Side income from surveys and apps: do I have to pay tax on it?

Earning a few euros from surveys rarely creates a tax problem. Never checking sometimes does.

The short answer

This text is general orientation for people in Germany, not tax advice or a legal opinion. Whether and how your income counts is decided by the tax office based on your situation. What matters is keeping two thresholds apart that many articles blur: the tax-free limit for miscellaneous income and the threshold for having to file a tax return. Both are set in the Income Tax Act (EStG), and both refer to income over the year, not to single payouts.

What counts as income at all?

Money: payouts by bank transfer, PayPal or voucher that you receive for taking part, testing or completing tasks.
Rewards in kind and vouchers: these can also count as a benefit. How to value them is something to clarify with the tax office or a tax adviser if in doubt.
Not the same thing: selling used items, cashback on your own purchases and bonus points can be treated differently for tax. Separate rules may apply that this text does not cover. The tax administration publishes notes on selling used goods.

Threshold 1: the 256 euro limit (miscellaneous income)

Income from services that falls under no other category is, under section 22 no. 3 EStG, not taxable if it is below 256 euros in the calendar year. Two things matter:

It refers to income, not receipts. That means the surplus of receipts over related expenses, so what is left after deducting connected costs.
It is a limit, not an allowance. If you reach or exceed it, the entire amount is taxable, not just the part above it.

Whether your survey or app earnings fall under this rule is a classification question. Some market research institutes themselves tell participants that they are responsible for taxing it properly and that compensation payments may count as miscellaneous income.

Threshold 2: 410 euros and the tax return (employees)

If you receive wages with tax withheld, section 46(2) no. 1 EStG provides, among other cases, for an assessment, meaning a duty to file an income tax return, when the positive sum of your taxable income that was not subject to wage tax withholding exceeds 410 euros. This means all such income together, not only income from surveys or apps. The provision also mentions deductions under section 13(3) and section 24a EStG, and further cases in which a return is required. This threshold is about the duty to file. It does not replace the 256 euro limit, and on its own it does not say how much tax is due.

The duty to file and the tax actually owed are two separate questions. If such income without withholding totals no more than 410 euros, section 46(3) EStG deducts an amount of that size from your income. For cases just above 410 euros, section 46(5) EStG provides for a relief by ordinance that moves gradually to full taxation. So if you exceed the threshold you must file, but you do not necessarily pay the full additional tax on the whole amount. What applies in your case is for the tax office to decide.

The two apply one after the other: first whether the income is taxable (threshold 1), then whether that obliges you to file (threshold 2). If you file voluntarily, for example to get a refund, taxable income belongs in the return anyway. Filing voluntarily is itself a case under section 46(2) EStG (no. 8, assessment on application). The two reliefs have different prerequisites, though. The deduction under section 46(3) EStG applies to all cases of subsection 2, so it also covers an assessment on application. The relief above 410 euros is narrower: section 46(5) EStG authorises it only for cases under subsection 2 no. 1, and the ordinance (section 70 of the Income Tax Implementation Ordinance, EStDV) expressly names nos. 1 to 7, not no. 8. How this affects your case is for the tax office to decide. According to the tax administration's notes, miscellaneous income goes in the form "Anlage SO".

When does it become more than side income?

Regular, ongoing activity with the aim of making a profit can count as self-employed or commercial activity. Different rules then apply (business registration, profit calculation, possibly VAT). Where the line sits depends on the case. If you spend many hours every week on paid studies or microtasks, talk to the tax office or a tax adviser first.

What platform reporting changes

Since 2023, operators of certain internet platforms have had to report information about sellers to the tax authorities. The tax administration states that this created no new tax obligations for citizens. The rules cover the sale of goods, personal services and rentals. Whether a survey or app platform falls under them is not decided by this text. What matters: if you are not reported, you are not automatically tax-free, and if you are reported, you are not automatically liable.

What you can do in practice

Keep records. Note date, provider and amount of each payout. Payout confirmations and bank statements are enough as proof.
Note costs. If the activity demonstrably cost you money, write it down. Whether it can be deducted is for the tax office to decide.
Add up the year. At year end, sum the payouts across all providers (receipts) and subtract demonstrable costs (income). The 256 euro limit refers to your miscellaneous income from services as a whole. For the 410 euro threshold, all your taxable income without wage tax withholding counts together, including income from other sources. The two rules differ, so calculate them separately.
Ask when unsure. The tax office gives general information; a tax adviser helps with your situation. Asking before year end beats asking after the assessment.

Checklist

All payouts of the year noted with date and amount.
Income (after costs) compared with the 256 euro limit.
Checked whether the sum of your taxable income without wage tax withholding exceeds 410 euros, so that you, as an employee, must file. Duty to file and tax actually owed considered separately.
Rewards in kind and vouchers not forgotten.
Tax office or adviser asked if the activity is regular and extensive.
Amounts and rules for the specific year confirmed with the tax administration.

Good starting points before taxes: the microtasks guide and the checks for legitimate survey sites. What providers pay out is in the profiles in the comparison.

Sources (checked 20 Oct 2026; all German-language)

Amounts and rules can change. Please check them for the relevant year with the tax administration. Bytearium does not give tax or legal advice.