How much do I need to earn to buy a house for 800,000 pesos?

If you are wondering how much do I need to earn to buy an 800,000-peso house, a reasonable reference is to have an approximate monthly income of $20,000 to $25,000 pesos, considering a down payment between 10% and 20%, a 20-year mortgage, and making sure the monthly mortgage payment does not represent more than 30% of your income.

However, there is no single salary that guarantees mortgage approval. The result will depend on the down payment, loan term, interest rate, credit history, current debts, and the type of financing you use. At Viva México Inmobiliaria, we want to help you understand these numbers so you can establish a realistic budget before you begin searching for your next home.

So, how much do I need to earn for an 800,000-peso house?

For a practical calculation, let’s assume you purchase a home for $800,000 pesos, make a 20% down payment, and finance the remaining $640,000 pesos.

The scenario would look approximately like this:

• Home price: $800,000

• 20% down payment: $160,000

• Mortgage required: $640,000

• Reference loan term: 20 years

• Estimated monthly payment: between $6,200 and $7,100 pesos

• Recommended monthly income: between $20,600 and $23,500 pesos

The estimate uses hypothetical annual interest rates between 10% and 12% to show how the monthly payment may change. It does not represent an actual quote from a bank.

As a general reference, CONDUSEF recommends carefully reviewing the relationship between the monthly mortgage payment and income; different materials from the agency place around 30% of income as a prudent level for housing payments. 

Quick answer: for an $800,000-peso house, having verifiable monthly income of around $21,000-$24,000 pesos can be a good starting point if you make a 20% down payment and do not have other significant debts.

How is the income needed to buy a house calculated?

A simple way to estimate it is to first determine how much you would pay each month for your mortgage.

If your monthly payment were $7,000 pesos and you wanted it to represent no more than 30% of your income:

$7,000 ÷ 0.30 = $23,333 pesos per month

This means that an approximate income of $23,300 pesos per month would keep that monthly payment within 30% of your income.

This calculation does not mean that every bank will lend you exactly the same amount. Each financial institution evaluates payment capacity, credit history, loan term, and applicant characteristics differently.

How much would I pay per month for an 800,000-peso house?

The monthly payment mainly depends on how much money you need to borrow.

Using a 20-year mortgage with a hypothetical 11% interest rate as a reference, the approximate figures would be:

*Estimated income assuming the monthly payment represents approximately 30% of monthly income.

These figures are only intended to help create an initial budget. The actual payment may include insurance, fees, and other conditions established by the financial institution.

How much down payment do I need for an 800,000-peso house?

The down payment is one of the factors that most influences how much you will need to earn.

For a property priced at $800,000 pesos:

• 10% down payment: $80,000

• 15% down payment: $120,000

• 20% down payment: $160,000

• 25% down payment: $200,000

• 30% down payment: $240,000

Making a larger down payment has an important advantage: you need to borrow less money and, therefore, can reduce your monthly payment.

In Mexico, it is common for buyers to contribute part of the property’s value and finance the rest. The exact percentage required will depend on the mortgage and the institution you choose. 

Don’t forget the additional costs of buying a home

Having the $80,000 or $160,000 pesos required for the down payment does not necessarily mean you already have all the money needed to begin the transaction.

You should also consider other expenses related to purchasing a home, which may include:

• Property appraisal.

• Notary fees.

• Applicable taxes.

• Loan origination fee, when applicable.

• Mortgage-related insurance.

• Administrative expenses.

• Moving costs or initial property improvements.

For this reason, it is advisable to avoid using absolutely all your savings solely for the down payment.

Keeping an additional reserve can help you cover closing expenses and the first months of your new mortgage without compromising your financial stability.

Can I buy an 800,000-peso house if I earn 15,000 pesos per month?

It may be difficult with a traditional mortgage if you rely solely on a monthly income of $15,000 pesos.

Using a 30% reference, a prudent monthly payment would be around $4,500 pesos.

To get closer to purchasing an $800,000-peso property, you may need a combination of strategies such as:

• Making a larger down payment.

• Choosing a loan term that lowers the monthly payment.

• Using available funds from your Housing Subaccount.

• Buying through a joint mortgage.

• Combining financing programs when eligible.

• Looking for a lower-priced property.

Infonavit determines the available amount based on factors such as payment capacity and also offers programs that can increase purchasing capacity through housing funds or the participation of another person in certain mortgage products. 

What if I earn 20,000 pesos per month?

With an income of $20,000 pesos, a monthly payment equal to 30% would be approximately $6,000 pesos.

You would be much closer to the required scenario, but to finance $640,000 pesos you would probably need to improve one or more variables: make a down payment greater than 20%, obtain better financing conditions, or combine your income through a joint mortgage.

For example, with a 30% down payment, you would only need to finance approximately $560,000 pesos. In an illustrative scenario with a 20-year term and an 11% annual interest rate, the payment would be close to $5,780 pesos per month.

What if I earn 25,000 pesos per month?

With a monthly income of $25,000 pesos, allocating 30% to the mortgage would equal $7,500 pesos per month.

Based on the previous examples, this income could be compatible with an $800,000-peso house even with a down payment close to 10%, as long as the interest rate, loan term, and your credit profile result in a monthly payment within that range.

That does not mean the mortgage will be approved automatically.

The financial institution will also consider factors such as:

• Debts you are already paying.

• Credit card usage.

• Credit history with Buró de Crédito.

• Employment history.

• Verifiable income.

• Age.

• Type and term of financing.

Your other debts also affect how much you can borrow

A common mistake is calculating how much you can spend on a house based only on your salary.

Suppose you earn $25,000 pesos per month, but you are already paying:

• $3,500 for a car.

• $2,000 for a personal loan.

• $1,500 toward credit cards.

Even if your income seems sufficient to support a mortgage, those obligations reduce your available borrowing capacity.

For this reason, before applying for a mortgage, it may be advisable to reduce debts, avoid taking on new obligations, and review your credit history.

Is it possible to buy an 800,000-peso house in Oaxaca?

Housing prices vary considerably depending on the city, neighborhood, property size, services, and characteristics of the home.

As a market reference, data published in January 2026 based on information from the Federal Mortgage Society placed the average home price in Oaxaca at around $1.77 million pesos. For a property at that price, assuming a 20% down payment and 20-year financing, the required monthly income could vary approximately between $30,490 and $56,900 pesos depending on the institution. 

This does not mean that every property in Oaxaca has that price. A statewide average includes homes with very different characteristics and locations.

If your maximum budget is $800,000 pesos, the important thing is to begin your search by clearly establishing how much you can pay upfront, how much you could finance, and what monthly payment you can comfortably afford.

What can you do if the house you want is over your budget?

If a property is slightly above your current purchasing capacity, it does not necessarily mean you have to give up on your goal.

You can evaluate several alternatives.

Increase the down payment

Saving an additional $50,000 or $100,000 pesos can significantly reduce the amount of financing you need.

Buy with another person

Some programs allow the income of more than one person to be considered. Depending on the financing product, this can increase your purchasing capacity. 

Review Infonavit options

If you are eligible, knowing how much financing you have available and how much money is in your Housing Subaccount can help you make a more realistic calculation of your total purchasing capacity. 

Look for properties that match your real budget

It is not always advisable to use the maximum amount of credit that a financial institution is willing to offer you.

A home you can comfortably afford may be a better decision than purchasing a more expensive property and keeping your finances too tight for many years.

How much should I save before buying an 800,000-peso house?

A good initial goal would be to divide your money into three categories:

1. Down payment.

2. Expenses associated with the purchase.

3. Emergency fund.

If you plan to make a 20% down payment, that amount alone represents $160,000 pesos.

In addition, you will need to consider the costs associated with the transaction and maintain enough liquidity for unexpected expenses. The exact amount of notary fees and taxes varies depending on the location, transaction, and specific conditions of the purchase, so they should be estimated before signing.

How to know what kind of house you can actually afford

Before you begin visiting properties, follow this exercise:

1. Add up your verifiable monthly income.

2. Subtract your current loan and debt payments.

3. Determine a monthly mortgage payment you can comfortably afford without affecting your essential expenses.

4. Review how much money you have available for the down payment.

5. Check how much financing you may qualify for.

6. Consider the expenses associated with purchasing the property.

7. Use the result to establish a maximum price range.

Once you know that number, your property search becomes much more efficient.

At Viva México Inmobiliaria, we can help you precisely from this point: understanding what type of property fits your budget and reviewing available options on the Oaxaca coast without beginning your search with unrealistic financial expectations. Our real estate agency provides guidance to help you find options based on your budget and purchasing goals. 

Should you borrow the maximum mortgage amount you are offered?

Not necessarily.

Just because a financial institution determines that you can afford a certain amount does not mean you should use your full borrowing capacity.

Before deciding, ask yourself:

• Could I still make the monthly payment if an unexpected expense appears?

• Would I still be able to save money?

• Do I have other financial goals?

• Is my income stable?

• Do I have an emergency fund?

• Could I handle a temporary period of lower income?

The best home for your budget is not simply the one you can purchase today, but one whose payments you can maintain comfortably over the long term.

Conclusion: how much do you need to earn to buy an 800,000-peso house?

As a general estimate, to buy an $800,000-peso house using financing, you can consider the following scenarios:

• With a 10% down payment, an income of around $25,000 pesos per month.

• With a 20% down payment, approximately $21,000 to $24,000 pesos per month.

• With a 30% down payment, approximately $19,000 to $20,000 pesos per month.

These figures are estimates, not universal requirements. Your actual purchasing capacity will depend on the financing available, interest rate, loan term, debts, credit history, and verifiable income.

If you already know your budget and want to start comparing options, you can review our Houses for Sale in Oaxaca. At Viva México Inmobiliaria, we can help you identify properties that are closer to your purchasing capacity and your goals, instead of searching based only on price.

Frequently Asked Questions

How much do I need to earn to borrow 800,000 pesos?

To receive an $800,000-peso mortgage, you would need a higher income than the amount required to buy a house priced at $800,000 pesos because, in this case, you would be financing the entire $800,000. The amount will depend on the interest rate, loan term, debts, and the policies of the institution reviewing your application.

How much do I need to earn for an 800,000-peso house with a 20% down payment?

With a 20% down payment, you would contribute $160,000 pesos and need to finance approximately $640,000 pesos. In a 20-year mortgage example with hypothetical rates between 10% and 12%, the monthly payment would be around $6,200-$7,100 pesos, so an approximate income of $21,000-$24,000 pesos per month would be a prudent reference.

Can I buy a house if I earn 20,000 pesos per month?

Yes, it may be possible, although it will depend on the property price, down payment, and mortgage conditions. For an $800,000-peso home, earning $20,000 pesos per month may require a larger down payment, a strong credit profile, or supplementing your purchasing capacity through another financing option.

How much is the monthly payment on an 800,000-peso house?

If you make a 20% down payment, you would finance $640,000 pesos. In a 20-year mortgage example, the monthly payment could be around $6,200 to $7,100 pesos using hypothetical interest rates between 10% and 12%. The final payment will depend on the offer provided by each financial institution.

Is it better to make a larger down payment or take out a bigger mortgage?

A larger down payment reduces the amount you need to finance and generally lowers both the monthly payment and the interest paid over the life of the mortgage. However, it is not advisable to use all your savings: you should also reserve funds for closing costs, moving expenses, maintenance, and unexpected expenses.

Can Infonavit help me buy an 800,000-peso house?

It may be possible if you are eligible and your available financing capacity is sufficient. The amount available depends on your individual situation and payment capacity. You may also be able to use funds from your Housing Subaccount and, depending on the applicable program, combine your purchasing capacity with other authorized financing options.