Move-Up Buyer Calculator
Selling to buy bigger? Calculate your net sale proceeds, see exactly how much equity rolls into your next home, and get your new monthly PITI in one place.
How to Use the Move-Up Buyer Calculator
In under two minutes you’ll have a complete picture of your net proceeds from the sale, exactly how much equity rolls into your next home, and your full new monthly PITI — all in one integrated analysis.
Enter Your Current Home’s Financials
Input your current home’s estimated sale price, your remaining mortgage payoff balance (from your last statement), your expected selling costs as a percentage — typically 6–8% for agent commissions, transfer taxes, and title fees — and any repair or staging costs you’ll spend before listing. The calculator immediately shows your estimated gross equity and the dollar cost of selling fees as you type.
Set Up Your New Home Purchase
Enter your new home’s purchase price and any additional cash savings you’re bringing beyond your sale proceeds. Then set your new mortgage’s interest rate — use the slider for quick exploration or type your exact quoted rate. The calculator applies your full net equity from the sale plus any extra cash as the down payment, shows your LTV instantly, and warns you if PMI is likely to apply.
Add Your New Home’s Monthly Costs
Enter the annual property tax for your new home (check the county assessor’s site or ask your agent), your annual homeowners insurance premium, any monthly HOA dues, and PMI if your LTV will exceed 80%. These costs are added to your principal and interest to produce your complete PITI — the true all-in monthly obligation, not just the mortgage payment alone.
Review the Full Analysis & Download Your Report
The results panel shows your net sale proceeds step-by-step, your new home’s funding breakdown with proportional bars, six key summary metrics, and two visual charts — a sale proceeds distribution donut and a stacked funding sources bar. Click Download Report to save a professional PDF showing every figure in a formatted layout you can share with your lender, financial advisor, or real estate agent.
What the Move-Up Buyer Calculator Shows You
Most mortgage calculators only model the new loan. This one handles both sides of the transaction — the sale and the purchase — so you see exactly where your equity goes and what your full financial position looks like after the move.
Net Sale Proceeds — Step by Step
A clear waterfall calculation showing your sale price minus mortgage payoff, agent and closing fees, and repair costs — line by line. The net proceeds figure is colour-coded green when positive and red when negative, so you know at a glance whether your sale generates usable equity or requires cash to close.
New Home Funding Breakdown
Proportional bar rows showing exactly how your new home is being funded — how much comes from your sale equity, how much from additional cash savings, and how much is financed via the new mortgage. The visual bars make the equity contribution versus leverage ratio immediately clear without doing any arithmetic yourself.
New Monthly PITI Payment
The hero metric: your complete new monthly housing cost including principal, interest, property tax escrow, homeowners insurance, HOA dues, and PMI. Not just the mortgage payment — the full obligation. This is the number your lender uses for debt-to-income qualification, and it’s the number you’ll actually write a check for every month.
Loan-to-Value (LTV) with PMI Alert
Your new home’s LTV is shown colour-coded: green at or below 80% (no PMI required), amber between 81–90%, and red above 90% (elevated risk tier). If your LTV exceeds 80% and you’ve entered $0 for PMI, the calculator estimates your likely PMI cost and flags it as a warning — so you never forget to include it in your budget.
Six Summary Metric Cards
At a glance: net proceeds from the sale, total down payment on the new home, new loan amount, LTV percentage, monthly P&I payment, and combined tax plus insurance plus HOA escrow. Each card uses colour-coded values so you can quickly assess which numbers are strong and which warrant attention before you make an offer.
Downloadable PDF Report
A professional PDF covering the complete sale proceeds analysis, new home funding table, full PITI breakdown, and the six summary metric cards — formatted for sharing with a lender for pre-approval, a financial advisor for budget planning, or a real estate agent for informed offer strategy. Saves directly to your device on click.
Move-Up Home Buying — by the Numbers
Three Move-Up Buyers Who Need This Calculator
Whether you’re upsizing for a growing family, relocating for work, or simply ready for a home that fits your life better, knowing your numbers before you list — or before you make an offer — changes every conversation with your lender and agent.
You’ve owned your current home for 8–12 years and have built substantial equity. You’re planning to move to a home 40–60% more expensive and expect your sale proceeds to cover most — or all — of the new down payment without needing extra cash. This calculator shows you exactly how your equity translates to a down payment, confirms your new LTV, and tells you whether you’ll clear the 20% threshold that eliminates PMI. Use it before you list to understand your maximum comfortable purchase price at different rate scenarios.
- Model your maximum purchase price by working backward from a PITI you’re comfortable with — adjust the new home price until the payment fits
- If your LTV is well below 80%, consider whether to put less down and keep more cash as post-move reserves
- Include 1–2% of the new home’s value in your first-year budget for immediate updates and move-in costs
Your employer is moving you to a new city and the housing market there is different — often more expensive — than where you are now. You need to sell quickly and buy in a market you may not know well, under time pressure. This calculator helps you model the financial bridge between the two transactions: what your current home will net after a fast sale (potentially at a slight discount), whether that equity covers a meaningful down payment in the new market, and what the new monthly payment looks like at local price levels. Run multiple scenarios before accepting a relocation package.
- Model a 2–3% reduction in your sale price to account for the speed premium of a fast sale — is the net proceeds still workable?
- Research property tax rates in your new city carefully — they vary enormously and can add $500–$1,000/month to PITI in high-tax states
- Ask your employer whether a home-sale assistance or temporary housing benefit is part of the relocation package — it changes your cash position significantly
You bought your current home three to five years ago and have moderate equity. The home you want to move to is meaningfully more expensive, rates are higher than when you originally bought, and your new PITI will be a significant jump from your current payment. You need to know whether the numbers work before you commit — not after. This calculator is most important for you. The combination of selling costs, modest equity, and a higher loan at a higher rate can produce a PITI that strains your DTI. Know your ceiling before you start shopping.
- Use the Additional Cash Down field to model how much extra savings you’d need to bring to hit 20% LTV and eliminate PMI — it’s often worth it
- Run the calculator at your current rate quote, then again at 0.5% higher — lock-in timing risk is real and a payment stress test is worth doing
- If the new PITI is above 36% of your gross monthly income, consult a lender about your DTI before making an offer — you may be closer to the limit than you think
7 Things Every Move-Up Buyer Should Know Before They List
The move-up transaction is more complex than a first purchase because two simultaneous financial events — a sale and a purchase — must be modelled together. These tips help you use the calculator accurately and avoid the most common planning mistakes.
Use Your Mortgage Payoff Balance — Not Your Original Loan Amount
The most common input error in move-up calculations is entering the original loan amount instead of the current payoff balance. These are different numbers: if you bought with a $320,000 mortgage six years ago, your payoff balance today might be around $285,000 — not $320,000. Use your most recent mortgage statement or call your servicer for a formal payoff quote (which includes a few days of interest). Entering the wrong figure will overstate your selling costs and understate your net proceeds by tens of thousands of dollars.
Get a Real Rate Quote Before You Model Your New Payment
Mortgage rates change daily and vary by loan type, credit score, down payment percentage, and property location. The national average you see on financial news sites is not necessarily the rate you’ll qualify for. Get a real quote from a lender — ideally two or three — before entering your rate in this calculator. Modelling at 6.5% when your actual quote is 7.25% understates your monthly PITI by several hundred dollars and can make a marginal purchase look comfortably affordable when it isn’t.
Include Repair and Staging Costs — They Reduce Your Net Proceeds Directly
Pre-sale preparation costs — fresh paint, landscaping, professional cleaning, minor repairs, and staging furniture — directly reduce your net proceeds dollar for dollar. A $4,000 staging investment on a $450,000 home might increase the sale price by $8,000, but the net proceeds impact is $4,000 less than you’d have without any repairs. Enter a realistic estimate in the Repairs & Prep field, not zero. Under-budgeting prep costs is a common reason move-up buyers arrive at closing with less equity than expected.
Check Property Taxes on the New Home Before You Model PITI
Property taxes on the new home are not the same as on your current home — and they’re often dramatically different even between nearby ZIP codes. A $650,000 home in a low-tax state might cost $4,500/year in property taxes ($375/month). The same price in a high-tax suburb could be $14,000/year ($1,167/month). That $792/month difference is enormous and will determine whether the move is affordable. Look up the property’s tax history on the county assessor’s website or ask your agent — don’t estimate using your current tax rate.
Model the PMI Cost If Your LTV Will Exceed 80%
If your down payment — equity plus additional cash — produces an LTV above 80%, conventional lenders will require Private Mortgage Insurance. PMI typically costs 0.5–1.0% of the loan amount annually, or $200–$400+ per month on a $500,000 loan. This calculator warns you when PMI is likely and estimates the cost, but you should enter the actual PMI figure in the PMI field once you have a lender quote. Never budget for a new PITI that excludes PMI when you know LTV will be above 80% — it will throw your affordability analysis off significantly.
Run the Calculator Before You List — Not After You Accept an Offer
The most valuable time to run this analysis is before your current home goes on the market, not after you’ve already accepted a purchase offer on the new home. Running it early tells you: the minimum price you need to sell your current home for in order to have a workable down payment on the new one; whether you need to bring additional cash savings; and whether the new PITI at your target purchase price is affordable given your income. This becomes your planning anchor for setting a realistic list price and a maximum offer price on the new home.
Keep at Least 3 Months of PITI in Reserve After Closing
Many move-up buyers spend every dollar of sale proceeds on the new down payment, arriving at their new home with no liquid reserves. This is financially fragile: the first few months in a new home commonly bring unexpected costs — appliance replacements, HVAC issues, landscaping — on top of moving expenses. Most lenders also look at post-closing reserves during underwriting. Plan to keep at minimum 3 months of your new PITI in a liquid account after closing. Use the Additional Cash Down field to model a smaller equity contribution that preserves this buffer, even if it means a slightly higher LTV.
Frequently Asked Questions
Everything you need to know about how this calculator models your sale-to-purchase transaction, how to interpret the key outputs, and how to use the results in your real move-up decision.
Important disclaimer: All figures produced by the HomeExpertly Move-Up Buyer Calculator are for educational and estimation purposes only and do not constitute financial, investment, legal, mortgage, or real estate advice. Results are based entirely on the inputs you provide and standard mathematical formulas — actual transaction outcomes will vary based on final negotiated sale price, lender-verified payoff amounts, actual closing costs, local transfer tax rates, lender-quoted mortgage rates and fees, property tax assessments, insurance premiums, HOA dues, and prevailing market conditions at the time of closing. This tool does not account for capital gains tax treatment on the sale of your current home, depreciation recapture, income tax implications, bridge loan or contingency scenarios, simultaneous closing requirements, or financing costs such as origination points and lender fees. Always consult a licensed real estate agent, licensed mortgage lender or broker, certified public accountant, and/or qualified financial advisor before making any real estate transaction decision. HomeExpertly is not a licensed lender, broker, real estate agent, investment advisor, or financial planner.