Revenue Premier – Portfolio Warehouse

Tax and Revenue agencies are under continuous pressure to improve compliance and collect more of the unreported tax revenue. For years, agencies have accumulated vast quantities of operational data and collected external data from other agencies, municipalities and third-party sources. The challenge lies in finding ways to better leverage available data, via data warehousing, to improve compliance and collect additional tax revenue.

Data can be utilized to improve the effectiveness of many processes within a revenue agency, is proven to be a dependable method to increase revenues and, in many instances, reduce costs. Leveraging data in areas such as enforcement (audit and collections), taxpayer education, policy analysis, management reporting and decision analytics is critical for agencies. It enables them to derive maximum value from the data they already own and to drive revenue generation. Several common questions asked of revenue agencies by stakeholders are:

  • Is there a more accurate, dependable method to identify individual non-filers or business non-registrants?
  • Of the top corporations in our state, who is paying the least in taxes? Why?
  • If a proposed tax law is enacted, how much revenue will be impacted and who will it affect?
  • Can a risk score be applied to delinquent taxpayers to vary the enforcement treatment applied, making collection efforts more efficient and freeing resources to work the more difficult cases?
  • Can statistical analysis or other pattern detection algorithms of past audit history be applied to determine the attributes of a high-yield audit case and assist in selecting the best leads?
  • Was pursuing a particular audit/issue worth the effort after all appeals and abatements are factored
    into the analysis?
  • How can agencies use the totality of information available for taxpayers, first-time filers and non-taxpayers to confirm taxpayer identities, validate their refund claims and reduce fraudulent claims/returns?


Most agencies are yet to effectively leverage one of their most valuable assets to address these business challenges — data. Consolidating into a central data repository (data warehouse) all of the information an agency has about its taxpayers (and non-taxpayers) provides the foundation necessary to address these various business challenges and to drive increased compliance and revenue generation.


Revenue Premier Portfolio Warehouse provides the tools and functionality agencies seek for their data warehousing and business intelligence (BI) needs. Portfolio Warehouse helps agencies get the most out of valuable taxpayer data. Current implementations are recovering more than $250 million annually for state revenue agencies.

Portfolio Warehouse was exclusively designed for Tax and Revenue agencies to attack the compliance "tax gap" and provide a data warehouse foundation to support initiatives across operations, policy, enforcement and management functions. The Portfolio Warehouse provides a state-of-the-art tax data warehouse solution which interconnects individual and business data from multiple sources creating a single-entity or portfolio view of each business and individual taxpayer, and the relationships between them. These comprehensive taxpayer portfolios increase overall effectiveness of Discovery (e.g., individual non-filers, business non-registrants and NEXUS cases) and Audit programs by targeting agency resources to those accounts that are truly non-compliant, resulting in accurate and revenue-maximizing detection and recovery of non-registrants, non-filers, under-reporters and fictitious taxpayers. The Portfolio Warehouse provides Collections a data foundation used to determine assets, employment, location and responsible persons, and to support analysis of the most effective and economical collection treatment strategy for each case. The totality of information that can be reliably assembled across taxpayer filing history, IRS information, data from other agencies (e.g., Motor Vehicles), employers, and commercial providers all serve to allow agencies to move away from simple refund fraud filters and towards robust identify verification and Fraud and Issue Detection techniques. Additionally, the Portfolio Warehouse provides a tool to conduct case research, economic analysis, legislative and policy analysis, executive management reporting and better understanding of trends and changes while they are happening.

Portfolio Warehouse can be installed and configured in a short period of time, providing your agency with quick results. The Portfolio Warehouse’s comprehensive tax data warehouse toolset, advanced data standardization and matching routines, tax calculation builder, scoring engine, case selection and management functionality, configurability and open design readily accommodate new data sources, new compliance initiatives, new fraud detection patterns, changes in case workflow, additional reporting requirements and more. The majority of available external data sources (e.g., IRS IRMF) and compliance initiatives (e.g., individual non-filer) are pre-configured, allowing your agency to start loading data more quickly and begin realizing benefits sooner than with custom-built solutions or other industry offerings.

Security features meet IRS Guidelines and safeguard the agency from unauthorized access and disclosure of FTI (Federal Tax Information). All inquires via the Portfolio Warehouse’s windows are secure and generate an audit trail of "who looked at what," meeting IRS Common Criteria requirements.

The three core components of functionality in Revenue Premier Portfolio Warehouse are Data Transformation, Portfolio Management and Lead Selection/Scoring.


Data Warehousing and Business Intelligence is an important ingredient in successful Compliance Management — applying the right action, to the right taxpayer, at the right time, through the intelligent use of information.