The Tax Industry’s Leading Audit Execution Software

Request a Demo


TaxMaster is our premier, state, and local tax audit execution software used by the city, county, and state agencies.

In use by thousands of field auditors, TaxMaster actively supports over 30 tax types and has been developed and enhanced to meet the specialized needs of field auditors to help organizations conduct audits that maximize time and quality.

Industry Challenge

Limited knowledge and documentation of your homegrown audit system.

The system relies heavily on one person.

Homegrown systems are frequently written in an older, unsupported version of some tool or language.

ICON | Homegrown systems don’t always handle all the tax types.





Users can conduct audits every da


Tax types are actively supported by TaxMaster​


Of audits completed​


Years of experience. ​

Key Features & Functions

TaxMaster toolset meets virtually every detailed audit function
needs out of the box for all tax types.

Easy and seamless configuration

With TaxMaster, configuration, and maintenance of tax types, reporting requirements, taxing jurisdictions, current and historical rates for state, county, and local taxes are made easy through simple configuration for any state, county, or local tax structure.

As tax, penalty, or interest rates (or calculations) change, the configuration settings are managed centrally and distributed to auditors automatically.

Supports multiple types

of audit methodologies

RSI offers full SRS Audit support through its Statistical Sampler system, which easily integrates with TaxMaster.

Statistical Sampler

RSI’s Statistical Sampler allows you to perform a Stratified Random Sample (SRS) audit. Its wizard-based approach guides an auditor through a step-by-step process to conduct an SRS audit.
This way, the auditor performs the audit autonomously without (or with minimal) assistance from a Computer Auditing Specialist (CAS).

To ensure all SRS audits adhere to the agency’s process and procedure, Statistical Sampler allows
administrators to establish and maintain the set of accepted sampling parameters, confidence intervals, and other options in a central location.

Detailed, Block Sample and Stratified Random Sample (Statistical).

Multiple methodologies per tax type.

Tax-type specific methodologies.