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Bookkeeping firm in Hamburg · digital throughout Germany

Your bookkeeping, done every month.

We take care of your ongoing bookkeeping and payroll. You send your receipts by app, and your report is waiting in the client portal. If you need a tax advisor, we can bring one in.

The initial consultation is free and takes 20 to 30 minutes.

We offer consultations in German, English, and Armenian. The website and the client portal are available in several languages. You receive contracts in German and English, invoices in German or English.

Monthly overview October 2026Example
Business accountBank and bookkeeping balances matchreconciled
Postings this monthBank, cash, receipts112
Receipts matched110 out of 1122 missing
Report for OctoberBWA management report, trial balanceready
To the tax advisorData for the advance VAT returnhanded over
Sample view from the client portal, sample data

Packages

A package that fits your business

The exact price depends on your business. You receive a binding quote after a short questionnaire.

Bookkeeping

On requestcustom pricing

For businesses without staff.

  • Receipts and bank transactions posted every month
  • Accounts reconciled, open items tracked
  • Monthly report in the client portal
  • List of missing receipts and open questions
  • Figures ready for your tax advisor
  • Rekana Rechnung included

Recommended for businesses with staff

Bookkeeping and payroll

On requestcustom pricing

For businesses that pay wages.

  • Everything in the bookkeeping package
  • Payroll, including mini-jobs and hourly wages
  • Monthly contribution statements to health insurance funds
  • Wage tax return for the tax office
  • Payslips in the client portal
  • Rekana Rechnung included

With a tax advisor

On requestplus the tax advisor’s fee

For businesses that also need a tax advisor.

  • Bookkeeping, with payroll if you need it
  • Introduction to our partner tax advisor
  • Advance VAT returns, annual financial statements, and tax returns by the tax advisor
  • Reconciled figures go straight to them
  • Two contracts, one process
  • Rekana Rechnung included

You photograph the receipts, we post them, and the tax advisor takes care of the taxes.

Process

How it works

  1. 3 minutes

    Request

    You answer a short questionnaire about your business.

  2. by email

    Quote

    Your quote arrives by email within 2 business days.

  3. online

    Signature

    You sign the contract online in the client portal.

  4. every month

    Receipts

    You upload your receipts by app, ideally by the 5th of the following month.

Bookkeeping and taxes

We keep the books. The tax advisor handles the taxes.

Bookkeeping and taxes are separate jobs, so you pay the right price for each one.

What we do

  • Set up the chart of accounts
  • Post receipts and bank transactions
  • Reconcile accounts every month
  • Run payroll
  • Prepare the wage tax return

What the tax advisor does

  • Advance VAT returns
  • Annual financial statements
  • Tax returns
  • Tax advice and the tax office

Rekana Rechnung

Write invoices and e‑invoices, match receipts.

With Rekana Rechnung, you write quotes, invoices, and e-invoices compliant with EN 16931. You upload bank statements as files, and the program matches your receipts. You pass everything on to your tax advisor as files.

ZUGFeRDXRechnungEN 16931Bank statements as CAMT · MT940 · CSV · Excel
Document list in Rekana Rechnung with sample data: buttons for a new invoice, quote, and other document types, open amounts, and a list of invoices with their status
Rekana Rechnung, sample data

Software for your own use. This program is not a substitute for tax advice.

Industries

Bookkeeping that knows your industry

Every industry has its own receipts, payment methods, and payroll rules. We know them from our work in 155 industries and adapt to them before the first receipt arrives.

Frequently asked questions

What does bookkeeping at GKM cost?

We price bookkeeping and payroll individually. You receive your quote after a short questionnaire. More on pricing

Do you also do my tax return?

No. Tax returns, annual financial statements, and advance VAT returns are handled by a tax advisor. If you like, we can put you in touch with a tax advisor we work with.

How do my receipts get to you?

You photograph them with your phone or upload them in the client portal. You forward invoices you receive by email to your receipt inbox.

All questions
Phone
+49 40 2989 6395
Monday to Friday, 9 am to 8 pm
Email
info@gkm-buchhaltung.de
Reply within one business day
Office
Gerhofstraße 1–3
20354 Hamburg