Rounded values
Total and monthly changes in employment and job vacancies have been rounded to the nearest hundred. Monthly changes and growth rates are calculated before total employment or job vacancy values are rounded. Rates have been rounded to the nearest hundredth.
Seasonal adjustments
The Index’s data insights are seasonally adjusted to limit the effect of seasonal patterns in employment and hiring throughout the year, which lead to regular fluctuations in workforce growth and contraction.
Employment growth formula
Employment growth(t) = [Employment(t)-Employment(t-1)]/[0.5*Employment(t)+0.5*Employment(t-1)]
Time series
The Index uses data going back to January 2015 in the US and Canada and January 2018 in the UK. Published at the earliest opportunity every month, the Index shows the number of people employed by small businesses (US and Canada) or the number of job vacancies at small businesses (UK) in the previous month and how that number has changed since the month before. So, in March, the Index shows total employment or job vacancies in February and the monthly growth rate — up or down — compared to January. The Index helps to eliminate almost all of the time lags in official statistics — for example, of up to nine months in the US — by providing estimated projections of what those statistics will ultimately show when they are published.
Sample sizes
The total sample across all three countries is around 424,000 small businesses. The US sample is almost 333,000 small businesses. The Canadian sample is almost 66,000 small businesses. The UK sample is almost 25,000 small businesses. The minimum sample sizes for regions or sectors to be included in the Index are 1,000 small businesses in the US, 800 small businesses in Canada, and 200 small businesses in the UK.
Target populations
In the US and UK, the Index targets the populations of small businesses with one to nine employees. In Canada, the target series is small businesses with one to 19 employees. This ensures the data outputs are consistent with official statistics available for benchmarking during the calibration process. Data insights for these target populations are particularly valuable since most datasets fail to cover this portion of the economy well. Please note: Unlike the US and Canada Indexes, the UK Index uses job vacancy data for calibration rather than employment data because official employment statistics are not currently available on a monthly basis for small businesses.
External data sources
External data sources used alongside anonymous QuickBooks small business invoicing software customer data include:
Geographic regions
- US data insights are divided into Bureau of Economic Analysis (BEA) regions
- Canada data insights are divided into Statistics Canada regions
- UK data insights are currently available at the country level (England, Scotland, Wales, Northern Ireland), not regionally within countries.
Industry sectors