Never Overpay Again
Know Your Maximum Offer Before You Negotiate
Stop guessing what to offer. Our calculator reverse-engineers the highest price you can pay while meeting your Cap Rate, Cash-on-Cash, ROI, or Cash Flow targets.
Your targets, the offer they justify, the cash flow behind it
Example uses public listing data for illustration. See disclaimer.
Know exactly what you can offer before you make a bid. Never overpay for a rental property again.
Remy
Your AI real estate agent
Your AI Agent
Ask Remy for Your Max Offer
Tell Remy the return you need and it runs Your Max Offer for the address — the highest price that still hits your target, which metric binds, and how far that sits from the list price — saved to your list with the numbers behind it.
What's the most I can pay for 4210 W Grace St and still hit 8% cash-on-cash?
Your ceiling is about $351,000. At that price you're right on 8.0% cash-on-cash with roughly $250/mo cash flow and a 6.1% cap rate; cash-on-cash is the binding target. That's $9,000 over the $342,000 estimate, so anything under the estimate beats your number. It's saved on Your Max Offer — offer with the figure in hand, not a guess.
Max offer calculation: 4210 W Grace St, Tampa, FL 33607
4210 W Grace St, Tampa, FL 33607
- listPrice
- $342,000
- maxOfferPrice
- $351,000
- limitingMetric
- cashOnCash
- priceDifference
- $9,000
rent
- estimate
- $2,650
- original
- $2,650
targets
- cashOnCash
- 8.0%
- capRate
- 5.0%
- monthlyCashFlow
- 100
metricsAtMaxOffer
- capRate
- 6.1%
- cashOnCash
- 8.0%
- roi
- 11.2%
- monthlyCashFlow
- 250
How It Works
Get your maximum offer price in 4 simple steps
Enter Property Details
Input address, bedrooms, bathrooms, and square footage
Set Investment Targets
Choose Cap Rate, Cash-on-Cash, ROI, or Cash Flow goals
Configure Financing
Enter down payment, interest rate, and expenses
Get Your Max Offer
See the highest price that meets all your targets
Try the MAO Calculator Today
Calculate the maximum price you can offer while meeting your investment targets
Unlock the MAO Calculator
Start your free 7-day trial to access the MAO Calculator and every other analysis tool
Start Free TrialStart From the Return You Need, Not the Price They Ask
Most investors start at the asking price and hope the numbers work. The MAO calculator works backwards: you set the returns you require, and it solves for the highest price that still delivers them.
Your Ceiling, Justified
The Highest Price That Still Hits Your Targets
Walk into a negotiation knowing your ceiling and why it's your ceiling. Here the calculator caps the offer at $277,964 — $72,036 under the $350,000 ask — because the cash-on-cash target binds first. When the agent asks “where did that number come from?”, you have the answer.
- One number to negotiate from — your maximum allowable offer
- See exactly which return target limits the price
- How far below asking your ceiling sits, in dollars and percent
- Cash flow, cap rate and returns at that price, right beside it
Your Targets
Set the Returns You Refuse to Miss
Discipline is a number you pick before you fall in love with a house. Tell the calculator what the deal must return, and every listing gets the same cold arithmetic — no exceptions for pretty kitchens.
- Target cap rate, cash-on-cash, ROI and monthly cash flow — hit all of them
- Your financing and operating assumptions ride along
- The rent estimate comes from real comparable rentals
- Change a target and the ceiling moves with it
Proof at the Price
See the Deal Work at Your Offer
The offer isn't a guess — the full underwrite at that price is attached. Cash flow, projections, loan and equity, comparables and an AI read all live in tabs behind the summary, so the number and its evidence travel together.
- Cash flow at the maximum offer, line by line
- Rent from nearby comparables, with its range and confidence
- Every expense visible and editable
- Projections, loan amortization and property facts one tab away
The Rest of the Underwrite, One Tab Away
Everything you'd want to check before writing the offer is already attached to it.
Multi-Year Projections
Check That Your Ceiling Still Works in Year Ten
Your maximum offer is solved on year-one targets, but you don't own a property for one year. This is where you find out whether the price that clears your bar today is still the right price after the rent has risen and the loan has paid down — or whether it only ever worked on paper.
- Rent, expenses, cash flow and equity projected at your offer price — not at what they asked
- Rent growth, expense inflation, appreciation and selling costs are yours to set
- Total return across the hold, so the offer is judged on more than year one
- Change a target, watch the ceiling move, and see the whole hold move with it
Loan & Equity
Watch the Loan Amortize at the Price You'd Actually Pay
A lower offer is not just a better price; it is a smaller loan, a smaller payment and a faster path to equity. Seeing the amortization at your ceiling rather than at the asking price is what turns “I offered less” into a number you can point at.
- Amortization on the loan your maximum offer produces, not a generic example
- Interest against principal across the full term, month by month
- Equity growth split between what you paid down and what the market added
- The balance at any year — where a refinance or a sale would start from
Rental Comparables
Your Offer Is Only as Good as the Rent Behind It
The whole calculation runs backwards from the rent, so a rent that is $150 optimistic is a ceiling that is thousands too high — and you would never know from the summary. Here you can see the listings the number came from and correct them when you know the block better than the model does.
- Every nearby rental the estimate was built from, closest matches first
- Rent, size, distance and similarity for each comp, so you can judge the evidence
- Exclude one that isn't really comparable and the maximum offer re-solves
- A confidence range that tells you how much weight the rent can carry
Property Info & Assumptions
Every Assumption the Ceiling Was Built On, in One Place
An offer you cannot defend is an offer you will talk yourself out of. When the agent pushes back, this is the tab that shows the ceiling was not a hunch — it came from these facts, these terms and these targets, and any one of them can be checked in front of them.
- Beds, baths, square footage, year built and taxes straight from the property record
- The financing terms, closing costs and operating assumptions the solve actually used
- Nothing hidden behind the number — audit the inputs before you send the offer
- Spot a wrong assumption, fix it, and the maximum offer updates with it
AI Negotiation Insights & Strategy
Get AI-generated negotiation talking points, risk analysis, and strategic recommendations to help you negotiate with confidence and close deals.
Ask Remy about this deal
Your AI real estate agent
Remy has this deal's figures in front of him. Start with a question — or ask your own.
Ask Remy
A Second Opinion Before You Sign the Offer
Even a disciplined ceiling deserves a sanity check. Remy reviews the deal at your offer price the way a seasoned investor would — what's strong, what's thin, and whether the strategy fits — before any money moves.
- Ask Remy for a read on the deal at your maximum offer — which target binds and how far below list it sits
- Strengths and concerns spelled out in plain language
- The negotiation stance that follows: opening number, where to stop, what to ask for instead of price
- Keep asking as you change the price, the rent or the financing
Negotiation Talking Points
Get specific phrases and arguments to use when negotiating with sellers or agents.
Risk Factor Analysis
Identify potential risks and get AI-suggested mitigation strategies for each concern.
Market Context
Understand how local market conditions affect your negotiating position and offer strategy.
Recommended Next Steps
Get a prioritized action plan with specific steps to move forward on the deal.
7-day free trial - Cancel anytime
Bring Your Number — and Its Proof — to the Table
An offer defended by a report gets taken seriously. Share the live analysis or print it; either way the justification travels with the price.
Every page of the report: the cover, the Offer Price Justification with each target's max price, rental income analysis, financing and investment, and the comparable rentals behind the rent.
Click any page to enlarge it.
Write the Offer
Your Ceiling, Written as the Offer
Knowing your ceiling is half the job. Smart Rental Investor turns it into the offer itself, signed with your details and written under the terms you set once, so the number leaves the page the same evening it was calculated.
- The message quotes your maximum allowable offer, so the number you send is the one your targets allow
- Financing, earnest money, inspection, contingencies and closing go out as plain sentences, not a form
- Send it to the listing agent or the seller, copied to a text or opened as an email draft
- Offer less than the ceiling for room to negotiate: change the price and the message rewrites itself
Nothing Assumed
Your Terms Are Asked, Never Guessed
A wrong term sent by mistake costs a deal; a minute filling in a form does not. So the first offer of each kind asks what you actually offer, and nothing you did not type ever reaches a seller or an agent.
- Every field starts blank; the typical value sits beside it as a hint, not a default that slips out unread
- Fill in what you offer and leave out what you do not - a blank field never becomes a sentence
- The form changes with the deal: a wholesaler is asked about assignability, a rental buyer about financing contingencies
- Tick one box and these become your defaults for every offer of that type
Send It Your Way
Copy It, Text It, or Open Your Mail App
The offer leaves on whatever channel the other side answers. There is no outbound mail from Smart Rental Investor, nothing tracked inside your message, and no third party between you and the agent.
- Copy message puts the whole offer on your clipboard for a text, a portal form or a CRM note
- Open in email starts a draft in your own mail app with the subject and the message filled in
- When the listing names its agent, the draft is addressed to them, with no address to look up
- Nothing is sent by Smart Rental Investor: you read it, adjust it and press send from your own account
Listing agent
Today 9:41 AM
Read 9:43 AM
Illustration. The message is what Smart Rental Investor writes; the reply is an example.
Or Send It as a Text
The Same Offer, Sent as a Text
Plenty of agents and sellers never open email but answer a text in minutes. The offer Smart Rental Investor writes is plain text on purpose, so one tap on Copy message and one paste puts it in a thread, terms and all, from your own phone number.
- Copy message puts the whole offer on your clipboard, formatted to read on a phone
- Paste it into Messages, WhatsApp, or whatever the other side actually answers
- The same message, price and terms the email carries, so nothing changes between channels
- Save it to My Offers first and the text you sent is on record for the follow-up
Your Terms, Once
Set Your Terms Once, Then Every Offer Writes Itself
Most investors retype the same earnest money, inspection period and closing terms into every offer, and forget one when it matters. Smart Rental Investor asks for your terms once, on your first offer of each type, and writes every offer after that from them, so what changes deal to deal is the price and the address, not the paperwork. See how the Offer Writer works.
- Save your terms per deal type: rental, fix & flip and BRRRR, wholesale seller and end buyer
- The next offer of that type is written the moment the dialog opens, ready to copy or send
- Change a term for one property without touching your defaults, or update the defaults when your strategy changes
- Nothing is assumed: a term you leave blank never appears in the message
- Every offer you write is filed under My Offers with the terms it went out under
Why Not Just Guess?
Stop leaving money on the table or overpaying for properties.
Guessing Your Offer
- Offer too high - destroy your returns
- Offer too low - lose the deal
- No data to back up your price
- Anxiety about whether it'll cash flow
- Hours of spreadsheet work
Your Max Offer
- Exact max price that hits your targets
- Rental estimates from real comps
- PDF reports to justify your offer
- Confidence knowing you won't overpay
- Results in under 30 seconds
Perfect For Every Strategy
Buy & Hold
Target cash flow & Cap Rate, then validate with 30-year projections & IRR per exit year
BRRRR
Factor rehab & refinance. Try the full BRRRR Refi Planner
Wholesalers
Know investor max offers. See the wholesale guide
Simple, Transparent Pricing
Full access for 7 days free, then continue if you love it
30-day money-back guarantee
Not happy after the trial? Contact us within 30 days of your first payment and we refund it in full. First-time subscribers; renewal payments don't apply. Terms
Full Access
Everything you need to make smart offers
One payment of $155.88/year
Plus every other tool in the platform — see all 18 features
$0 today. Free for 7 days, then $155.88/year. Cancel before the trial ends — no charge. Also available at $19.99/month.
Why a Maximum Allowable Offer Matters Before You Negotiate
Most rental property offers start from the wrong end: the asking price, minus whatever discount feels bold. The seller's number has nothing to do with what the property is worth to you as an investment. A maximum allowable offer (MAO) starts from the return you need — an 8% cash-on-cash, a 7% cap rate, $200 a month of cash flow — and works backwards through the rent, the expenses and your financing to the highest price that still delivers it. Above that price the deal fails your own test, no matter how the negotiation goes.
A MAO calculator makes that ceiling explicit before you pick up the phone. The rent estimate comes from comparable rentals near the address; taxes, insurance, vacancy, repairs, capex and management are budgeted at the rates you set; your loan terms are applied; and the calculator reverse-engineers the purchase price for every target you choose, then shows which one binds. You walk into the negotiation knowing your walk-away number to the dollar, why it is that number, and how far below asking it sits — which is the difference between negotiating and hoping.
What Is a Maximum Allowable Offer?
The maximum allowable offer is the highest purchase price at which a property still meets your minimum investment criteria. For a rental, that means the price where the estimated rent, less operating expenses and debt service at your financing terms, still produces your target cash-on-cash return, cap rate, ROI or monthly cash flow. It is a ceiling, not an opening bid — you negotiate below it, never above it.
Why Do Different Targets Give Different Offers?
Each return metric measures something different. Cap rate ignores financing, so it is sensitive to NOI and price; cash-on-cash depends on your down payment and loan; monthly cash flow is a dollar floor. Solve for all four and you get four different prices. The calculator shows every one and flags the most conservative as the limit — that is your real MAO, because breaching it fails at least one of your own rules.
How Does the Rent Estimate Drive the Offer?
Rent is the top line of the whole calculation; overstate it by $200 a month and your MAO can move by tens of thousands of dollars. Using a rent estimate anchored to nearby comparable rentals, with its range shown, keeps the offer honest. Edit the rent to a conservative figure and watch the maximum offer recalculate — that is the number you should be negotiating from.
How Do You Use the MAO in a Negotiation?
Open below it, hold your walk-away price at it, and let the gap between MAO and asking price tell you how realistic the deal is. A 4% gap is a negotiation; a 40% gap is a pass unless the seller is motivated. Ask Remy and he turns the numbers into a strategy — opening offer, walk-away price, talking points, risks and next steps — built from the market context of that specific property.
Frequently Asked Questions
Ready to Make Smarter Offers?
Stop overpaying for investment properties. Calculate your maximum allowable offer with confidence.
Start Your Free 7-Day TrialCancel anytime during trial - no charge
Keep going with the next tool
Every tool works on the same address and the same numbers — and Remy can run any of them for you.
- 7-day free trial
- Cancel anytime
- 30-day money-back guarantee