A portfolio calculator for individual investors

Turn scattered investment records into one portfolio.

Import broker screenshots or files, then see returns, allocation, worst drawdown, and change over time. Portle also checks your investing rules and records that may need attention.

Keep your ledger on this device or in your Google Drive. Portle is not a broker and does not provide investment or tax advice.

Portle home screen
Portle ledger screen

Your ledger

Keep records where you choose.

Start without signing in and keep your ledger on this device. If you prefer, move it to Google Drive and manage it as a Google Sheet you can inspect and export.

Keep buys, sells, dividends, fees, cash transfers, currencies, and notes together. Portle turns those records into portfolio views while keeping each result traceable to its ledger rows.

Results and checks

See the results, then the records behind them.

Ledger

Import transactions, then review them

Share broker screenshots, CSV files, or Excel files. Portle reads the transactions and lets you confirm the rows before anything is saved.

Rules

Check your own investing rules

Set target weights, cash minimums, or leverage limits. The Home screen checks those rules against your ledger and shows the result. Portle reports the numbers but does not give investment advice.

Echoes

Review similar periods from the past

Portle finds past market periods that resemble today, then shows what the market and your portfolio did next. These are historical comparisons, not forecasts.

Checks

Review entries that may need attention

Portle flags possible duplicates, missing dividends or splits, and differences from your broker balance. It explains each finding and leaves every change to you.

Tax residence

Review estimates based on where you pay tax.

Choose your tax residence in Settings. Portle adjusts the reporting currency and available tax estimates for the United States, Korea, Japan, Canada, Australia, or the United Kingdom. Other countries still receive the general portfolio and ledger views.

United StatesKoreaCanadaJapanAustraliaUnited KingdomOther
Portle home screen

Calculate first. Keep the useful records.

Use five browser-only tools for average cost, another purchase, recurring contributions, dividends, and a target amount.

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Use Portle

Start a ledger and keep it useful.

Learn how to import broker records, choose a reporting currency and tax residence, and review entries that may be duplicated or missing.

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Download Portle

Start with the records you already have.