Longest trading · Updated October 2026
South Australian accountants, longest trading
As of October 2026, the three longest-trading accountants in South Australia on Staying Power are H&R Block Tax Accountants - Hallett Cove (started in 1971; 5.0 from 18 Google reviews), H&R Block Tax Accountants - Newton (started in 1971; 4.8 from 11 Google reviews) and H&R Block Tax Accountants - Ingle Farm (started in 1971; 4.2 from 18 Google reviews).
- Accountants compared
- 437
- Google reviews
- 10,566
- Median rating
- 5.0
| # | Business | Rating | Google reviews | Started | Contact |
|---|---|---|---|---|---|
| 1 | H&R Block Tax Accountants - Hallett CoveShop TA05, S/C/246 Lonsdale Rd | 18 Google reviews | 1971 | ||
| 2 | H&R Block Tax Accountants - NewtonShop 1a Mercury Plaza, 94-96 Gorge Road | 11 Google reviews | 1971 | ||
| 3 | H&R Block Tax Accountants - Ingle Farm26a/247 Montague Road, Ingle Farm SA 5098 | 18 Google reviews | 1971 | ||
| 4 | RSM Australia | | Adelaide Accounting & Business Advisory Services4/191 Pulteney St, Adelaide SA 5000 | 16 Google reviews | 1972 | ||
| 5 | PBS Accountants & Advisers Pty LtdMarion SA | 10 Google reviews | 1980 | ||
| 6 | H&R Block Tax Accountants - Morphett Vale177-179 Main South Road, Morphett Vale SA 5162 | 31 Google reviews | 1981 | ||
| 7 | Greven & Co Financial Services | 11 Google reviews | 1985 | ||
| 8 | Quantum Accounting452 Pulteney St, Adelaide SA 5000 | 17 Google reviews | 1988 | ||
| 9 | TBM Accountants Pty Ltd138 South Tce, Adelaide SA 5000 | 12 Google reviews | 1988 | ||
| 10 | Assured Business & Wealth Advisors Pty. Ltd.2 Stirling Dr, Adelaide SA 5162 | 86 Google reviews | 1992 | ||
| 11 | Nationwide Accountants & Advisers - Professional Tax Returns28 Goodall Pde, Adelaide SA 5095 | 216 Google reviews | 1997 | ||
| 12 | EFC Group56 Greenhill Rd, Adelaide SA 5034 | 12 Google reviews | 1999 | ||
| 13 | Tashly Consulting Xero Bookkeepers AdelaideTHE Terrace Family, 70 Walkerville Ter, Adelaide SA 5081 | 17 Google reviews | 2000 | ||
| 14 | The Kalculators Brighton Accountants - Tax Return & Accounting Firm | 111 Google reviews | 2011 | ||
| 15 | DMC Tax10-12 Hurtle Pde, Adelaide SA 5095 | 17 Google reviews | 2011 | ||
| 16 | H&R Block Tax Accountants - Smithfield, SA600 Main North Road, Smithfield SA 5115 | 43 Google reviews | 2011 | ||
| 17 | Integral Bookkeeping Solutions - Adelaide Xero Bookkeepers322 Glen Osmond Rd, Myrtle Bank SA 5064 | 45 Google reviews | 2012 | ||
| 18 | New Heights Advisory & Tax17-19 Portrush Road, PAYNEHAM, Adelaide SA 5070 | 204 Google reviews | 2013 | ||
| 19 | PFS Accounting84 Tapleys Hill Rd, Adelaide SA 5014 | 67 Google reviews | 2013 | ||
| 20 | H.U. Partners6 Greenhill Rd, Adelaide SA 5034 | 22 Google reviews | 2013 | ||
| 21 | JSA Accounting | 12 Google reviews | 2014 | ||
| 22 | Festival Bookkeeping41 Barnes Road, Glynde SA 5070 | 30 Google reviews | 2015 | ||
| 23 | Integral Accounting Services266-268 Payneham Rd, Adelaide SA 5070 | 67 Google reviews | 2020 | ||
| 24 | Tiller Bookkeeping | 11 Google reviews | 2020 | ||
| 25 | AMA Tax Accountants and Bookkeepers401 North East Rd, Adelaide SA 5086 | 59 Google reviews | 2022 | ||
| 26 | Rowe Partners Christies Beach | 25 Google reviews | 2022 |
Staying Power compared 437 accountants in South Australia, with 10,566 Google reviews between them. Of these, 26 meet this list's method. The median rating is 5.0 from a median of 6 reviews.
Of the accountants compared, the most reviewed is AMA Accountants, with 651 Google reviews at 5.0.
How this list is ranked
Businesses are ranked by the year they started, as their own website states it, earliest first. Only businesses rated 4.0 or better from at least 10 Google reviews are listed.
The year is the business's own statement and is not checked against a register, and age alone says nothing about quality.
Questions
- Which accountants in South Australia have been trading the longest?
- As of October 2026, the three longest-trading accountants in South Australia on Staying Power are H&R Block Tax Accountants - Hallett Cove (started in 1971; 5.0 from 18 Google reviews), H&R Block Tax Accountants - Newton (started in 1971; 4.8 from 11 Google reviews) and H&R Block Tax Accountants - Ingle Farm (started in 1971; 4.2 from 18 Google reviews).
- How does Staying Power rank accountants in South Australia?
- Businesses are ranked by the year they started, as their own website states it, earliest first. Only businesses rated 4.0 or better from at least 10 Google reviews are listed. The year is the business's own statement and is not checked against a register, and age alone says nothing about quality.
- How many accountants in South Australia did Staying Power compare?
- Staying Power compared 437 accountants in South Australia, with 10,566 Google reviews between them. Of these, 26 meet this list's method. The median rating is 5.0 from a median of 6 reviews.
- Can a business pay to be listed or to rank higher?
- No. Every business is ranked by the same published method, and no business can pay to be listed or to move up.