How to plan a big purchase

In a nutshell

A big purchase, like a motorbike, a home renovation or new furniture, weighs on your budget for months. Planning means knowing the amount, choosing a deadline and deciding whether to save first or finance. It also means counting the costs that show up after you buy. That way the purchase fits your budget without creating debt or draining your emergency fund.

Example

Carlos wants to buy a used motorbike for R$ 6,000 (Brazilian reais) to get to work. He has two options.

Option 1: save first. He decides to buy in 12 months. How much to save each month: R$ 6,000 ÷ 12 = R$ 500.

Option 2: finance. Suppose the store offers 12 payments of R$ 600. The total would be 12 × R$ 600 = R$ 7,200. The difference is R$ 7,200 − R$ 6,000 = R$ 1,200, which is 20% more.

By saving first, Carlos waits a year but keeps R$ 1,200.

But the motorbike has costs after the purchase. Suppose insurance of R$ 80 a month and maintenance of R$ 50 a month. That is R$ 80 + R$ 50 = R$ 130 a month, or 12 × R$ 130 = R$ 1,560 a year. Carlos needs room in his budget for that too, not just for the bike's price.

Save first or finance?

Saving first is usually cheaper, because you pay no interest. And if something unexpected happens along the way, you are not locked into payments.

Financing makes sense when the purchase is urgent, or when the item itself helps you earn or save money. For example, a motorbike that replaces expensive transport. In that case, compare the total cost and the CET (Custo Efetivo Total, the total effective cost including interest, fees, insurance and taxes) of more than one offer.

Do not use your emergency fund

An emergency fund is for the unexpected: lost income, illness, an urgent repair. Spending it on a planned purchase leaves the family unprotected. Save the money for the purchase in a separate place, under a different name.

Step by step

1. Decide what you will buy and check the price in at least three places. Write down the lowest.
2. Choose a realistic deadline. Divide the price by the number of months to find how much to save each month.
3. Check that this amount fits your budget after fixed bills. If it does not, extend the deadline or pick a cheaper item.
4. List the costs that come after: insurance, maintenance, fuel, installation, delivery.
5. In Meu Gasto, use the decision simulator or the Ask feature, for example: "can I buy a R$ 6,000 motorbike?". It simulates the purchase without saving anything.
6. Create a goal with the amount and date. That way you can track how much you have saved.
7. When you buy, ask for a cash discount and compare it with the installment total.

Common mistakes

• Looking only at the product price. Insurance and maintenance cost money every month. Fix: add up running costs before you decide.
• Using the emergency fund. You are left with no cushion for the unexpected. Fix: keep the purchase money separate.
• Picking a payment because it "fits the month" without seeing the total. The total can be much higher than the cash price. Fix: multiply the payment by the number of months.
• Choosing a deadline that is too tight. If the monthly amount does not fit, you give up halfway. Fix: choose a longer deadline you can actually meet.