Side 2 holds the California Worksheets. Attach Side 2 to your California tax return.
Part four through Part nine: not required to be filed with your California tax return and may be detached before filing form FTB 3801.
Part two: special allowance for rental real estate activities with active participation; enter all numbers in Part two as positive amounts.
Federal Form 8582: see the instructions for Part four and Part five for federal Form 8582, Passive Activity Loss Limitations, before completing Part one.
| Question | Answer |
|---|---|
| Form Name | California Form 3801 |
| Form Length | 4 pages |
| Fillable? | Yes |
| Fillable fields | 340 |
| Avg. time to fill out | 57 min |
| Edition | 2025 |
| Matches the agency's file | Yes, checked October 3, 2026 |
| Other names | FTB 3801, Form 3801, California Form 3801, CA Form 3801, Passive Activity Loss Limitations |
| Official source | FTB 3801 2025, California Franchise Tax Board |
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