Updated:
← Back to Top 13 Bookkeepers in Boston Area (New Hampshire Part), NH (2026)Cornerstone Tax Services LLC
Evidence Score 55/100 at 78% evidence coverage 4 of 13 on the Boston area (New Hampshire part) list How the score works
What we could verify
- Registered business?
- Registration found: New Hampshire Secretary of State, status Good Standing, formed 2010
- CPA license or firm permit?
- Not verified
- Publishes prices?
- Other fees only, no monthly price
- Local or remote?
- Not verified
- Software?
- None named on its website
2 of 5 answered from a dated source.
Documents 4 of 5 core services; publishes a starting price; registered entity verified.
Score breakdown
Dark bar: points earned. Grey bar: the weight we could check.
Evidence
| Claim | What the source shows | Source | Points |
|---|---|---|---|
| Business name | Cornerstone Tax Services LLC | home page Oct 7, 2026 | |
| Website | https://cornerstonetaxservices.com/ | home page | |
| Office locality | Dover, NH | home page | |
| Phone | +16033432393 | home page | |
| Offers bookkeeping | Documented: ...our clients money because in some cases all that was needed was a clarification letter. Bookkeeping Bookkeeping We tailor our bookkeeping services to help you manage the day to day... | /services | |
| Monthly bookkeeping | Documented: We tailor our bookkeeping services to help you manage the day to day transactions ... We provide you with a profit and loss every month, so you can see how your business is... | /services | 8 pts (max 8) |
| AP / AR | Documented: We can also pay your bills, perform job costing and send out your invoices. | /services | 4 pts (max 4) |
| Payroll coordination | Documented: ...and send out your invoices. We charge a monthly hourly rate that starts @ $75/hr. Payroll Payroll We offer payroll for your business. Our service includes paying your employees... | /services | 4 pts (max 4) |
| Month-end close + reporting | Documented: ...from your business bank account and categorize each transaction. We provide you with a profit and loss every month, so you can see how your business is progressing. We can also... | /services | 6 pts (max 6) |
| Pricing approach published | Publishes a starting price: "We charge a monthly hourly rate that starts @ $75/hr." | /services | 6 pts (max 6) |
| Onboarding described | Documented: ...work hard to make sure you are taking all of the legal deductions you are entitled to. Our Process We start your tax preparation process with a brief 30 min meeting where we can... | /services Oct 7, 2026 | 4 pts (max 4) |
| Reporting cadence stated | Documented: We provide you with a profit and loss every month, so you can see how your business is progressing. | /services | 4 pts (max 4) |
| Named contact / team | Jennifer, Managing Partner | /about-us | 3 pts (max 3) |
| Communication channel / process | Documented: Contact Us Now! PORTAL Calendar | home page | 3 pts (max 3) |
| Entity found in the state business registry | Business registration found: Cornerstone Tax Services, LLC · NH business ID 631192 · New Hampshire Secretary of State · Good Standing | State business registry Third-party Sep 25, 2026 | 6 pts (max 6) |
| Operating 1+ year (registry formation date) | Formed 2010-05-19 (business creation date of a New Hampshire-formed entity) | State business registry Third-party Sep 25, 2026 | 5 pts (max 5) |
| Working contact route verified | [email protected] (mail server found) | DNS check Third-party Sep 25, 2026 | 2 pts (max 2) |
Checked and not found
- Not documented. Checked 4 pages of the firm's own site on 2026-09-25 (Firm's own website): Catch-up / cleanup (0 pts, max 5); Software supported (0 pts, max 5); What is included / excluded (0 pts, max 5); Privacy / data-handling page (0 pts, max 2).
- Not verified. Searched Xero's advisor directory for 'Cornerstone Tax Services LLC' on 2026-09-25; no listing for this firm (Software advisor directory): Current QuickBooks ProAdvisor or Xero advisor listing (0 pts, max 6).
Searches that find nothing are not a mark against a firm. How we search.
Not verified (not checked yet, so each scores 0 and counts against coverage): Service area; Industries served (documented) (0 pts, max 5); Local / remote model stated (0 pts, max 3); Active CPA firm or individual license (state board) (0 pts, max 8); Bookkeeping designation (AIPB/NACPB) or IRS preparer record (0 pts, max 6).
Check it yourself on the state's own records: New Hampshire Board of Accountancy license search and business registry search.
- Entity found in the state business registry: Business registration found: New Hampshire Secretary of State, QuickStart business search lists Cornerstone Tax Services, LLC (NH business ID 631192), status Good Standing, checked 2026-09-25. It confirms a registered entity, not a license to practice accountancy.
- Operating 1+ year (registry formation date): The registry records 2010-05-19 as the business creation date of a New Hampshire-formed entity.
- Working contact route verified: The email address the firm publishes is on a domain that accepts mail (MX record present).
Data limitations
- 18 of 22 evidenced items come from Cornerstone Tax Services LLC's own website and are labelled self-reported.
- No ratings or review counts are published here. Why.
Is this your firm?
Claim this listing to correct a field with evidence, or report a correction. Claiming confirms ownership only; it does not change the score.