Koinly Review: An Honest Crypto Tax Verdict

Crypto tax is one of the most frustrating parts of holding digital assets — multiple exchanges, self-custody wallets, staking, and DeFi quickly turn into a reconciliation nightmare. Koinly is one of the most widely used tools built to solve exactly that, and this Koinly review pulls the research picture together honestly. We cover what Koinly actually does, how its pricing works, how accurate it is in practice, the recurring complaints, and who should use it. The Koinly review framework we apply weights real user feedback and country coverage heavily.

What is Koinly? A Koinly review primer

Before getting into the full Koinly review verdict, let’s establish what Koinly actually is. Koinly is a cloud-based crypto tax platform and portfolio tracker that calculates capital gains, losses, and taxable income from cryptocurrency activity. Founded in 2019 by Robin Singh, it has grown into one of the more established names in the category.

The core idea is simple: you connect your exchanges and wallets, Koinly imports your entire transaction history, reconciles transfers between your own accounts, and produces a tax report formatted for your country. It serves two audiences — individual investors who file their own taxes, and accountants who handle crypto clients through a dedicated professional platform. That dual focus on retail investors and tax professionals is part of why the platform invests so heavily in integration breadth and jurisdiction-specific reporting.

Unlike general tax software, Koinly is built around the quirks of digital assets: airdrops, hard forks, staking rewards, gas fees, NFTs, and DeFi positions. If crypto itself is still new to you, our crypto for beginners guide covers the fundamentals this Koinly review assumes.

The four things Koinly actually does (Koinly review feature summary)

• Imports your full history — connects to hundreds of exchanges, wallets, and blockchains via API keys, public addresses, or CSV upload (a standout finding of this Koinly review)
• Reconciles and classifies — matches internal transfers so you aren’t taxed on moving your own funds, and labels staking, mining, lending, and airdrops
• Calculates gains and income — applies cost-basis methods like FIFO, LIFO, and HIFO depending on what your jurisdiction allows
• Generates country-specific reports — produces forms and summaries you can file yourself, hand to an accountant, or import into tax software

How Koinly works (Koinly review walkthrough)

An honest Koinly review needs to explain the workflow, because most of the value — and most of the friction — lives here. Koinly standardises crypto tax reporting into four phases, and understanding them tells you where the tool helps and where you still have to think.

Step 1: Connect your accounts

You add each exchange and wallet using read-only API keys, public wallet addresses, or CSV files. Koinly never takes custody of your funds and cannot move anything — the connection is read-only. The platform supports a very large catalogue of integrations, which is the main reason multi-exchange users gravitate to it.

Step 2: Reconcile transfers

Once data is in, Koinly tries to match transfers between your own wallets so those movements are not counted as taxable disposals. This is where the software saves the most time — and also where the most cleanup happens. If a transfer can’t be matched automatically, it can surface as a phantom gain or a missing cost basis until you fix it. Getting reconciliation right is the difference between a believable report and an inflated tax bill, which is why this Koinly review rates the data-review step as essential rather than optional.

Step 3: Calculate gains and income

Koinly applies the cost-basis method your country uses and computes short- and long-term gains, plus income from staking, mining, and airdrops. It tracks the market value of each asset at the time of each transaction, which is the tedious part of crypto tax that spreadsheets handle badly.

Step 4: Generate the report

Finally, Koinly produces a country-specific tax report. In the US that includes Form 8949 and Schedule D and reconciliation against 1099-DA forms; in the UK it produces an HMRC-style summary; and similar localised outputs exist for Canada, Australia, and much of Europe. You can file yourself, import into consumer tax software, or send the report to an accountant. For US filers, the IRS digital assets guidance explains why accurate cost-basis tracking matters so much.

Koinly pricing explained (Koinly review breakdown)

An honest Koinly review has to address pricing, because it works differently from a typical app subscription and that surprises people. Koinly separates tracking from reporting, and you only pay for the part most people actually need at tax time.

Free to track, paid to file

Importing your transactions, tracking your portfolio, and previewing your gains and losses for a tax year are all free. You only pay when you want to download an official tax report for a given year. This means you can connect everything, see your estimated position, and decide whether the report is worth buying — a genuinely fair structure noted across this Koinly review’s research.

Priced per tax year, by transaction count

Report pricing is tiered by how many transactions you had in that tax year, and it is charged per tax year rather than as an ongoing monthly subscription. Light holders pay the least; high-frequency traders and heavy DeFi users land in the upper tiers. The practical takeaway from this Koinly review: your cost tracks your activity, so model your transaction count before assuming a tier.

What users consistently praise (Koinly review positives)

Across the sources surveyed for this Koinly review — Trustpilot, expert reviews, and community discussion — several strengths show up again and again.

1. Broad exchange and wallet coverage

This is the most consistent positive in our Koinly review research. Koinly connects to hundreds of exchanges, wallets, and blockchains, so users juggling several platforms can consolidate everything in one place. Reviewers repeatedly describe importing years of scattered history and finally seeing one coherent picture.

2. The free preview removes the guesswork

Being able to import everything and see your estimated gain or loss before paying is praised constantly. It lets you confirm the data is right and judge whether a paid report is worthwhile. For a category where trust is fragile, this transparency is a recurring highlight in this Koinly review.

3. Genuinely strong country coverage

Koinly produces localised reports for a wide range of jurisdictions, including the US, UK, Canada, Australia, and much of Europe. Users in Australia and New Zealand specifically praise how cleanly it handles their local rules. UK users note that connecting wallets and exchanges and pulling an HMRC-ready summary is straightforward. The UK capital gains tax rules are notoriously fiddly for crypto, so localisation matters.

4. Helpful support and a polished interface

Koinly’s TrustScore sits around 4.6/5 across more than 2,200 Trustpilot reviews, and a recurring theme is responsive, knowledgeable human support — several reviewers describe support staff resolving complex import issues quickly. The interface itself is widely described as clean and approachable for beginners while still offering filters and tags that power users need.

What users consistently complain about (Koinly review negatives)

Equally important — and what separates this research-based Koinly review from marketing summaries — are the recurring complaint patterns. Koinly is well-liked overall, but the criticisms cluster around a few specific, predictable issues.

1. DeFi and cross-chain activity still needs manual cleanup

The single most common limitation in our Koinly review research. Simple spot trading imports cleanly, but complex DeFi — liquidity pools, cross-chain bridges, obscure protocols — can import incorrectly or need manual labelling. Koinly handles more of this than it used to, but heavy DeFi users should expect reconciliation work rather than a one-click report.

2. Occasional miscategorisation and missing cost basis

Several users report transactions importing with a zero or missing cost basis, or being miscategorised, which inflates the apparent gain until corrected. This usually happens when a transfer between your own wallets isn’t matched, or when an exchange’s data is incomplete. It is fixable, but it means you must review the data rather than trust it blindly — a point this Koinly review keeps returning to.

3. Newer tokens and chains can lag

Reviewers note that very new tokens or smaller chains sometimes take time to be supported, requiring manual wallets or workarounds in the meantime. For people deep in the newest corners of the ecosystem, this is a real friction point surfaced in this Koinly review.

4. Support is mostly strong, but not flawless

While support is praised more often than not, a minority of users report slow responses at peak tax season or an automated assistant that loops without resolving the issue. There are isolated reports of report errors requiring a refund — and those refunds do generally get processed once escalated to a human. The pattern in this Koinly review is good support overall, with strain at the busiest times of year.

Koinly vs alternatives (Koinly review comparison)

This Koinly review is more useful in context. Here is how Koinly compares to other crypto tax tools based on public information — a critical part of any Koinly review.

The honest summary from this Koinly review: there is no single winner across the category, only the right fit for your situation. Koinly’s edge is breadth of integrations and country coverage; if your activity is mostly on one mainstream exchange, a more tightly integrated tool may import more cleanly. If you want software plus hands-off help from a professional, a full-service option fits better. The sensible approach is to run your data through the free preview on two tools and compare which imports your history more cleanly before paying for either.

If you’re weighing Koinly against a specific rival, our head-to-head comparisons go deeper: see Koinly vs CoinTracker and Koinly vs CoinLedger.

Who Koinly is for (Koinly review fit guide)

Based on consistent patterns in this Koinly review’s research, Koinly is a strong fit if you:

• Use several exchanges and wallets — consolidation across platforms is exactly where Koinly earns its keep (a key Koinly review finding)
• Want a country-specific report — localised outputs for the US, UK, Canada, Australia, and much of Europe are a genuine strength
• Stake, lend, or hold across chains — Koinly classifies most of this automatically, with some manual review for complex DeFi
• Prefer to verify before paying — the free preview lets you confirm the numbers first
• File yourself or work with an accountant — reports drop into consumer tax software or hand off cleanly to a professional

Who should skip Koinly (Koinly review caveats)

Equally important to this Koinly review: Koinly is probably not the right fit if you:

• Have only a handful of trades on one exchange — your exchange’s own report or a simpler tool may be enough
• Live deep in cutting-edge DeFi — expect manual cleanup; confirm your protocols are supported before committing (a clear Koinly review limit)
• Want hands-off, full-service filing — a tool that bundles a tax professional may suit you better
• Trade at very high volume — compare the upper-tier report cost against alternatives before deciding
• Expect zero review work — no crypto tax tool is fully automatic; you still need to sanity-check the data

Koinly review FAQ

Is Koinly safe to connect to my exchanges and wallets?

By industry standards, yes, per this Koinly review’s research. Koinly connects through read-only API keys or public wallet addresses, so it can see your transaction history but cannot move or withdraw funds. It does not take custody of your assets. As with any tool, use exchange API keys scoped to read-only access and review the permissions you grant.

Is Koinly really free?

Tracking is free; filing is paid. You can import transactions, track your portfolio, and preview your gains and losses for a tax year at no cost. You only pay when you download an official tax report, and the price depends on your transaction count for that year. Many people use the free tier purely as a portfolio tracker, per this Koinly review.

How accurate is Koinly?

Accurate for straightforward activity, with caveats for complex cases, in our Koinly review research. Spot trades and major-chain activity import reliably. Complex DeFi, cross-chain bridges, and incomplete exchange data can produce miscategorised transactions or missing cost basis that you need to correct. The free preview is designed for exactly this review step before you file.

Which countries does Koinly support?

A wide range, per this Koinly review. Koinly generates localised reports for the US, UK, Canada, Australia, and much of Europe, applying the cost-basis method and report format each jurisdiction expects. Coverage and exact forms vary by country, so confirm your specific country’s report is supported before buying.

Does Koinly handle DeFi, staking, and NFTs?

Yes, with some manual review for the complex cases. Koinly classifies staking rewards, mining, lending, airdrops, and NFT activity, and handles common DeFi protocols. Very complex or novel DeFi can still need manual labelling — a recurring theme in this Koinly review. Confirm your protocols are supported if DeFi is central to your activity.

Can Koinly replace an accountant?

No, and it doesn’t try — a point this Koinly review makes clear. Koinly organises your data and produces a report; it does not give personalised tax advice or judge whether your filing position is correct for your circumstances. For complex, high-value, or uncertain situations, a qualified accountant remains essential. Many accountants actually use Koinly to prepare client reports.

Does Koinly work with TurboTax and other filing software?

Yes. Koinly exports reports in formats that import into popular consumer tax software and that accountants can work from directly. In the US it produces Form 8949 and Schedule D and reconciles against 1099-DA reporting, so the crypto portion slots into your wider return. If you want the bigger picture first, our tax filing basics guide covers how it all fits together.

How much does Koinly cost?

Koinly is free to track and preview, and charges a one-time fee per tax year to download a report, with tiers based on your transaction count. Light holders pay the least and high-volume traders the most. Because crypto tax pricing changes between years, check Koinly’s current tiers before buying rather than relying on older figures, per this Koinly review.

Our final Koinly review verdict

Based on our research across Trustpilot, expert reviews, and community discussion, here is the final Koinly review scoring against our seven weighted categories.

Scores follow our published review methodology — seven weighted categories scored from research, not personal testing.

What stands out across the research in this Koinly review is how consistent the sentiment is. The recurring story is not “it failed” but “it imported years of messy history and finally made tax season manageable” — tempered by the honest caveat that complex DeFi and incomplete exchange data still need a human eye. That balance is exactly what you want from a tool in a category where the data is genuinely hard.

Is Koinly perfect? No, and this Koinly review doesn’t pretend otherwise. DeFi reconciliation, occasional miscategorisation, and pricing that scales with activity are real considerations. But for the specific job of turning scattered, multi-platform crypto history into a country-specific tax report, the research is clear that Koinly does that job well for most investors. For a wider view of the category, see our overview of crypto tax software.

This Koinly review will be updated when Koinly changes pricing, features, or country coverage, or when significant new evidence emerges. Last reviewed: June 2026.