In any country, the price of a house is only part of what you pay for it. The other part—which is often much larger—is mortgage interest, insurance, and closing costs. That's where you can really save money by buying a house.
This guide brings together what works in various countries: how to compare mortgages based on total cost, how to reduce your down payment without paying for unnecessary insurance, assistance for first-time homebuyers, and how to buy at auction without any surprises.
The Essentials
- Compare the total cost of the loan, not just the interest rate. It has a different name in each country: APR, APRC, TAE, TAEG, or CAT.
- A shorter loan term saves you a lot of money: In the example in this guide, a 15-year loan costs less than half the interest of a 30-year loan.
- With a down payment of less than 20% of the price, Several countries require mortgage insurance, which protects the bank, not you.
- Public programs allow purchases with a down payment of 2% to 5% in the United States, the United Kingdom, Canada, and Australia.
- Auctions offer the biggest discounts, but they require quick payment and will accept the property as-is.
The total cost of the mortgage
The advertised interest rate is not the cost of the loan. In each country, banks are required to disclose a figure that includes interest, fees, and other charges, always expressed as a percentage per year:
Always compare the same indicator over the same time period. In the United States, the financial consumer protection agency explains the difference between the interest rate and the APR; the logic applies to any country.
Term and Type of Interest Rate
The term changes everything. Consider a loan of 300,000 (in any currency) with an annual interest rate of 6% and equal installments:
| Deadline | Monthly payment | Total interest |
|---|---|---|
| 15 years | 2.532 | 155.683 |
| 20 years | 2.149 | 215.830 |
| 25 years | 1.933 | 279.871 |
| 30 years | 1.799 | 347.515 |
With a 30-year term, the monthly payment is about 30% lower than with a 15-year term, but the interest more than doubles. Choose the shortest term for which the monthly payment fits comfortably within your budget.
Test the installment with the highest interest rate. Before signing a variable-rate mortgage, calculate your monthly payment assuming a rate that’s 2 or 3 points higher than the current rate. If you can’t afford it, opt for a fixed-rate mortgage.
Down Payment and Mortgage Insurance
When the down payment is small, the bank's risk increases—and many countries require insurance that protects the lender:
In the United States, the financial consumer protection agency explains When can the PMI be removed?; in Canada, the insurance rules are on the CMHC.
Credit Score and Pre-Approval
Your credit history determines the interest rate banks offer you. A better credit score can be worth more than any price discount. Before you start looking for a home:
- Check your credit report and ask for any errors to be corrected.
- Avoid taking on new debt in the months leading up to the mortgage application.
- Apply for pre-approval from three or more institutions: banks, credit unions, and mortgage brokers.
- Get all the quotes within a short period of time. In the United States, inquiries made by mortgage lenders within 45 days count as one in his report.
First-Time Homebuyer Assistance, Country by Country
Several governments offer assistance to first-time homebuyers. These are the main programs in effect as of October 2026:
United States
United Kingdom
The complete rules are available on the British government's website regarding the Lifetime ISA and Stamp Duty.
Canada
The FHSA boundaries are available on the Canada Revenue Agency.
Australia
The maximum prices by region are listed in the Official website of the 5% Deposit Scheme.
Spain, Portugal, and Mexico
In Spain, the warranty terms are in the ICO page. In Brazil, the FGTS and the Minha Casa, Minha Vida program are included in our guide to How to Buy a Cheaper House in Brazil.
Taxes and closing costs
In addition to the down payment, there are costs associated with the purchase that many people forget about. In the United States, the closing costs They are usually between 2% and 5% of the purchase price. Include this in your budget:
- Property Purchase Tax, which varies by country and, in many cases, by state, region, or city
- Registration and Notary Public or a real estate attorney, depending on the country
- Property Appraisal and Bank Fees, such as the credit origination fee
- Home Insurance, which banks typically require for every mortgage
- Technical inspection, to identify any issues before signing
Auctions and Repossessed Properties
Properties repossessed by banks and sold at auction usually offer the biggest discounts. Each country has its own rules:
The discount comes at a price. At auction, the property is sold “as is”; it may be occupied and may have overdue taxes or fees. And the payment deadline is usually too short for a standard mortgage: make sure you have the money or your loan approved before placing a bid.
In the United States, the rules governing the purchase of government-owned real estate are found in the HUD Home Store FAQs.
Refinance and pay off later
After you buy, keep an eye on interest rates. If they drop, refinancing—switching to a cheaper mortgage—can save you a lot of money, as long as the prepayment penalty doesn’t eat into those savings:
Calculate the break-even point. Add up the costs of the new mortgage—appraisal, fees, taxes, and penalty—and divide by the monthly savings. The result is the number of months it will take for the refinancing to pay for itself.
Lease-to-own: Be careful
Contracts where you rent now and buy later seem like a solution for those who don't have a down payment or approved credit. The FTC, the U.S. consumer protection agency, lists the risks of these lease-to-own agreements:
- The “seller” may not be the owner, or the property may have overdue taxes or be subject to foreclosure.
- Upfront fees and higher installments than a regular rent.
- A late payment may result in the cancellation of the agreement, and you lose the money you've already paid.
- In the end, you might not be able to get a mortgage to complete your purchase.
Before signing, check with the land registry to confirm who the owner is and have a lawyer review the contract. Public rent-to-own programs are safer—see examples in our guide to low-income homeownership.
Frequently Asked Questions
What is the difference between the interest rate and the total cost?
The interest rate is simply the price of borrowed money. The total cost (APR, APRC, TAE, TAEG, CAT, or CET) includes fees and other mandatory charges. Two mortgages with the same interest rate can have very different total costs.
How much do I need to save for the down payment?
It depends on the country and the program. Options range from 2% to 5% in Australia and the United Kingdom, 3.5% for FHA mortgages in the United States, and even no down payment for VA and USDA mortgages. With a 20% down payment, you can usually avoid mortgage insurance.
Will requesting quotes from multiple banks hurt my credit score?
Very little, if you do it all within a short period of time. In the United States, inquiries made by mortgage lenders within 45 days count as a single inquiry.
Is it worth buying a house at auction?
This is a good option for those who have the money or approved credit, the time to do research, and a financial cushion for unforeseen circumstances. The discount makes up for risks such as current occupants, property-related debts, and the lack of an inspection.
When is it a good idea to refinance your mortgage?
When your monthly budget covers the costs associated with the transaction—fees, taxes, and any fines—within a reasonable timeframe, and you plan to stay in the property longer than that.
Your plan of action
- Manage Your Credit: a clean credit report, fewer debts, and savings in addition to the down payment.
- Search for assistance in your country for first-time homebuyers.
- Apply for pre-approval from at least three institutions during the same period and compare the total cost.
- Add taxes, home insurance, and closing costs Before making an offer—and, after the purchase, keep an eye on rates to refinance.
Programs, amounts, and rules verified using official sources from each country on October 11, 2026. The example term is a simulation. Rates and programs are subject to change: always confirm with your bank and your country’s official agency.
