Every month, a trader on B3 has to work out the result, separate day trades from swing trades, offset past losses and withholding, and pay the DARF on time. Seferu now does that math from your journal.

What you get

• Next DARF: the estimated amount, the due date and the code (6015)
• Losses to carry forward, separately for day trades and swing trades
• Withholding to offset: tax withheld by the broker and not used yet
• Monthly table with day trade, swing trade, exempt sales, tax due, withholding and DARF

Seferu applies 20% on day trade gains and 15% on swing trade gains, the R$ 20,000 monthly exemption on stock sales, losses offset within the same type, and rolls amounts under R$ 10 to the next month.

Where to find it

In Reports, the Tax card shows the next DARF. Or ask Seferu Intelligence: "do I owe a DARF this month?"

Good to know

It's an estimate built from your journal. Check it against your brokerage notes or with your accountant before paying. Seferu doesn't generate the DARF slip or file your annual return: use the amount and code on the Receita Federal website or app. Trades outside B3 follow other rules and show separately.

How taxes and DARF work →