IGP-M Second Preview Jumps 1.47% in Brazil and Puts Rent Adjustments Back in Play
BRAZIL · ECONOMY
Key Facts
- —The number The IGP-M second preview for September 2026 rose 1.47%.
- —The reversal The same reading in August was a fall of 0.36%.
- —What drove it Producer prices, the IPA-M, swung from minus 0.50% to plus 1.95%.
- —Consumer prices The IPC component moved from minus 0.49% to plus 0.47%.
- —Construction The INCC component slowed from 0.73% to 0.27%.
- —Why it matters IGP-M is the standard index for adjusting Brazilian rental contracts and some utility tariffs.
The IGP-M second preview is the number your landlord’s contract may be tied to. It just swung from deflation to a 1.47% monthly rise.
What the Number Says
The IGP-M in Brazil rose 1.47% in the second preview for September 2026, the Fundação Getulio Vargas (FGV) reported on 18 September 2026.
The same reading a month earlier had been negative. August’s second preview showed a fall of 0.36%, so this is a swing of more than 1.8 percentage points between two comparable readings.
The move came almost entirely from the producer side. The IPA-M, which tracks producer prices, went from minus 0.50% to plus 1.95%.
The consumer component moved less dramatically but in the same direction, from minus 0.49% to plus 0.47%. The construction cost component slowed, from 0.73% to 0.27%.
A preview is not the month. The IGP-M is published in previews through the month and closed at the end, and the final figure can differ from this reading.
Why the IGP-M Is the One Tenants Watch
Brazil has several inflation indices and they do different jobs. The IPCA is the official consumer measure and the one the central bank targets.
The IGP-M is a composite, and producer prices carry the largest weight in it. That is why it moves further and faster than the consumer index in both directions.
It is also, by long convention, the index written into residential and commercial rental contracts. Many Brazilian leases adjust once a year by the accumulated IGP-M, though a large share migrated to the IPCA after the index spiked in 2021.
The same index is used to adjust some public utility tariffs and service contracts. Its reach is wider than its name suggests.
That convention is why a producer-price swing reaches households. A commodity move at the wholesale level ends up in a rent letter twelve months later.
Live Market IntelligenceBrazil — Live Market Board
Rio Times · Live Market Intelligence
Brazil — Live Market Board
-0.41%
185,229.17
-0.41%
63,873.32
+0.58%
11,381.18
+1.30%
3,017,810
-1.43%
2,525.81
+0.16%
60,023.65
-0.35%
| Instrument | Last | Change | YoY | Prev. | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| IBOV | 185,229.17 | -0.41% | +21.85% | 185,992.03 | 168,310 | 167,142 | — |
| USD/BRL | 5.16 | +0.01% | -5.13% | 5.16 | 5.18 | 5.14 | — |
| SELIC | 14.00% | — | — | — | — | — | |
| PETR4 | 41.64 | -0.05% | +35.19% | 41.66 | 41.97 | 41.15 | 41,499,400 |
| VALE3 | 72.97 | +0.83% | +30.75% | 72.37 | 73.54 | 72.66 | 17,658,000 |
| ITUB4 | 38.60 | -1.03% | +4.57% | 39.00 | 39.34 | 38.39 | 29,487,800 |
| BBDC4 | 16.85 | +0.36% | +3.50% | 16.79 | 16.90 | 16.67 | 19,416,900 |
| BBAS3 | 19.37 | +0.47% | +0.73% | 19.28 | 19.44 | 19.16 | 11,069,200 |
| B3SA3 | 14.26 | -0.21% | +12.73% | 14.29 | 14.47 | 14.11 | 33,037,800 |
| ABEV3 | 14.89 | -0.80% | +21.91% | 15.01 | 15.07 | 14.81 | 16,453,100 |
| WEGE3 | 47.59 | +0.49% | +29.99% | 47.36 | 48.08 | 47.36 | 3,364,600 |
| PRIO3 | 59.14 | -0.19% | +50.67% | 59.25 | 59.81 | 58.74 | 3,325,600 |
| SUZB3 | 41.33 | +2.35% | -23.55% | 40.38 | 41.48 | 40.35 | 3,914,900 |
| RENT3 | 34.68 | -0.09% | +0.84% | 34.71 | 34.96 | 34.35 | 7,979,100 |
| AZZA3 | 15.89 | -2.63% | -53.76% | 16.32 | 16.42 | 15.82 | 1,330,300 |
| CSNA3 | 4.30 | +0.47% | -42.65% | 4.28 | 4.41 | 4.26 | 10,076,100 |
| GGBR4 | 24.69 | +2.19% | +51.38% | 24.16 | 24.85 | 24.18 | 7,047,600 |
| ENEV3 | 24.21 | -1.38% | +70.49% | 24.55 | 24.64 | 23.99 | 9,297,000 |
What This Means for Rents
A single monthly reading does not set a rent adjustment. The adjustment uses the accumulated twelve-month figure on the contract’s anniversary.
What a month like this does is change the direction of that accumulation. A deflationary month reduces the annual figure; a 1.47% month adds to it substantially.
For tenants, the practical move is to know your anniversary date. Track the accumulated figure in the months before it, rather than being surprised by the letter.
For landlords, the same information cuts the other way. A tenant who can read the index is a tenant who can negotiate when the number is uncomfortable.
Brazilian rental law allows the parties to agree a different index. Contracts tied to the IPCA exist and behave more gently, and they are worth asking about at signature.
The difference between the two indices is not small in a volatile year. A composite weighted toward wholesale prices can run several points above a consumer index over twelve months.
Tenants renewing in the coming months are the ones most exposed to this particular swing. A contract adjusting in, say, March will accumulate a September figure that is already in the series.
There is one more practical point. Landlords are not obliged to apply the full adjustment, and in a soft rental market many do not. The published index is a starting position rather than a verdict.
What It Means If You Live in Brazil
If you rent here, this reading is a signal rather than a bill. It tells you the direction the annual adjustment is likely to take, not what you will pay.
For foreign residents the index is often a surprise. Leases adjust automatically by a published number, and there is no negotiation built into the process.
The practical habit is simple. Note the month your contract adjusts, and check the accumulated IGP-M two or three months before it.
For investors holding rental property, the same swing is income rather than cost. Producer price inflation feeding into IGP-M-linked leases raises nominal yields.
It also raises vacancy risk. An adjustment that outpaces wages is the most common reason a tenant leaves rather than renews.
What Is Not Yet Known
The closing figure for September has not been published. This is the second preview, and the month can still move.
The twelve-month accumulated figure was not given in the release seen for this piece, and it is the number that actually sets adjustments.
The release did not name the specific goods behind the producer-price move, so the durability of the swing is unclear.
One month does not make a trend. August was negative and September’s preview is strongly positive, which is a reason to watch rather than to conclude.
The wider question is whether producer prices keep pushing. The IPA-M carries the heaviest weight in the composite, and it is the component most exposed to commodity prices and the exchange rate.
A weaker real feeds into that component directly, because much of what the index measures is priced in dollars. That is the channel through which a currency move becomes a rent letter.
None of that is forecast here. The reading is what it is, and the closing figure at the end of September is the next thing to look at.
The index has done this before. IGP-M readings swing through a wider range than consumer inflation in both directions, and a sharp month is often followed by a mild one.
Connected Coverage
- Brazil Inflation Gauges Jump at September’s Start as Oil Pressure Builds
- Cost of Living Curitiba Brazil 2026: Cheap Rent, Tight Wages
- Brazil Opens Bank Accounts to Foreigners Through the CPF Tax Number
Sources
- InfoMoney — 2ª prévia do IGP-M de setembro mostra alta de 1,47%
- O Povo — FGV: IGP-M sobe 1,47% na 2ª prévia de setembro
Frequently Asked Questions
Frequently Asked Questions
What did the IGP-M second preview show?
A rise of 1.47% for September 2026, against a fall of 0.36% in the equivalent August reading, according to the Fundação Getulio Vargas.
What drove the increase?
Producer prices. The IPA-M component swung from minus 0.50% to plus 1.95%. Consumer prices moved from minus 0.49% to plus 0.47% and construction costs slowed from 0.73% to 0.27%.
Why does the IGP-M matter for rent?
It is the index conventionally written into Brazilian rental contracts, which adjust once a year by the accumulated twelve-month figure. It is also used for some utility tariffs.
Does this reading set my rent adjustment?
No. Adjustments use the accumulated twelve-month IGP-M on your contract’s anniversary. A single monthly preview changes the direction of that accumulation, not the amount you pay.
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