The hard part of buying a home is rarely finding a number for the down payment. It is deciding where that number should come from without creating a new problem somewhere else. The best down payment funding options depend on more than your savings balance. They depend on the home’s total monthly cost, your job stability, upcoming family plans, debt, retirement progress, and how much cash you need to feel secure after closing.
A 20% down payment can be sensible. So can 10%, 5%, or less in the right situation. The question is not, “What is the biggest down payment we can scrape together?” It is, “What choice lets us buy this house while keeping the rest of our plan intact?”
Start with the full cash requirement
Your down payment is only one check you will write. Closing costs, prepaid property taxes and insurance, moving expenses, immediate repairs, and basic furnishings can add meaningfully to the amount needed before move-in. The exact figure varies by location, loan type, and timing, but treating the down payment as the whole cash need is a common and expensive mistake.
Then there is the reserve question. If buying the house reduces your checking and savings accounts close to zero, a repair, medical bill, or job change can turn a manageable mortgage into a stressful one. A healthy post-closing cash reserve is not wasted money. It is what keeps you from putting the next surprise on a credit card or selling investments at the wrong time.
Before choosing a funding source, separate your money into three buckets: cash required to close, cash reserved for the first year of ownership, and cash that is genuinely available for the down payment. That distinction often changes the answer.
Down payment funding options, with the real tradeoffs
Use cash savings
Savings is usually the cleanest source because it does not create new debt or trigger taxes. But “use savings” is not a complete recommendation. You need to decide how much of it can leave your account.
Suppose you have $95,000 in cash, need $18,000 for closing costs and moving, and want to preserve $30,000 as an emergency reserve. You do not have a $95,000 down payment. You have about $47,000 available, before accounting for near-term goals such as a planned leave from work or a car replacement.
Using more cash can lower the loan amount and sometimes reduce or eliminate mortgage insurance. But it can also leave you exposed. If the smaller down payment produces a monthly payment you can comfortably carry, keeping additional cash may be worth more than the interest savings.
Sell taxable investments
A brokerage account can provide flexibility, particularly when cash savings alone is not enough. The tradeoff is that selling may create capital gains taxes, reduce a diversified investment position, and take money away from a long-term goal.
The right question is not simply whether investments have earned a return. Ask what you are selling, what tax cost the sale could create, and what happens to your long-range plan if the portfolio is smaller. Selling a concentrated position may be different from selling broadly diversified investments. Tax treatment depends on your cost basis, holding period, income, and state, so a tax professional can help with the details when the stakes are meaningful.
It can also be reasonable to combine a modest sale with a smaller down payment rather than liquidating enough investments to force a 20% threshold. The added mortgage cost should be compared with the value of keeping more of your portfolio invested and maintaining cash reserves.
Receive a gift from family
A family gift can make a home purchase possible sooner, but it is not just an informal transfer of money. Lenders commonly require documentation showing where the funds came from, confirmation that the money is a gift rather than an undisclosed loan, and evidence that it has moved into your account.
The human side matters, too. A gift may come with expectations about the home, location, timing, or future support. Those expectations deserve a direct conversation before the money moves. If family help would make the purchase feasible but uncomfortable, that is part of the cost.
Gift-tax reporting and other rules can apply depending on the amount and circumstances. Do not assume a lender’s documentation requirement answers the tax question, or vice versa.
Use down payment assistance
State and local programs, housing finance agencies, employers, and nonprofit organizations may offer grants, forgivable loans, deferred-payment loans, or second mortgages for eligible buyers. These programs can be valuable, especially for first-time buyers, but the word “assistance” does not mean every option is free money.
Some programs have income limits, purchase-price limits, location requirements, homebuyer education requirements, or restrictions on how long you must live in the property. A deferred loan may become due when you sell, refinance, or move. A forgivable loan may require you to remain in the home for a stated period.
Read the repayment terms alongside the first mortgage terms. A program that reduces the cash you need now can still affect your flexibility later.
Borrow from retirement accounts or take a retirement-plan loan
This option deserves extra caution because it can solve the immediate cash gap while creating risks that are easy to underestimate.
A withdrawal from a retirement account may cause taxes and penalties, depending on the account type, your age, and the applicable exception. It also removes money that would otherwise have years to compound. A workplace retirement-plan loan avoids some of those immediate tax consequences, but payments reduce your take-home pay, and leaving or losing your job can accelerate repayment under the plan’s rules.
There are cases where a limited retirement-account strategy is part of a considered plan. But it should not be the default answer for reaching an arbitrary down payment target. If taking money from retirement is the only way the purchase works, test whether the home price or timing needs to change.
Choose a smaller down payment and finance more
Many buyers focus on reaching 20% because it can avoid private mortgage insurance on a conventional loan. Yet waiting to reach 20% is not automatically better. Home prices, rent, interest rates, savings growth, and your own life plans may all change while you wait.
A smaller down payment preserves liquidity and may let you buy sooner. In exchange, you borrow more, pay more interest over time, and may pay mortgage insurance. The comparison needs actual numbers, not a rule of thumb.
For example, putting $60,000 down instead of $90,000 leaves $30,000 in reserve or investments. But it also increases the loan by $30,000 and may add mortgage insurance. Whether that is worthwhile depends on the payment difference, how long you expect to keep the loan, the likely cost of needing cash later, and what that $30,000 would otherwise do for your plan.
Compare choices against the payment, not just the purchase price
A down payment decision becomes clearer when each option is tested against the same set of questions. What is the all-in monthly housing cost, including principal, interest, property taxes, homeowners insurance, mortgage insurance, HOA dues, and a realistic maintenance allowance? How much cash remains after closing? What happens if one income pauses for six months? Does the choice delay retirement contributions, debt payoff, or another priority?
Consider a couple choosing between a $650,000 home with 10% down and a $600,000 home with 15% down. The first may be technically approved by a lender, while the second may leave more room for child care, travel to see family, and an eventual job change. Approval answers whether a lender will make the loan. It does not answer whether the payment supports the life you want.
This is also why the interest rate alone should not decide the issue. A lower rate on a larger loan can still produce a payment that narrows your choices. A higher rate may be tolerable if the home price, cash reserve, and expected time in the home make the overall plan stronger.
Build a decision you can inspect
Gather the figures that actually drive the choice: income, recurring spending, cash accounts, taxable investments, retirement balances, debts, expected closing costs, the proposed loan terms, and near-term goals. Then model more than one path.
Try the 20% down version, the smaller-down-payment version, and the lower-price-home version. Include a setback scenario, such as a repair or a period with reduced income. The goal is not to predict every detail perfectly. It is to identify which assumptions would change your decision.
This is the kind of question Ask Linc is built for: bring the home decision, see how different funding choices affect cash, debt, retirement, and monthly flexibility, and inspect the math behind the recommendation. A mortgage lender, tax professional, or attorney can help with the loan, tax, and legal details specific to your situation.
The right down payment is often the one that leaves you able to handle the next chapter after closing, not just the closing itself.