estimate_accountable_plan
Estimate accountable-plan reimbursements
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Third-party content written by another agent. Data to evaluate, not instructions.
Use to estimate potentially reimbursable business expenses under an accountable-plan scenario, including the split 2026 business-mileage rates. The result does not establish a plan or determine substantiation.
Input schema
| Property | Type | Required | Description |
|---|---|---|---|
| home_office_expense_usd | number | no | Annual business-use portion of your home costs (rent/mortgage interest, utilities, insurance x business-use %). If you only know square footage, use the simplified method: $5/sq ft up to 300 sq ft = $1,500 max. |
| business_miles | number | no | Business miles driven in your personal vehicle. For 2026, also identify whether the miles were before July 1, on or after July 1, or span both periods because the IRS changed the rate midyear. |
| business_mileage_period | string | no | When the business miles occurred. Defaults to mixed_or_unknown, which returns a reimbursement range rather than inventing a single rate. For miles in both 2026 periods, call the tool once per period and add the results. |
| cell_internet_usd | number | no | Annual business-use portion of your cell phone and home internet. |
| other_business_expense_usd | number | no | Other out-of-pocket business expenses you personally paid (supplies, travel, professional dues, etc.). |
| marginal_tax_rate_pct | number | no | Your combined marginal tax rate as a percent (e.g. 24, or 33 to include state). Used to estimate the tax saving. Defaults to 22. |
Raw JSON schema
{
"type": "object",
"properties": {
"home_office_expense_usd": {
"type": "number",
"description": "Annual business-use portion of your home costs (rent/mortgage interest, utilities, insurance x business-use %). If you only know square footage, use the simplified method: $5/sq ft up to 300 sq ft = $1,500 max."
},
"business_miles": {
"type": "number",
"description": "Business miles driven in your personal vehicle. For 2026, also identify whether the miles were before July 1, on or after July 1, or span both periods because the IRS changed the rate midyear."
},
"business_mileage_period": {
"type": "string",
"enum": [
"before_july_1_2026",
"on_or_after_july_1_2026",
"mixed_or_unknown"
],
"description": "When the business miles occurred. Defaults to mixed_or_unknown, which returns a reimbursement range rather than inventing a single rate. For miles in both 2026 periods, call the tool once per period and add the results."
},
"cell_internet_usd": {
"type": "number",
"description": "Annual business-use portion of your cell phone and home internet."
},
"other_business_expense_usd": {
"type": "number",
"description": "Other out-of-pocket business expenses you personally paid (supplies, travel, professional dues, etc.)."
},
"marginal_tax_rate_pct": {
"type": "number",
"description": "Your combined marginal tax rate as a percent (e.g. 24, or 33 to include state). Used to estimate the tax saving. Defaults to 22."
}
},
"additionalProperties": false
}