Mortgage Points vs. Bigger Down Payment: Which Saves You More Money?

Published on 2026-10-23 · Free Educational Guide · 100% Client-Side Suite

Mortgage Points vs. Bigger Down Payment: Which Saves You More Money?

When preparing to purchase a home, many buyers find themselves with an extra pool of liquid cash—say, $5,000 or $10,000.

You are faced with a classic real estate financial dilemma:

  1. Option A: Put the extra money toward discount points to buy down your mortgage interest rate.
  2. Option B: Add the extra money to your down payment to reduce your loan principal.

Both strategies reduce your monthly mortgage payment and save on lifetime interest. But depending on your loan size, interest rate, and whether you are paying Private Mortgage Insurance (PMI), one strategy consistently outperforms the other.

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1. The Core Tradeoff Explained

  • Discount Points permanently lower your interest rate on the entire loan balance. This produces a higher monthly payment reduction per dollar spent, but it does not increase your home equity. If you sell early, that cash is gone.
  • A Larger Down Payment directly reduces the borrowed principal. It builds instant equity, lowers the balance that compounds interest, and can eliminate monthly Private Mortgage Insurance (PMI) if you reach the 20% down payment threshold.

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2. Head-to-Head Case Study: $450,000 Home Purchase

Let's model a concrete example for a buyer purchasing a $450,000 home in 2026 with an initial 10% down payment ($45,000), leaving a $405,000 mortgage at 7.00% fixed interest.

The buyer has an extra $4,050 in cash (exactly 1.0% of the loan amount). How should they deploy it?

Option A: Use $4,050 to Buy 1 Discount Point

  • Loan Principal: $405,000
  • Interest Rate: Drops from 7.00% to 6.75% (-0.25%)
  • New Monthly P&I: $2,626.73
  • Monthly Savings: $67.75 / month ($2,694.48 - $2,626.73)
  • Break-Even Horizon: $4,050 ÷ $67.75 = 59.8 Months (5.0 Years)
  • 30-Year Total Interest Paid: $540,623

Option B: Add $4,050 to Down Payment

  • New Down Payment: $49,050 (10.9%)
  • New Loan Principal: $400,950
  • Interest Rate: Remains 7.00%
  • New Monthly P&I: $2,667.54
  • Monthly Savings: $26.94 / month ($2,694.48 - $2,667.54)
  • Break-Even Horizon: Instant (The $4,050 remains as home equity!)
  • 30-Year Total Interest Paid: $559,363

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3. The Comparison Verdict

Monthly Cash Flow Winner: Discount Points

Buying points reduces the monthly payment by $67.75/month, compared to just $26.94/month from the larger down payment. In terms of pure monthly payment reduction, points provide 2.5x more monthly cash relief per dollar spent.

30-Year Interest Winner: Discount Points

  • Option A (Points) saves $24,390 in total lifetime payments ($20,340 net of points cost).
  • Option B (Down Payment) saves $9,698 in total lifetime interest.
  • If you keep the loan for the full 30 years, buying points saves more than double the interest!

Flexibility & Equity Winner: Larger Down Payment

  • If you choose Option B, the $4,050 is not spent; it is stored as home equity. If you sell the home in 2 years, that $4,050 comes straight back to your bank account at closing.
  • If you choose Option A (Points) and sell in 2 years, you only saved 24 × $67.75 = $1,626. You lose the remaining $2,424 permanently.

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4. The Critical Game-Changer: Private Mortgage Insurance (PMI)

The analysis above assumes both loans have the same PMI. However, if that extra cash pushes your down payment from 18% to 20%, the calculation changes completely!

On a conventional loan, putting down less than 20% requires monthly PMI, typically costing 0.5% to 1.5% of the loan amount annually.

  • On a $400,000 loan, 0.75% PMI costs $250 per month ($3,000/year)!
  • If spending $5,000 gets you to 20% down, you eliminate PMI immediately.
  • Saving $250/month in PMI instantly crushes the $67/month savings from discount points!

Rule of Thumb: If your extra cash can push you to the 20% down payment mark, ALWAYS choose the down payment to eliminate PMI. Never buy discount points while paying monthly PMI.

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5. Strategic Decision Checklist

| Condition | Best Choice | Why? |

| :--- | :--- | :--- |

| Down payment is between 15% and 19.9% | Larger Down Payment | Eliminates PMI immediately, saving $150–$300/mo. |

| You plan to stay in the home for 10+ years | Discount Points | Maximizes long-term interest savings and monthly cash flow. |

| You plan to move or refinance in < 5 years | Larger Down Payment | Preserves cash as home equity; avoids the break-even deficit. |

| Seller or builder is paying closing credits | Discount Points | Seller concessions cannot always be applied to down payment. |

Run your own personalized rate and points scenarios using our Discount Points Calculator!