OrangeTax is an established expat tax firm with offices in Amsterdam, Rotterdam and Haarlem, known for transparent fixed fees: one price for your income tax return with the fiscal partner included, regardless of complexity (their personal return is a fixed fee in the hundreds of euros; check their current price list for the exact amount). Taxmo takes the software route: a free refund calculation, then a one-time €49 (Box 1) or €79 (Box 2/3) to file directly to the Belastingdienst, partner data also included.
Both Taxmo and OrangeTax avoid hourly billing. The difference is what the fixed price buys: at OrangeTax a tax professional prepares and files your return; at Taxmo the wizard guides you through entering your jaaropgaaf and deductions yourself, applies the official 2025 brackets, credits and thresholds, and files via Digipoort. Self-serve is why the Taxmo fee is a fraction of a prepared service.
With Taxmo the entire calculation is free: you see your refund or amount due, the breakdown per bracket and heffingskorting, and the effect of every deduction before any payment. You pay only at the moment of filing. A prepared service necessarily works the other way around: you commit to the fee, then receive the outcome.
OrangeTax is a strong choice when you want a professional to own the process, especially with international elements. If your Dutch situation is employment income, a home, and standard deductions, Taxmo files the same return for €49 and shows you the result first.