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Best done in the final quarter of the year

Crypto transaction
clean-up and reconciliation

Hundreds or thousands of transactions across exchanges, wallets and DeFi, and no idea how to turn that into numbers for a tax return? We will do it for you. From a mess of exports, CSV files and on-chain history we build one clean record with correctly calculated cost basis and gain or loss, ready for your Slovak tax return and able to withstand scrutiny.

Who this is for

If you have fewer than 20 transactions from a single exchange, you probably do not need this. If you have several sources and it is getting hard to follow, you are in the right place.

Sound familiar?

  • “I have 3,000 transactions on five platforms and no idea where to start.”
  • “I moved crypto between my own wallets and the software reports it as a sale.”
  • “I did swaps, staking and LPs and have no idea what is even taxable.”
  • “The exchange I used no longer exists and I have no statements from it.”
  • “I do not know my purchase price, and without it I cannot calculate the gain.”
  • “My accountant told me they do not do crypto.”

This is not laziness. Rebuilding cost basis across a fragmented history is the hardest and slowest part of crypto tax work, and it has to be done again every year.

What you get

The output is not just a spreadsheet. It is a defensible record that holds up if the tax office asks.

One widespread myth worth clearing up. The 7% rate for cryptocurrency held longer than one year was legislated in Slovakia in 2023, but repealed before its 1 January 2024 effective date. It never came into force.

For directly held cryptocurrency owned by an individual there is therefore no holding period test at all. The one-year exemption applies to securities under Section 9(1)(k) of the Income Tax Act, for example crypto ETPs sold on a regulated market. That distinction is central to reconciliation, because it decides whether a given disposal enters the tax base or not.

Why deal with this now rather than in March

Most people leave reconciliation until the moment they have least time for it. The final quarter of the year is a much better window, for three reasons.

The practical upshot: whoever has clean data in December simply files in March. And knows where they stand before it is too late to react.

How it works

  1. Free consultationYou tell us where you traded and at what volume. We estimate the scope and the price.
  2. Handing over recordsYou send exports and CSV files from exchanges, read-only API access or just public wallet addresses. We never need private keys or passwords.
  3. Processing and reconciliationWe import and normalise the data, match transfers between your own addresses, fill in missing exchange rates and calculate the tax base.
  4. Report handoverYou receive the clean output plus a consultation. If you want, we continue straight into the tax return itself.

Why us

The work is done by a tax advisor specialising in crypto and ETF investors, not by software and not by a general accounting firm. We understand both the tax side and the on-chain reality. Most accountants handle one or the other, and the value of this service lies exactly at that intersection.

We work under Slovak law: FIFO, correct separation of taxable and exempt income, EUR conversions for foreign brokers. Non-standard cases are routine for us, including dead exchanges, missing data and several years at once. The tax advisor carries professional liability insurance up to €25,000.

Pricing

The price depends on the number of sources and transactions, and on how much has to be reconstructed.

Basic

1 to 2 exchanges

from €149

Up to 300 transactions, no DeFi.

  • Import and normalisation of exports
  • FIFO cost basis
  • EUR conversion
  • Report in XLSX and PDF
Standard

Multiple sources

from €349

Several exchanges and wallets, staking and airdrops, up to 1,500 transactions.

  • Everything in Basic
  • Matching of transfers between your own wallets
  • Staking, airdrops and rewards classified
  • Short consultation on the result
Complex

Custom

from €690

DeFi, LP positions, dead exchanges, reconstruction of missing data or several years at once.

  • Everything in Standard
  • Reconstruction of missing data and rates
  • DeFi, LP positions and NFTs
  • Several tax periods at once

The exact price is always agreed upfront after a free consultation, with no surprises. If you then have us prepare the tax return as well, the reconciliation becomes its input and nothing is charged twice.

How does this relate to the €0.35 per transaction rate in the main pricing? That applies when your data comes from a single source in a clean export and only needs converting. Reconciliation is for cases where several sources must be merged, transfers matched and missing rates filled in. Different work, different price.

Is it safe?

Yes. Read-only inputs are all we need: exports, statements, read-only API keys or public wallet addresses. We will never need your private keys, seed phrases or account passwords and never have access to your funds.

If read-only API keys still make you uncomfortable, plain CSV exports work just as well. It only means a few more clicks on your side.

Frequently asked questions

What if the exchange I used no longer exists?

Solvable. Cost basis can be reconstructed from other sources: your remaining statements, on-chain data, bank transfers and historical exchange rates. It is neither free nor instant, but it is a routine part of this work.

Do I have to give you access to my accounts?

No. Exports or read-only access are enough. We cannot reach your funds and do not need to.

Is crypto exempt after one year of holding?

Not for directly held cryptocurrency owned by an individual, where no holding period test exists. The one-year exemption applies to securities under Section 9(1)(k) of the Income Tax Act, for example crypto ETPs sold on a regulated market. Confusing these two worlds is one of the most common errors we come across.

Do you also prepare the tax return itself?

Yes. Reconciliation is the natural first step, and the return follows on from it if you want. See the pricing.

Can I hand the result to my own accountant?

Absolutely. The report is prepared so that your accountant can work with it. You receive it in XLSX and PDF.

How long does it take?

Depending on scope, typically 5 to 10 working days from receipt of complete records. Reconstructing missing data or covering several years at once takes longer. We confirm a specific date during the consultation.

Do you do this for companies as well?

Yes. For an s.r.o. the output feeds directly into bookkeeping and the financial statements, so it connects to corporate tax return preparation. The work is the same, only the result is booked differently.

Transactions in a mess? Get in touch.

Book a free consultation and we will tell you what is involved and what it will cost, before anything gets started.

We reply within 24 hours. Payment in EUR, USDC or BTC.