TaxCycle API
TaxCycle has a developer API license page but no developer portal, no reference and no SDK, so access needs a signed agreement. The only public integration, Xero GIFI and invoicing, is limited to Xero Partner Program members.
Frequently asked questions
TaxCycle scores F on Supergood's API Report Card. TaxCycle has a developer API license page but no developer portal, no reference and no SDK, so access needs a signed agreement. The only public integration, Xero GIFI and invoicing, is limited to Xero Partner Program members.
Without a usable official API, teams fall back on manual exports, file drops, or one-off vendor integrations. The other option is an unofficial API layer like Supergood that automates the authenticated web app directly. Site terms may apply to any integration approach, and how they apply is a determination each team makes for itself.
TaxCycle is professional Canadian tax preparation software for accountants and bookkeepers, now owned by Xero.
Finance, specifically Canadian accounting and tax practices. The buyers are CPA firms, independent tax preparers and bookkeeping practices that file T1, T2, T3, T5013 and slip returns with the CRA and Revenu Quebec. A firm installs TaxCycle on Windows workstations or a server, carries client data forward across years from one installation, downloads CRA and Quebec data through EFILE and Auto fill my return, prepares and reviews returns, collects e signatures, and files electronically.
TaxCycle is an established Canadian professional tax preparation vendor and is now owned by Xero, but no customer counts or market share figures are published in any sourced material, and its footprint is limited to the Canadian tax compliance market.
TaxCycle holds the return level record for a Canadian practice: T1, T2, T3, T5013 and charity returns, slips, GIFI financial data, carryforward files spanning multiple tax years, EFILE and Auto fill my return submission and download history, client and preparer records, e signature artifacts, and client billing and invoice data that feeds Xero.
TaxCycle is a mature desktop generation product that predates its Xero ownership and still ships as Windows only software with a single installation covering all prior tax years.
Third party review notes TaxCycle is Windows only with no Mac or browser access, and that the full suite carries a significant annual cost. Full sourced list under Sources below.
Common alternatives include TaxPrep, Intuit ProFile, CCH iFirm, Cantax. Graded alternatives appear under "More from the report card" below.
Supergood's grades measure one thing: can a customer's engineering team get their own data out programmatically? Supergood checks six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and rolls them into a letter grade. Supergood re-verifies grades, and they only move on evidence.
Not that we could find. There is no official TaxCycle MCP server in any public registry, and no maintained community server we're aware of. We re-verify this periodically — report an inaccuracy below if we missed one.
Not natively. TaxCycle doesn't publish an MCP server, so MCP clients like Claude, Cursor, and Codex have nothing to connect to out of the box. If that changes, this page will reflect it.