Dutch taxes, minus the dread.
Kwartaal guides you through the Dutch tax year — what's due, what every number means, and how much to set aside. It never files for you; it makes sure you understand what you file.
A client just paid you. Now what?
Type the amount — Kwartaal shows what's yours, what's btw, and what to reserve for income tax.
Never meet a deadline by surprise
Four btw quarters and one annual return — that's the whole year. Kwartaal watches the calendar so you don't have to, and writes to you like a person when something needs doing.
Hi Maya — Q3 closed on 30 September. Your checklist is ready: invoices and receipts are already in the Vault, so this takes about 25 minutes.
Open the Q3 checklistUnderstand every number you file
Kwartaal mirrors the official form and explains each figure in plain language — before you type it into Mijn Belastingdienst. Estimates, clearly marked; the Belastingdienst has the final word.
Learn the Dutch words as you go
The official forms are in Dutch — so Kwartaal keeps the Dutch terms, explains each one the first time, and dots it ever after. By your second quarter, the form reads like yours.
Your reclaimable for Q3 is €610 — it comes off what you owe.
Kwartaal doesn't file your return, doesn't do your bookkeeping, and doesn't replace your bookkeeper. It guides, estimates, and reminds — you stay the one who files, and the one who understands why.
"Placeholder testimonial — two sentences in the customer's own words about the first quarter they closed without dread."
Your next deadline can feel like this.
Set up in ten minutes. Kwartaal takes it from there.
Start free — your first quarter is on us