Germany Solidarity Surcharge (Soli) 2025 — Who Still Pays and How Much?

Correction, 31 July 2026. This page used the 2024 Freigrenze of €18,130 / €36,260, and — more seriously — stated the calculation as (income tax − Freigrenze) × 5.5%. That is not the rule. The Freigrenze is a threshold, not an allowance: once you are past it and past the Milderungszone, the 5.5% applies to your whole income tax, not to the excess. Every worked example below has been recomputed from §§3–4 SolzG 1995 at the 2026 Freigrenze. The old formula understated the surcharge by roughly half at higher incomes.

The Solidaritätszuschlag (solidarity surcharge) was introduced in 1991 to fund German reunification. Originally paid by all earners, a 2021 tax reform exempted ~90% of the population. Now only top earners pay Soli.

Who Pays Soli in 2026?

You pay Soli if:

• Your annual income tax exceeds the Freigrenze: €20,350 (single) or €40,700 (jointly assessed) for 2026 — up from €19,950 / €39,900 in 2025 and €18,130 / €36,260 in 2024
• You are a German resident
• You have German-source income (wages, self-employment, capital gains)

You do NOT pay if:

• Your income tax is at or below the Freigrenze
• You are non-resident or have no German income

But note: the Freigrenze applies to assessed income tax. Soli on Abgeltungsteuer withheld at source is charged in full regardless of it — see the capital gains section below.

2026 Soli Freigrenze and Rate

How Soli Is Actually Calculated (§§3–4 SolzG 1995)

Three regions, not two:

1. Income tax ≤ Freigrenze → Soli is zero.
2. Just above the Freigrenze (the Milderungszone) → Soli is capped at 11.9% of the excess over the Freigrenze. This is a taper, not a 5.5% rate on the excess.
3. Above the Milderungszone → Soli is the full 5.5% of the entire income tax.

Formally: Soli = min(5.5% × income tax, 11.9% × (income tax − Freigrenze)), and 0 below the Freigrenze.

Where the Milderungszone ends falls out of setting the two expressions equal: 0.119 × (T − F) = 0.055 × T → T = 11.9F ÷ 6.4. With F = €20,350 that is T = €37,838, so from an income tax of about €37,839 you pay the flat 5.5%.

Examples (single, 2026 Freigrenze €20,350)

Example 1: income tax of €25,000

• 5.5% of €25,000 = €1,375.00
• 11.9% of (€25,000 − €20,350) = 11.9% × €4,650 = €553.35
• Soli = the lower: €553.35 — still inside the Milderungszone

Example 2: income tax of €30,000

• 5.5% of €30,000 = €1,650.00
• 11.9% × €9,650 = €1,148.35
• Soli = €1,148.35 — still tapered

Example 3: income tax of €50,000

• 5.5% of €50,000 = €2,750.00
• 11.9% × €29,650 = €3,528.35
• Soli = €2,750.00 — past the Milderungszone, so the full 5.5% on the whole amount

Under the old (wrong) formula on this page, Example 3 would have come out at €1,631 — about 41% of the real figure.

Impact on Take-Home Pay

The surcharge is a function of your income tax, not of your gross salary, so this table is keyed on income tax. What gross salary produces a given income tax depends on your Steuerklasse, deductions and Vorsorgeaufwendungen — use the Bundesfinanzministerium's own Lohn- und Einkommensteuerrechner to make that link for your own case.

Who Historically Paid Soli (Pre-2021)

Before 2021, Soli applied to most earners:

• Rate: 5.5% of income tax
• Threshold: €0 (everyone paid)
• Annual cost per worker: ~€50–€100 (very low impact on middle class)

The 2021 reform exempted 90% of earners, leaving only top earners affected.

The Milderungszone Is Wide, Not Narrow

The taper is not a €1,000 sliver. For a single filer in 2026 it runs from an income tax of €20,351 to €37,838 — an interval nearly as wide as the Freigrenze itself, over which your effective Soli rate climbs from near zero to 5.5%.

Inside it, the marginal Soli rate is 11.9%: every extra euro of income tax carries almost twelve cents of surcharge, more than twice the headline 5.5%. That is the price of removing the cliff, and it is worth knowing if you are deciding whether to bring income forward.

Employer vs. Employee Contributions

Soli is withheld from payroll. The employer deducts it alongside Lohnsteuer and church tax using the official Programmablaufplan, which applies a monthly equivalent of the Freigrenze. The annual return then trues it up.

For Employees

• Withheld monthly with Lohnsteuer — check your Lohnabrechnung, it has its own line
• Settled on the return: the Finanzamt recomputes Soli on the assessed income tax
• Payment or refund: follows the income tax assessment

For Self-Employed

• Calculated manually: Must include in quarterly tax estimate (Vorauszahlung) if owed
• Adjustment on return: Finanzamt may increase/decrease based on actual income

Strategies to Minimize Soli

1. Income Smoothing (Self-Employed)

If you're self-employed with irregular income:

• Defer invoicing to the next year if you are close to the Freigrenze
• Bundle expenses into the current year (lower profit = lower income tax = lower Soli)
• The target to aim below is an income tax of €20,350, not a gross income figure. Because the taper's marginal rate is 11.9%, the saving from shifting income is largest inside the Milderungszone and shrinks once you are past €37,838 of income tax, where the rate is a flat 5.5%

2. Maximize Deductions

Claim all available deductions to lower taxable income:

• Home office (€1,260/year)
• Professional development
• Retirement contributions (Riester, Rürup)
• Donations
• Medical costs (above threshold)

3. Retire into Lower Bracket

Delay retirement by 1–2 years, then retire. First year of low pension = no Soli. Ongoing pension income usually too low to trigger Soli.

4. Claim Dependent Benefits

The Freigrenze doubles on joint assessment:

• Married couples, jointly assessed (2026): €40,700 of income tax
• It is one doubled Freigrenze on the couple's joint income tax, not two separate ones — you do not get to allocate it between spouses

5. Split Income (Married)

If married with unequal income, consider filing separately (unusual in Germany but possible):

• Spouse A: €25,000 income tax → Soli €553.35 (Milderungszone)
• Spouse B: €50,000 income tax → Soli €2,750.00 (full 5.5%)
• Separate assessment: each gets their own €20,350 Freigrenze, but loses Ehegattensplitting
• Almost never worth it: the splitting benefit on unequal incomes is normally far larger than anything the Soli Freigrenze can save

FAQ

Q: If I live abroad, do I owe Soli on German income?
A: If you're non-resident with German-source income (pension, rental, etc.), Soli may apply depending on your tax treaty. Consult your country's tax authority.

Q: Can I deduct Soli on my next year's return?
A: No. Soli is not deductible. It's a surcharge on income tax and stands alone.

Q: Is the Soli constitutional?
A: The Bundesverfassungsgericht considered a challenge to the post-2021 Soli and it survived. Treat abolition as a political question rather than an imminent legal one.

Q: When was Soli introduced and why?
A: 1991, to fund German reunification. Originally intended as temporary but became permanent. 2021 reform exempted most earners.

Q: Will Soli ever be abolished completely?
A: Unknown. The political consensus is to keep it for high earners (budget revenue justification). Unlikely to be eliminated soon.

Q: Does Soli apply to capital gains?
A: Yes — and the Freigrenze does not protect you here. Where investment income is taxed by withholding under the Abgeltungsteuer, the bank deducts 25% Kapitalertragsteuer plus 5.5% Soli on that tax from the first euro above your Sparer-Pauschbetrag. 25% × 1.055 = the familiar 26.375% headline. The €20,350 Freigrenze applies to assessed income tax, not to tax withheld at source, so someone who pays no Soli on their salary can still pay it on their dividends.

This is educational information, not financial advice. Consult a German tax advisor for personalized guidance on minimizing your Soli liability.