Author profile
David C., Founder of CasaTab
I write all CasaTab guides on home-buying costs, mortgages, and the math that makes the difference for first-time and repeat buyers across Europe, the UK, the US, and Canada.
The short version
I built CasaTab while buying my own home and drowning in spreadsheets. Six tabs, two co-buyers, and a mortgage with rate-period changes I couldn't model in Excel without breaking it.
Nothing on the market tracked a house purchase end to end. Budget apps wanted to count my groceries. Mortgage calculators didn't talk to expense trackers. Notion templates needed me to maintain them. So I built the tool I wished existed — purpose-built for the purchase window and the mortgage that follows.
CasaTab now ships in six languages and supports 14 countries with their real mortgage reference rates — Euribor, SOFR, the Bank of England base rate, Canadian prime — plus amortization schedules and, for Spain, transfer-tax data for all 19 regions. It's free to start, €49 one-time to unlock the full mortgage engine and unlimited household members.
What CasaTab is — and isn't
What it is
- A cost tracker for the house-buying window: down payment through closing and beyond.
- A mortgage engine with French / Italian amortization, ARM caps, and extra repayments.
- A multi-user household ledger — partners, families, co-buyers share the same view.
- A document vault for contracts, receipts, and inspection reports.
What it isn't
- Not a monthly budget or general personal-finance app.
- Not a mortgage broker, lender, or real-estate listing site.
- Not a subscription. One-time per house, free to start.
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