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Uptiq's AI agents classify, extract, and spread every business tax filing your credit team sees — Form 1065, 1120, 1120-S, 990, 8825, and every supporting schedule (K-1, M-1, M-2, M-3, and more) — at 95%+ accuracy, with a straight line from source document to your credit memo.
Trusted by financial institutions across banking, lending & credit
What Is This
A business tax return is rarely just one document — it's a core form plus a stack of schedules, and the schedule mix changes by entity type, tax year, and preparer.
Business tax returns are the primary evidence lenders use to underwrite recurring business income: entity-level returns (Form 1120, 1120-S, 1065, 990) paired with supporting schedules that break income, balance sheet, and ownership detail out further. Underwriting a single borrower often means reading a C-corp return one year, an S-corp return the next, and a partnership return for a co-borrowing entity — each with its own schedule set.
Uptiq's Document AI treats the whole filing as one package: it classifies which form and schedules are present, extracts every line item, and reconciles the schedule-level detail (K-1 allocations, M-1/M-2/M-3 book-tax differences) back to the return as a whole, rather than requiring a separate manual pass per schedule.
The bottleneck isn't reading one return — it's reading 3–5 years of returns, across however many entities and schedules a deal touches, without losing the thread between them.
The Solution
Uptiq's Intake and Underwriting agents classify every page of a business tax filing, extract and spread it to your standardized template, and reconcile the schedules back to the core return.
The result: underwriters spend their time on the credit decision, not on re-keying schedules — measured at 41% faster underwriting cycle time and 36% less time spent on spreading and extraction across production deployments.
Supported Forms
Uptiq's Document AI registry supports 27 distinct business tax filing types — core returns and every commonly filed supporting schedule.
| Document | Type code | What it captures |
|---|---|---|
| Form 1065 | FORM 1065 | U.S. Return of Partnership Income — partnership ordinary income and deductions |
| Form 1120 | FORM 1120 | U.S. Corporation Income Tax Return — C-corp taxable income |
| Form 1120-S | FORM 1120-S | U.S. Income Tax Return for an S Corporation — pass-through income |
| Form 8825 | FORM 8825 | Rental real estate income and expenses of a partnership or S corp |
| Form 990 | FORM 990 | Return of Organization Exempt from Income Tax — nonprofit financials |
| Document | Type code | What it captures |
|---|---|---|
| Schedule B (Form 1065) | SCHEDULE B(FORM 1065) | Other information about the partnership |
| Schedule B (Form 1120-S) | SCHEDULE B(FORM 1120-S) | Other information about the S corporation |
| Schedule C | SCHEDULE C | Supplementary schedule associated with the filed return |
| Schedule C (Form 1120) | SCHEDULE C(FORM 1120) | Dividends, inclusions, and special deductions |
| Document | Type code | What it captures |
|---|---|---|
| Schedule K (Form 1065) | SCHEDULE K(FORM 1065) | Partners' distributive share items, in aggregate |
| Schedule K (Form 1120) | SCHEDULE K(FORM 1120) | Other information for the corporation |
| Schedule K (Form 1120-S) | SCHEDULE K(FORM 1120-S) | Shareholders' distributive share items, in aggregate |
| Schedule K-1 | SCHEDULE K-1 | Individual partner/shareholder share of income, deductions, and credits |
| Schedule K-1 (Form 1065) | SCHEDULE K-1(FORM 1065) | Partner's share of income, deductions, and credits |
| Schedule K-1 (Form 1120-S) | SCHEDULE K-1(FORM 1120-S) | Shareholder's share of income, deductions, and credits |
| Document | Type code | What it captures |
|---|---|---|
| Schedule L (Form 1065) | SCHEDULE L(FORM 1065) | Balance sheet per the partnership's books |
| Schedule L (Form 1120) | SCHEDULE L(FORM 1120) | Balance sheet per the corporation's books |
| Schedule L (Form 1120-S) | SCHEDULE L(FORM 1120-S) | Balance sheet per the S corporation's books |
| Schedule M-1 (Form 1065) | SCHEDULE M-1(FORM 1065) | Reconciliation of book income to return income |
| Schedule M-1 (Form 1120) | SCHEDULE M-1(FORM 1120) | Reconciliation of book income to return income |
| Schedule M-1 (Form 1120-S) | SCHEDULE M-1(FORM 1120-S) | Reconciliation of book income to return income |
| Schedule M-2 (Form 1065) | SCHEDULE M-2(FORM 1065) | Analysis of partners' capital accounts |
| Schedule M-2 (Form 1120) | SCHEDULE M-2(FORM 1120) | Analysis of unappropriated retained earnings |
| Schedule M-2 (Form 1120-S) | SCHEDULE M-2(FORM 1120-S) | Analysis of accumulated adjustments account |
| Schedule M-3 (Form 1065) | SCHEDULE M-3(FORM 1065) | Net income reconciliation for larger partnerships |
| Schedule M-3 (Form 1120) | SCHEDULE M-3(FORM 1120) | Net income reconciliation for larger corporations |
| Schedule M-3 (Form 1120-S) | SCHEDULE M-3(FORM 1120-S) | Net income reconciliation for larger S corporations |
{
"filing_type": "FORM 1120-S",
"tax_year": 2025,
"entity_name": "[Entity Name]",
"ein": "[XX-XXXXXXX]",
"ordinary_business_income": 482000,
"schedules_detected": ["K", "K-1", "L", "M-1", "M-2"],
"schedule_k1_count": 3,
"book_tax_reconciled": true
}Key Benefits
Core returns and every supporting schedule are classified and extracted through the same pipeline — no separate manual process per schedule.
Partner and shareholder K-1 allocations are traced and reconciled automatically, across however many K-1s a filing contains.
Schedule M-1, M-2, and M-3 reconciliations are extracted and checked against the core return, not re-derived by hand.
Every extracted field traces back to its source page — examiner-ready documentation on every filing, every year.
100+ native integrations across loan origination systems, cores, and credit memo workflows. No new infrastructure.
Process multi-entity, multi-year borrower files without adding headcount as your commercial book grows.
Proven at Scale
Results represent aggregate outcomes across production deployments. Individual results may vary.
How It Works
The business tax return — core form plus every attached schedule — arrives via email, portal, or upload. AI classifies every page automatically.
Line items across the core form and all attached schedules are extracted at 95%+ accuracy and spread into your standardized template.
K-1 allocations are traced across partners or shareholders; M-1/M-2/M-3 figures are reconciled against the core return.
Reconciled, spread figures land in your LOS and feed directly into automated credit memo drafting.
Common Questions
Related Document Types
Book a 30-minute session. We'll run a live extraction and reconciliation demo on your own filing types.
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