Jan Remmer Siebels c3e0cc0f6a Fix quarterly payment schedule to correct advance payment dates ...

- Q1: Due December 15 (previous year)
- Q2: Due March 15
- Q3: Due June 15
- Q4: Due September 15

Added new management command fix_quarterly_payment_schedule to update existing payments

2025-10-01 13:12:52 +02:00

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destinataer_notizen

Fix quarterly payment schedule to correct advance payment dates

2025-10-01 13:12:52 +02:00

land_abrechnungen

Fix quarterly payment schedule to correct advance payment dates

2025-10-01 13:12:52 +02:00