Tax Loss Harvesting: Utilize Losses for Tax Purposes and Reduce Your Tax Burden
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Tax Loss Harvesting: Utilize Losses for Tax Purposes and Reduce Your Tax Burden
Tax loss harvesting refers to the deliberate realization of price losses in order to offset capital gains from other securities for tax purposes. When you sell a stock at a loss, you can offset this loss against stock gains in the same tax year and thus reduce the capital gains tax owed. In Germany, this loss offsetting is handled through loss offset buckets at your bank, which automatically nets gains and losses against each other.
What does Tax Loss Harvesting mean?
The idea is simple: stocks in your portfolio that are trading below your purchase price are sold. The realized loss reduces the tax base for capital gains tax. The proceeds are then invested in a similar security to maintain your market position. This way, your investment strategy remains intact while the state receives less of your earnings.
The term originally comes from US tax law. There, investors can deduct up to 3,000 US dollars in losses per year against regular income. In Germany, different rules apply, but the basic principle remains the same: utilize losses for tax purposes to reduce your tax burden.
Tax deferral rather than tax savings
Tax loss harvesting does not eliminate taxes; it defers them. The postponement works like an interest-free government loan: capital that would otherwise flow out as taxes remains invested longer and generates additional returns. Taxation only occurs when you later sell the new security.
Capital Gains Tax on Investment Income in Germany
The German state levies a flat rate of 25 percent capital gains tax on price gains, dividends, and interest. Add to this the solidarity surcharge of 5.5 percent on the tax and, if applicable, church tax. The effective burden on capital assets is thus around 26.4 to just under 28 percent.
What is capital gains tax?
Capital gains tax is the concrete form of levy for flat-rate income tax on investment returns. Your bank withholds it when you sell securities and forwards it directly to the tax office. Investors typically do not need to declare these earnings themselves, provided there is no additional clarification required.
The saver's allowance as a tax-free amount
Every investor has an annual saver's allowance of 1,000 euros (2,000 euros for joint taxation). Investment income up to this threshold remains tax-free. Via an exemption order with your bank, you ensure that this amount is automatically taken into account and no unnecessary capital gains tax is withheld.
Realizing and offsetting losses
A loss only becomes effective for tax purposes when it is realized, that is, through the actual sale of stocks. A mere paper loss in your portfolio does not count. Once the sale is executed, the loss goes into the appropriate loss offset bucket and reduces the taxable gains there.
How does offsetting work?
Offsetting is automated through your bank. If you realize both stock gains and stock losses in the same tax year, these are netted against each other. Only the remaining net gain is taxed. If losses exceed gains, a negative balance remains.
A concrete calculation example
Suppose you sell stock A with a price gain of 5,000 euros and stock B with a loss of 5,000 euros. Without offsetting, approximately 1,320 euros in taxes would be due on the stock gain. Through loss offsetting, the loss from stock B completely offsets the gain, and the tax burden on this transaction drops to zero.
A second scenario: you realize 70,000 euros in gains from one sale and simultaneously realize 50,000 euros in losses. Instead of 70,000 euros, only 20,000 euros are taxed. At a capital gains tax rate of approximately 26 percent, you save several thousand euros this way.
Losses from stocks: the special limitation
In Germany, an important rule applies to stock losses: losses from the direct sale of individual stocks may only be offset against stock gains. They cannot be offset against dividends, interest, or gains from funds or ETFs.
Stock losses only offsettable against stock gains?
This restriction has sparked discussions for years. If you have only losses from individual stock sales but no corresponding stock gains, you cannot offset these losses against other investment income. The Federal Tax Court has expressed constitutional doubts; a final ruling on treatment from 2026 onwards is still awaited.
Two separate loss offset buckets
Your bank maintains two buckets for each account: a general bucket for other investment income and a separate bucket exclusively for stocks. This separation determines which losses can be offset against which gains.
- Stock bucket: only for gains and losses from the direct sale of individual stocks
- General bucket: for income from funds, ETFs, bonds, dividends, and interest
Banks manage loss offset buckets automatically
As long as you hold a single account at one bank, offsetting happens automatically. The bank continuously nets realized losses against gains and withholds capital gains tax only on the net amount. You don't need to report anything in your tax return.
Loss certificate with multiple accounts
If you hold accounts at different banks, things become more complex. Each bank maintains its own buckets and does not know the gains or losses of others. To offset losses at Bank A against gains at Bank B, you need a loss certificate.
Deadline for the certificate
You must request the loss certificate from your bank by December 15 of the current tax year. It documents the remaining losses in your bucket. You submit this certificate with Annex KAP in your tax return so the tax office can offset across multiple accounts.
Loss carryforward and tax return
If more losses than gains remain at year-end, they are not lost. The unused amount is carried forward to the next tax year as a loss carryforward. This way, losses reduce future stock gains once they occur.
The role of Annex KAP
If you want to offset losses from multiple accounts or establish a loss carryforward, Annex KAP in your tax return is the right approach. Here you enter your investment income, capital gains tax already paid, and documented losses.
When a tax return is worthwhile
A voluntary tax return with Annex KAP is worthwhile if too much capital gains tax was withheld. This often happens when the saver's allowance was not fully used or no exemption order was issued. With losses across multiple accounts, you can also recover overpaid taxes this way.
Losses from derivatives and their limits
For losses from derivatives, there was long a separate annual cap of 20,000 euros. This offsetting restriction was revised and retroactively eliminated through the Annual Tax Law.
What the Annual Tax Law changed
With the Annual Tax Law, separate treatment of losses from derivatives was largely abolished. Losses from such transactions can now be offset more comprehensively against other investment income. This significantly improves tax optimization in your portfolio for active investors.
ETF and Dividend Distributions: How to Save Taxes
For ETFs and funds, offsetting works differently than for individual stocks. Price gains and losses from ETFs go into the general bucket and can be flexibly offset against dividends and interest there. This offers more options than the strict stock bucket.
Use partial exemption for funds
Equity ETFs benefit from a partial exemption: 30 percent of returns remain tax-free because the fund already pays withholding tax at the asset level. This portion automatically reduces your tax base and increases the net return on your investments.
Distributing or accumulating shares
Whether a fund distributes or reinvests its earnings affects the timing of taxation. For accumulating ETFs, the advance surtax applies so that tax withholding is not completely deferred until sale. Both variants fall under the same loss offsetting in the general bucket.
Withholding Tax on Stocks and ETFs
Dividends from foreign stocks often are subject to withholding tax in the country of origin. Part of this withholding tax is credited against German capital gains tax, typically up to 15 percent. For a stock like Deutsche Bank Vermögensbildung, no foreign withholding tax applies because it is a domestic issuer.
Avoiding double taxation
If the withheld tax exceeds the creditable amount, you can reclaim the difference in the respective country. For ETFs, the fund structure handles some of this work, which is why taxation for private investors typically remains simpler.
When tax loss harvesting really pays off
The strategy delivers value especially when you have realized significant stock gains in the same tax year. Without matching gains, merely realizing losses offers little benefit because the loss carryforward then just waits.
Strategically exploit market volatility
In volatile markets, more opportunities arise to harvest losses. Those who regularly review their portfolio and do not wait until December often find securities trading below cost. Selling and reinvesting maintain your investment strategy while optimizing taxes.
Limits of the strategy
Saving taxes with stocks works only within legal rules. Those who realize losses for offsetting should factor in transaction costs and the spread on repurchase. Otherwise, trading costs eat away part of the tax advantage.
Practical Steps for Your Portfolio
Tax optimization in your portfolio follows a clear process. This sequence helps you not miss any deadlines and execute offsetting cleanly.
- Review your portfolio for positions with paper losses
- Identify realized stock gains from the tax year
- Realize matching losses through sales
- Reinvest proceeds in a comparable security
- For multiple accounts, request the loss certificate on time
Distribute exemption orders optimally
If you hold multiple accounts, you should split your exemption order among the banks where the highest income is earned. This allows you to fully utilize the saver's allowance of 1,000 euros and avoid unnecessary capital gains tax.
Frequently Asked Questions on Loss Offsetting
Is tax loss harvesting allowed in Germany?
Yes. Deliberately realizing losses for offsetting against gains is completely legal. Loss offsetting is explicitly provided for in the Income Tax Act. Later repurchase of the same or a similar security is also permissible.
How long does a loss carryforward remain valid?
A loss carryforward does not expire. Unused losses remain indefinitely and reduce future gains from securities once they occur. Offsetting happens automatically in the respective appropriate bucket.
Can I offset stock losses against interest?
No. Losses from the direct sale of stocks can only be offset against stock gains. Interest, dividends, and income from funds or bonds belong in the general bucket and remain separate from pure stock losses.
Does offsetting affect real estate?
No. Gains from real estate sales are subject to regular income tax, not capital gains tax. Losses from securities cannot be offset against such income because they are separate categories.
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Those who master loss offsetting improve the net return on their investments without increased risk. A close look at tax-free amounts, exemption orders, and the proper distribution across multiple accounts provides a solid overview of your own tax burden. With a properly maintained tax return, you can reclaim overpaid capital gains tax from the tax office and let your wealth work more efficiently.