Why does the tax statement differ from my trading journal?

Because the two documents measure different things. Your journal measures the result of your trading, the statement measures a tax base. Four causes explain almost every discrepancy. First, the income shown has already been reduced by losses offset within the institution and by the allowance you used there, whereas your journal reports both separately. Second, what counts for tax is when income arose in the calendar year rather than your trading date, so trades around the year end occasionally land in the other year. Third, the statement contains no open positions while your own analysis often does. Fourth, an order filled in several parts is one trade in your journal but several events in the statement, each with its own costs, and not every cost is deductible.

What does the capital income figure actually represent?

Not your gross profit but a balance. Gains have already been reduced by losses offset within the same institution, by the annual allowance you used there, and by directly attributable transaction costs. That is why the figure can be substantially lower than what you actually earned during the year, and in certain constellations zero even though you traded profitably. To compare it with your journal you have to add the allowance used and the offset losses back in, otherwise you are comparing a net figure against a gross one and hunting for an error that does not exist. Treat this as the first step of any reconciliation rather than as evidence of a mistake.

Why is my loss pool missing from the statement?

Because the unoffset losses item appears only if you requested a loss certificate. Without that request your losses stay in the institution's loss pool and are carried into the following year there, without appearing on the annual statement at all. The request is tied to a deadline within the calendar year. The separate tracking matters too: losses from selling shares are shown apart from other losses, because they may only be offset against gains of the same kind. Additional offsetting restrictions have applied at times to certain other transaction types, and their status for your assessment year is worth checking against current law rather than assumed.

What should I check as soon as the statement arrives?

Four points, all done in minutes and all easier to fix while the year is fresh. First the personal data, meaning name, tax identification number and church tax attribute, because errors there affect the deduction itself. Second the allowance shown as used, checked against your other institutions, since that is the only way to spot an unused remainder. Third whether a loss certificate would have been worthwhile, which for the current year is tied to a deadline. Fourth completeness, meaning whether all accounts and sub accounts held with that provider are included. Only after those four does a detailed reconciliation against your own journal become worth the time.

German Broker Tax Statement: Reading It Line by Line

Q: Do I have to declare the statement in my tax return?

Not necessarily in every case. Where tax was withheld in full and everything fits, the entry can be unnecessary. In several situations, though, declaring is sensible or required, because otherwise you leave money behind. Those include an annual allowance not used up across several institutions, losses at one institution and gains at another, a personal tax rate below the flat rate, foreign income with no German withholding, and creditable foreign tax. You normally do not submit the statement itself, but you must keep it and produce it on request. Which case applies to you is worth clarifying with professional advice where the answer is not obvious from the document.

A German annual tax statement is not a profit and loss account of your trading year. It documents what your broker withheld and paid to the tax office during the calendar year. That is why the figure shown as capital income almost never matches the total in your journal, and the mismatch is a difference in accounting logic rather than an error.

What is the annual tax statement?

Evidence from your institution of the capital income arising in the calendar year and the tax withheld on it. It is strictly institution specific: a second account at another provider does not appear in it, and figures from two statements only come together in your tax return.

At a German bank or broker, tax is withheld and paid over automatically, and the statement documents that process. Foreign providers generally do not withhold German tax, so there is no statement of this kind at all, at most a report you have to interpret yourself.

The item labels follow an official template and are largely uniform. Layout and ordering still differ between providers. What follows describes the mechanics; your provider's document is what binds.

Which items appear and what do they mean?

Amount of capital income

The central figure and the most misread one. It is not your gross profit but a balance: gains less any losses offset within the same institution, less the allowance you used there. Directly attributable transaction costs have already been deducted.

That is exactly why the figure can be lower than what you earned during the year, and in some constellations zero even though you traded profitably.

Withheld tax, solidarity surcharge and church tax

Three separate items. The withholding tax is the actual deduction on your income, the solidarity surcharge is levied on that withholding tax rather than on the income itself, and church tax appears only where your institution is obliged to deduct it.

These amounts have already been paid. In your tax return they function as credits, meaning they are set against your actual liability and refunded where too much was withheld.

Allowance used

Shows how much of your annual allowance was consumed at this institution. It is the single most important control figure when you hold several accounts, because only there can you see whether the allowance was used in full or whether part of it sat unused at an institution with no income. How to distribute it is covered under German withholding tax for traders.

Unoffset losses

This item appears only if you requested a loss certificate. Without that request your losses stay in the institution's loss pool, are carried into the following year there, and simply do not appear on the statement.

Note also the split presentation: losses from selling shares are tracked separately from other losses, because they can only be offset against gains of the same kind. Additional offsetting restrictions have applied at times to certain other transaction types. Whether and in what form they apply to your assessment year is something to check against current law or with professional advice. The groundwork sits in offsetting trading losses in Germany.

Foreign tax

Where tax was already levied abroad on income such as distributions, it appears in two forms: creditable foreign tax and foreign tax not credited. The first reduces your liability here, the second does not do so automatically.

Why does the figure not match my journal?

Because the two measure different things. Your journal measures the result of your trading, the statement measures a tax base. Four causes explain almost every discrepancy.

Offsetting and the allowance. The income shown has already been reduced by losses and by the allowance used, whereas your journal reports both separately.
Cut off timing. What counts is when income arose for tax purposes in the calendar year, not your trading date. Trades around the turn of the year therefore occasionally land in the other year.
Open positions. Unrealised gains and losses appear in no statement, while your own analysis often includes them.
Partial fills and costs. An order filled in several parts is one trade in your journal and several events in the statement, each with its own costs. On top of that, not every cost is deductible, flat account fees among them.

What do you do when the two diverge?

Narrow it down in this order rather than guessing. The effort pays, because you either find a genuine error or understand why the difference is structural.

Align the period. Restrict your journal precisely to the calendar year and look separately at trades around the year end.
Reduce to realised events. Take open positions out of the comparison.
Add back the allowance and offset losses. Only then is the statement figure comparable with your gross result.
Check the cost items. Compare your recorded costs against the provider's cost statement and separate directly attributable costs from flat fees.

If an unexplained difference remains, the order is clear: ask the provider first and request a breakdown of the underlying events, then seek tax advice. A trading journal with complete timestamps and costs turns this reconciliation into an hour of work rather than a reconstruction.

What does the reconciliation look like as arithmetic?

An example with invented round figures, meant only to show the logic. Suppose your journal reports a realised gross result of 4,000 euros for the year, made up of 5,000 euros of gains and 1,000 euros of losses. The statement, however, shows only 2,000 euros as capital income.

The gap resolves in three steps. First, the 1,000 euros of losses have already been netted off, while your journal tracks them separately. Second, part of the annual allowance was used, which reduces the reported income further. Third, directly attributable transaction costs have been deducted, and those sit in a column of their own in your journal.

Add those three items back and you arrive at your gross result, at which point the numbers agree. If a gap remains after that, it is a genuine signal rather than accounting logic, and that is exactly the point at which a question to your provider is worth asking.

Do you need the statement for your tax return?

Declaring these figures is not mandatory in every case. Where tax was withheld in full and everything fits, the entry can be unnecessary. In several situations, though, declaring is either sensible or required.

Those include in particular: an allowance not used up across several institutions, losses at one institution and gains at another, a personal tax rate below the flat rate, foreign income with no German withholding, and creditable foreign tax.

Which of those applies to you decides whether money comes back. You normally do not have to submit the statement itself, but you do have to keep it and produce it on request.

What is not in it?

Three things people look for and do not find. First, the balance of your loss pools, unless you requested a loss certificate. Second, income and events at other institutions. Third, anything that does not count as capital income.

Then there is the practical point: the statement does not replace a trading history. It reports totals, not individual events. Anyone who has to evidence the acquisition cost of a position years later needs the contract notes and exports, and those disappear with the account. What gets lost when you move providers is covered in switching brokers and which records you lose.

What should you check as soon as it arrives?

Four points, all done in minutes and all easier to correct while the year is fresh.

First the personal data, meaning name, tax identification number and church tax attribute, because errors there affect the deduction itself. Second the allowance used, checked against your other institutions. Third the question of whether a loss certificate would have been worthwhile, which for the current year is tied to a deadline. Fourth completeness: are all accounts and sub accounts at this provider included?

This article is not tax advice. It explains how the document is built so you can ask the right questions. For your specific situation your provider's documentation and, where appropriate, professional tax advice are what count.

Reading Your German Broker Tax Statement Line by Line