,836.10|6,163.90|0.00|60,000.00|28,349.24|
> |7|2028/05/26|28,349.24|2,126.19|0.00|30,475.43|0.00|
> |8|2028/08/26|0.00|0.00|0.00|0.00|0.00|
> - The grace on principal is not working as expected. The principal component
> in tranches 1-7 is not zero.
> 3. Setup the grace on principal as N-2
> [https://pastebin.com/rqcw57t6]
> | # |Due date|Principal|Interest|Fees|Total due|Balance|
> |—|----------|-----------|----------|------|-----------|---------|
> |—|2026/08/26|300,000.00|—|0.00|0.00|300,000.00|
> |1|2026/11/26|0.00|22,500.00|0.00|22,500.00|300,000.00|
> |2|2027/02/26|0.00|22,500.00|0.00|22,500.00|300,000.00|
> |3|2027/05/26|0.00|22,500.00|0.00|22,500.00|300,000.00|
> |4|2027/08/26|0.00|22,500.00|0.00|22,500.00|300,000.00|
> |5|2027/11/26|0.00|22,500.00|0.00|22,500.00|300,000.00|
> |6|2028/02/26|0.00|22,500.00|0.00|22,500.00|300,000.00|
> |7|2028/05/26|144,578.31|22,500.00|0.00|167,078.31|155,421.69|
> |8|2028/08/26|155,421.69|11,656.63|0.00|167,078.32|0.00|
> - Grace period on principal with N-2 works as expected.
> - Something is wrong when grace on principal is N-1.
>
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