Read-only small business Q&A, product prices, IRS datasets and calculators from ProfitDrawer.
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Works out how many months a loan takes to pay off and the total interest, month by month (one month of interest = APR / 12 is added, then the payment is taken off), and what an optional extra monthly payment saves in interest and time. Same method as https://profitdrawer.com/tools/loan-payoff-calculator.html. A close estimate; lenders can differ slightly.
Loan balance in USD.
Annual interest rate (APR) in percent, for example 6.
Monthly payment in USD.
Optional extra payment each month in USD.
Works out how many months a loan takes to pay off and the total interest, month by month (one month of interest = APR / 12 is added, then the payment is taken off), and what an optional extra monthly payment saves in interest and time. Same method as https://profitdrawer.com/tools/loan-payoff-calculator.html. A close estimate; lenders can differ slightly.
| Argument | Type | Description |
|---|---|---|
| balance* | number | Loan balance in USD. |
| apr_percent* | number | Annual interest rate (APR) in percent, for example 6. |
| extra_payment | number | Optional extra payment each month in USD. |
| monthly_payment* | number | Monthly payment in USD. |
{
"type": "object",
"required": [
"balance",
"apr_percent",
"monthly_payment"
],
"properties": {
"balance": {
"type": "number",
"minimum": 0,
"description": "Loan balance in USD."
},
"apr_percent": {
"type": "number",
"minimum": 0,
"description": "Annual interest rate (APR) in percent, for example 6."
},
"extra_payment": {
"type": "number",
"minimum": 0,
"description": "Optional extra payment each month in USD."
},
"monthly_payment": {
"type": "number",
"minimum": 0,
"description": "Monthly payment in USD."
}
},
"additionalProperties": false
}Works out a price for one service job: cost = hours x hourly pay + materials + travel + monthly overhead / jobs per month; price = cost / (1 - profit margin). Also returns profit per job, monthly revenue and break-even jobs per month. Same formula as https://profitdrawer.com/tools/price-per-job-calculator.html. Margins above 95% are treated as 95%.
| Argument | Type | Description |
|---|---|---|
| hours* | number | Hours one job takes. |
| travel | number | Travel cost per job in USD. Default 0. |
| materials | number | Materials per job in USD. Default 0. |
| hourly_rate* | number | Your pay per hour in USD. |
| jobs_per_month | number | Jobs expected per month; the overhead is shared across them. Default 0. |
| monthly_overhead | number | Monthly overhead (insurance, phone, software, ...) in USD. Default 0. |
| profit_margin_percent* | number | Profit margin as a percent of the price, for example 20. |
Estimates how much of a self-employed profit to set aside for taxes: set-aside = profit x chosen percent, and the US self-employment tax part = profit x 92.35% x 15.3% (12.4% Social Security + 2.9% Medicare), per month, quarter or year. Same formula as https://profitdrawer.com/tools/self-employed-tax-calculator.html. An estimate, not tax advice.
| Argument | Type | Description |
|---|---|---|
| period | string | The period the profit is for. Default month. |
| profit* | number | Profit (income minus business expenses) for one period, in USD. |
| set_aside_percent* | number | Share of the profit to set aside, in percent, for example 30. |
{
"type": "object",
"required": [
"profit",
"set_aside_percent"
],
"properties": {
"period": {
"enum": [
"month",
"quarter",
"year"
],
"type": "string",
"default": "month",
"description": "The period the profit is for. Default month."
},
"profit": {
"type": "number",
"minimum": 0,
"description": "Profit (income minus business expenses) for one period, in USD."
},
"set_aside_percent": {
"type": "number",
"minimum": 0,
"description": "Share of the profit to set aside, in percent, for example 30."
}
},
"additionalProperties": false
}Adds up one-time startup costs and monthly costs and works out cash left and months of runway (cash left divided by monthly costs, rounded down to 0.1, assuming no sales). Same formula as https://profitdrawer.com/tools/startup-cost-calculator.html. Optional preset with example amounts: Cleaning, Lawn care, Vending machine, Food truck, Any business; cost lists you pass replace the preset lines. Preset amounts are rough examples, not quotes.
| Argument | Type | Description |
|---|---|---|
| preset | string | Example cost lines from the website calculator. |
| monthly_costs | array | Monthly costs [{label, amount}] in USD. Replaces the preset monthly lines. |
| starting_cash | number | Starting cash in USD. Default 0. |
| one_time_costs | array | One-time costs [{label, amount}] in USD. Replaces the preset one-time lines. |
{
"type": "object",
"properties": {
"preset": {
"enum": [
"Cleaning",
"Lawn care",
"Vending machine",
"Food truck",
"Any business"
],
"type": "string",
"description": "Example cost lines from the website calculator."
},
"monthly_costs": {
"type": "array",
"items": {
"type": "object",
"required": [
"amount"
],
"properties": {
"label": {
"type": "string",
"maxLength": 60
},
"amount": {
"type": "number",
"minimum": 0,
"description": "USD"
}
}
},
"maxItems": 100,
"description": "Monthly costs [{label, amount}] in USD. Replaces the preset monthly lines."
},
"starting_cash": {
"type": "number",
"minimum": 0,
"description": "Starting cash in USD. Default 0."
},
"one_time_costs": {
"type": "array",
"items": {
"type": "object",
"required": [
"amount"
],
"properties": {
"label": {
"type": "string",
"maxLength": 60
},
"amount": {
"type": "number",
"minimum": 0,
"description": "USD"
}
}
},
"maxItems": 100,
"description": "One-time costs [{label, amount}] in USD. Replaces the preset one-time lines."
}
},
"additionalProperties": false
}Returns one answer published by ProfitDrawer by id: question, short answer, full detail, source with label, published and updated dates, answer page URL, Markdown URL, related questions, and the products and calculators the answer mentions. Ids come from search_profitdrawer.
| Argument | Type | Description |
|---|---|---|
| id* | integer | Answer id, as returned by search_profitdrawer. |
{
"type": "object",
"required": [
"id"
],
"properties": {
"id": {
"type": "integer",
"minimum": 1,
"description": "Answer id, as returned by search_profitdrawer."
}
},
"additionalProperties": false
}Returns public facts about ProfitDrawer: description, website, founding year with its source, area served, currency, support channels, social profiles and other facts, each with a source. Includes the About page URL.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}Lists the categories of ProfitDrawer's published answers with description, number of answers and category page URL.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}Lists ProfitDrawer products (spreadsheets, printables, templates, planners and printed goods) with name, price in USD, file formats, availability, product page URL and Etsy listing URL. Optional filters: words to match, collection, maximum price and file format.
| Argument | Type | Description |
|---|---|---|
| limit | integer | Maximum number of products (1-100). Default 25. |
| query | string | Words to match in the product name, type or collection, for example "cleaning bookkeeping". |
| format | string | File format to match, for example "Google Sheets", "Excel", "PDF", "PowerPoint". Matched as text, case-insensitive. |
| max_price | number | Only products at or below this price in USD. |
| collection | string | Collection: money = Money & Budget; business-templates = Business Templates & Kits; planners = Planners; kids = Kids & Family; bookkeeping-spreadsheets = Bookkeeping Spreadsheets; printed = Printed Goods. |
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"default": 25,
"maximum": 100,
"minimum": 1,
"description": "Maximum number of products (1-100). Default 25."
},
"query": {
"type": "string",
"maxLength": 200,
"description": "Words to match in the product name, type or collection, for example \"cleaning bookkeeping\"."
},
"format": {
"type": "string",
"maxLength": 60,
"description": "File format to match, for example \"Google Sheets\", \"Excel\", \"PDF\", \"PowerPoint\". Matched as text, case-insensitive."
},
"max_price": {
"type": "number",
"minimum": 0,
"description": "Only products at or below this price in USD."
},
"collection": {
"enum": [
"money",
"business-templates",
"planners",
"kids",
"bookkeeping-spreadsheets",
"printed"
],
"type": "string",
"description": "Collection: money = Money & Budget; business-templates = Business Templates & Kits; planners = Planners; kids = Kids & Family; bookkeeping-spreadsheets = Bookkeeping Spreadsheets; printed = Printed Goods."
}
},
"additionalProperties": false
}Returns rows from the datasets published by ProfitDrawer: irs-small-business-tax-deadlines-2027 (IRS small business tax deadlines 2027); irs-standard-mileage-rates (IRS standard mileage rates for business use, 2020 to 2026). Each row includes its IRS source URL and the date it was checked. Optional: filter by column values. Includes the dataset page URL and license.
| Argument | Type | Description |
|---|---|---|
| slug* | string | Dataset slug. |
| limit | integer | Maximum number of rows (1-200). Default 100. |
| filters | object | Column key to value. Text matches case-insensitively as a substring; numbers match exactly. Example: {"year": 2025}. |
{
"type": "object",
"required": [
"slug"
],
"properties": {
"slug": {
"enum": [
"irs-small-business-tax-deadlines-2027",
"irs-standard-mileage-rates"
],
"type": "string",
"description": "Dataset slug."
},
"limit": {
"type": "integer",
"default": 100,
"maximum": 200,
"minimum": 1,
"description": "Maximum number of rows (1-200). Default 100."
},
"filters": {
"type": "object",
"description": "Column key to value. Text matches case-insensitively as a substring; numbers match exactly. Example: {\"year\": 2025}.",
"additionalProperties": {
"type": [
"string",
"number"
]
}
}
},
"additionalProperties": false
}Searches the questions and answers published by ProfitDrawer on small business bookkeeping, taxes, pricing and money. Categories: Bookkeeping basics; Small business taxes; Start a business; Pricing and profit; Personal budgeting; Google Sheets and Excel how-tos; About ProfitDrawer files. Returns up to 10 matching answers, each with id, question, short answer, category, last-updated date and the URL of the answer page. Use get_answer with an id for the full text and source.
| Argument | Type | Description |
|---|---|---|
| limit | integer | Maximum number of answers (1-10). Default 5. |
| query* | string | Search words or a question. |
{
"type": "object",
"required": [
"query"
],
"properties": {
"limit": {
"type": "integer",
"default": 5,
"maximum": 10,
"minimum": 1,
"description": "Maximum number of answers (1-10). Default 5."
},
"query": {
"type": "string",
"maxLength": 500,
"minLength": 1,
"description": "Search words or a question."
}
},
"additionalProperties": false
}{
"type": "object",
"required": [
"hours",
"hourly_rate",
"profit_margin_percent"
],
"properties": {
"hours": {
"type": "number",
"minimum": 0,
"description": "Hours one job takes."
},
"travel": {
"type": "number",
"minimum": 0,
"description": "Travel cost per job in USD. Default 0."
},
"materials": {
"type": "number",
"minimum": 0,
"description": "Materials per job in USD. Default 0."
},
"hourly_rate": {
"type": "number",
"minimum": 0,
"description": "Your pay per hour in USD."
},
"jobs_per_month": {
"type": "number",
"minimum": 0,
"description": "Jobs expected per month; the overhead is shared across them. Default 0."
},
"monthly_overhead": {
"type": "number",
"minimum": 0,
"description": "Monthly overhead (insurance, phone, software, ...) in USD. Default 0."
},
"profit_margin_percent": {
"type": "number",
"minimum": 0,
"description": "Profit margin as a percent of the price, for example 20."
}
},
"additionalProperties": false
}