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DProduct · Tax digitisation

TaxaFi — sales tax, computed and filed.

Rate resolution down to ZIP+4, taxability by category, accrual as the money is collected, then the return derived, assembled and remitted on the merchant’s own calendar.

Contact salesBack to products
Capabilities

What it does

JR

Jurisdiction resolution

ZIP+4 to ZIP to county to state, with a confidence level attached rather than a guess presented as fact.

TB

Taxability by category

A cascade from jurisdiction to state to category default, effective-dated so historical calculations stay correct.

RD

Return derivation

Period figures built from recorded calculations, mapped to the buckets the specific form actually asks for.

FC

Filing calendars

Frequency, due dates and the channel each state expects, per merchant registration.

FA

Form assembly

Field-level mapping into the real return, across PDF, positional file and portal channels.

MI

Municipal incentives

Real-time settlement with authorities, where participating merchants can be offered reduced rates.

API first

Available as an API, not just a screen

TaxaFi is the US system of record for rates, jurisdiction boundaries, taxability rules and state return forms. It was built API-first so an accounting platform, a marketplace or a partner filing on a merchant’s behalf can call it directly: four calls take a transaction all the way to a submittable return.

Read the tax API referenceAll developer docs
✓calculate: price the sale at the consumer address
✓filing_form: which return this registration files, and how
✓prepare_return: the period figures, keyed to form fields
✓assemble_filing: the submittable payload and field map
✓Fifteen endpoints, scoped keys, idempotent calculation
Filing channels

States file very differently. That is our problem, not yours.

CS

Positional CSV

States that take a bulk upload get a ready positional line, blanks and all.

PD

Fillable and flat PDF

Real form fields are filled directly; flat forms have values drawn at spec coordinates. Spec drift against a re-issued form is caught and reported.

SE

Streamlined SER

One XML format the Streamlined member states accept, so a single call covers all of them rather than one integration each.

Why merchants care

Nobody wants to think about this

Sales tax is the obligation a small business is most likely to get wrong and least able to argue about afterwards. Taking it off their desk entirely is a stronger retention mechanism than any pricing concession.

✓Computed at the point of sale
✓Accrued as collected
✓Filed on their calendar
✓Remitted on their behalf
✓Evidence retained for audit

Put TaxaFi in front of your merchants.

Direct, or under your own brand through the partner program.

Contact salesPartner program