How to Keep Your Current Home as a Rental When You Upgrade

If you want a bigger or better-located home but cannot stomach trading a 3% mortgage for a 7% one, you do not have to sell. Keeping your current home as a rental while you buy the next one is a legitimate, lender-approved path, and in Central Florida it often beats selling on a ten-year view.

It is not free money, though. The strategy works when you qualify for the second mortgage honestly, understand how Florida property taxes change once you move out, and budget for vacancy, repairs and insurance. Here is how to run the numbers and the steps, in order.

Why your low rate is worth keeping

The average 30-year fixed rate was 7.40% as of October 15, 2026, up from 6.27% a year earlier (Freddie Mac). Yet 50.6% of all outstanding U.S. mortgages still carry a rate below 4%, and 19.7% are below 3%, according to FHFA National Mortgage Database figures for the fourth quarter of 2025 (Wolf Street, FHFA data). If you bought or refinanced between 2020 and early 2022, you are likely in that group.

The gap is large in dollars. A $300,000 loan at 3.25% costs about $1,306 a month in principal and interest. The same loan at 7.40% costs about $2,077. That $771 monthly difference is the margin a tenant helps you keep. When you sell, that financing disappears; when you rent, it becomes the foundation of a cash-flowing asset while the tenant pays down your balance.

How lenders count your future rent

You will need to qualify for the new mortgage with both payments in the picture. The good news is that Fannie Mae's guidelines, updated in September 2026, specifically allow rental income from a "primary residence that will be vacated and converted to an investment property." The lender uses 75% of the documented market rent, subtracts your current home's full payment (principal, interest, taxes, insurance and association dues), and applies any positive result to offset that payment (Fannie Mae Selling Guide B3-3.8-05).

Two details catch people by surprise. A signed lease is not accepted as proof of rent for a departing residence; the lender needs an appraisal with market rents, a Form 1007 comparable rent schedule, or a market analysis with at least three comparable rentals. And if you have less than 12 months of experience managing rental property, expect to show six months of reserves on top of the usual requirements. Our team at Don Harkins Mortgage structures these files regularly and can tell you early whether the numbers work.

Where the down payment comes from

Most people assume they must sell to fund the next purchase. A home equity line of credit lets you draw on your equity while leaving the first mortgage untouched. The national average HELOC rate was 7.084% APR on October 6, 2026 (MonitorBankRates), which is higher than your old rate but applies only to the amount you draw, not your whole balance.

The HELOC payment counts against you in qualifying and against the rental's cash flow, so size it carefully. Many of our clients draw just enough for a 10% to 20% down payment on the new home and keep the rest of the line as a reserve for the rental.

Key point: The lender counts 75% of market rent, not the full amount, and will not accept a lease as proof. Get a rent schedule from an appraiser or three solid comps before you shop for the next house, so you know your real qualifying number.

What changes in Florida when you move out

Property taxes. Your homestead exemption and the Save Our Homes cap end when the home is no longer your permanent residence. The assessed value resets toward market value, then grows under the 10% non-homestead cap, which does not apply to school taxes (Palm Beach County Property Appraiser, assessment caps). If you have owned since 2019 or earlier, the jump can be several thousand dollars a year. Ask your county property appraiser for an estimate, and remember you can port your Save Our Homes benefit to the new homestead.

Insurance. A standard homeowner's policy does not cover a tenant-occupied home. You will need a landlord (dwelling fire, often called DP-3) policy, and tenants should carry their own renter's insurance. Get the quote before you commit; Florida premiums vary widely by roof age and location.

Capital gains. The IRS lets you exclude up to $250,000 of gain ($500,000 if married filing jointly) on a home you owned and lived in for two of the five years before the sale (IRS Topic 701). Rent the home for more than three years and that exclusion can lapse. Talk to your CPA about the timeline, and about depreciation, which is a real benefit while you hold.

Does it actually pencil in Central Florida?

Rents support the strategy in most price bands. Orlando apartment rents have gone flat over the past year because of new supply, but single-family homes in good school zones still command a premium over apartments, and Space Coast rents are rising at a healthier clip on the strength of aerospace hiring. Our Epic Universe and rents article has the current numbers for both markets.

Consider an illustrative Orlando case: a home now worth $400,000, bought in 2020 for $300,000, with a $240,000 balance at 3.25% and about $7,500 a year in taxes, insurance and HOA dues, rented at $2,400 a month. Run through the Sea Dog Rent vs. Sell calculator with 3% appreciation, 10% management and a 95% occupancy assumption, that owner shows a small negative cash flow of roughly $5,300 in year one that shrinks each year, and ends ten years later with about $33,000 more wealth than if they had sold today and invested the proceeds at 6%. That is a modest edge, not a windfall, and it depends entirely on your rate, your rent and your discipline about reserves. Change the rent to $2,100 or the rate to 5% and the answer can flip.

Sea Dog's full-service plans run from 8% a month with a 90% leasing fee to 10% a month with a 70% leasing fee and added protections (Sea Dog Property Management pricing). The right plan depends on how hands-on you want to be.

What this means in Orlando and on the Space Coast

Orlando owners should know that the metro's median home price was $400,676 in August 2026, essentially flat from a year earlier, with 4.9 months of supply and 64 average days on market (Orlando Regional Realtor Association). In a flat-price, higher-inventory market, selling into the crowd rarely captures a premium, which strengthens the case for holding a low-rate home and letting rent and amortization do the work.

Brevard owners have a tighter seller's market, with single-family supply well under four months and homes going under contract faster than a year ago, so selling is a reasonable option too. The tiebreaker there is usually insurance: if your current home has a newer roof and a manageable premium, it is a strong rental candidate. If you are weighing both paths, why waiting to sell in Central Florida rarely pays covers the sell-now side of the argument.

Next step

Bring us your current rate, balance and a rough idea of the next home you want, and we will run the qualifying math, a realistic rent estimate and the keep-versus-sell projection together in one sitting. If the numbers favor keeping, Sea Dog Property Management can take the home from vacant to leased while our buyer team finds your next one. If they favor selling, our sellers page explains how we get homes sold in an average of 16 days.