Smaller vs Larger Down Payment on a Conventional Loan for a Condo

The Quick Read: A smaller down payment suits a buyer who wants to keep cash for reserves, closing costs, and HOA surprises and who accepts mortgage insurance. A larger down payment suits a buyer who values a smaller loan and no mortgage insurance and still has a cushion left after closing. Neither choice decides whether the building gets approved. Down payment size sets the loan-to-value ratio, while the condo project is judged on its own finances and legal health.

The Old “10% Down” Shortcut Is Gone

Final terms depend on lender guidelines, property type, leverage, and the borrower’s complete credit picture.

Terms depend on the lender’s guidelines, the property type, the leverage, and a full review of the credit profile.

Many condo guides still say that putting 10% down earns you a lighter review of the building. That advice is out of date. Fannie Mae’s project standards FAQ states that loans with application dates on or after August 3, 2026 are not eligible for sale to Fannie Mae under the Limited Review process.

For a new application, then, the down payment no longer picks the review path. The building does. A big down payment cannot rescue a project with weak reserves, heavy delinquent dues, or a litigation problem. A small one will not trigger extra scrutiny of a healthy building.

What the down payment still controls is leverage: how much you borrow against the value. Leverage drives mortgage insurance, cash to close, and how much room a low appraisal leaves you.

Side-by-Side

Figures are program ceilings across the wholesale conventional programs Lendmire works with, subject to lender guidelines and full file review. They are not a commitment to lend.

The Leverage Menu, in Plain Terms

On a one-unit principal residence purchase, the conventional ceiling is 97% LTV (3% down) at a fixed rate when at least one borrower is a first-time buyer, meaning no ownership interest in a residence in the previous three years. Otherwise the ceiling is 95% (5% down). Fannie Mae’s Eligibility Matrix also notes that lower LTV limits may apply to condos, depending on the project review the lender performs. That is a ceiling, not a target. Across the wholesale programs we place files with, most established condos in good standing do fine near those limits. Final terms depend on the lender’s guidelines, the property type, and the borrower’s complete credit picture.

If you are weighing a second home or rental instead of a primary residence, occupancy sets the leverage, and the caps are lower. This article assumes you will live in the unit.

When a Smaller Down Payment Is the Better Fit

A smaller down payment works best for the buyer whose real risk is running out of cash, not paying a bit more each month.

Condo ownership adds cash needs that a house does not always have. HOA dues are a monthly cost that stays the same whether you put down 3% or 30%. Special assessments can arrive with little warning. Fannie Mae itself treats special assessments as a project-review issue, which tells you how seriously the agencies take them. Each figure is subject to lender guidelines and a complete review of property type, leverage, and credit.

A smaller down payment makes sense if:

• Reserves would be thin after a big check. Draining savings to avoid insurance trades a known monthly cost for an unknown emergency exposure.
• You expect a quick equity build. Paydown and appreciation can bring you to the cancellation point on mortgage insurance.
• Other debts compete for cash. Paying off a high-cost balance may do more for your budget than extra equity in the condo.
• Your first-time-buyer status unlocks the top leverage tier. That 97% option exists for a reason.

The tradeoff is real, though. You borrow more, carry mortgage insurance, and have less cushion if values slip. Insurance is required above 80% LTV. Published typical annual premiums run from 0.58% to 1.86% of the balance, which is a range and not a quote. Your actual cost depends on score, leverage, and loan type. Leverage, reserves, and pricing vary by lender and program; the final terms follow the full file review.

Mortgage insurance is not permanent on a conventional loan. You may request cancellation at 80% of the original value, if payments are current, there are no subordinate liens, and the value has not fallen. The servicer must terminate it automatically at 78%. The CFPB spells out those conditions. Note the gap: at 80% you must ask, and only 78% is automatic. A second mortgage or home-equity line can block the request.

When a Larger Down Payment Is the Better Fit

A larger down payment fits the buyer with a solid cushion who wants the lowest ongoing obligation and the fewest moving parts.

At 20% down, which is 80% LTV, mortgage insurance is not required. Fannie Mae’s Selling Guide ties the requirement to LTV above 80%. A smaller loan also means less interest paid over the life of the loan, a point the CFPB’s archived down payment guidance makes in plain terms. Terms vary by lender guidelines, property type, leverage, credit profile, and full file review.

Put more down if:

• You already hold a full emergency fund and closing-cost money. The extra equity then costs you nothing in safety.
• The condo is a stretch for the appraisal. A lower starting LTV absorbs a modest appraisal shortfall without forcing you to renegotiate or bring more cash.
• Your debt ratios are tight. A smaller loan can help your debt-to-income picture. Confirm the specifics with your loan officer.
• You plan to stay many years. The longer you hold, the more total interest a smaller balance saves.

The tradeoff is liquidity. Home equity is hard to reach without a refinance or a loan. If a job loss or an assessment hits after you have spent every spare dollar on the down payment, that equity does not pay a bill.

What a Bigger Down Payment Cannot Fix

This is where many condo buyers get surprised. Putting more money down does not change these things:

1. The building’s eligibility. A project that fails review, or is marked unavailable in Fannie Mae’s project tool, can block the loan no matter how much you put down.

2. Transient or hotel-style projects. The Fannie Mae FAQ above says a project that is primarily transient is ineligible.

3. Your credit and income. The wholesale programs start at a 620 decision score, and the automated finding governs most files.

4. HOA dues. They count toward your monthly housing expense and do not shrink with a larger down payment.

Some transactions skip project review entirely. Fannie Mae’s waiver rules cover detached condo units and certain refinances. If you are buying an attached unit in a conventional building, plan on a full look at the HOA’s budget, reserves, delinquencies, insurance, and litigation. Stricter reserve expectations are phasing in as well, so older buildings with thin reserves deserve extra questions.

A Practical Way to Decide

Run the choice in this order:

1. Set your reserve floor first. Decide how many months of expenses must remain after closing, then count HOA dues in those expenses. That number is untouchable.

2. Subtract closing costs. Whatever is left is the true pool for a down payment.

3. Check the 80% line. If you can reach 80% LTV and still keep your reserve, you skip insurance. If reaching it would break the reserve, the smaller option is safer. These specifics are subject to lender guidelines and a full review of property, leverage, and credit.

4. Test the middle. A down payment between the minimum and 20% still cuts the loan and may lower the insurance tier. It does not have to be all or nothing.

5. Ask for the building’s documents early. Budget, questionnaire, and insurance certificates take time to gather and can sink a deal on their own. Exact terms depend on the lender’s guidelines, property type, leverage, and a full review of the borrower’s file.

These are tendencies, not rules.

Honest Verdict

Neither option wins on its own. The smaller down payment buys flexibility and costs you monthly insurance and a thinner equity cushion. The larger one buys a lighter loan and no insurance and costs you liquidity. For a condo, the deciding variable is often cash after closing, because dues and assessments keep arriving regardless of your equity.

If keeping the larger down payment would leave you without a real reserve, the smaller one is usually the safer structure. If you have the reserve and can reach 80% LTV, the larger one tends to lower your total cost. Lendmire’s piece on minimum versus larger down payments works through the same tradeoff for any property type, and Lendmire’s conventional loan programs page lays out the program menu that frames the choice.

Key Terms Defined

Loan-to-value (LTV): The loan amount divided by the lesser of the price or appraised value on a purchase.

Mortgage insurance: Coverage that protects the lender when LTV is above 80%, paid by the borrower.

Project review: The lender’s check of the condo building’s finances, insurance, and legal status.

HOA dues: The recurring fee for shared building costs, separate from your loan payment.

Special assessment: A one-time charge to owners for a major repair or shortfall.

If you are buying a home and want to see whether a conventional loan fits your file, Lendmire can help you compare the options and what each one asks of the file.

For your own numbers, request a scenario review with Lendmire.

About Lendmire

Lendmire (NMLS# 2371349) is a mortgage brokerage serving homeowners and home buyers in 16 states. FHA, VA, conventional and jumbo purchase and refinance loans are arranged through wholesale lending channels; Lendmire brokers the financing and the lender underwrites each application. Scotsman Guide named Lendmire a Top Mortgage Workplace in both 2025 and 2026.

References

1. Fannie Mae Project Standards FAQ

2. Fannie Mae Eligibility Matrix

3. CFPB

4. Fannie Mae Selling Guide B7-1-01, Provision of Mortgage Insurance

5. CFPB archive: How to decide how much to spend on your down payment

6. Fannie Mae Selling Guide B4-2.1-02, Waiver of Project Review