FMS receives payment records from and makes payments on behalf of most federal agencies. However, a number of federal agencies have their own disbursing authority. For example, USPS paid about $42 billion in salary and benefits to almost 800,000 career employees in calendar year 1999, and entered into more than 47,000 contracts with vendors in calendar year 1998, totaling almost $8 billion. DOD disbursed over $295 billion in fiscal year 2000, including about $150 billion in contractor and vendor payments and about $100 billion in salary and retirement payments. In addition, Medicare contractors processed over 900 million fee-for-service claims during fiscal year 2000, totaling nearly $175 billion. In addition to disbursing payments for various federal agencies, FMS provides centralized debt collection services for most federal agencies. To aid in federal debt collection, FMS has in place the Treasury Offset Program, which uses a centralized database of delinquent debts that have been referred for offset against federal payments. This database includes federal nontax debts and federal tax debts, as well as state tax debts and child support debts. FMS currently matches federal tax refunds, federal retirement and vendor payments, and certain federal salary and social security benefit payments against its database of delinquent debts, and when a match of both TIN and name control occurs, FMS offsets the payment, thereby reducing or eliminating the debt. FMS plans to include some non-FMS disbursed federal salary payments in the Treasury Offset Program in the latter half of 2001. A provision included in the Taxpayer Relief Act of 1997 enhanced IRS' ability to collect delinquent federal tax debt by authorizing IRS to continuously levy up to 15 percent of certain federal payments made to delinquent taxpayers. FMS modified the Treasury Offset Program to enable IRS to electronically serve a tax levy to FMS once IRS has notified the delinquent taxpayer of the pending levy. In July 2000, IRS began adding tax debts to FMS' database of delinquent federal debts, thus initiating the continuous levy program. For this program, FMS compares federal payee information from agency payment records with IRS' accounts receivable records. When a match of both the TIN and name control occur, FMS informs IRS of the match and IRS then notifies the taxpayer of the pending tax levy. If the taxpayer fails to make an effort to satisfy the tax debt within 30 days, such as by payment in full or entering into an installment agreement, IRS will then instruct FMS to begin levying 15 percent of subsequent payments made to the taxpayer or the exact amount of tax owed if it is less than 15 percent of the next payment. For payments disbursed on behalf of other agencies, FMS deducts the amount to be levied before making the payment, and the levied amount is then credited to IRS. In an April 2000 report, we estimated that IRS could potentially collect as much as $478 million annually through this program. Based on matching federal payments made by the agencies to IRS' accounts receivable data, we estimate that including payments disbursed by USPS, DOD, and CMS in the continuous levy program could result in recovering at least $270 million annually from about 70,000 delinquent taxpayers. An additional $16 million in delinquent taxes could be recovered annually from about 656 vendors if IRS were to provide FMS with the different names these vendors have used for tax purposes when FMS matches vendor payment data against IRS' accounts receivable data. Our analysis of IRS' accounts receivable data as of June 30, 2000, showed that about 70,400 taxpayers received about $1.9 billion in payments--about $8.2 billion on a annualized basis--from either USPS, DOD, or CMS, and the TIN and name on their payment records exactly matched the TIN and name on IRS' accounts receivable records. These taxpayers owed over $1 billion in delinquent taxes at the time they received these payments and met IRS' criteria to be included in the continuous levy program. As shown in table 1, we estimate that IRS could recover as much as $277.5 million annually if these payments were included in the continuous levy program. Almost half of the $277.5 million in delinquent taxes that could be recovered would come from vendor payments. The rest would come from wage and salary payments to employees and retirement payments. The amount of delinquent taxes recovered annually could be somewhat lower because some taxpayers might make other arrangements with IRS to resolve their tax debts once they receive a notice of levy. For example, in an effort to avoid a pending tax levy, some taxpayers might contact IRS to arrange to pay their delinquent tax in full or through entering into an installment agreement or submitting an offer-in-compromise. However, such actions on the part of the taxpayer in response to the levy notice would be an added benefit of the program. Although the amount of delinquent taxes recovered could be somewhat lower, as noted earlier, our estimates of the amount of delinquent taxes that might be recovered are understated because we did not receive data for over 50 percent of the Medicare vendor payments made for the time period we reviewed. In addition, we were unable to match about $3.4 billion in DOD vendor payments against IRS' accounts receivable data because DOD's payment records did not contain a TIN. According to DOD officials, DOD has recently increased its emphasis on requiring vendors to provide a TIN when registering to do business with DOD. Under procedures for vendor payments that are paid by FMS and currently subject to continuous levy, IRS' file of accounts receivable data provided to FMS includes only the most recent name a vendor has used for tax purposes. As a result, FMS' ability to exactly match the vendor name on payment records against IRS' tax debts is limited. IRS already makes additional names for individual taxpayers included in its databases available to FMS for use in the existing continuous levy program. For example, if taxpayers change their name when they marry, the name used as a single person would be sent to FMS along with their married name. This is not the case for businesses. For vendor payments currently paid by FMS and thus included in the continuous levy program, if a business were to change its name on its federal tax return, IRS would provide FMS with the most current name in its records, but not the prior name. When making our overall estimates of delinquent taxes that could be recovered if USPS, DOD, and CMS Medicare vendor payments were included in the continuous levy program, we determined the amount of additional revenue that could be raised if IRS changed its policy and provided FMS with all of the names it has for vendors. In addition to the 70,400 taxpayers whose TIN and name on the payment records exactly matched the TIN and name on IRS' accounts receivable records, we found 1,228 instances in which the TIN on the vendor payment records exactly matched the TIN on IRS' accounts receivable records, but the name on the payment records did not exactly match the name on IRS' records. For 656 of the 1,228 vendors, we found different names used by these vendors in an IRS database that showed they were in fact the delinquent taxpayers. There were no additional names in the IRS database for the remaining 572 vendors. The 656 taxpayers for which there were additional names owed about $26 million in delinquent taxes. We estimate that IRS could recover about $16 million annually if the different names it has for vendors were provided to FMS for the continuous levy program. If IRS were to provide FMS with the different names it has for business taxpayers, this would benefit the current continuous levy program by increasing the instances in which FMS could match the name in both records, as required before a levy can be made. IRS officials agreed and indicated that providing such a file of additional business names to FMS could be done and would be well worth the effort. FMS officials indicated they were in favor of receiving additional business names for use in the continuous levy program. Whether federal payments made by USPS, DOD, and CMS could be included in the continuous levy program and, if so, when varied by agency and type of payment. FMS plans to receive and include USPS and DOD salary and wage payments, as well as military retirement payments, in the Treasury Offset Program within the next 3 years, thus making them available for continuous levy and enabling IRS to begin collecting about half of the $277.5 million in potential annual tax recoveries mentioned earlier. Vendor payments could also be included in the continuous levy program, with the full range of USPS payments possibly included in less than a year, DOD payments possibly included within 3 years, and CMS payments possibly included within about 5 years. However, with the exception of some DOD vendor payments, officials from FMS, IRS, and the three agencies have not discussed when and how all of these agencies' vendor payments could be included in the continuous levy program and whether practical options exist to include some portion of the vendor payments in the program before all such payments are available. FMS officials stated that their discussions with USPS have focused on including salary payments in the Treasury Offset Program rather than vendor payments. USPS plans to provide employee salary payments to FMS for inclusion in the Treasury Offset Program, and FMS is working with USPS to develop a specific implementation date. According to FMS officials, once USPS salary payments are available for the Treasury Offset program, they could be included in the continuous levy program about a month later. USPS officials stated that, although they have not had any recent discussions with FMS about including vendor payments in the Treasury Offset Program, they do not believe any obstacles would prevent making vendor payments available to FMS, since all USPS vendor payments are disbursed from one payment center. Officials indicated that within about 4 months of FMS' requesting them to do so, they could likely be ready to provide vendor payments to FMS and to levy payments for which FMS indicates a match with IRS' accounts receivable data. USPS officials did say that levying vendor payments could present some challenges. For example, USPS vendor payments generally are not made on a particular schedule, but rather, are controlled by terms specified in individual contracts. As a result, unlike biweekly salary payments, USPS disburses vendor payments daily throughout the business week. Therefore, vendor data exchanges between USPS and FMS would likely have to occur with greater frequency than salary data exchanges. However, USPS officials stated that the Prompt Payment Act requires that vendor payments be deferred until the pay cycle immediately preceding the payment due date. This should provide an adequate interval to offset such payments, particularly if the vendor data exchanges with FMS were to occur either weekly or biweekly. USPS officials also stated that USPS does not currently offset vendor payments to recover debts owed to USPS, and therefore, specific offset procedures would have to be developed. However, these officials were confident that they could modify the USPS system to enable them to flag any vendor payments requiring offset identified through the Treasury Offset Program. They further stated that such an offset would require manual intervention to make the offset and reconcile the vendor's account. Although USPS officials said that they could make vendor payments available to FMS within about 4 months of FMS' requesting such data, USPS and FMS officials have not discussed specific arrangements for doing so, such as when FMS could be ready to receive USPS vendor payment data or how long it might take USPS to develop procedures for performing such offsets. FMS is working with DOD to include civilian, military retirement, and military active duty payments in the Treasury Offset Program, thus eventually making these types of payments available for the continuous levy program. According to DOD officials, the approximate timeframes that have been established for providing DOD payments to FMS are as follows: DOD civilian salary payments in the latter part of 2001, DOD military retirement payments in 2002, and DOD military active duty payments in 2003. DOD has also initiated preliminary discussions with FMS about providing some vendor payments to FMS. These payments are all made from one payment system maintained at one DOD Defense Finance and Accounting Service (DFAS) location and accounted for about 48 percent of all DOD vendor payments made in fiscal year 2000. However, DOD officials have not specifically discussed providing other vendor payments to FMS in the near future, and they have concerns regarding the current capability to make other vendor payments available for the continuous levy program because of DOD's decentralized vendor payment systems. For example, vendors providing goods and services to three of the military branches- Army, Air Force, and Navy-are paid from separate vendor payment systems maintained at various DFAS locations. In addition, there are separate vendor payment systems for processing certain specialty items, such as fuels and commissary resale products. DOD officials stated that DFAS staff do not currently have the capability to track multiple payments made from the various vendor payment systems to a particular vendor. As a result, if they were to provide vendor payments to FMS from these decentralized payment systems, DOD officials were concerned that there would be a risk of offsetting more in payments than a vendor might owe in delinquent taxes. Although DOD officials expressed concerns about offsetting more in payments than a vendor might owe in delinquent taxes, IRS officials indicated there are controls in the continuous levy program to prevent such overpayments. For example, IRS provides FMS with a weekly file updating the balance due for each account subject to continuous levy. In addition, FMS has the capability to update the balance due for each account after each payment is levied, thus enabling FMS to identify when a tax debt has been reduced to zero. In addition, selected staff in each IRS office are authorized to directly access FMS' levy database to rescind a levy if necessary, such as for taxpayers subject to a continuous levy that decide to either fully pay the tax debt or enter into an installment agreement. FMS and IRS officials have not discussed these controls with DOD to determine whether they would mitigate DOD's overpayment concerns and pave the way for other types of vendor payments to be provided to FMS for the continuous levy program, in addition to those vendor payments currently under consideration. DOD is currently developing a centralized vendor payment system that could increase its capability to eventually provide all vendor payments to FMS. According to DOD officials, the multiple vendor payment systems currently in use are to be replaced by a single system known as the Defense Procurement Payment System. The latest DOD estimate indicates that the initial phase for implementing the new system will begin in the latter part of fiscal year 2001. DOD officials estimate that the new system may be fully operational by the latter part of fiscal year 2003 or the early part of fiscal year 2004. However, they indicated that this is a "best-case" scenario. FMS and CMS have not held any discussions related to including Medicare vendor payments in the continuous levy program. CMS and Medicare contractors we spoke with agreed that including all Medicare payments in the continuous levy program would not be possible for several years owing to the decentralized payment system in which the Medicare program operates. CMS administers the Medicare program through about 50 health care contractors, which process and pay over 900 million fee-for- service claims totaling nearly $175 billion annually. These contractors are responsible for verifying the accuracy of the name and TIN used by health care providers that bill the Medicare program for reimbursement. Thus, the ability to identify and subsequently levy the payments made to Medicare providers who owe federal taxes would depend on establishing effective coordination between IRS and FMS and each of the contractors that pay the claims. The possibility of including Medicare vendor payments in the continuous levy program is further complicated because CMS contractors currently use one of six different computerized systems to process and pay claims. Although CMS eventually plans to have all of its contractors use one of three standardized claims processing systems, this consolidation is not expected to be completed before 2004. The contractors responsible for maintaining the three standardized systems believe that integrating a continuous levy process into Medicare claims processing systems is possible, but the systems would likely have to be modified and tested before implementation. Planned enhancements to the CMS accounting and provider enrollment systems may improve the likelihood that Medicare vendor payments could be included in the continuous levy program in the future. For example, in order to comply with federal financial management systems requirements, the agency is developing the CMS Integrated General Ledger and Accounting System. As currently envisioned by CMS, this system would contain detailed information on each Medicare claim paid, and as such, might offer FMS and IRS a central point of coordination for continuously levying Medicare vendor payments. Also, CMS is developing a centralized database of updated information on all health care providers that bill the Medicare program. This system is intended to help ensure that only qualified providers with a valid TIN enroll in and receive payments from the Medicare program. Once fully operational, this system is expected to interface with other CMS systems, thereby helping to ensure that the name and TIN used by providers have been validated by IRS. Neither system is scheduled to be fully operational before late 2006. Although these new systems may improve the likelihood that CMS vendor payments could be continuously levied in the future, FMS and CMS officials have not held discussions to ensure this result. Medicare contractors already offset payments to vendors for various reasons, such as recovery of previously overpaid claim amounts, which could result from either inadvertent billing errors or intentional misrepresentations. However, FMS and CMS officials have not explored whether these processes for offsetting vendor payments could support including some CMS vendor payments in the continuous levy program before late 2006. In addition to the specific levy authority IRS has through the continuous levy program under section 6331(h), IRS has general levy authority under Internal Revenue Code section 6331 to collect federal tax debts by issuing a levy notice directly to a federal agency. The continuous levy program provides IRS with an automated process for serving tax levies and collecting delinquent taxes through FMS. On the other hand, in order to levy payments under its general levy authority IRS must identify that an agency is making payments to a delinquent taxpayer. Unlike the 15-percent levy amount limitation for the continuous levy program, under its general levy authority, IRS can levy up to 100 percent of a taxpayer's property and rights to property in some cases. IRS currently uses its general levy authority to levy federal salary and retirement payments. However, according to officials, IRS uses its general levy authority less frequently to levy federal vendor payments, partly because IRS has limited ability to identify and serve levies against vendor payments. According to IRS officials, almost all information IRS has on vendor payments comes from annual information returns that federal agencies and contractors are required to file for such payments. It takes IRS several months to process information returns and make them available to collection staff so they can identify potential levy sources. According to IRS officials, information return data are of little use because there is no certainty that an individual or business that received payments in a past year would receive payments in the current year. IRS officials acknowledged that obtaining current information on taxpayers that may be receiving DOD and CMS vendor payments might give IRS collection staff an opportunity to levy such payments under its general levy authority until such time as these payments could be included in the continuous levy program. DOD and CMS have databases that could be used to provide IRS with current information concerning individuals and businesses receiving vendor payments. However, IRS has not requested such information from these agencies. According to DOD officials, a DOD Central Contractor Register currently includes information on over 160,000 vendors registered to do business with DOD, including a vendor's TIN and name, and an extract of this information could be provided periodically to IRS.Medicare contractors we spoke with stated that it may be possible to provide periodic extracts of payment data on recently paid provider claims, while CMS officials indicated that extracts from centralized agency databases, such as the National Claims History File, could also be made available to IRS. Information from each of these databases could be useful to IRS for identifying a current source against which to serve a levy under IRS' general levy authority. For example, IRS could arrange to obtain information from these agencies concerning vendors that currently receive periodic payments and when such payments are made, and if such vendors have federal tax delinquencies, work out a schedule for levying subsequent payments. As with IRS' other collection efforts, resource constraints and other collection priorities may limit the amount of delinquent taxes that IRS could recover from DOD and CMS vendors using its general levy authority. However, until all such vendor payments could be included in the continuous levy program, obtaining periodic vendor information from these agencies could enable IRS to begin collecting some portion of the delinquent taxes owed by these vendors. IRS' mission includes providing taxpayers with top quality service by applying the tax law with integrity and fairness to all. Until more types of federal payments are available, the current continuous levy program results in unequal treatment of delinquent taxpayers depending on whether their federal payments are made by FMS on behalf of other agencies or directly by the agencies themselves. Delinquent taxpayers receiving payments from FMS generally are subject to the continuous levy program; those receiving payments directly from federal agencies are not and IRS is limited to using its general levy authority in order to levy some of these non-FMS payments. Although practical issues may impede achieving similar treatment of all delinquent taxpayers receiving federal payments, progress could be made and substantial additional revenues could be collected--in fairness to those who properly pay their taxes. FMS has plans for including USPS salary and DOD salary and retirement payments in the continuous levy program. Similar plans do not exist, however, for including all vendor payments from USPS, DOD, and CMS in the continuous levy program. Discussions among FMS, IRS, and the agencies have the potential to ensure that all of these payments are included in the continuous levy program as soon as practical, and for possibly accelerating the inclusion of certain types or categories of vendor payments. Further, the effectiveness of the current continuous levy program and its expansion to other payments could be enhanced if IRS were to begin sharing the different names that businesses use for tax purposes with FMS. This would treat businesses more similarly to how IRS already handles individual taxpayers in the continuous levy program. In the interim, until the continuous levy program can be extended to more of the payments made directly by agencies, IRS' use of its existing general levy authority could be improved to better ensure that all delinquent taxpayers receiving federal payments are subject to potential collection action. DOD and CMS have available data that could be shared with IRS to increase IRS' ability to identify those taxpayers' whose federal payments could be practically and effectively levied under the general levy program. To enhance the value of agency payment data that are available for the continuous levy program, we recommend that the Commissioner of Internal Revenue provide FMS with a file of all business names that IRS has for each business taxpayer that owes federal taxes and meets the program criteria. To increase the potential for collecting delinquent federal taxes owed by federal vendors, we recommend that the Commissioner of Internal Revenue and the Commissioner of the Financial Management Service jointly initiate specific discussions with USPS, DOD, and CMS to develop plans for obtaining vendor payments from the respective agencies for the continuous levy program. The discussions should cover plans for including all of the agencies' vendor payments in the continuous levy program, as well as options for including some of their vendor payments in the program on an accelerated basis. To ensure that IRS has updated information on vendor payments to aid in identifying possible levy sources for use under its general levy authority, we recommend that the Commissioner of Internal Revenue work with DOD and CMS officials to develop the means for these agencies to periodically provide IRS with vendor information that is more current than that which IRS receives now through annual information returns. We received written comments on our draft report from the Commissioner of Internal Revenue (see app. II) and the Commissioner of the Financial Management Service (see app. III). Both the IRS and FMS Commissioners offered factual updates, clarifications, or technical comments that we have incorporated throughout this report where appropriate. The Commissioner of Internal Revenue generally agreed with our recommendations. Regarding our recommendation that the Commissioner of the Financial Management Service initiate discussions with USPS, DOD, CMS, and IRS officials to develop plans for obtaining vendor payments from the respective agencies for the continuous levy program, the Commissioner of FMS disagreed that initiating discussions with these agencies was FMS' responsibility. Rather, the Commissioner stated that it was IRS' responsibility to initiate and jointly schedule with FMS the implementation of the continuous levy program for DOD, USPS, and CMS vendor payments. The Commissioner further stated that once IRS is ready to develop this process, FMS will work with the agencies and IRS to make the necessary system changes to allow IRS to continuously levy these payments. We agree with the FMS Commissioner's view that IRS has the responsibility to participate in leading discussions for implementing the continuous levy program for vendor payments. However, because FMS is a principal component in developing the necessary processes to effectively implement continuous levies, we also believe that FMS must be equally involved in the discussions on extending the continuous levy program to vendor payments paid by agencies other than FMS. Accordingly, we modified our recommendation to state that the IRS and FMS Commissioners should jointly initiate specific discussions with USPS, DOD, and CMS for this purpose. Having been made aware of this modification to our recommendation before providing comments, the IRS Commissioner agreed in his written comments to participate with FMS in discussions with the agencies and to assist FMS in developing plans for obtaining vendor payments for inclusion in the continuous levy program. To enhance the value of agency payment data available to the continuous levy program, the Commissioner of Internal Revenue agreed to provide FMS with a file of all business names that IRS has for each business taxpayer that owes federal taxes and meets the program criteria. The Commissioner stated that a draft Request for Information Services has been submitted to begin the formal process necessary to make this change, and the change is expected to be completed by January 2003. To ensure that IRS has updated information on vendor payments to aid in identifying possible levy sources for use under its general levy authority, the Commissioner agreed to pursue the costs and benefits of securing possible levy sources from such agencies as DOD as well as pursuing more frequent levy source updates from internal IRS sources. We also received written comments from the Deputy Chief Financial Officer, Office of the Under Secretary of Defense (see app. IV), and oral comments from a representative of the United States Postal Service, in which they generally agreed with our recommendations. In addition, we received technical comments from the Acting Deputy Administrator of the Centers for Medicare & Medicaid Services, in which he stressed that CMS vendor payments could not be included in the continuous levy program until a new CMS integrated accounting system is completed. Given the substantial delinquent taxes that could potentially be recovered from CMS vendors and that CMS contractors already offset vendor payments for various other reasons, we believe that discussions between IRS, FMS, and CMS should explore whether some portion of the vendor payments could be included on an accelerated basis. As agreed with your offices, unless you announce the contents of this report earlier, we plan no further distribution until 30 days from the date of this letter. At that time, we will send copies to the Ranking Minority Member, House Committee on Ways and Means; Ranking Minority Member, Subcommittee on Oversight; and the Chairman and Ranking Minority Member, Senate Committee on Finance. We will also send copies to the Commissioner of Internal Revenue, Commissioner of the Financial Management Service, Secretary of Defense, Administrator of the Centers for Medicare & Medicaid Services, Postmaster General, and other interested parties. Copies of this report will also be made available to others upon request. If you have any questions concerning this report, please contact Ralph Block at (415) 904-2000 or me at (202) 512-9110. Key contributors to this work are listed in appendix V. Our objectives in this report were to (1) determine the number of delinquent taxpayers receiving federal payments from the United States Postal Service (USPS), Department of Defense (DOD), and Centers for Medicare & Medicaid Services (CMS) that would be affected and the tax debt that might be recovered if they were to be included in the continuous levy program; (2) determine whether these types of payments could be included in the continuous levy program and the timeframes for doing so; and (3) identify other actions that could be taken to enhance IRS' ability to manually levy federal payments to delinquent individuals and businesses that are not currently included in the continuous levy program. To determine the number of delinquent taxpayers receiving federal payments from USPS, DOD, and CMS that would be affected and the tax debt that might be recovered if they were included in the continuous levy program, we obtained and matched IRS' accounts receivable records as of June 30, 2000, that met IRS' continuous levy program criteria with agency and contractor payment records as follows: For wage and salary payments, USPS provided payments for a biweekly pay period made on June 23, 2000; for vendor payments, USPS provided payments made during the April through June 2000 quarter. For DOD military salary, retirement, and reserve payments, the DOD Defense Manpower Data Center provided payments made for the month of June 2000; for DOD civilian salary, the DOD Defense Management Data Center provided payments made for the biweekly pay period ending July 1, 2000; for DOD vendor and contractor payments, the Defense Finance and Accounting Service provided payments made during the April through June 2000 quarter. For CMS Medicare vendor payments, Medicare contractors provided payments made during the April through June 2000 quarter. For payments that matched on both taxpayer identification number (TIN) and name, we calculated either 15 percent of the payment or the actual amount of tax owed if it was less than 15 percent of the payment to determine the amount that could be levied. All estimates of the delinquent taxes that might be recovered throughout this report have been annualized. Although some taxpayers might take actions to avoid a continuous levy, we believe our estimates of the tax debt that might be recovered are understated because we did not receive data for over 50 percent of Medicare payments made during the April through June 2000 quarter. In addition, we were unable to match about $3.4 billion in DOD vendor payments against IRS' accounts receivable data because the payment records did not contain a TIN. Based on our prior work involving the continuous levy program, we were aware that problems with information contained in vendor payment records could make such records unsuitable for matching against IRS' accounts receivable file, thus reducing the amount of tax debt that might be recovered. To identify additional debt that could be collected if problems with vendor payment records were corrected, we analyzed agency payment records to identify instances of a missing or inconsistent payee TIN or name. We selected all instances in which the TIN in the payment records matched the TIN in IRS' accounts receivable records, but the name in the payment records did not match the name in IRS' records. For these instances, we then reviewed IRS' records to determine whether it had additional information to indicate that the payee was in fact the delinquent taxpayer in question. To determine whether USPS, DOD, and CMS payments could be included in the continuous levy program and the timeframes for doing so, we interviewed IRS officials responsible for the continuous levy program. We also interviewed Financial Management Service (FMS) officials involved in recent discussions with various agencies in an attempt to include non- Treasury disbursed payments in the Treasury Offset Program. In addition, we interviewed officials from USPS, DOD, and CMS as well as selected Medicare contractors responsible for processing the various types of payments. To identify actions that could be taken to enhance IRS' ability to manually levy federal payments from delinquent individuals and businesses that are not included in the continuous levy program, we discussed this issue with IRS officials and officials from USPS, DOD, and CMS. We identified various agency databases that could be used to provide IRS with updated vendor payment sources. We also discussed IRS' current levy procedures with IRS officials, and reviewed the related tax law governing these procedures. We did our work at IRS, FMS, and USPS headquarters in Washington, D.C.; DOD headquarters in Arlington, VA; CMS headquarters in Baltimore, MD; Defense Finance and Accounting Service Centers in Columbus and Cleveland, OH, and Denver, CO; Defense Manpower Data Center in Seaside, CA; and the CMS Regional Office in San Francisco, CA. We also interviewed Medicare contractors located in Alabama, California, Florida, Maryland, New York, North Dakota, Pennsylvania, Texas, and Wisconsin. The following are GAO's comments on the Internal Revenue Service's letter dated July 16, 2001. 1. In response to IRS' concern that our text may have given the impression that IRS does not levy any federal payments that are not subject to the continuous levy program, we modified footnote 3 to recognize that IRS does levy such payments under its general levy authority. 2. IRS' suggested change has been incorporated into the text. 3. IRS' suggested change is included in footnote 10. 4. We deleted "indirect" from our text. While it is debatable whether the benefit would be direct or indirect, levy notices do sometimes result in taxpayers making other arrangements to resolve their tax liability. 5. IRS' suggested change has been incorporated into the text. 6. In response to IRS' concern with our use of the term "disparate treatment" of taxpayers in our conclusions, we have revised our text to state that whether or not taxpayers are included in the continuous levy program is predicated in part on whether their federal payments are made by FMS or directly by other agencies. We believe that this results in unequal treatment of delinquent taxpayers who receive federal payments and that this will only be corrected when more types of federal payments are available to the program. In addition to those named above, Wendy Ahmed, Tom N. Bloom, Robert C. McKay, Ellen Rominger, James J. Ungvarsky, and Elwood D. White made key contributions to this report.

Summary:
The Internal Revenue Service (IRS) seeks to apply the law fairly to all taxpayers. Under the continuous levy program, however, taxpayers who receive federal payments are treated differently depending on whether the payments are made by the Federal Management Service (FMS) on behalf of other agencies or directly by the agencies themselves. Delinquent taxpayers receiving payments from FMS generally are subject to continuous levy, while those receiving payments directly from federal agencies are not. Although it may prove impractical to treat similarly all delinquent taxpayers who receive federal payments, progress--and substantial additional revenues--could be achieved in this area. FMS plans to include salaries at the U.S. Postal Service and salaries and retirement payments at the Defense Department (DOD) in the continuous levy program. There are similar plans to include all vendor payments from the Postal Service, DOD, and the Centers for Medicare and Medicaid Services. Discussions among FMS, IRS, and the agencies could ensure that all of these payments all included in the continuous levy program as soon as possible. These discussions could also speed the inclusion of some categories of vendor payments. The continuous levy program could also benefit if IRS were to begin sharing with FMS the different names that businesses use for tax purposes--an approach that IRS already uses for individual taxpayers in the program. In the meantime, until the program is expanded to include more direct payments from agencies, IRS could take steps to ensure that all delinquent taxpayers receiving payments are subject to potential collection activity. DOD and CMS have data on hand that they could share with IRS to strengthen IRS' ability to identify taxpayers whose federal payments could be levied under the program.