Bridge Loan Calculator
This bridge loan calculator shows the equity you can pull from your current home and what the bridge costs while both properties are held.
By Onias Derilus, Mortgage Capital · NMLS# 1859012 · Last Updated: June 2026
You carry both properties until the first sells — budget the existing mortgage, taxes and insurance alongside the bridge payment. Estimate only.
A bridge loan converts equity in the home you are selling into the down payment on the one you are buying, so you can make a non-contingent offer and move once.
It is short-term and interest-only, repaid when the first home sells. The cost is the price of not having to sell first, and it is worth modeling against what a contingent offer would cost you in negotiation.
These figures are estimates. For neutral, official guidance on mortgage costs and what lenders can charge, see the CFPB's Owning a Home guide.
How to Use This Calculator
- 1
Enter your current home value and mortgage balance, plus the combined loan-to-value your lender allows.
- 2
Enter the new home price and the down payment percentage you need.
- 3
Enter bridge rate, points and a realistic number of months until the current home closes.
- 4
Read the bridge amount and whether any cash shortfall remains.
The Formula & Assumptions
Usable equity =
(value × max CLTV%)
− balance
Bridge = lesser of usable
equity and down needed
Cost = (bridge × rate ÷ 12)
× months + points
Lenders cap the bridge against combined loan-to-value on the departing residence, commonly around 80%. If your equity does not cover the full down payment, the calculator shows the gap you must fund another way.
While both homes are held you carry two sets of taxes and insurance plus the bridge interest. In Florida that carrying cost is meaningful, especially where the departing home has a homestead exemption the new one will not have in year one.
The exit is the sale. If the market slows and the first home lingers, extension terms matter — ask what happens in month seven before you sign for six.
Frequently Asked Questions
How long does a bridge loan run?
Typically six to twelve months, sized to the expected sale. Most are interest-only with the balance due when the departing home closes, and many allow early payoff without penalty.
Can I avoid a bridge loan with a HELOC?
Sometimes, and it is often cheaper. The catch is timing: most lenders will not open a HELOC on a home already listed for sale, so the line has to be in place before you go to market.
Do I qualify carrying two mortgages?
Underwriting counts both payments unless the departing home is under contract, so debt-to-income is the usual constraint. Some bridge programs are more flexible on this than conventional financing.
What if my home does not sell in time?
You extend, usually for a fee, or refinance into longer-term financing. Ask about extension terms up front, and price the deal against a hold that runs a few months past your estimate.
Ready to Turn Your Estimate Into a Real Pre-Approval?
Get a personalized rate quote and pre-approval from a licensed Florida mortgage broker, no obligation.
Rates are illustrative only. APR and payments vary by credit score, loan amount, and market conditions. Subject to credit approval. Not a commitment to lend. NMLS# 1859012. Equal Housing Lender.
It estimates a short-term loan that covers the gap between buying a new home and selling the current one, usually interest-only until the sale closes.
Bridge Loan Calculator in Florida
Florida's seasonal market makes bridge timing unusually variable. A home listed in season can sell quickly, while the same home listed in late summer may take considerably longer. Insurance and inspection issues on an older roof are a common cause of a delayed closing, which extends the bridge and its cost.
How the Bridge Loan Calculator Works
The calculator works out the equity available from the departing home, sizes the bridge against it, and totals the interest across the months until the sale.
The Bridge Loan Formula, Explained
Available bridge = (current home value × lender LTV cap) − existing mortgage balance
Lenders size bridge loans on the equity in the home you are selling, commonly up to 70% to 80% of its value less what you still owe.
They are interest-only and repaid in full from the sale proceeds. The cost therefore depends almost entirely on how long the sale takes.
The Complete Bridge Loan Calculator Guide
A bridge loan buys you the ability to make a clean offer. In a competitive market an offer without a sale contingency is worth real money, sometimes more than the loan costs.
The risk is the sale taking longer than planned. You are carrying two properties, and every extra month adds interest on the bridge and a payment on the departing home.
Price the downside before you commit. Model the bridge at twice the months you expect, and check that the combined carry is affordable if the sale slips past season.
Bridge Loan Calculator FAQ
How long do bridge loans run?
Commonly six to twelve months, repaid when the departing home sells. Extensions are often possible and usually cost additional fees.
Do I make payments on both homes?
Usually yes. The bridge is typically interest-only, but the existing mortgage on the departing home continues until it sells.