Services
What we handle for you
From ongoing bookkeeping to catching up on several years’ worth of records: all our services at a glance. We price them individually, on request. You’ll receive a binding quote after completing a short questionnaire.
Ongoinghandled every month
Ongoing bookkeeping
We post receipts and bank transactions in DATEV or Lexware Office and reconcile your accounts. You get a monthly report and a clear list of what’s still missing.
Payroll
Payslips, monthly contribution statements to health insurance funds, and wage tax returns, including for hourly wages, mini-jobs, and collectively agreed wages.
External bookkeeper
Too many transactions, not enough staff? A dedicated bookkeeper from GKM handles your bookkeeping for agreed monthly hours, digitally and on site when needed.
Getting things in orderdone right, once
Catch-up bookkeeping
Months or years without bookkeeping, wrong entries, or your advisor is gone? We review, plan, and bring everything up to date. We quote the fixed price after a backlog check.
Switch bookkeepers
We request the data and DATEV records from your previous advisor and continue posting seamlessly, even in the middle of the year.
Digitization
Receipts via app or email, bank transactions via bank statements in the portal, filed in accordance with GoBD. We’ll set it up and train your team.
Implementing e-invoicing
Businesses have had to receive e-invoices since 2025; from 2027, those with prior-year revenue above €800,000 must also issue them, and from 2028, all businesses. We review your processes, choose the software, and set up receiving and sending.
Setting upfigures you can build on
Startup and restart
Business plan, financial plan, business account, website, templates, and bookkeeping starting with the very first receipt.
Business consulting
Plan your cash flow, understand the numbers, and prepare for meetings with the bank.
Rekana Rechnung
Write quotes, invoices, and e-invoices yourself and match receipts to bank transactions. The first three months are free. Businesses based in Germany can order directly online.
Process
How to become a client
Everything is handled without paper or mail. You choose your start date in the questionnaire: immediately, next month, or next quarter.
Submit a request
You answer a few questions about receipts, accounts, and employees. It takes about 3 minutes.
Receive a quote
The quote arrives by email, tailored to your business. We only ask for what we need for bookkeeping.
Sign online
You sign the contract, Under a data processing agreement, a service provider processes personal data only on instructions, on the basis of a contract under the GDPR., and A power of attorney allows another person to act in your name, for example to request documents from your previous advisor. in the client portal. If you work with our partner tax advisor, you also sign a power of attorney for them. The signed documents are sent to you by email right away.
Upload documents
You upload your documents in the client portal. With your approval, we’ll request the data from your previous advisor ourselves.
With your tax advisor
Working with our partner tax advisor
Clearly divided: we handle your bookkeeping and payroll. In the advance VAT return, Umsatzsteuer-Voranmeldung, a business reports VAT minus input VAT to the tax office monthly or quarterly., The annual financial statements close a fiscal year with a balance sheet and a profit and loss account; smaller businesses determine their profit with a cash-basis income statement instead., and tax returns are handled by the tax advisor you engage yourself, for example our partner tax advisor. When we post in their DATEV records, they work directly with our entries, with no separate data handover and short lines of communication. We’re also happy to work with your own tax advisor.
We set up the The chart of accounts is the list of all accounts a business posts to, usually based on SKR03 or SKR04., record ongoing business transactions, run payroll, and prepare In the wage tax return, Lohnsteuer-Anmeldung, the employer reports the wage tax withheld from employees to the tax office, usually monthly.. Every month, we reconcile the accounts and pass the figures on to your tax advisor.
You hire the tax advisor directly, with your own contract and billing arrangement. If you don’t have one yet, we can put you in touch with our partner tax advisor, with whom we work closely.
How we work with tax advisorsThe tax advisor handles the following on your behalf
- Advance VAT returns
- Annual financial statements and cash-basis income statement
- Tax returns
- Tax advice
- Liaison with the tax office
Find a tax advisor
We note key details such as legal form, size, and industry, and put you in touch with our partner tax advisor. Tax advice itself comes from the tax advisor. The introduction is free and without obligation.
Contact
Let’s talk about your bookkeeping.
During our initial consultation, we’ll determine what your business needs. Afterward, you’ll receive a binding quote via email.
- Office
- Gerhofstraße 1–3
20354 Hamburg