Flexible Invoice Finance for your business

With the GRENKE Cashflow Optimizer.

Do you run a business? Then you’ll know how important it is to quickly access your cash flow and have funds available to drawdown. We can help you with our online solution for quick and easy invoice financing – the flexible alternative to traditional invoice discounting.


We finance your invoice when you need it


We pay your invoice within 24 hours


We take on the entire default risk for you

Calculate your payment amount now

Every invoice is different – but our costs always remain transparent. With our Invoice Finance calculator, you see the fee that incur at a glance. Try it out for yourself.

Service fee
Your payment amount within 24 hours

Your total payment amountInfo


Submit your invoice now and maximise your cash flow.

Invoice Finance – the easy way

Our online process makes single invoice discounting really easy for you. Upload your invoice and see for yourself.

Clear and intuitive

The GRENKE Cashflow Optimizer guides you through the request process step by step.

Transparent and in real time

Simply enter your invoice amount along with the corresponding payment period. The GRENKE Cashflow Optimizer will calculate the payment amount for you immediately.

Digital and online

Upload your invoice conveniently as a PDF – no postage and no printouts. We make it as easy as possible, allowing you to concentrate on your core business.

Get your money in just 3 steps

With the GRENKE Cashflow Optimizer, Single Invoice Finance can be carried out online quickly and securely. This converts your invoice into cash in the shortest possible time.

Sign agreement digitally only once

Maximise cash flow

Find the best cash flow solution for your business

Personal, all-round service or maximum flexibility – what is more important to you? With GRENKE, you get both and will find the perfect cash flow solution for your needs. Compare our standard GRENKE Invoice Finance Service and the GRENKE Cashflow Optimizer today.

Always there when you need it: 

The GRENKE Cashflow Optimizer 

All-round, carefree package:

GRENKE Invoice Finance

Payment within 24 hours

No long-term contract

No minimum sales

Comprehensive debtor management*

Protection against default

Fast online process

Personal service

Is the GRENKE Cashflow Optimizer the right product for your business?

Want to know more about our standard GRENKE Invoice Finance Service?

GRENKE: Your financing specialist

With GRENKE, you benefit from decades of experience in Invoice Financing for small business. We see ourselves as an SME through and through, and trust between us and our customers is our top priority. We understand the needs of small and medium-sized enterprises and always keep their goals and challenges in mind. This includes speed and flexibility in working capital finance. With the GRENKE Cashflow Optimizer, we offer a funding solution that meets these requirements in full. 

  • Independent of banks and investors
  • Simple and transparent pricing
  • An SME working for SMEs

Cash flow optimisation for your company

The GRENKE Cashflow Optimizer offers you maximum flexibility and speed in Single Invoice Finance. Submit individual invoices in line with your specific requirements – without entering into a long-term contract. 


Curious? Just give flexible Invoice Finance a try with the GRENKE Cashflow Optimizer.