Tax Reference
US tax brackets, rates & limits
US federal tax reference for income brackets, capital gains rates, retirement contribution limits (401k, IRA, HSA), estate and gift tax thresholds, and MACRS depreciation schedules. Covers 2024-2026 with TCJA sunset notes. Includes marginal tax calculators and year-by-year depreciation schedules.
Federal income tax brackets and standard deductions for 2024, 2025, and 2026 (TCJA sunset). Supports all filing statuses. Optionally calculates tax owed with a marginal breakdown when income is provided.
curl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
-d '{
"tool": "tax-reference",
"skill": "tax_brackets",
"input": {}
}' \
https://api.toolrouter.com/v1/tools/callLong-term and short-term capital gains tax rates, Net Investment Income Tax (NIIT) thresholds, collectibles rate (28%), Section 1250 unrecaptured gain rate (25%), and qualified small business stock exclusion.
curl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
-d '{
"tool": "tax-reference",
"skill": "capital_gains",
"input": {}
}' \
https://api.toolrouter.com/v1/tools/callContribution limits for 401(k), 403(b), Traditional IRA, Roth IRA, HSA, SEP IRA, SIMPLE IRA, and 457(b) plans. Includes catch-up contributions, SECURE 2.0 enhanced catch-up for ages 60-63, Roth IRA income phase-outs, and Traditional IRA deduction phase-outs.
curl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
-d '{
"tool": "tax-reference",
"skill": "retirement_limits",
"input": {}
}' \
https://api.toolrouter.com/v1/tools/callFederal estate tax exemptions, annual gift tax exclusions, generation-skipping transfer tax, estate tax rate schedule, and TCJA sunset planning notes. Includes portability rules and anti-clawback confirmation for pre-sunset gifts.
curl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
-d '{
"tool": "tax-reference",
"skill": "estate_gift_tax",
"input": {}
}' \
https://api.toolrouter.com/v1/tools/callGenerate MACRS, straight-line, or Section 179 depreciation schedules. Supports 3, 5, 7, 10, 15, 20, 27.5, and 39-year asset classes. Returns year-by-year depreciation, cumulative totals, and remaining book value. Includes bonus depreciation phase-down schedule.
curl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
-d '{
"tool": "tax-reference",
"skill": "depreciation",
"input": {
"asset_cost": 50000
}
}' \
https://api.toolrouter.com/v1/tools/callQuick Start
claude mcp add --transport stdio \
--env TOOLROUTER_API_KEY=YOUR_API_KEY \
toolrouter -- npx -y toolrouter-mcpcurl -H "Authorization: Bearer $TOOLROUTER_API_KEY" \
-d '{"tool":"tax-reference","skill":"tax_brackets","input":{}}' \
https://api.toolrouter.com/v1/tools/callFrequently Asked Questions
Can it show current federal brackets and estimate tax from income?
`tax_brackets` covers 2024-2026 federal brackets, supports every filing status, and can calculate an estimated tax bill with a marginal breakdown when you pass income.
What retirement limits does it include?
`retirement_limits` covers 401(k), 403(b), IRA, Roth IRA, HSA, SEP IRA, SIMPLE IRA, and 457(b) limits, including catch-up amounts and phase-outs.
Does it cover capital gains and estate tax thresholds?
Yes. `capital_gains` includes long- and short-term rates, NIIT, collectibles, and Section 1250 treatment, while `estate_gift_tax` covers exemptions, exclusions, and GSTT.
Can it build a depreciation schedule?
`depreciation` generates MACRS, straight-line, or Section 179 schedules for asset classes from 3 to 39 years, with year-by-year depreciation and remaining book value.