> ## Documentation Index
> Fetch the complete documentation index at: https://docs.layerfi.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Overview

Tax Estimates is a suite of endpoints that project a business's federal and state tax liability for a given year, based on their categorized income, deductible expenses, and tax profile.

<Info>
  To enable the Tax Estimates feature for your customers, request access from your Layer representative.
</Info>

## Core components

* [Get tax overview](/api-reference/v1/tax-estimates/get-tax-overview) and [Get tax summary](/api-reference/v1/tax-estimates/get-tax-summary): high-level, dashboard-ready roll-ups of projected taxes owed.
* [Get tax details](/api-reference/v1/tax-estimates/get-tax-details): the full itemized calculation (AGI, deductions, federal income tax, self-employment tax, state tax, quarterly estimates).
* [Get tax payments](/api-reference/v1/tax-estimates/get-tax-payments): quarterly estimated tax payment history and balances.
* [Get tax checklist](/api-reference/v1/tax-estimates/get-tax-checklist): actionable items that need the business owner's attention before the estimate is complete.
* [Get tax profile](/api-reference/v1/tax-estimates/get-tax-profile), [Create tax profile](/api-reference/v1/tax-estimates/create-tax-profile), and [Update tax profile](/api-reference/v1/tax-estimates/update-tax-profile): the filing inputs (filing status, W-2 income, withholding, state, deductions) that drive every calculation.
* [Export tax documents](/api-reference/v1/tax-estimates/export-tax-documents): generate downloadable tax packets, Schedule C, and payment history.

## Tax calculation overview

Business revenue and deductible expenses are derived from the business's categorized ledger data via the Schedule C report. Only categorized transactions are included; uncategorized transactions are excluded from the calculation but surfaced on the [tax checklist](/api-reference/v1/tax-estimates/get-tax-checklist).

For the full breakdown of how each number is computed, see [Get tax details](/api-reference/v1/tax-estimates/get-tax-details).