Substantiq Tax · Available

Keep every return line tied to a confirmed fact.

TaxLine turns tax documents into a reviewed fact set. Confirmed facts flow into the calculation and remain linked to the source document.

How it works

See TaxLine in the work.

TaxLine reads tax documents and proposes the facts they contain. A fact must be confirmed before it reaches the tax calculation. Missing or conflicting information keeps the return from moving forward.

Actual product interface · synthetic demonstration data · captured 2026

TaxLine workspace showing document review, tax facts, diagnostics and return status

TaxLine workspace showing document review, tax facts, diagnostics and return status

Actual product interface · synthetic demonstration data · captured 2026

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01

Reads the documents

It finds the tax year, form type, taxpayer details, income and deduction facts.

02

Uses the right tax year

Confirmed facts feed the calculation rules for the selected year and stay linked to the return line.

03

Stops on missing support

Wrong-year documents, conflicting facts and unfinished review remain open.

One important limit: Screens use synthetic demonstration data. A capture is not proof of production readiness or a correct accounting conclusion. Sources, open issues and reviewer approval remain part of the work.

Evidence-linked tax preparation

TaxLine

TaxLine turns tax documents into a reviewed fact set. Confirmed facts flow into the calculation and remain linked to the source document.

Private deployment per organization. Product access and setup are confirmed separately.

01

Fact provenance

Retain the document reference and review status behind each tax fact.

02

Year-specific logic

Apply calculation logic for the selected tax year to confirmed inputs.

03

Source-linked return lines

Link return figures back to the facts and documents that support them.

04

Readiness controls

Keep missing or conflicting inputs visible before release.

Available

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