Investor guide
How to read the numbers
(and the Minnesota fine print)
The numbers that matter on a rental, explained in plain English — followed by the things that are specific to buying rentals in Minnesota, and the questions investors ask most.
The metrics
Six numbers the calculator shows — plus two to work out yourself
Net operating income (NOI)
Effective gross income − operating expenses
Everything the property earns after vacancy and every operating cost, before the mortgage. NOI is the number lenders and appraisers anchor on because it describes the property, not your financing.
Cap rate
Annual NOI ÷ purchase price
The unleveraged yield. Useful for comparing two properties head-to-head, because it ignores how each one is financed. A higher cap rate usually comes with more risk, more work, or a smaller market.
Cash flow
NOI − mortgage payment
What actually lands in (or leaves) your account each month. The calculator deducts a vacancy allowance and a maintenance budget before calling anything cash flow — because the roof does not care that you skipped the line item.
Cash-on-cash return
Annual cash flow ÷ total cash invested
Your first-year cash yield on the down payment and closing costs you put in. It ignores appreciation and principal paydown, which is exactly why it is a useful gut-check on a leveraged deal.
DSCR
Annual NOI ÷ annual debt service
Debt service coverage ratio. 1.00× means the property exactly covers its mortgage; many investor programs look for roughly 1.20–1.25× or better. Below 1.00× you are subsidizing the property from your own pocket.
Total return & CAGR
Appreciation + principal paydown + cash flow
Cash flow is only one of three ways a rental pays you. The hold-period analysis adds loan paydown and appreciation to get your total gain, then expresses it as return on investment and a compound annual growth rate (CAGR) over the years you own it.
Work it out yourself
Rent-to-price & GRM
Monthly rent ÷ price · Price ÷ annual rent
Screening shortcuts you can work out on the back of a listing — the calculator does not display them. The old “1% rule” (monthly rent at least 1% of price) is a rough screen, not an analysis, which is why the full expense model matters more than the rule of thumb.
Work it out yourself
Break-even occupancy
(Operating expenses + mortgage) ÷ gross income
The share of scheduled rent you must actually collect to cover every bill. Work it out from the income and expense breakdown in the report. Above 100% means the property loses money even fully rented at the rent you entered.
Minnesota specifics
What's different about buying rentals here
General information, not legal or tax advice. Rules vary by city and change — confirm the current version with the municipality, your CPA and your attorney.
Non-homestead property tax
An investment property you do not live in is classified non-homestead in Minnesota. It does not receive the homestead market-value exclusion and is taxed under a different class rate, so the effective tax rate is typically higher than the same house would carry as a primary residence. Pull the actual proposed tax from the county parcel record and enter the real number — do not assume the seller’s homestead bill carries over.
Rental licensing
Minneapolis, St. Paul, Duluth, Rochester and many suburbs require a rental license and periodic inspection for each rental dwelling. Budget the license fee and any inspection-driven repairs, and confirm the property can be licensed at all before you close.
Rent stabilization in St. Paul
St. Paul limits annual rent increases under its residential rent stabilization ordinance (with exemptions, including for newer construction, and a process for larger increases). If the property is in St. Paul, test the projection with lower rent growth. Minneapolis has no rent-control ordinance in effect as of this writing; check the city’s current status before relying on either.
Winter and the cost of deferred maintenance
Furnaces, roofs, ice dams, frozen lines and snow removal are real line items here. The default maintenance budget of 1% of value per year is generic; older Minneapolis and St. Paul housing stock often deserves more. Utilities paid by the owner on multi-unit buildings (common heat, water/sewer, trash) belong in the utilities line.
House-hacking a 2–4 unit
Live in one unit and rent the rest, and owner-occupied financing with a lower down payment may apply. The calculator models an investment purchase; for a house-hack, enter only the rent you will collect from the other units and ask Ben which programs may fit.
Short-term rentals
Many Minnesota cities regulate or license short-term rentals separately, and lenders underwrite them differently from long-term leases. This tool models long-term rental income with a vacancy allowance; it is not an STR calculator.
Before you write the offer
A six-line checklist
- Real rent, not Zestimate rent. Pull three comparable leases, or ask a local property manager what the unit rents for today.
- Real tax, not the seller's tax. Look up the parcel; model it as non-homestead.
- An insurance quote for a landlord policy on that address — not a guess.
- Reserves you'd actually keep. Lenders will usually want to see them after closing anyway.
- The DSCR line. If it's under 1.0×, the property is a bet on appreciation. Know that going in.
- My eyes on the PDF. Send me the report and I'll walk you through how a lender is likely to look at these numbers — call or text 651-800-5510.
Investor FAQ
Asked & answered
Using the calculator
Is this calculator really free, and do you collect my information?
Yes, and no. There are no forms, no email wall, no account, no cookies set by this site and no analytics. Every number you type stays in your browser, and the PDF report is generated on your own device. Nothing about your scenario leaves this site unless you choose to send the PDF to someone yourself.
Where do the default numbers come from?
They are a sample Twin Cities duplex scenario, chosen to be realistic rather than flattering: a sample non-homestead property-tax rate, a sample landlord insurance cost, a 5% vacancy allowance, 8% property management and a maintenance budget of 1% of value per year. Tax, insurance, maintenance and closing costs follow the purchase price until you type your own figure. The sample rate is not a quote. Replace every default with figures from the actual listing, county records, an insurance quote and local rent comps.
What does the PDF report include?
Page one is a snapshot of the deal: cap rate, ROI, cash-on-cash return, monthly cash flow, DSCR and your initial investment, with plain-English verdicts and the full purchase, financing, income and expense breakdown. Page two is the hold-period analysis: future value, projected cap rate, total equity, total gain, ROI and CAGR, where the return comes from, a total-return ledger and a cumulative total-return chart. After that comes the year-by-year cash flow table and the disclosures. Ben Musselman’s contact details are on every page, so you can forward it to him, your agent or a partner.
Can I save or share a scenario?
Download the PDF — that is the saved scenario. Because nothing is stored on a server, there is no account to log into and no scenario history; if you change a number, generate a fresh report.
The numbers
What is a good cash-on-cash return for a Minnesota rental?
Opinions vary, and the honest answer is “it depends what else you could do with the money.” There is no official benchmark. Some investors accept a lower cash-on-cash return on a property they expect to appreciate, and want a higher one for a heavy-rehab or harder-to-rent deal. A thin first-year cash return can still be part of a reasonable total return once principal paydown and appreciation are counted — and appreciation is never guaranteed — which is why the report shows total return, ROI and CAGR over your hold period, not just cash flow.
Why does the tool care so much about DSCR?
Debt service coverage ratio — net operating income divided by the annual mortgage payment — is the metric many investor loan programs are built on. A DSCR of 1.25× means the property earns 25% more than it owes the lender each year. Many investor programs look for roughly 1.20–1.25× or better; some DSCR loans may allow lower with a larger down payment or different pricing. If your DSCR is below 1.0×, the property does not pay for itself.
Why is my cash flow negative when the rent covers the mortgage?
Because the mortgage is not the only bill. Property tax, insurance, vacancy, maintenance and management can easily take a third to half of the rent on a Minnesota rental. The calculator deducts all of those before the mortgage. A property that “covers the mortgage” but not the reserves will look fine on paper and bleed the first time the furnace dies in January.
What’s the difference between cap rate and cash-on-cash?
Cap rate ignores financing: it is net operating income divided by purchase price, so it compares properties regardless of how they are bought. Cash-on-cash includes financing: it is annual cash flow after the mortgage divided by the cash you actually put in. Cap rate tells you about the property; cash-on-cash tells you about your deal.
Financing a Minnesota investment property
How much do I need to put down on an investment property?
More than on a home you will live in. Conventional investment-property loans commonly require 15–25% down depending on the number of units, and 2–4 unit properties sit at the higher end. Rates typically run higher than owner-occupied pricing, and lenders usually want cash reserves after closing. If you plan to live in one unit of a 2–4 unit property, owner-occupied programs with lower down payments may apply — ask Ben which ones could fit. Not everyone will qualify; all loans are subject to credit and property approval.
What is a DSCR loan?
A loan qualified primarily on the property’s rental income (its debt service coverage ratio) rather than your personal tax returns. It is popular with self-employed investors and people building a portfolio. Pricing and down-payment requirements differ from conventional loans, and not every borrower or property will qualify. Ben can look at the same scenario both ways.
Who is behind this calculator?
Ben Musselman, a Mortgage Loan Officer with Fairway Home Mortgage (Fairway Independent Mortgage Corporation), NMLS #1600154, working out of the Eden Prairie, Minnesota branch. He is individually licensed in Minnesota, Wisconsin, and Michigan. The calculator is on his site so investors can run the numbers privately before they talk to anyone. When you are ready, call or text him at 651-800-5510 or email [email protected] — and bring the PDF.
Does this site give tax or legal advice?
No. Depreciation, passive-loss rules, Minnesota non-homestead classification, rental licensing and local rent-stabilization ordinances all affect real returns and all change. This guide explains the concepts; a CPA and an attorney tell you how they apply to you.
Still wondering about something? Text me at 651-800-5510 — real questions get real answers.
Found a property? Let’s look at it together
Run the numbers, download the PDF and send it my way. I'll help you understand which financing options may fit — no cost and no obligation.