Canadian and Quebec taxes. Windows 7+ and Linux. Offline. Free.
LinuxTax for Windows 7+ and Linux is an offline desktop tax application for the 2026 Canadian T1, Quebec TP-1, Ontario and all other provinces returns. Runs natively on all major Linux distributions as well as Windows 7 (or newer) Your sensitive financial information never leave your disk and is sent directly to the CRA and Revenu Quebec.
Why LinuxTax?
A first-class Linux application
Native, and runs on all major distributions such as Debian, Ubuntu, Linux Mint, Fedora, openSUSE, and Arch.
Indefinite backward compatibility
LinuxTax runs on every release of Windows from 7 onward, and on Linux distributions going back to LTS releases from a decade ago. Tax season should never be the reason you have to replace working hardware or relearn an operating system.
Offline by design
Your return is a file on your disk, encrypted with a passphrase you choose. The only thing that ever crosses the network is the CRA NETFILE submission — and only when you press the button.
“Free” online filers aren't really free
Cloud-based “free” and even paid tax services pay their bills by selling leads, sharing data with affiliates, and will use your sensitive financial data to advertise and sell to you.
Every province, including Quebec
Full federal T1 General plus all ten provincial returns — ON, QC, BC, AB, SK, MB, NB, NS, PE, and NL — with full TP-1.D-V coverage for Quebec including Schedules A through V where applicable. Most desktop tax tools for Linux skip Quebec. LinuxTax doesn't.
Made in Canada
LinuxTax is a small project made in the province of Quebec.