How much down payment should you put on a rental property?

Start with a cash budget, then compare percentages

A down-payment percentage determines the loan size, not the entire cost of buying a rental. Before choosing it, subtract closing costs, initial repairs and an operating buffer from the cash you are willing to commit. Keep personal emergency funds separate from the property’s cash plan.

A percentage and a cash cap are two different constraints. With a $500,000 down-payment cap, 50% down fits a $900,000 price, while 75% requires $675,000 and does not fit. Do not silently shrink 75% to another percentage and label it the same scenario. If you change the percentage, recalculate and name the new case.

Use investment-property terms, not an advertised headline

Collect financing terms for the property’s occupancy, type, loan amount and your borrower profile. Compare the note rate, term, points, fees, amortization, lock expiry, reserve requirements and any penalty. A rate for an owner-occupied primary residence does not establish your rental-property borrowing cost.

Separate the rate used to calculate principal and interest from APR, which reflects additional borrowing costs. A lower payment with expensive upfront points may not be the best choice for a short holding period. Compare total initial cash and recurring costs together rather than sorting quotes on the headline rate alone.

Compare 20%, 50%, 75% and cash transparently

The table uses the same hypothetical $400,000 property, $3,200 rent and 6.5% 30-year fixed rate from the cash-flow guide. Holding the rate constant isolates the effect of loan size. Actual lenders may offer different terms at different down payments. The cash case has no loan.

All operating allowances are held constant, and each case includes 3% closing costs, $5,000 make-ready and six months of fixed owner costs plus debt payments as liquidity. The table is a comparison of assumptions, not proof that any financing program is available.

A lower payment has a cash tradeoff

More down can make a difficult month easier by lowering the required mortgage payment. It also leaves less cash available for repairs, another purchase or other investments. Cash placed in the home is not the same as cash in an accessible account; future refinancing or sale can involve costs and may not be available when you need it.

Stress-test each financing case with a lower rent, more vacancy and higher costs. Ask whether the remaining cash can fund the bad period without another loan. A scenario with a lower base return but a manageable downside may suit your priorities better. A positive base cash flow is not a guarantee against loss.

Choose the smallest shortlist of useful scenarios

Use three checkpoints: a cash budget you can fund, a monthly cushion that survives a plausible downside and a return you are willing to accept. If none of the scenarios passes, revisit the price or property instead of forcing a percentage that consumes your buffer.

RentQuarry’s manual workspace currently supports a fully amortizing 30-year fixed loan with at least 20% down, or cash. It does not model mortgage insurance, adjustable rates, balloon loans or lender qualification. A supported calculator input does not mean a lender will approve the loan. Use actual terms before making a financing decision.

• Record the quote date and expiration.
• Keep down-payment cash separate from total cash needed.
• Compare cash-on-cash as well as monthly dollars.
• Recalculate when rate, price or verified costs change.