VERI*FACTU arrives in 2027. Affected businesses will need to adapt their invoicing software. What it means for you →
Calculators for self-employed people and SMEs
Free calculators for VAT, income tax, self-employed contributions, hiring and filing deadlines. Estimate your figures in seconds and see what Zolven automates behind each one.
VAT calculator
Add or extract VAT from any amount. Taxable amount, VAT and total in seconds.
Self-employed invoice calculator
Calculate VAT and personal income tax withholding on an invoice. See the invoice total and net amount receivable.
Self-employed contribution
Your monthly and annual contribution by income band under Spain’s income-based contribution system.
True cost of hiring
From gross salary to total employer cost, with employer Social Security itemised.
Form 303 VAT result
Output VAT minus deductible input VAT. Estimate the quarterly amount payable or carried forward.
Late-filing surcharges
Surcharge for filing a self-assessment late without a prior demand under Article 27 of Spain’s General Tax Law.
How much you save with Zolven
Compare what you currently spend on your gestoría and your time with the annual cost of a Zolven plan.
Net salary calculator
From gross salary to take-home pay: estimated Social Security and income tax for each payment.
Annual income tax for self-employed people
Estimate annual personal income tax from revenue and expenses, including the quarterly advance payment.
Your freelance hourly rate
Calculate the hourly rate needed to reach your target income while covering costs and contributions.
The deadline is already on the calendar. Your new gestoría can be too.
Limited places in the pilot programme for self-employed people. Tell us about your business and we’ll let you know whether Zolven can already run its back office.
We reply within 24 hours · hola@zolven.ai