The Canadian tax software, built for civic trust.
Simple on the surface. Transparent all the way down. TAXEM is a calm, local-first Canadian income tax preparation environment, engineered with mathematical rigor and dual-jurisdiction control (Quebec + Federal) from day one.
TAXEM Demo is a private, early technology preview. Electronic filing is not available yet. CRA NETFILE and Revenu Québec certification are planned for a future release, not active now.
# Computing Quebec + Federal Tax Return
Year: 2025
Jurisdiction: QC + CA (Federal)
Calculations: DETERMINISTIC REPLAY OK
Audit Checksum: 0x7F9B2C4E
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Net Income: $52,400.00
Federal Tax Owed: $5,082.00
Quebec Tax Owed: $4,874.00
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Status: Return Validated. Ready to Export.A Paradigm Shift in Tax Software
Tax preparation should feel clear, predictable, and calm. Here is how TAXEM approaches your return.
Traditional Web Platforms
- ✕ Complexity & Noise: Interfaces designed around marketing prompts and tiered upgrade menus.
- ✕ Remote Cloud Storage: Sensitive slips and personal financial records stored on external corporate servers.
- ✕ Opaque Summaries: Summary numbers computed behind closed doors without step-by-step mathematical insight.
- ✕ Segmented Access: Higher fees or paywalls required to unlock common deductions and credits.
The TAXEM Way
- ✓ Focused & Serene: A clean, quiet workspace built for patient review, accuracy, and ease of mind.
- ✓ Local Data Sovereignty: Your data remains exclusively on your computer, under your private custody.
- ✓ Explainable Ledger: Every single line item is fully auditable, explained line-by-line in plain language.
- ✓ Complete Feature Access: Every supported calculation, deduction, and credit is available to you from day one.
Interactive Showcase
Experience the Neo-Retro design interface. Toggle between tax years, select a profile, and click on any ledger line to inspect the formulas and rules.
TAXEM WORKFLOW ENGINE // CANADIAN TAX SUMMARY
Jurisdiction: Canada (Federal) & Québec (Provincial)
Section 1: Total & Net Income
Section 2: Deductions & Taxable Income
Section 3: Federal Calculations (Revenue Canada)
Section 4: Provincial Calculations (Revenu Québec)
Formula & Rule Inspector
Select any row in the ledger document to inspect the exact mathematical formula, provincial/federal rule coupling, and detailed breakdown.
Select an item above
Canada NETFILE Readiness Roadmap
Formal accreditation with tax authorities is an annual process. We are actively structuring the TAXEM engine to ensure compliance with the technical standards required by the Canada Revenue Agency and Revenu Québec.
We have successfully completed local verification suites and are preparing to enter official certification channels for the upcoming tax cycle.
Verification & Local Seams
Completed 1645-test suite validation. Gated Ontario-first filing eligibility checker and SIN masking rules.
Developer Registration (Fall)
Submit formal registration to the CRA Electronic Media Processing Unit (EMPU) and Revenu Québec Partner Services.
Validation & Testing (Winter)
Execute and submit required test-case returns and scanner-ready print layouts (IN-413-V TPF-1.U) to validation portals.
Gateway Opening & Launch (Feb)
Enable direct-transmission (NETFILE) features upon receiving official confirmation letters and TCIs.
T1 XML Schema validation: PASSED
Error Prevention (EPS): 72/72 OK
SIN display masking: ACTIVE (***-***-****)
Reconciliation cases: 10/10 PASS
Revenu QC IN-413-V proof: READY
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STATUS: CALCS VERIFIED & CERTIFICATION-READY
Pan-Canadian Expansion
TAXEM is built first for Canadians. Our expansion follows a deliberate, province-by-province path — ensuring the same level of mathematical rigor and provincial accuracy at every step.
Before announcing anything beyond our borders, we are committed to serving every province and territory in Canada with the same care we brought to Ontario.
Ontario — Active
Full T1 + ON428/ON479 support operational and verified for 2024 and 2025 tax years.
Western Canada (BC & Alberta)
Extending provincial form support to British Columbia and Alberta residents for the upcoming tax cycle.
All Provinces & Territories
Full pan-Canadian coverage, including Quebec TP-1 filing, Atlantic provinces, and all territories.
Frequently Asked Questions
Learn more about our local-first architecture and civic principles.
Is TAXEM online or offline?
It is designed to run entirely locally. The website you are viewing now is a promo showcase, but the actual TAXEM engine compiles and runs on your machine. Your financial information never uploads to our servers.
Why do you emphasize Quebec?
Quebec has a separate, highly distinct provincial tax filing system. Most software treats it as an afterthought. We built our architecture to natively support dual-jurisdiction coupling from the ground up.
Is TAXEM certified by the CRA and Revenu Québec?
No, TAXEM is currently a development-stage prototype and is not yet certified for direct electronic transmission (NETFILE) by the CRA or Revenu Québec. We are actively organizing our calculations and structuring layouts to prepare for formal certification cycles through official channels in a future release.
What tax years and provinces are supported?
TAXEM currently supports calculations for the 2024 and 2025 tax years. Our active certification direction is Ontario-first, which supports Ontario residents filing individual returns (T1 with Form ON428 and ON479). The Quebec TP-1 calculation engine is present in our code for dual-jurisdiction future-proofing, but provincial Quebec filing is currently unsupported. For other provinces, calculations are present in the core but not yet fully wired to the user interface. Read our detailed Scope & Limitations page for more details.
How is TAXEM structured?
The platform is grounded in civic technology principles. All supported calculation features, schedules, and credits are fully accessible from day one, without paywalls for deductions or unexpected upgrade prompts.