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Enter your approximate annual revenue and we'll calculate how much you'd pay under each structure. Calculations based on 2025-2026 tax brackets.
This calculator is a rough estimate. Actual figures depend on your situation, withholding tax, private insurance, specific deductions and VAT regime. For a personalised simulation, book a free call with our advisors.
Situations we solve every week for founders coming from Stripe Atlas, Firstbase, or a traditional accounting firm.
I used to pay $500 with Stripe Atlas. Now I pay $21.99 a month with Aiden and I have a Spanish-speaking advisor. Total game changer.
In 36 hours I had my UK Limited up and running, a bank account, and my first invoice issued from Aiden Books. It doesn't get any faster.
Lunnar AI saves me hours every week categorizing invoices. At year-end close, all the accounts were ready in 4 clicks.
I migrated my LLC from Delaware where another company managed it. Aiden rescued it, cleaned it up, and keeps it running for a lot less.
I didn't want to set up an SL in Spain with a sole trader accountant at €300/month. A UK Limited with Aiden costs me €20 and I get more tools.
My advisor replies in under an hour. I've asked legal questions that would have cost me €200 an hour elsewhere.
Aiden Pay lets me charge clients through Stripe with no markup. Stripe Atlas charged me an extra fee on top of Stripe's own fee.
Forming a company from Argentina seemed impossible. With Aiden I was operating in the UK in under a week, without flying to London.
Illustrative stories based on situations our clients commonly face. Names, companies and figures are fictional.
Yes, completely. You're tax resident in Spain and pay tax on your personal income here (salary or dividends received from your UK Limited), but the company pays Corporation Tax in the UK. This is a structure thousands of Spanish freelancers and founders have used for years. What matters is correctly declaring everything you receive from the company on your Spanish IRPF (personal income tax) return.
There are two main options: (1) a monthly salary from the company with IRPF withholding, or (2) dividends at the end of the tax year (more tax-efficient, since they're taxed at the savings rate). Aiden helps you choose the optimal combination based on your revenue.
No. If your only source of income is as the director/sole shareholder of your UK Limited, you deregister as self-employed in Spain. You do need to keep making minimum contributions to maintain healthcare coverage and benefits. Aiden advises you on the most efficient structure.
No, thanks to the Spain-UK Double Taxation Treaty in place since 1976. What you pay in the UK as Corporation Tax is deducted from your Spanish IRPF on dividends. Aiden manages all the necessary documentation.
24-72 hours for formation with Companies House. After that, the bank account (Wise Business pre-approved for Aiden clients) takes a further 3-7 days. Total: you're invoicing in under 2 weeks.
As long as your structure and filings are correct (and with Aiden they are: we declare everything, total transparency), there's no risk. The UK Limited is a legal structure recognised internationally. We'll support you through any audit if needed.
