Rental property investment calculator from your numbers
Rental property investment calculator from your numbers: monthly mortgage payment (amortising), net operating income, cap rate, gross rental yield, monthly and annual cash flow, cash-on-cash return, debt service coverage ratio (DSCR), break-even occupancy and the 1% rule check. Any currency. Standard formulas; it does not look up prices or rents.
Answeringour last check, 2026-10-24
1 of 1checks answered this week
857 msmedian answer time
$0.002listed price per call
$0.002price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://api.jobsproperty-api.workers.dev/api/realestate/real-estate-investor-toolkit
| Category | Market data |
|---|---|
| Provider host | api.jobsproperty-api.workers.dev |
| Networks | eip155:10, eip155:137, eip155:143, eip155:42161, eip155:42220, eip155:480, eip155:5042, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, stellar:pubnet, xrpl:0 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-24 | valid payment request | 402 | $0.002 | 857 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"closingCosts": "6000",
"downPaymentPct": "25",
"expensesMonthly": "450",
"price": "300000",
"ratePct": "6.5",
"rentMonthly": "2200",
"vacancyPct": "5",
"years": "30"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"closingCosts": {
"description": "One-off purchase costs added to cash invested (default 0)",
"type": "string"
},
"downPaymentPct": {
"description": "Down payment % of price (default 20)",
"type": "string"
},
"expensesMonthly": {
"description": "Monthly operating costs: tax, insurance, maintenance, management, HOA (default 0)",
"type": "string"
},
"price": {
"description": "Purchase price (required)",
"type": "string"
},
"ratePct": {
"description": "Annual mortgage interest rate % (default 6.5)",
"type": "string"
},
"rentMonthly": {
"description": "Expected monthly rent (required)",
"type": "string"
},
"vacancyPct": {
"description": "Vacancy allowance % of rent (default 5)",
"type": "string"
},
"years": {
"description": "Loan term in years (default 30)",
"type": "string"
}
},
"required": [
"price",
"rentMonthly"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}