Inflation at its highest since 2012

Inflation is at its highest rate since 2012, due to a rise in food and transport prices. The Consumer Prices Index (CPI) measure of inflation increased to 3% in September 2017, up from 2.9% in August.

The September inflation figures are significant as they are used to set some rates for the next tax year.

The state pension

The 3% rise in CPI means the state pension will increase in line with inflation in April 2018. Under the ‘triple lock’ guarantee the state pension rises by the higher of inflation, average wage increases or 2.5%.

Business rates

The Retail Prices Index, which is used to determine the increase in business rates from April 2018, rose by 3.9%.

Helen Dickinson OBE, chief executive of the British Retail Consortium, said:

The consequences of today’s RPI figures could be severe for many shops in a precarious position and struggling to survive. The hefty near 4% rise in business rates is set to add an extra quarter of a billion pounds to retailers’ already unreasonable business rates burden. For many shops this may be the last straw.

You might be interested in...

  1. TC Group Insights

    01 May 2026

    New Tax System Changes for 2026/27

    As we've now entered the new tax year, we've outlined below how to prepare for the new tax system changes for 2026/27 and why planning ahead for your tax return in January 2027 is advised. Read our blog for an overview of the upcoming changes.

    Learn more

    New Tax System Changes for 2026/27
  2. When To Review Your Business Structure

    28 Apr 2026

    When To Review Your Business Structure

    While you can’t control geopolitical tensions, economic volatility, shifting regulations, you can control how your business is structured to respond to them

    Learn more

    When To Review Your Business Structure
  3. Increasing the Value of your Business

    28 Apr 2026

    Increasing the Value of your Business

    Market volatility and deal pace are changing how SME owners view risk and reward. Read our insights on value creation in today’s M&A market.

    Learn more

    Increasing the Value of your Business
  4. Building a Better Business with an Outsourced Finance Function

    27 Apr 2026

    Building a Better Business with an Outsourced Finance Function

    Compliance matters, but most commercial problems do not arrive neatly at month end. Modern finance supports decisions as they happen, not just records them afterwards.

    Learn more

    Building a Better Business with an Outsourced Finance Function