# Fixed day payment terms
**URL:** https://discuss.tryton.org/t/fixed-day-payment-terms/2390
**Category:** Ideas
**Created:** [February 29, 2020, 11:27am UTC](https://discuss.tryton.org/t/fixed-day-payment-terms/2390 "2020-02-29T11:27:53Z")
**Posts on this page:** 7
**Page:** 2
### Author:  [@risto3](https://discuss.tryton.org/u/risto3)
#### Post date: [May 27, 2020, 7:38am UTC](https://discuss.tryton.org/t/fixed-day-payment-terms/2390/21 "2020-05-27T07:38:50Z")
Guess a bug report is in order as this breaks the prior 30day clause
For example, if the invoice date is 31/03 then 30d the 10th will return 10/04 (10 days ) instead of 10/05
---
### Author:  [@josesalvador](https://discuss.tryton.org/u/josesalvador)
#### Post date: [July 22, 2020, 4:00pm UTC](https://discuss.tryton.org/t/fixed-day-payment-terms/2390/22 "2020-07-22T16:00:26Z")
Another simple user case that does not work as a user would expect:
A Payment Term defined to be reached _Day of Month_ 5.
From day 1 to 5 of the same month the result is the result expected:
Invoice date: 2020-07-01 β Due: 2020-07-05
For the rest of the month the result is not the result expected (overdue date):
Invoice date: 2020-07-06 β Due: 2020-07-05
User would expect in this case:
Invoice date: 2020-07-06 β Due: 2020-08-05
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### Author:  [@ced](https://discuss.tryton.org/u/ced)
#### Post date: [July 23, 2020, 6:37am UTC](https://discuss.tryton.org/t/fixed-day-payment-terms/2390/23 "2020-07-23T06:37:27Z")
> [@josesalvador](#):
>
> Another simple user case that does not work as a user would expect
This is doable:
- -5 days (or -6)
- +1 months
- 5 day
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### Author:  [@josesalvador](https://discuss.tryton.org/u/josesalvador)
#### Post date: [July 23, 2020, 4:07pm UTC](https://discuss.tryton.org/t/fixed-day-payment-terms/2390/24 "2020-07-23T16:07:52Z")
Wow!
It works!!! And the most important thing: I understand why.
Thank you @ced
Only one thing: Why do we need -6 days? Using only -5 days works even for leap years.
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### Author:  [@pokoli](https://discuss.tryton.org/u/pokoli)
#### Post date: [July 23, 2020, 4:26pm UTC](https://discuss.tryton.org/t/fixed-day-payment-terms/2390/25 "2020-07-23T16:26:18Z")
> [@ced](#):
>
> This is doable:
>
> - -5 days (or -6)
> - +1 months
> - 5 day
And if you will like to apply a delta to the days, you can do it by including it on the +1 months. So for example if you want to apply to pay on 30D + day 5 you should do:
- -5 days
- +1 month + 30 D
- 5 day
So we the missing feature is specifing multiple payment days on the same month.
---
### Author:  [@ced](https://discuss.tryton.org/u/ced)
#### Post date: [July 23, 2020, 4:33pm UTC](https://discuss.tryton.org/t/fixed-day-payment-terms/2390/26 "2020-07-23T16:33:12Z")
> [@josesalvador](#):
>
> Only one thing: Why do we need -6 days?
It depends if you want the invoice posted on 5th to be due the same day or the next month.
---
### Author:  [@josesalvador](https://discuss.tryton.org/u/josesalvador)
#### Post date: [July 23, 2020, 4:45pm UTC](https://discuss.tryton.org/t/fixed-day-payment-terms/2390/27 "2020-07-23T16:45:59Z")
> [@ced](#):
>
> It depends if you want the invoice posted on 5th to be due the same day or the next month.
Got it!
Itβs already perfectly clear for me.
Thank you.
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