Copernicus Agency logo

Copernicus Agency

Accountant · Amherst Town, MA · reviewed since 2017

How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 69%70+48.5Reliability 31%64+19.7Momentum penalty63−3.7Experts Score= 64Not enough data for value, replies to reviews; its weight is shared by the others.Grade B: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.64SCORE
BGradeLetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20.
#75 of 89 accountantsPosition by Experts Score among all companies we track in this category. · better than 16%
4.7 ★★★★★ 25 Google reviews · 2 photos
92%five-star reviews
4.20★last 12 monthsAverage stars on reviews from the last 12 months only.
5%1–2★, last 20 reviewsShare of 1–2★ reviews in the last 24 months — or the 20 newest reviews when the company had fewer than 20 in that time.
4%reviews answered by the owner
May 2026latest review

Copernicus Agency at a glance

Copernicus Agency receives a 4.7-star rating from 25 reviews, with clients frequently citing professional tax preparation, efficient handling of business and private matters, and reasonable pricing. Positive feedback highlights quick responsiveness, thoroughness, and long-term client retention. However, low-star reviews describe negative experiences involving ignored phone calls and a reported physical altercation during a product delivery.

  • Google rating: 4.7 out of 5 from 25 reviews (92% five-star).
  • Reviews on this page: 25 Google reviews (18 with written comments).
  • Owner responses: the business replied to 4% of reviews.
  • Most recent review: May 27, 2026.
  • Service: Accountant serving Amherst Town, Massachusetts.

Data from Google, last updated November 2, 2026.

Score profile vs other accountants

Score per factor (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: satisfaction and reliability; weakest: momentum.

Satisfaction70Reliability64Craft & service–Value–Momentum63Replies to reviews–Satisfaction: 70 (median 86)Reliability: 64 (median 81)Momentum: 63 (median 100)
Copernicus AgencyAccountants median0 = centre, 100 = best
SatisfactionSatisfaction · 54% of the scoreRecency-weighted star average (2-year half-life), shrunk toward the category mean by review volume; the company’s own lifetime average as the prior; absolute: 4.0★ = 0, 5★ = 100.Copernicus Agency: 70/100 on this factor. Category median: 86.B
70
ReliabilityReliability · 24% of the scoreHow rarely jobs go badly: share of 1–2★ reviews — 60% the last 24 months (or the 20 newest if fewer), 40% all-time; 0% = 100, 15%+ = 0; the category percentile can only raise it.Copernicus Agency: 64/100 on this factor. Category median: 81.B
64
Craft & serviceCraft & service · penalty only, up to −10 pointsGoogle review highlights: Quality, Professionalism, Responsiveness, Punctuality — how rarely reviewers flag them as a negative, per review since highlights began; 0% = 100, 5%+ = 0. Subtracted from the score (up to −10), never averaged in — clean highlights are the norm, not a bonus.Not enough reviews for this factor yet. Category median: 98.–
–
ValueValue · 14% of the scoreCustomers’ own price verdicts (Great / Reasonable vs Overpriced) and Value highlights; 65% absolute (all “reasonable” ≈ 80, “great” = 100), the category percentile can only raise it.Not enough reviews for this factor yet. Category median: 93.–
–
MomentumMomentum · penalty only, up to −10 pointsPenalises only a real slide: last-12-month average below lifetime (−0.5★ = 0). Still 4.8★+ over the last year, or steady/improving = 100. Subtracted from the score (up to −10), never averaged in.Copernicus Agency: 63/100 on this factor. Category median: 100.B
63
Replies to reviewsReplies to reviews · 7% of the scoreHow often the owner publicly replies to reviews under 5★ (1–4★). Needs 3+ such reviews, otherwise not counted; 65% absolute (80%+ replied = 100), the category percentile can only raise it.Not enough reviews for this factor yet. Category median: 74.–
–

Bar = this company · dark tick = category median.

Star ratings

25 Google reviews we collected

  • 5 stars2392%
  • 4 stars00%
  • 3 stars00%
  • 2 stars00%
  • 1 star28%

Praise vs complaints

Phrases our text analysis found in 18 written reviews

  • Praise2492%
  • Complaints28%

Topic share

How often each topic comes up in the written reviews

  • Staff & attitude1038%
  • Speed & response623%
  • Would recommend519%
  • Quality & results312%
  • Communication14%
  • Price & value14%

What customers talk about

We read 18 written reviews and marked every phrase about these topics. The same colors are highlighted in the reviews.

  • “Very professional, quick to respond, and knew exactly what they were doing.”
  • “He’s super efficient and knowledgeable in his craft and I highly recommend to anyone looking to get their taxes done easily.”
  • “I would highly recommend Copernicus Agency for taxes and legal advice.”
  • “He’s thorough and I leave feeling refreshed that another year of tax returns have been accomplished.”
  • “He dos this professionally, friendly and very reasonable cost.”

praise complaint · found by our text analysis, Google review wording unchanged.

Reviews for your job

Customers hired Copernicus Agency for 1 kind of job. Pick one to see what they paid and said.

Recent reviews

Chris2 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 5 months ago★

Called with a simple straightforward question about why they are called the Copernicus agency. Ignored then hung up on. Furious.

emanuel5 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 7 months ago★★★★★

⭐⭐⭐⭐⭐ Greg handled my business taxes and made it way easier than I expected. Very professional, quick to respond, and knew exactly what they were doing. No confusion, no runaround just solid service. I’ll be sticking with him till I grow old.

Reasonable priceBusiness tax return preparationBusiness tax planningIndividual income tax return preparation
Juan3 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · 9 months ago★★★★★

I have been getting my taxes done with Copernicus for a few years and every year it’s a smooth and professional process. He’s super efficient and knowledgeable in his craft and I highly recommend to anyone looking to get their taxes done easily.

Charles6 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★

I’ve been a very happy client of Greg for 10+ years. I used another accountant for several years before being referred to Greg. Every year the appointments have been easy to set up via an online scheduling platform he uses. He’s thorough and I leave feeling refreshed that another year of tax returns have been…

A13 reviewsTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★

Cupernicus Tax services is the best!!! Greg is awesome at what he does and super cordial, just an all around great guy!! I'm definitely a lifetime customer!

Barbara1 reviewTotal number of Google reviews this person has written across all businesses on Google Maps (not just this one). More reviews usually means a more experienced, trustworthy reviewer. · a year ago★★★★★

Greg is very knowledgeable and professional. I would highly recommend Copernicus Agency for taxes and legal advice.

Photos

Customer reviews

4.7 ★★★★★ 25 reviews on Google · rating breakdown

Reviews from Google, shown as published (original wording, unedited).

Jobs customers hired them for — from Google's service tags and the review text
Team members customers mention
Filter by topic — each topic is highlighted in the reviews in the same color
Chris Watkins2 reviewsTotal number of Google reviews Chris has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Called with a simple straightforward question about why they are called the Copernicus agency. Ignored then hung up on. Furious.

Response from the owner · 4 months ago

We received your call. You called a professional accounting and tax office — in business for 28 years — to ask why we are named Copernicus. You were asked five times 'How can I help you?' and five times you ignored the question. We then did what any professional office does with non-business calls: we ended it. We receive hundreds of spam calls daily and cannot afford to engage with every curious caller who has nothing better to do. We did not yell, we did not insult you, we simply hung up — which, frankly, was more courtesy than the call deserved. If you ever have a real tax question, we'll be happy to help. Until then, perhaps Google is a better place to look up the history of Nicolaus Copernicus

Arni Le'BeatLocal Guide · 23 reviewsTotal number of Google reviews Arni has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

One if the best in NE

  • Price assessment: Great price
  • Services: Business tax planning
emanuel parrilla5 reviewsTotal number of Google reviews emanuel has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

⭐⭐⭐⭐⭐ Greg handled my business taxes and made it way easier than I expected. Very professional, quick to respond, and knew exactly what they were doing. No confusion, no runaround just solid service. I’ll be sticking with him till I grow old.

  • Price assessment: Reasonable price
  • Services: Business tax return preparation, Business tax planning, Individual income tax return preparation
J SLocal Guide · 49 reviewsTotal number of Google reviews J has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

They've been doing my taxes for years. Quick and efficient!!

Juan Ortiz3 reviewsTotal number of Google reviews Juan has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

I have been getting my taxes done with Copernicus for a few years and every year it’s a smooth and professional process. He’s super efficient and knowledgeable in his craft and I highly recommend to anyone looking to get their taxes done easily.

Charles Monfett6 reviewsTotal number of Google reviews Charles has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

I’ve been a very happy client of Greg for 10+ years. I used another accountant for several years before being referred to Greg. Every year the appointments have been easy to set up via an online scheduling platform he uses. He’s thorough and I leave feeling refreshed that another year of tax returns have been accomplished. He dos this professionally, friendly and very reasonable cost. Thanks Greg!

A Lucia13 reviewsTotal number of Google reviews A has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Cupernicus Tax services is the best!!! Greg is awesome at what he does and super cordial, just an all around great guy!! I'm definitely a lifetime customer!

Barbara Wysocka1 reviewTotal number of Google reviews Barbara has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Greg is very knowledgeable and professional. I would highly recommend Copernicus Agency for taxes and legal advice.

TLocal Guide · 15 reviewsTotal number of Google reviews T has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

Gregory always goes above and beyond for us. I would not take my taxes anywhere else!

Josef Karlo Uy7 reviewsTotal number of Google reviews Josef has written across all businesses on Google Maps, not just this one.
Review from Google · view on Google
★★★★★

My go to place for filing my tax. Greg is the best tax accountant that i know. He is fantastic and will definitely help you. I absolutely recommend this to anyone looking to file their tax.

Copernicus Agency on Google Maps →

Business details