A spreadsheet is where most careful investors start, and for good reason: it's free, private, and does exactly what you tell it. Clarifolio is, in a sense, the spreadsheet many of those investors end up building — with the parts that are easy to get wrong already done.

At a glance

Spreadsheet Clarifolio
Cost Free Free for up to 3 issuers; Pro for unlimited
Setup You design every column and formula Ready to use
Cost basis across several purchases Your formula, easy to break when you sell part of a position Weighted average cost, recalculated on every trade
Fees and levies Only if you add columns for them Brokerage fee and other charges on every trade
Dividends, bond interest, T-bill discount Usually one "income" column Three income types, each against the holding that paid it
Reinvested vs. withdrawn Rarely tracked Recorded on every dividend and coupon
Bonds and T-bills Possible, with effort Tenor, rate, and maturity built in; next maturities shown
Year-end summary Build your own pivot table Year in Review and a tax-year summary (Pro)
Moving your data — Import the sheet as Excel or CSV, any column layout
Flexibility Unlimited Opinionated — built for long-term holdings and income
Live prices Possible with a price function Not shown, by design

Where a spreadsheet wins

  • Total flexibility. If you want to model something unusual, a spreadsheet will let you.
  • It's free at any size.
  • You already know how to use it.

Where it quietly goes wrong

The problems with spreadsheets usually aren't visible until they matter:

  • Cost basis after a partial sale. Selling part of a position and then buying more is where hand-built formulas most often drift. See weighted average cost basis for what the calculation should do.
  • Income mixed together. Dividends, bond coupons, and T-bill discounts behave differently. A single income column makes it hard to see what each part of the portfolio is paying.
  • Reinvestment goes unrecorded. Whether a dividend went back into the market or into your current account is one of the most useful things to know at year end, and one of the first things a spreadsheet stops tracking.
  • One formula error ripples everywhere, and there's nothing to tell you it happened.
Clarifolio income calendar showing income received by month and bond interest and T-bill maturities expected over the next 12 monthsClarifolio income calendar showing income received by month and bond interest and T-bill maturities expected over the next 12 months
Income received, and what bonds and T-bills will pay next, worked out without a formula.Sample portfolio, shown in Kenyan shillings. Clarifolio works in any currency: pick yours in Settings.

When to stay with your spreadsheet

If you enjoy building it, track something unusual, or need modelling a ledger won't do, keep the spreadsheet. Many people use both: Clarifolio as the record, a spreadsheet for what-if analysis on top of a CSV export.

When to switch

If your spreadsheet has turned into something you maintain rather than something you read — or you've stopped trusting its totals — a ledger built for the job is usually worth it. Start with the free plan and enter your largest holdings first.

Frequently asked questions

Is a spreadsheet good enough to track my investments?

For a small, simple portfolio, often yes. It becomes harder to keep accurate once you have multiple purchases of the same holding, partial sales, several kinds of income, or government securities with maturity dates.

Can I export my Clarifolio data back to a spreadsheet?

Yes. Pro plans include CSV export of your trade history, and every account can download a full copy of its data from account settings.

Does Clarifolio handle partial sales correctly?

Yes. Cost basis uses the weighted average cost of your holding, and realized gains on a sale are calculated against it automatically.