The page holds the 2025 Instructions for Form FTB 3588 and the payment voucher.
Who uses it: only use it if the LLC meets all of the following: files its tax return electronically, has a balance due, remits payment with a check or money order.
Web Pay or credit card: if paying by Web Pay, do not file form FTB 3588. If paying by credit card, do not file form FTB 3588.
Payment: make the check or money order payable to the Franchise Tax Board.
Voucher: attach the preprinted voucher or detach the payment voucher below, only if an amount is owed.
Return: do not mail a paper copy of the LLC return to the FTB.
| Question | Answer |
|---|---|
| Form Name | Form FTB 3588 |
| Form Length | 1 page |
| Fillable? | Yes |
| Fillable fields | 12 |
| Avg. time to fill out | 2 min |
| Who must file | California LLCs with a balance due on an electronically filed income tax return |
| Payment method | Check or money order payable to Franchise Tax Board |
| Edition | 2025 |
| Matches the agency's file | Yes, checked October 3, 2026 |
| Other names | FTB 3588, 3588, Form 3588, California Form 3588, Payment Voucher for LLC e-filed Returns |
| Official source | Form FTB 3588 (2025), Franchise Tax Board |
California Form 3588 isn’t the one you’re looking for?