Solobooks
Income tax return

Fill in your return and see your refund. You pay only when you submit.

The assistant takes you through the entire income tax return and shows your estimated refund. Then you decide whether to submit. €24.99 one-off, no subscription.

Start for free → How it works
  • Create an account without a card
  • No subscription
  • GDPR-compliant, servers in Germany

Income tax return

No subscription

One return, one price. You pay at the moment you submit.

€24.99 one-off

incl. VAT · One-off payment, no subscription, no automatic renewal.

Start for free →

Payment only when you submit · Create an account without a card

Included in the price

  • Guided assistant for the whole form
  • Estimated refund before you pay
  • Joint return for married couples
  • Submission to ELSTER incl. receipt
  • Support in German and English
How it works

Four steps to your submission receipt

You see the whole path before you begin.

  1. 1

    Create an account (no card).

    Email and password are enough. No payment details, no commitment.

  2. 2

    Answer the assistant's questions.

    The assistant asks in plain language and fills in the forms for you.

  3. 3

    Pay €24.99 when you submit.

    You see the result first. If you decide against it, you pay nothing.

  4. 4

    Receive your ELSTER submission receipt.

    The proof of submission is then stored in your account.

Refund estimate

You see the result before you pay

Solobooks calculates your estimated refund while you fill in the return. You see the figure before any payment is due.

  • Updates with every entry
  • Shows which entries change the amount
  • No payment and no submission without your confirmation
Your 2026 return Example view

Estimated refund

€1,284.00

An example figure for illustration, not a promise. The actual amount depends on your entries and the tax office's assessment.

Anlage N: employment
complete
EÜR: self-employment
complete
Insurance and pension
2 questions open

You submit and pay only in the last step.

Scope

What the assistant covers, and what it doesn't

So you know in two minutes, not after two hours.

What Solobooks is built for

The assistant takes you through these cases in full.

  • Employment income (Anlage N)
  • Investment income (Anlage KAP)
  • Self-employment (EÜR)
  • Joint return for married couples
  • Children
  • Insurance and pension contributions
  • Special expenses
  • Household services
  • Extraordinary burdens
  • Home office
  • Wage replacement benefits

For these you need something else

The assistant cannot record this income. We tell you now so you don't get stuck halfway through.

  • Rental income Not covered: income from let property.
  • Pensions (Anlage R) Not covered: state and private pensions.

If either of these applies to you, our assistant is not the right tool. A tax adviser or a program with the full range of forms will serve you better.

Deadline

The filing deadline for tax year 2026 is

02.08.2027

The statutory date, 31.07.2027, falls on a Saturday. The deadline therefore moves to the following Monday.

Other deadlines

With a tax adviser, tax year 2025
01.03.2027
Voluntary filing, tax year 2025
31.12.2029
Start now for free

Already have a Solobooks subscription? Your income tax return is included in your plan. Just sign in. Go to your account

Solobooks is not a tax advisory service. We prepare your information and submit it to ELSTER. All prices include German VAT.

Starting costs nothing

Create an account, answer the questions and see your refund. You pay only when you submit.

Start for free → Check what's covered

€24.99 one-off incl. VAT · no subscription, no automatic renewal