Tax Data vs YNAB
Same instrument, two spec sheets — measured, not claimed.
Tax Data vs YNAB: common questions
Which is more reliable, Tax Data or YNAB?
Both are neck-and-neck — Tax Data and YNAB each measure 0.0% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.
Do Tax Data and YNAB need an API key?
Both ask you to authenticate — Tax Data uses an API key and YNAB uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.
Can I call Tax Data and YNAB from the browser?
Yes — both Tax Data and YNAB send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are Tax Data and YNAB free for commercial use?
Tax Data has unclear commercial terms, and YNAB has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.