Invoicing7 min
Turn Mollie payments into invoices automatically
Does your own website take payments through Mollie? See how each payment becomes a numbered invoice with VAT and a PDF, with no plugin and no double work.
Articles by Mehmet Karabulut
Entrepreneurship7 min
How to Become a Freelancer in the Netherlands: A Step-by-Step ZZP Guide
Want to start a business in NL as a sole trader? This guide covers KVK registration, your Dutch VAT number, a business bank account, and your first invoice.
Entrepreneurship7 min
How to Calculate Your Freelance Hourly Rate: Formula and Worked Example
Freelance hourly rate calculator logic explained: the formula, a worked example, and how to sanity-check your rate against the market before you quote a client.
Marketplaces6 min
The Benefits (and Challenges) of Selling Across Multiple Channels
Discover the benefits of multichannel selling and the admin challenges it creates. Learn how to manage multiple sales channels without losing control.
Entrepreneurship6 min
Keeping a Cash Book and Creating Credit Notes: A Freelancer's Guide
Should you keep a cash book in Excel or go digital? And how do you create a credit note for a return? A practical guide with examples for freelancers.
Entrepreneurship8 min
Comparing Accounting Software for Freelancers: Which One Fits You?
Comparing accounting software for freelancers? Learn the difference from an invoicing tool and how slimzaak connects with 9 accounting platforms, including Exact and Moneybird.