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HL1Housing Living 101

The 20% Down Payment Rule and How PMI Works

By Tanika Patel
8 minute read

The 20% threshold: why it matters and what happens below it

Put down 20 percent of the home's purchase price, and most lenders will not require private mortgage insurance (PMI). Put down less, and PMI becomes a monthly cost added to your mortgage payment until you reach 20 percent equity in the home. PMI protects the lender if you stop paying — it is not insurance for you.

The 20 percent figure is not a law; it is a lending standard. Some lenders will skip PMI at 15 percent down, and some require it below 25 percent. The exact threshold depends on your credit score, the type of loan, and the lender's own rules. But 20 percent is the number most lenders use as the dividing line.

If you put down less than 20 percent, you will pay PMI until your loan balance drops to 80 percent of the home's original purchase price — not its current value. That means you could be paying PMI for 10 to 15 years, even if your home appreciates and you build equity faster.

Key Takeaways

  • PMI is required on most loans with down payments below 20 percent and costs between 0.5 and 2 percent of your loan amount per year, divided into monthly payments.
  • You can remove PMI once your loan balance reaches 80 percent of the home's original purchase price, which happens through regular payments or a home appraisal showing increased value.
  • FHA loans, VA loans, and USDA loans have different PMI structures and may allow you to put down less than 20 percent without the same cost penalty.
  • Putting down 10 to 15 percent instead of 20 percent may cost less in total interest if you can invest the difference at a higher return than your mortgage rate.
  • Some lenders offer piggyback loans or lender-paid PMI as alternatives, each with different trade-offs in interest rates and long-term cost.

What PMI actually costs each month

PMI typically runs between 0.5 and 2 percent of your loan amount per year. On a $300,000 loan, that could be $1,500 to $6,000 per year, or $125 to $500 per month. The exact rate depends on your credit score, the size of your down payment, and the lender.

A lower credit score pushes PMI higher. A 10 percent down payment costs more in PMI than a 15 percent down payment on the same loan. And different lenders price PMI differently, so shopping around matters. Some lenders also offer lender-paid PMI, where the lender covers the insurance cost but charges you a higher interest rate instead — which can be cheaper over time if you plan to keep the loan for only a few years.

PMI is not tax-deductible for most borrowers, and it does not build your equity. You are paying for the lender's protection, not your own.

How to remove PMI once you have it

PMI falls off automatically once your loan balance reaches 80 percent of the home's original purchase price. If you put down 10 percent on a $300,000 home, you borrowed $270,000. PMI drops when your loan balance falls to $240,000 — which happens through regular monthly payments over time.

You can also request PMI removal early if a new appraisal shows your home has appreciated. If your $300,000 home is now worth $350,000 and you still owe $240,000, you have crossed the 80 percent threshold and can ask your lender to remove PMI. The lender will order an appraisal, which costs $400 to $600 out of pocket, but if the value supports it, PMI goes away.

Some lenders allow you to request PMI removal after two years of on-time payments, even without an appraisal. Rules vary by loan type and lender, so ask your lender about their specific policy when you close.

FHA, VA, and USDA loans: different PMI rules

FHA loans allow down payments as low as 3.5 percent but require mortgage insurance for the life of the loan if you put down less than 10 percent. If you put down 10 percent or more, FHA mortgage insurance drops after 11 years. The insurance is called mortgage insurance premium (MIP) rather than PMI, but it works the same way — a monthly cost added to your payment.

VA loans do not require PMI or mortgage insurance at any down payment level, including zero down. Instead, VA loans charge a one-time funding fee (usually 2 to 3 percent of the loan amount) that can be rolled into your monthly payment. If you have a service-connected disability rating, the funding fee may be waived entirely.

USDA loans for rural properties do not require PMI but do charge an upfront may provide fee and an annual annual fee, both rolled into your payment. Like VA loans, USDA loans allow zero down payment. The total cost is usually lower than PMI on a conventional loan, but the structure is different.

Comparing 20 percent down versus less: the math

Putting down 20 percent avoids PMI entirely, but it is not always the cheapest option over time. If you have $60,000 saved and are buying a $300,000 home, you could put down 20 percent ($60,000) and borrow $240,000, or put down 10 percent ($30,000) and borrow $270,000 with PMI.

With 10 percent down, you keep $30,000 in savings and invest it elsewhere. If your mortgage rate is 6 percent and you can earn 7 percent on the $30,000 in a high-yield savings account or short-term bonds, you come out ahead even after paying PMI — because the return on your invested money exceeds the cost of PMI plus the higher interest on the larger loan.

The calculation changes if you plan to sell or refinance within a few years. PMI is a sunk cost if you leave before it drops off. It also changes if interest rates fall and you refinance — you may be able to remove PMI sooner through a new appraisal. Run the numbers with your lender or a mortgage calculator that includes PMI cost, not just the base interest rate.

Piggyback loans and other alternatives

A piggyback loan is a second mortgage that covers part of your down payment, allowing you to avoid PMI without putting down 20 percent. For example, you might put down 10 percent in cash, take out an 80 percent first mortgage, and a 10 percent second mortgage. No PMI is required because the first mortgage is exactly 80 percent.

The catch: you now have two monthly payments and two interest rates. The second mortgage usually carries a higher rate than the first, and you pay interest on both. Piggyback loans fell out of favor after 2008 because the math often does not work in your favor compared to paying PMI on a single loan, but they are still available from some lenders.

Lender-paid PMI is another route. The lender covers your PMI cost but charges you a higher interest rate — typically 0.25 to 0.5 percent higher. This works well if you plan to sell or refinance within 5 to 7 years, because you avoid years of PMI payments. If you keep the loan for 15 years, the higher interest rate usually costs more in total.

Saving for 20 percent: timing and trade-offs

If you are not yet at 20 percent down, you have three real choices: save longer and buy later, buy now with PMI and remove it as you build equity, or explore FHA or VA loans if you may have access to. There is no single right answer — it depends on your timeline, your savings rate, and whether home prices and rents in your area are rising faster than you can save.

Waiting to save 20 percent makes sense if home prices are stable or falling and you can save aggressively. It makes less sense if rents are rising faster than your savings, or if you are paying rent to someone else while waiting to build equity in your own home. The cost of renting while you save can exceed the cost of PMI over the same period.

If you buy now with PMI, focus on paying down the loan balance as fast as you can — extra principal payments, bonuses, or windfalls all shorten the time PMI stays on your loan. Once you hit 80 percent equity, request removal immediately.

Frequently Asked Questions

Can I pay PMI upfront instead of monthly?

Yes. Some lenders allow you to pay PMI as a lump sum at closing instead of rolling it into your monthly payment. This is called single premium PMI. It costs more upfront but saves money over time if you keep the loan long-term, because you avoid years of monthly PMI charges. If you plan to refinance or sell within 5 to 10 years, monthly PMI is usually cheaper.

What if my home value drops after I buy?

PMI stays on your loan based on the original purchase price, not the current value. If you bought for $300,000 and the home is now worth $250,000, you still need PMI until your loan balance reaches 80 percent of $300,000. This is one reason PMI can feel unfair during a market downturn — you are paying insurance for a risk that has already materialized.

Do I have to accept PMI, or can I negotiate it away?

PMI is not negotiable with the lender — it is a standard requirement for loans below 80 percent. What you can negotiate is the lender's PMI rate, the type of PMI (monthly versus single premium), and whether the lender offers lender-paid PMI as an option. Shop multiple lenders to compare PMI costs.

Will PMI drop automatically, or do I have to ask?

PMI drops automatically when your loan balance reaches 80 percent of the original purchase price, but only if you are current on payments. If you are behind, the lender will not remove it until you catch up. You can also request early removal with an appraisal showing increased home value, but you must ask — the lender will not do it on their own.

Is PMI the same on all loan types?

No. Conventional loans use PMI. FHA loans use mortgage insurance premium (MIP), which works similarly but has different rules and costs. VA and USDA loans do not use PMI at all but charge other fees instead. The structure and cost vary significantly, so compare all three if you may have access to.