Market Size for Accounting firm in 2026 [Example]

The total available market (TAM) for accounting services globally is estimated at around $150 billion per year.

This figure includes individuals and businesses of all sizes looking for accounting help, tax preparation, and financial advisory. Given the increasing complexity of financial regulations and the growing number of startups and small businesses, the demand for accounting services is substantial and diverse.

The serviceable addressable market (SAM) narrows down the TAM to small businesses and solopreneurs, which constitutes about 13% of the overall market.

This equates to approximately $20 billion in annual spending. Focusing on this segment allows for a more targeted approach, acknowledging the unique needs of small enterprises while being realistic about the geographical and operational limits of the accounting firm.

The serviceable obtainable market (SOM) is based on an initial capture rate of 1% of the SAM in the first year.

With an average spend of around $500 per client annually for small businesses, this translates to about 400 customers in the first year, which is estimated to bring in around $200,000 in revenue. This is a conservative approach aligning with the norms in the accounting industry for new entrants, making it a realistic expectation.