GTAS is the Governmentwide Treasury Account Symbol Adjusted Trial Balance System used for agency ATB reporting; CARS is the Central Accounting Reporting System for Treasury central accounting and TAS-BETC transaction reporting.
Treasury GTAS and CARS blueprint for governmentwide reporting and central accounting
GTAS and CARS / Treasury Reporting Blueprint
Explore GTAS and CARS as Treasury/Fiscal Service reporting systems: GTAS for agency adjusted trial balance submission and edits, and CARS for central accounting, TAS-BETC classified transactions, FBWT, MTS, Combined Statement, and Financial Report support.
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Core GTAS/CARS lineage scenarios
ATB / TAS-BETC -> Treasury -> ReportsSystem profile
What it is, who uses it, and why it matters
Federal agency financial-reporting teams, Treasury/Fiscal Service, OMB reporting stakeholders, disbursing and collections partners, FBWT reconciliation teams, IGT/trading-partner teams, and auditors rely on GTAS/CARS data or outputs.
GTAS collects agency proprietary and budget-execution ATB data with edits and certification; CARS records central accounting transactions, TAS-BETC classifications, FBWT support, and Treasury report data.
Active Treasury/Fiscal Service reporting systems per official Fiscal Service pages; exact file formats, edit logic, and role workflows require current Treasury documentation.
Together they connect agency trial balances and Treasury central accounting so the government can produce accurate monthly reporting, Combined Statement, Financial Report, FBWT support, and audit evidence.
The blueprint models 6 GTAS/CARS source/partner categories; authoritative interface counts require Treasury records.
Agency Adjusted Trial BalancesDDRS / ERP Reporting SourcesPayments / Collections / DisbursingFBWT / General Fund / Central AccountsIPAC / G-Invoicing / IGTAgency Certification / Audit Support
Clickable architecture map
End-to-end flow: business event to financial statement
Cards in the selected GTAS/CARS scenario path are highlighted. Click any card to inspect fields, T-codes, audit questions, and risks.
Source
Agency and Treasury Source Events
Agency ATB, DDRS, ERP, payment, collection, disbursing, IPAC, FBWT, and General Fund events that feed Treasury reporting.
GTAS/CARS
GTAS and CARS Core Processing
GTAS adjusted trial-balance submission and edit processing plus CARS central accounting and TAS-BETC transaction reporting.
Detail
Treasury Reporting Detail
ATB line, TAS/USSGL, domain attributes, TAS-BETC, ALC, payment/collection, FBWT, IPAC, IGT, and certification detail.
Control
Validation and Reconciliation
GTAS fatal/edit checks, USSGL validation, CARS classification, FBWT reconciliation, TAS-BETC tie-outs, certification, and audit control.
Outputs
Treasury Outputs
Fiscal Service accounting data, GTAS status, MTS, Combined Statement, Financial Report support, Fiscal Data, and agency feedback outputs.
Reports
Governmentwide Reports
Monthly Treasury Statement, Combined Statement, Financial Report of the U.S. Government, FBWT support, and agency reporting evidence.
Scenario lineage explorer
Agency ATB to GTAS and Financial Report Support
Traces agency adjusted trial balance data through GTAS submission, edits, certification, and Financial Report support.
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Business flow
- The agency prepares adjusted trial balance data from ERP, DDRS, or close packages.
- GTAS receives the ATB by TAS, USSGL, reporting attributes, period, and balance/activity amounts.
- Line-level detail preserves the submission population for edit resolution and audit support.
- GTAS fatal, warning, and accounting edits validate the data before certification.
- Certified GTAS data supports Treasury, OMB, and the Financial Report of the U.S. Government.
AI / audit exception tests
- ATB not tied to GL
- fatal edit unresolved
- missing attribute
- late submission
- FR amount not tied to certified GTAS
Data model and tables
Where GTAS/CARS data lives and how the pieces join
GTAS fields follow the Treasury bulk file format for fiscal year 2026. CARS records are described logically.
| Table or record | Area | Holds | Key fields | Links to |
|---|---|---|---|---|
| GTAS ATB record: TAS | GTAS | Allocation transfer agency, agency identifier, period of availability, availability type, main account, sub-account | Positions 7 to 28 | Treasury TAS master |
| GTAS ATB record: account and amount | GTAS | Six-digit USSGL account, amount with two implied decimals, debit or credit, beginning or ending | Positions 29 to 57 | USSGL attribute table |
| GTAS ATB record: budgetary attributes | GTAS | Authority type, reimbursable flag, apportionment category, program, year of budget authority, BEA category | Positions 58 to 66, 75 to 79 | SF 133 lines |
| GTAS ATB record: trading partner | GTAS | Federal indicator, partner agency, partner main account | Positions 67 to 74 | Intragovernmental eliminations |
| GTAS ATB record: other attributes | GTAS | Exchange, custodial, budget impact, prior year adjustment, cohort year, emergency fund code, reduction type, object class | Positions 80 to 98 | Statement crosswalks |
| CARS account statement | CARS | Fund Balance with Treasury activity and balance by TAS | TAS, period | USSGL 1010 by TAS |
| CARS classified transaction | CARS | Payment or collection with its classification | Agency Location Code, TAS, BETC | Disbursing system voucher |
Join paths for tracing a balance to its source
- GTAS to DDRS: TAS components and six-digit USSGL account.
- GTAS to CARS: USSGL 1010 by TAS equals the CARS balance for that TAS.
- CARS transaction to disbursing voucher: Agency Location Code, date, and voucher or schedule number.
Audit lens
Where the AI UoT analyzer should watch
These are the places where completeness, accuracy, timeliness, and traceability commonly break.
Completeness
Source events missing from the ERP, subledger items not posted to GL, or financial statement balances without supporting populations.
Traceability
Broken reference keys across feeder, interface, subledger object, GL document, trial balance, and statement line item.
Timing
Authorization, receipt, invoice, voucher, payment, and GL posting dates crossing accounting periods without appropriate accrual or adjustment.
Supportability
Transactions posted to GL without valid approval, contract, receipt, invoice, voucher, asset record, or other audit evidence.
Enterprise infrastructure
Support services that make the blueprint work
GTAS Submission Governance
Monthly reporting windows, ATB load, fatal/warning edits, certification, resubmission control, source tie-outs, and status reporting.
CARS Central Accounting
TAS-BETC classification, ALC, payment and collection detail, receipt/outlay reporting, CARS transaction correction, and central accounting controls.
FBWT Reconciliation
Agency and Treasury balance comparison, CARS source detail, reconciling items, timing differences, corrections, owner assignment, and evidence retention.
IGT and Trading Partner Controls
IPAC, G-Invoicing, TAS/BETC, buyer/seller pairs, trading partner attributes, settlement differences, and governmentwide elimination support.
Governmentwide Reporting
Monthly Treasury Statement, Combined Statement, Financial Report of the U.S. Government, OMB/Treasury reporting, and Fiscal Service outputs.
Audit Evidence
Agency GL/DDRS tie-outs, GTAS ATB lines, CARS transactions, FBWT packages, edit reports, certification evidence, and report-to-source reconciliation.