The calculation almost no one gets right

There is a question that precedes any retirement investment decision, and it is almost never answered with a number: how much do you need to have accumulated to stop depending on your earned income?

Without this figure, there is no plan. There is only accumulation without a destination.

a. How much you need to accumulate

Start with your costs, not your net worth.

Add up everything your life costs in a year: housing, food, healthcare, education, transportation, leisure, taxes, and insurance. Multiply your monthly cost by twelve.

Next, divide that number by the assumed withdrawal rate, the percentage of your assets that can be withdrawn annually with a controlled risk of depletion throughout your retirement.

With a cost of living of R$ 15,000 per month, or R$ 180,000 per year:

The difference between the first and last line is R$ 1.5 million, produced by a variation of just one and a half percentage points.

These rates are not universal recommendations. The choice depends on the length of your retirement, portfolio composition, costs, taxes, and your desired margin of safety.

b. Why your withdrawal rate is not your return

Here is one of the most common mistakes in retirement planning in Brazil.

If your portfolio earns 12% per year and inflation is 4.5%, your real return is approximately 7.2%. Withdrawing 12% means consuming your capital, even if the nominal balance seems stable. The number on the screen goes up; your purchasing power goes down.

The sustainability of your withdrawals depends on your net real return, but also on the sequence of returns, costs, taxes, and the duration of your retirement. A bad sequence in the early years can compromise your portfolio even when the long-term average return seems sufficient.

The complicating factor in Brazil is that high nominal returns coexist with high inflation. Anyone who calculates their retirement using a nominal rate will end up with a comfortably undersized nest egg.

c. How long will it take to get there

Once the target is set, the second calculation is the timeline. It depends on three variables: what you already have, how much you contribute monthly, and what real return you assume.

With an initial capital of R$ 500,000, a monthly contribution of R$ 10,000, and an effective real return of 6% per year, the R$ 4.5 million target would be reached in approximately sixteen years and two months.

Increasing the contribution to R$ 15,000 would reduce the timeline to about twelve years and ten months. Reducing your projected cost of living by 20% would lower the target to R$ 3.6 million, reached in approximately thirteen years and eight months.

In other words: reducing future expenses can bring retirement forward without requiring you to bet on higher returns. Your costs are partially under your control. The market is not.

d. Emergency fund: how much and where

Six to twelve months of living expenses, in highly liquid assets.

Those with a stable income can operate closer to the six-month mark. Business owners, freelancers, and those with variable income need greater protection.

Regarding where, the key criteria are daily liquidity and low volatility. Tesouro Selic and daily liquidity CDs issued by solid institutions meet this objective. Fixed-rate bonds, real estate, and products with long redemption periods do not.

And one distinction changes the calculation: the emergency fund is not part of your retirement capital. It is not included in your withdrawal rate because it cannot be spent without leaving you exposed. It is protection capital, not income-generating capital.

e. Is private pension worth it?

It is worth it in specific situations. The real advantages are structural, not necessarily related to profitability.

The first is the absence of the "come-cotas" tax. Many fixed-income and multi-market funds deduct income tax semi-annually. PGBL and VGBL plans are only taxed upon withdrawal or when benefits are received, keeping more capital invested during the accumulation period.

The second is the final tax rate. In the regressive tax table, the tax starts at 35% and drops to 10% on each contribution that remains invested for more than ten years. Each contribution has its own accumulation period.

The third is succession planning. These plans allow you to designate beneficiaries, and as a rule, the funds are transferred without the need for probate. The Supreme Federal Court (STF) ruled in Theme 1,214 that it is unconstitutional to charge ITCMD (inheritance tax) on PGBL and VGBL funds transferred to beneficiaries upon the policyholder's death.

The disadvantages are also real. High management fees can wipe out the tax benefits, and older plans may still charge entry fees. With the regressive tax table, early withdrawals are also subject to high tax rates.

The practical conclusion: private pension plans can be a good structure, but that doesn't make every plan a good product. What matters is the combination of fees, time horizon, taxation, and portfolio quality.

f. PGBL or VGBL

The rule is straightforward.

PGBL for those who file the long-form tax return, contribute to the official social security system, and can take advantage of the deduction limited to 12% of their annual taxable gross income. The contribution reduces your tax base today, but the tax upon withdrawal is applied to the entire amount, both principal and earnings.

Anything exceeding the 12% limit does not generate a deduction and will still be fully taxed upon withdrawal. For this reason, any excess should generally be directed to a different structure. The Federal Revenue Service confirms the 12% deduction limit.

VGBL for those who use the simplified tax return, have already reached the PGBL limit, or do not have taxable income. There is no deduction upon entry, and the tax is applied only to the earnings.

Law 14.803 of 2024 allows the choice between progressive and regressive taxation to be made up until the first withdrawal or the start of benefit payments. This rule also applies to older plans that have not yet had any withdrawals, but once the choice is made, it is irrevocable.

As of 2026, Decree 12.499 establishes a 5% IOF tax on the portion of annual contributions to VGBL plans exceeding R$ 600,000, considering the total of all plans held across different insurance companies.

Portability is only possible between plans of the same type. Migrating from a PGBL to a VGBL requires a withdrawal, which triggers tax liability and resets the time-based tax bracket for the new plan.

g. What the math reveals

When you combine your target net worth, time horizon, reserves, and tax structure, the result is often uncomfortable. But discovering at forty-five that you need to adjust your contributions, costs, or timeline still gives you room to act. Discovering it at sixty-five leaves you with very few options.

The most expensive mistake in retirement planning isn't choosing the wrong investment. It’s spending twenty years investing with discipline without ever having defined the number you are chasing.

If you would like to see this calculation done with your own numbers, including a diagnostic of your current structure and a projection up to your date of financial independence, learn about the Strategic Wealth Planning from AXIOM.

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