Screenshots
About Grana - IR da bolsa automático
Grana - IR da bolsa automático handles income tax filing for stock market investors automatically. Built with B3's endorsement and investment, this app cuts through the complexity of declaring dividends, gains, and losses—transforming a manual multi-step process into a streamlined workflow.
The app imports your brokerage data directly from B3's system, then generates a file ready to upload into Brazil's official Income Tax Return program. You complete your tax declaration in minutes rather than hours, with all stock positions, ETFs, REITs, BDRs, options, and futures contracts (IND, WIN, DOL, WDO, BIT, CCM) pre-filled and verified.
Monthly tax calculations update automatically as your B3 data syncs. When you owe income tax, the app calculates your DARF (tax payment slip) and lets you pay directly via Pix or credit card—no separate banking step required. The system has been approved by B3 and meets all security standards for handling investor financial data.
Grana's Income Tax Optimizer identifies legal opportunities to reduce your tax burden. When your trades generate taxable profit, the tool suggests operations that leverage exemptions without reshuffling your portfolio—a feature exclusive to this platform. You also track your detailed dividends, consolidated profitability across all holdings, and see how your returns compare against other investors' performance.
The app covers retroactive tax calculations back to January 2020, so users can resolve years of unfiled or incomplete returns. A free 7-day trial requires no credit card, giving you a risk-free window to see how it handles your portfolio.
Grana comes in three plans: the full Annual package includes automatic tax filing, the optimizer, and AI-powered portfolio analysis; the Annual Income Tax plan delivers tax reporting and calculations but without automation or optimization; and the AI Annual Plan focuses on risk diagnosis, personalized alerts, and portfolio insights without tax solutions.
Investors including well-known figures in Brazilian finance use and recommend Grana. Whether you trade a handful of stocks or manage a complex multi-asset portfolio, Grana - IR da bolsa automático transforms income tax from an annual headache into a monthly, automated routine.
Pros & Cons
Pros
- Automatically imports B3 brokerage data and pre-fills tax forms
- Calculates DARF tax payments and enables direct payment via Pix or card
- Tax optimizer identifies legal deductions without reshuffling your portfolio
- Covers retroactive calculations back to January 2020 for unfiled returns
- Free 7-day trial requires no credit card to test with your portfolio
Cons
- Requires account creation and B3 login to access any features
- Three subscription tiers limit tax automation and optimization to paid plans
- Depends on real-time B3 data sync; tax calculations may lag if connection fails
- Only works for Brazilian investors; no support for other country tax systems
Related Apps
C-pay
Wallypay
Financial app for payments, transfers, loans, and money tracking — secure, simple, 24/7 support.
CSB Business Mobile Banking
Cambridge Savings Bank
Business mobile banking with account transfers, check deposits, and biometric security for CSB customers.
Ualett
Cabicash Solutions, Inc
Fast cash advances for gig workers—no credit checks, flat fees, funds in 24 hours. Download Ualett now.
華南銀行+
華南銀行
Mobile banking app for Hua Nan Bank customers—manage accounts, transfer funds, invest, and pay cards instantly.
CIMB OCTO MY
CIMB Bank Berhad
Mobile banking app with fund transfers, bill payments, QR code checkout, wealth management, and card controls—secure and fast.
Mirae Asset Sharekhan: Invest
Sharekhan Limited
Stock market app: invest in equities, mutual funds, IPOs, derivatives, and more with zero hidden fees.
Latest Articles

Play a free Color Ball Sort Puzzle-style game in your browser (no download)
Oct 6, 2026

Play a free Beach Buggy Racing-style kart racer in your browser (no download)
Oct 6, 2026

Play a free Alto's Adventure-style game in your browser (no download)
Oct 6, 2026

Free online whiteboard like Jamboard: use Quickboard in your browser, no signup
Oct 6, 2026
Free online running pace calculator: splits, race predictor and daily challenge, no download
Oct 6, 2026