Two regimes, two logics
Before any number, understand that Simples Nacional and Presumed Profit start from opposite ideas. Simples bundles almost every tax into a single slip, the DAS, computed on gross revenue. Presumed Profit does not treat revenue as the final base: it presumes a fraction of it is profit and taxes that margin with several separate taxes, each with its own rate and due date. Comparing the two by the final number without grasping that difference in mechanics is like comparing two cars by the price of a full tank.
Simples Nacional (LC 123/2006)
- Almost all taxes in a single slip, the DAS, levied on revenue.
- The effective rate grows with the trailing 12-month revenue (RBT12).
- The employer social charge (CPP) is already baked into the Annex III DAS.
- Fewer ancillary obligations; a R$ 4.8 million/year ceiling.
Presumed Profit
- Taxes a presumed margin (32% for services in general).
- IRPJ and CSLL on the presumed base; PIS, COFINS and ISS separately.
- The 20% employer CPP on the pró-labore is collected separately.
- More ancillary obligations; no Simples revenue ceiling.
Simples: the two formulas that decide everything
Simples looks like a rate table, but two formulas run beneath it. The first turns the table nominal rate into the effective rate you actually pay. It lives in art. 18, §1º-A of LC 123/2006 and is what makes the real bite smaller than the band number, especially at the start of each band.
Alíquota efetiva = (RBT12 × Aliq − PD) ÷ RBT12- RBT12
- gross revenue accumulated over the 12 months before the calculation month
- Aliq
- nominal rate of the band the RBT12 falls into (Annex III or V)
- PD
- deductible portion of that band, defined in each annex
The second formula is the one almost nobody masters, and the most important for services. The Fator R decides whether the company is taxed under Annex III, the cheaper one, or Annex V, the costlier. It is the ratio of the last 12 months of payroll (which includes the owner pró-labore, the 13th salary, charges and the FGTS) to gross revenue over the same period. It sits in art. 18, §§5º-J and 5º-M of LC 123/2006.
Fator R = Folha de 12 meses ÷ RBT12 → Fator R ≥ 28% ⇒ Anexo III- Folha de 12 meses
- sum of salaries, pró-labore, 13th salary, employer charge and FGTS over the last 12 months
- RBT12
- gross revenue accumulated over the last 12 months
- 28%
- the legal cut: below it, Annex V; at or above, Annex III
Not every service goes through the Fator R. Some are Annex III by nature (travel agencies, accounting firms as a rule); others would be Annex V but migrate to III when the Fator R reaches 28%, physiotherapy, architecture, medicine, engineering, advertising, information technology and most intellectual services. It is precisely this group that can plan the pró-labore to pay less. Compare Annex III and Annex V side by side, the first two bands show the gulf:
| RBT12 band (R$/year) | Annex III, nominal | Annex III, deduct | Annex V, nominal | Annex V, deduct |
|---|---|---|---|---|
| Up to 180,000 | 6% | — | 15.5% | — |
| 180,000.01 to 360,000 | 11.2% | R$ 9,360 | 18% | R$ 4,500 |
| 360,000.01 to 720,000 | 13.5% | R$ 17,640 | 19.5% | R$ 9,900 |
| 720,000.01 to 1,800,000 | 16% | R$ 35,640 | 20.5% | R$ 17,100 |
| 1,800,000.01 to 3,600,000 | 21% | R$ 125,640 | 23% | R$ 62,100 |
| 3,600,000.01 to 4,800,000 | 33% | R$ 648,000 | 30.5% | R$ 540,000 |
- RBT12
- Total gross revenue of the 12 months before the calculation month. It sets the table band and, through the formula, the effective rate.
- Fator R
- The 12-month payroll divided by the RBT12. From 28% up, a service company is taxed under Annex III instead of Annex V.
- Pró-labore
- The owner pay for working in the company. It counts in the Fator R payroll and bears INSS (11%) and IRRF, but it is still the owner money.
- DAS
- The Simples Nacional collection slip: the single monthly document that gathers the regime taxes, computed by the effective rate on the month revenue.
Presumed Profit: how the taxes stack up
In Presumed Profit there is no single slip. The law presumes that 32% of service revenue is profit (Law 9,249/1995, art. 15, §1º, III) and charges IRPJ and CSLL on that presumed base. Alongside, PIS and COFINS fall on revenue under the cumulative regime, and the ISS is municipal. The table below shows each piece and its cost for a service company billing R$ 20,000 per month.
| Tax | Base | Rate | At R$ 20k/month |
|---|---|---|---|
| IRPJ | 32% of revenue (presumed) | 15% (+10% above R$ 20k/month of profit) | R$ 960 |
| CSLL | 32% of revenue (presumed) | 9% | R$ 576 |
| PIS | Revenue (cumulative) | 0.65% | R$ 130 |
| COFINS | Revenue (cumulative) | 3% | R$ 600 |
| ISS | Revenue | 2%–5% (municipal) | R$ 400 – R$ 1,000 |
| Total (with 5% ISS) | % of revenue | 13.3% – 16.3% | ≈ R$ 3,266 |
The federal part alone, IRPJ and CSLL on 32%, plus PIS and COFINS on revenue, adds up to R$ 2,266 a month, or 11.33% of revenue. With the ISS, the total sits between 13.3% (2% ISS) and 16.3% (5% ISS). And that is still before INSS: in Presumed Profit the company pays the 20% employer contribution on the pró-labore separately, something Annex III of Simples already bakes into the DAS. That CPP is one of the quiet reasons Presumed Profit weighs more on anyone who draws a pró-labore.
The Fator R is the service company lever
Here is the result that sounds wrong the first time: paying yourself more can make the company pay less tax. The reason is the Fator R. While it stays below 28%, the company is in Annex V and a bigger pró-labore only adds INSS and IRRF, with no upside. The moment payroll hits 28% of revenue, the company jumps to Annex III and the effective rate collapses. The chart below plots the total tax burden (DAS plus INSS and IRRF on the pró-labore) for a company billing R$ 20,000/month, varying only the pró-labore. Watch the cliff.
View the data
| x | Value |
|---|---|
| 0 | 16.13% |
| 2,000 | 17.23% |
| 4,000 | 18.33% |
| 5,000 | 18.88% |
| 5,500 | 20.11% |
| 5,600 | 11.52% |
| 6,000 | 12.5% |
| 8,000 | 16.95% |
| 10,000 | 19.89% |
The curve tells the whole story. Inside Annex V, raising the pró-labore from R$ 4,000 to R$ 5,500 only worsens the burden (from 18.3% to 20.1%), because the DAS does not move while INSS and IRRF grow. But on reaching R$ 5,600, exactly 28% of R$ 20,000, the company enters Annex III and the burden plunges to 11.5%. That is the sweet spot: pay just enough pró-labore to touch the 28% and not a real more, because every real above it starts adding INSS and IRRF again without cutting the DAS. Going from R$ 6,000 to R$ 10,000 pushes the burden from 12.5% back up toward 20%.
See it in round numbers. At the same R$ 20,000/month revenue, a R$ 3,000 pró-labore gives a Fator R of 15%: Annex V, a 16.125% effective rate, a R$ 3,225 DAS. Adding R$ 330 of INSS and R$ 0 of IRRF, the total tax is R$ 3,555/month. Now raise the pró-labore to R$ 6,000: a Fator R of 30%, Annex III, a 7.3% effective rate, a R$ 1,460 DAS. INSS becomes R$ 660 and IRRF R$ 380.02; the total tax falls to R$ 2,500.02/month. The DAS dropped R$ 1,765; the larger pró-labore cost R$ 330 more of INSS and R$ 380.02 of IRRF. Net: R$ 1,054.98 less tax per month, R$ 12,659.76 per year, and the owner still takes R$ 3,000/month more home.
Simples or Presumed Profit: when each wins
With both gears exposed, the comparison is direct. Put the two regimes at the same R$ 20,000/month billing. Simples in Annex III pays R$ 1,460 of DAS. Presumed Profit adds up to R$ 3,266 (IRPJ R$ 960 + CSLL R$ 576 + PIS R$ 130 + COFINS R$ 600 + ISS of R$ 1,000 at 5%) and still collects the employer CPP on the pró-labore separately. Simples wins comfortably. Even Annex V (R$ 3,225 of DAS) merely ties Presumed Profit. In short: Presumed Profit only competes when the company is stuck in Annex V with a low Fator R, breaches the Simples ceiling, or has a cost structure that changes the math.
Simples usually wins when…
- The service company reaches Annex III through a 28% Fator R.
- Revenue is low or mid and fits the R$ 4.8 million ceiling.
- The margin is high: Simples taxes revenue, not actual profit.
- The owner wants fewer ancillary obligations and a single slip.
Presumed Profit can win when…
- The activity is stuck in Annex V with a low Fator R.
- Revenue passes the R$ 4.8 million Simples ceiling.
- The real margin is low and the 32% presumption beats the actual profit.
- The activity has a reduced presumption (e.g., 8% for hospitals).
The R$ 3.6 million state sublimit
The Simples ceiling is R$ 4.8 million/year, but there is a R$ 3.6 million sublimit just for ICMS and ISS, kept for 2026 by Ordinance CGSN No. 54/2025. Once past R$ 3.6 million, the company stays in Simples for federal taxes but pays ICMS and ISS separately, under the normal regime. In practice, the DAS stops being a single slip and the Simples advantage shrinks well before billing reaches the R$ 4.8 million ceiling.
Why the real margin matters so much
Simples and Presumed Profit tax revenue or a presumption of it, not the profit left over. If you bill a lot and spend little (high margin), the Simples effective rate bites a small slice of your real profit. If you have high costs and a thin margin, the 32% presumption can end up taxing a profit you never made, and then it is worth comparing with Actual Profit (Lucro Real), which taxes real profit and lets you deduct expenses. This guide covers only Simples and Presumed Profit; very low margins call for the Lucro Real analysis.
What changed in 2026: dividends and reform
A good part of the advantage of being a company came from one detail: after paying the company tax, the owner distributed profit to the individual with no further income tax. In 2026 that rule gained a ceiling. It is worth understanding exactly what changed, because many people overstated the law reach.
- 2006Simples Nacional is born
LC 123/2006 creates the unified regime for micro and small companies, with the DAS as a single slip.
- 2018The effective rate and the Fator R arrive
LC 155/2016, in force since 2018, rewrites the annexes and creates the effective-rate formula and the 28% Fator R.
- 2023The tax reform is approved
EC 132/2023 sets up CBS and IBS to replace PIS, COFINS, IPI, ICMS and ISS over a transition running to 2033.
- 2026Dividends and the reform test phase
Law 15,270/2025 begins taxing dividends above R$ 50k/month; CBS (0.9%) and IBS (0.1%) enter testing, with no effective collection.
Does the tax reform (CBS/IBS) change this math?
Not yet in 2026. This is a test year: CBS shows up at 0.9% and IBS at 0.1% only for the record, with no effective collection. CBS (replacing PIS, COFINS and IPI) truly starts in 2027; IBS (replacing ICMS and ISS) is phased in from 2029 to 2033. For Simples, the reform foresees a specific regime: the opting company stays on the DAS but may choose to collect CBS and IBS separately to generate credits for clients who need them. Since the new system reference rates are not yet settled, treat the 2026 Simples vs Presumed Profit comparison as valid for 2026 and revisit it at each change.
Is the minimum pró-labore still worth it?
It depends on the Fator R. Someone already comfortably in Annex III without effort need not inflate the pró-labore. Someone stuck in Annex V should compute how much pró-labore brings payroll to 28% and weigh the DAS savings against the extra INSS and IRRF, which is what the example showed: going from R$ 3,000 to R$ 6,000 saved R$ 1,054.98/month. Add the long-term INSS effect: contributing more today can mean a larger benefit tomorrow. To size the net of your own pró-labore, use the net salary calculator and the INSS rates guide.
One last practical piece: none of this works without issuing invoices. Every service rendered needs its matching invoice, which feeds the gross revenue that in turn defines the RBT12 and the Fator R. If you still handle that by hand, the invoice generator helps standardize billing. And to understand how the pró-labore becomes money in the individual account, see how to compute net salary and the IRRF calculation base. Whoever invests what the company leaves over can check the effect of contributions in the compound interest guide.
Frequently asked questions
What is the Fator R and why does it matter?
Does raising the pró-labore really cut the tax?
Is profit distribution still exempt in 2026?
Is the Presumed Profit base 32% for every service?
What is the Simples Nacional revenue ceiling?
Is Simples always cheaper than Presumed Profit?
For a service company, the game is usually to beat the Fator R and stay in Simples Annex III: paying just enough pró-labore to touch the 28% of payroll over revenue is what drops the effective rate and minimizes tax, no more, no less. Presumed Profit only competes at high revenue, when Annex V weighs or the margin is low. And remember that, since 2026, profit distribution is exempt only up to R$ 50k/month per company. Run the numbers for your case in the CLT vs PJ calculator and finalize the decision with an accountant.
Sources & references
- LC 123/2006, Simples Nacional (art. 18, §1º-A effective rate; §§5º-J/5º-M Fator R; art. 3º ceiling)
- Law 9,249/1995, 32% presumption (art. 15), IRPJ 15% + surtax (art. 3º), CSLL (art. 20)
- Law 15,270/2025, taxation of profits and dividends from 2026
- Law 9,718/1998, PIS (0.65%) and COFINS (3%) in the cumulative regime
- LC 116/2003, ISS (rates from 2% to 5%)
- EC 132/2023, tax reform (CBS and IBS)
- Receita Federal, Simples Nacional (sublimit and DAS calculation)