Although it’s hard to predict when the Postal Service™ will (or can) raise postage rates again, it is probably safe to assume that their objective will be to raise rates in January of 2019 by the statutory limit of CPI. The last increase took place in January of 2018 and was based off the August CPI percentage of 1.987. Since March of this year, the percentage has been increasing slightly and, in June, was 2.254 percent. If the trend continues, we may see that percentage rise even further by August, the number likely to be used in a January price change.
To see the latest figures, click here.