Down Payment Calculator
Calculate how different down payment amounts affect your mortgage payment and total cost.
Results
Visualization
How It Works
This calculator shows how your down payment percentage directly impacts your monthly mortgage payment and total interest paid over the life of your loan. By adjusting your down payment from 3% to 20% or more, you can see exactly how much you'll save on interest and potentially avoid expensive private mortgage insurance (PMI). Putting less than 20% down triggers private mortgage insurance (PMI) costing $50-200 per month, which can add $15,000-60,000 over the life of a 30-year mortgage. However, many first-time buyer programs allow down payments as low as 3-3.5%, and waiting years to save 20% may cost more in home price appreciation and missed equity building than paying PMI.
The Formula
Variables
- Home Price — The total purchase price of the home you're buying, used as the starting point for calculating your loan amount
- Down Payment % — The percentage of the home price you'll pay upfront in cash, with the remainder financed through a mortgage (e.g., 20% down means you borrow 80%)
- Mortgage Rate % — Your annual interest rate on the loan, expressed as a percentage (current rates typically range from 3% to 8% depending on market conditions and your credit)
- Loan Term — The number of years to repay the mortgage, commonly 15, 20, or 30 years; longer terms mean lower monthly payments but more total interest paid
- Loan Amount — The actual amount you're borrowing, calculated as Home Price minus Down Payment
- Total Monthly Payment — The principal and interest payment due each month; does not include property taxes, insurance, or HOA fees
Worked Example
Let's say you're buying a $350,000 home with a 6.5% interest rate and a 30-year loan term. If you put down 5% ($17,500), your loan amount is $332,500, and your monthly payment would be approximately $2,109. However, if you increase your down payment to 20% ($70,000), your loan amount drops to $280,000, and your monthly payment falls to about $1,774—saving you $335 per month and nearly $120,600 in total interest over 30 years. This example shows why even a modest increase in down payment can have a significant long-term financial impact.
Methodology
Down payment calculation determines the required cash investment for a home purchase based on the purchase price and mortgage program parameters. Conventional loans typically require 5 to 20 percent down, with private mortgage insurance (PMI) required for down payments below 20 percent at costs of 0.3 to 1.5 percent of the loan amount annually. FHA loans require a minimum 3.5 percent down payment with both upfront mortgage insurance premium (1.75 percent of the loan amount) and annual MIP (0.55 percent for most borrowers). VA loans offer zero-down financing for eligible veterans with a funding fee of 1.25 to 3.3 percent. USDA loans also offer zero down in eligible rural areas. The calculator includes closing costs of 2 to 5 percent of the loan amount that must be paid in addition to the down payment, showing the total cash needed to close. The calculator also models the long-term cost difference between various down payment amounts by projecting PMI duration and total interest paid over the loan term.
When to Use This Calculator
First-time homebuyers determine how much they need to save for a down payment and closing costs at various price points. Homebuyers comparing loan programs evaluate the total cash requirement and long-term cost of different down payment and financing combinations. Financial advisors help clients determine the optimal down payment amount that balances cash preservation against PMI costs and monthly payment reduction. Real estate agents set realistic budget expectations with buyer clients by showing the total cash needed across different price ranges.
Common Mistakes to Avoid
Budgeting only for the down payment without accounting for closing costs, which add 2 to 5 percent to the cash needed. Assuming 20 percent down is always required when several programs offer much lower minimums. Not factoring PMI into the monthly payment comparison when evaluating lower down payment options. Using gift funds without understanding the documentation and sourcing requirements that lenders impose on gifted down payment funds.
Practical Tips
- Aim for at least 20% down to avoid PMI (private mortgage insurance), which adds 0.5%–1.5% annually to your loan amount until you reach 20% equity. Even a difference of 5 percentage points can save tens of thousands in PMI costs.
- Consider a shorter loan term if you can afford higher monthly payments—a 15-year mortgage at the same rate will cost much less in total interest than a 30-year loan, often saving $100,000+ on a $350,000 home. Getting at least 2-3 quotes or price comparisons before committing helps ensure you are paying a fair market rate for your specific needs.
- Don't drain your emergency fund to reach a higher down payment; lenders recommend keeping 3–6 months of expenses in savings even after buying. A smaller down payment with PMI is sometimes better than having zero liquid reserves.
- Use this calculator alongside a mortgage pre-approval to see realistic interest rates for your credit profile. Rates vary by credit score, down payment amount, and loan type (FHA, conventional, VA), so check with multiple lenders.
- Remember that this calculator shows principal and interest only; add estimates for property taxes, homeowners insurance, HOA fees, and utilities to see your true housing cost, which typically should not exceed 28% of gross monthly income. Getting at least 2-3 quotes or price comparisons before committing helps ensure you are paying a fair market rate for your specific needs.
- Get at least three written estimates from licensed, insured moving companies before making a decision, and verify each company's FMCSA registration number for interstate moves.
- Start planning your move at least 6 to 8 weeks in advance for long-distance relocations, as last-minute bookings during peak season may be unavailable or significantly more expensive.
- Document the condition of all valuable items with photographs before the move, creating a timestamped record that supports insurance claims if damage occurs during transit.
- Research your destination thoroughly including neighborhoods, school districts, commute routes, and local services before committing to housing, since these factors significantly affect quality of life and long-term satisfaction.
- Budget a contingency fund of 10 to 20 percent above your calculated moving costs for unexpected expenses that inevitably arise during the relocation process.
- Consider the tax implications of your move, since moving expenses may be deductible for military members, and state income tax changes can significantly affect your net financial position.
- Declutter and sell or donate items you no longer need before the move, since every pound shipped long-distance costs money and every box packed adds to your time and labor investment.
- Transfer medical records, prescriptions, and school records well in advance of your move date to ensure continuity of care and enrollment at your destination.
- Create a detailed inventory of all items being moved, including those in storage areas and closets that are easy to forget, to ensure your cost and size calculations reflect the full scope of the move.
- Compare the total cost of moving all your belongings against the cost of selling items and replacing them at your destination, particularly for heavy or bulky furniture that is expensive to ship.
- Request a copy of your moving company's claims process and dispute resolution procedure before signing the contract so you know your rights if problems arise during the move.
- Schedule your move for mid-month and mid-week if possible, as demand and prices are lowest when most people are not moving, potentially saving 20 to 30 percent on mover costs.
- Prepare an essentials box with medications, toiletries, chargers, important documents, and a change of clothes that you keep with you rather than on the moving truck.
Frequently Asked Questions
What's the minimum down payment required to buy a home?
Conventional loans typically require 3%–5% down, FHA loans allow 3.5% down, and VA loans require 0% down for eligible military members. However, putting down less than 20% triggers PMI, which increases your monthly cost. Some first-time buyer programs offer 3% down options, but the trade-off is higher monthly payments and PMI fees.
How much do I actually save with a larger down payment?
Every 5% increase in down payment roughly saves 5% on the total amount borrowed and interest paid. On a $300,000 home at 6.5% for 30 years, increasing from 10% to 20% down saves approximately $45,000 in total interest and removes PMI from your monthly payment, lowering your monthly cost by $200–250.
Can I avoid PMI without a 20% down payment?
Yes, some programs allow you to avoid PMI with 15% down through lender-paid PMI (the lender covers it but charges a slightly higher interest rate), or you can pay PMI upfront as a lump sum at closing. You can also request PMI removal once you reach 20% equity, though this requires an appraisal and typically takes several years.
Should I use my savings for a larger down payment or invest it instead?
This depends on your interest rate and investment returns. If your mortgage rate is 6.5% and historical stock returns average 7%–10%, investing may yield better returns—but this carries market risk. A safer approach: use savings to reach 20% down (avoiding PMI), then invest additional funds. Always keep 3–6 months of emergency expenses in cash first.
Does a larger down payment affect my interest rate?
Yes, typically a larger down payment qualifies you for a lower interest rate because you represent less risk to the lender. A 20% down payment might earn you a rate 0.25%–0.5% lower than a 5% down payment, which compounds into significant savings over 15–30 years.
How far in advance should I start planning my move?
Begin planning at least 8 weeks before a long-distance move and 4 weeks before a local move. Peak moving season from May through September requires even longer lead times since movers book up quickly. The earlier you start, the more options you have for scheduling, pricing, and preparation, reducing both cost and stress.
What is the most commonly underestimated moving expense?
The most commonly underestimated expenses are the combined cost of deposits and first month payments at the new location, which can total three to four months rent for renters, and the transaction costs of buying and selling homes, which consume 8 to 12 percent of the home value for homeowners. Many movers also underestimate packing supply costs, utility setup fees, and the time cost of the move itself.
Should I move myself or hire professional movers?
The answer depends on your distance, household size, physical ability, and available help. DIY moves are typically cheaper for short-distance moves with small households, but professional movers become cost-competitive for larger households and long distances when you factor in truck rental, fuel, equipment, insurance, food for helpers, and the value of your time and physical effort.
How do I choose a reliable moving company?
Verify the company is licensed and insured through the FMCSA for interstate moves or your state's regulatory agency for intrastate moves. Read reviews on multiple platforms, ask for references, get binding written estimates from at least three companies, and never hire a company that demands a large cash deposit before the move. Red flags include unmarked trucks, no physical office address, and estimates that seem significantly lower than competitors.
How do I estimate the time needed for packing an entire household?
Allow approximately 1 to 3 hours per room depending on the density of belongings, with the kitchen typically taking the longest at 4 to 8 hours due to fragile and oddly shaped items. A typical 3-bedroom home takes 20 to 40 hours of total packing time. Start packing infrequently used rooms and items 3 to 4 weeks before moving day and leave daily essentials for the last day.
What hidden costs do most people miss when calculating their move?
The most commonly missed costs include cleaning the old home, utility overlap during the transition, storage if timing does not align, pet boarding or transport, vehicle shipping for long-distance moves, temporary housing if the new home is not immediately available, and the productivity lost from taking time off work. These incidentals can add 10 to 25 percent to the basic moving cost estimate.
How does the time of year affect moving costs?
Moving during peak season from May through September costs 20 to 30 percent more than off-peak months, with end-of-month weekends being the most expensive dates. Winter moves offer the lowest prices but carry weather risks. Mid-month, mid-week moves provide the best combination of availability and pricing. School schedules are the primary driver of seasonal demand.
What should I do if my moving cost significantly exceeds the estimate?
For binding estimates, the mover cannot charge more than 10 percent above the estimate at delivery. For non-binding estimates, you are responsible for the actual cost but the mover must accept 100 percent of the estimate at delivery, with 30 days to pay any overage. Document everything, request itemized charges, and file a complaint with FMCSA if you believe you have been overcharged.
Sources
- Consumer Financial Protection Bureau (CFPB): Mortgage Calculator and Buying Resources
- Federal Reserve: Understanding Mortgage Payments and Interest Rates
- HUD (U.S. Department of Housing and Urban Development): FHA Loan Requirements and Down Payments
- Investopedia: How to Calculate a Mortgage Payment
- National Association of Realtors: Home Buyer Guide and Down Payment Strategies