63/100LFR Score
Ranked #1 because of its Google rating and practice area focus: 4.3★ from 5,753 Google reviews, listed on Google as “Tax attorney”.
Tax Lawyers in Ontario, CA: 2026 rankings
143 tax lawyers ranked by LFR ScoreUpdated 0 paid placements in this rankingHow we rank →
The short answer
- 1
Highest LFR Score in Ontario: Optima Tax Relief, LFR Score 63/100; 4.3★ from 5,753 Google reviews; open Saturdays until 12 PM.
- 2
Open 24 hours (per Google): Choice Tax Relief, posts 24/7 hours; ranked #2 of 143.
- 6
Most-reviewed: Alleviate Tax Relief Services, 1,384 Google reviews at 4.6★, the most of 143 ranked after Optima Tax Relief; ranked #6.
Rankings can't be bought. Lawyers can't pay to change their rank or score. How we rank
143 Ontario tax lawyers are ranked here by LFR Score, from nine published factors. 11 are open 24/7, 48 open Saturdays and 25 open Sundays, based on posted hours. The median Google rating is 4.9★ across 143 rated law firms.
Top 10 tax lawyers in Ontario at a glance
Ranked by our published LFR Score from public data, not by payment; a rank is not an endorsement or a prediction of results.
| Rank | Business | LFR Score | Google rating | Based in | Hours | Notable for |
|---|---|---|---|---|---|---|
| 1 | Optima Tax Relief | 63 | 4.3★ (5,753) | Santa Ana, 28 mi away | Sat | Top score |
| 2 | Choice Tax Relief | 63 | 4.8★ (154) | Los Angeles, 35 mi away | Open 24 hrs (Google) | Open 24 hours |
| 3 | Mike Habib, EA | 62 | 4.9★ (66) | Whittier, 23 mi away | Sat · Sun · Evenings | — |
| 4 | Nationwide Tax Advocates | 62 | 4.9★ (232) | Anaheim, 15 mi away | — | — |
| 5 | J. David Tax Law LLC | 61 | 5.0★ (27) | Irvine, 29 mi away | Open 24 hrs (Google) | — |
| 6 | Alleviate Tax Relief Services | 61 | 4.6★ (1,384) | Irvine, 29 mi away | — | Most reviews |
| 7 | Landmark Tax Group | 60 | 4.9★ (45) | Irvine, 29 mi away | Sat · Sun · Evenings | — |
| 8 | Rush Tax Resolution | 60 | 4.7★ (222) | Los Angeles, 35 mi away | Sat · Evenings | — |
| 9 | Nelson & Associates Tax Resolution | 60 | 5.0★ (102) | Long Beach, 34 mi away | Sat | — |
| 10 | SWITCH: CPA & Tax Attorney Newport Beach | 60 | 5.0★ (12) | Newport Beach, 30 mi away | Open 24 hrs (Google) | — |
All 143 tax lawyers in Ontario, in rank order
Ordered by LFR Score, a 0–100 score from nine published factors. Paid placement never changes the order.
Ranked by our published LFR Score from public data, not by payment; a rank is not an endorsement or a prediction of results.
Scores below: based on 7 of 9 factors; bar status and recency not yet collected. Hatched segments mark factors we don't have yet.
Based in Los Angeles, 35 mi away
63/100LFR ScoreRanked #2 because of its Google rating and practice area focus: 4.8★ from 154 Google reviews, listed on Google as “Tax attorney”.
Based in Whittier, 23 mi away
62/100LFR ScoreRanked #3 because of its Google rating and practice area focus: 4.9★ from 66 Google reviews, listed on Google as “Tax attorney”.
Based in Anaheim, 15 mi away
62/100LFR ScoreRanked #4 because of its Google rating and practice area focus: 4.9★ from 232 Google reviews, listed on Google as “Tax attorney”.
Based in Irvine, 29 mi away
61/100LFR ScoreRanked #5 because of its Google rating and practice area focus: 5.0★ from 27 Google reviews, listed on Google as “Tax attorney”.
Based in Irvine, 29 mi away
61/100LFR ScoreRanked #6 because of its Google rating and practice area focus: 4.6★ from 1,384 Google reviews, listed on Google as “Tax attorney”.
Based in Irvine, 29 mi away
60/100LFR ScoreRanked #7 because of its Google rating and practice area focus: 4.9★ from 45 Google reviews, listed on Google as “Tax attorney”.
Based in Los Angeles, 35 mi away
60/100LFR ScoreRanked #8 because of its Google rating and practice area focus: 4.7★ from 222 Google reviews, listed on Google as “Tax attorney”.
Based in Long Beach, 34 mi away
60/100LFR ScoreRanked #9 because of its Google rating and practice area focus: 5.0★ from 102 Google reviews, listed on Google as “Tax attorney”.
Based in Newport Beach, 30 mi away
60/100LFR ScoreRanked #10 because of its Google rating and practice area focus: 5.0★ from 12 Google reviews, listed on Google as “Tax attorney”.
Based in Santa Ana, 30 mi away
60/100LFR ScoreRanked #11 because of its Google rating and practice area focus: 4.8★ from 93 Google reviews, listed on Google as “Tax attorney”.
#12 Ideal Tax
Based in Irvine, 27 mi away
59/100LFR ScoreRanked #12 because of its Google rating and practice area focus: 4.4★ from 878 Google reviews, listed on Google as “Tax attorney”.
#13 세무회계태양
Based in Irvine, 27 mi away
59/100LFR ScoreRanked #13 because of its Google rating and practice area focus: 4.9★ from 106 Google reviews, listed on Google as “Tax attorney”.
Based in Tustin, 24 mi away
59/100LFR ScoreRanked #14 because of its Google rating and practice area focus: 4.2★ from 24 Google reviews, listed on Google as “Tax attorney”.
#15 IRS Audit Group
Based in Newport Beach, 34 mi away
59/100LFR ScoreRanked #15 because of its Google rating and practice area focus: 5.0★ from 24 Google reviews, listed on Google as “Tax attorney”.
Based in Irvine, 29 mi away
58/100LFR ScoreRanked #16 because of its Google rating and practice area focus: 4.7★ from 164 Google reviews, listed on Google as “Tax attorney”.
#17 D Tax LLC
Based in Irvine, 26 mi away
58/100LFR ScoreRanked #17 because of its Google rating and practice area focus: 4.5★ from 17 Google reviews, listed on Google as “Tax attorney”.
Based in Irvine, 25 mi away
58/100LFR ScoreRanked #18 because of its Google rating and practice area focus: 5.0★ from 24 Google reviews, listed on Google as “Tax attorney”.
Based in Pasadena, 28 mi away
58/100LFR ScoreRanked #19 because of its Google rating and practice area focus: 5.0★ from 25 Google reviews, listed on Google as “Tax attorney”.
Based in Santa Ana, 27 mi away
58/100LFR ScoreRanked #20 because of its Google rating and practice area focus: 5.0★ from 23 Google reviews, listed on Google as “Tax attorney”.
Based in Los Angeles, 38 mi away
58/100LFR ScoreRanked #21 because of its Google rating and practice area focus: 4.8★ from 26 Google reviews, listed on Google as “Tax attorney”.
Based in Irvine, 29 mi away
58/100LFR ScoreRanked #22 because of its Google rating and practice area focus: 5.0★ from 3 Google reviews, listed on Google as “Tax attorney”.
Based in Anaheim, 25 mi away
58/100LFR ScoreRanked #23 because of its Google rating and practice area focus: 5.0★ from 15 Google reviews, listed on Google as “Tax attorney”.
Based in Newport Beach, 34 mi away
58/100LFR ScoreRanked #24 because of its Google rating and practice area focus: 4.8★ from 45 Google reviews, listed on Google as “Tax attorney”.
Based in Irvine, 29 mi away
57/100LFR ScoreRanked #25 because of its Google rating and practice area focus: 5.0★ from 49 Google reviews, listed on Google as “Tax attorney”.
Tax lawyers ranked #26 to #50
#1 to #25 are shown in full above. Here are #26 to #50, in LFR Score order; each links to its profile. We publish the top 50 of 143 ranked tax lawyers here; the rest are on their profiles.
Also serving Ontario
20 more tax lawyers within 40 mi that we can't rank yet: too few reviews, or a practice area we couldn't confirm. Listed A to Z.
How we ranked Ontario tax lawyers
We scored 143 Ontario tax lawyers on nine factors, weighted as shown. A law firm is ranked when its practice area is confirmed and it has 3 or more Google reviews or a claimed profile. A law firm with no Google reviews scores zero on rating, review volume and recency. Other unknown factors are left out, not counted as zero. Scores last refreshed November 9, 2026.
Paid placement never changes a rank or score. Attorney advertising businesses are paid, labelled, limited to 3 and shown above the ranking, outside it.
| Factor | Weight | Computed from | In Ontario data |
|---|---|---|---|
| Reputation | 25% | Google star rating, adjusted for how many reviews back it | Measured |
| Bar status | 10% | An active bar or law society record matched to a lawyer at the firm (not measured until a record source is loaded) | Not yet collected |
| Review volume | 10% | Number of Google reviews, compared with the most-reviewed firm on the list | Measured |
| Recency | 10% | Share of reviews from the last 12 months | Not yet collected |
| Availability | 5% | Weekly office hours, Saturday, Sunday, and phones answered 24/7 | Measured |
| Practice focus | 15% | How clearly the firm practises this area (its Google category and name) | Measured |
| Proximity | 5% | An office in the city scores highest, less the farther away it is | Measured |
| Claimed profile | 10% | The firm has claimed its Law Firms Ranked profile (free and paid earn the same) | Measured |
| Law Firms Ranked reviews | 10% | Verified client reviews collected by Law Firms Ranked: their rating and how many there are | Measured |
How to choose a tax lawyer
- Check the lawyer’s status and any public discipline in the state bar or law society directory.
- Ask how many tax law matters the lawyer handles each year, and who at the firm will do the work.
- Get the fee arrangement in writing: hourly, flat or contingency, and which costs are charged on top.
- Ask how and how often the firm will update you, and how fast it answers calls and emails.
- Read recent reviews for how the firm communicated and billed, not only for outcomes.
- Ask whether the lawyer handles audits, collections and Tax Court, or only planning.
- Meet more than one firm; many offer a short first consultation, sometimes free.
Questions to ask a tax lawyer
- How would you approach a matter like mine, and what are the realistic options?
- How do you charge, and what will the total likely cost?
- Who will be my main contact, and how quickly do you reply?
- Do you handle audits and appeals yourself?
- Is my situation civil, or could it become criminal?
- Is there any conflict of interest that would stop you representing me?
Terms explained
- Contingency fee
- A fee that is a share of the money recovered, paid only if there is a recovery. Common in injury cases; not allowed for criminal defense or for securing a divorce.
- Retainer
- Money paid up front and held in a trust account, which the lawyer draws on as fees are earned.
- Flat fee
- One set price for a defined piece of work, such as a will or an uncontested matter.
- Limited-scope representation
- Paying a lawyer for part of a matter only, such as reviewing documents or coaching for one hearing (also called unbundled services).
- Statute of limitations
- The deadline to file a lawsuit or charge. It differs by state or province and by type of claim.
- Good standing
- A lawyer’s status as active and eligible to practise with a state bar or law society.
- Law society
- The body that licenses and disciplines lawyers in a Canadian province or territory.
- Board certification
- Recognition in a field of law by a state program or an organisation accredited for that purpose. Lawyers may only claim it when they hold it, naming the certifying body.
- Attorney–client privilege
- The rule that keeps confidential communications between a client and lawyer, made for legal advice, out of court.
- Conflict check
- The search a firm runs before taking a matter to make sure it does not represent someone on the other side.
- Pro bono
- Legal work done for free, usually for people who cannot afford a lawyer.
- Legal aid
- Publicly funded legal help for people with low incomes, through legal aid offices, public defenders or provincial legal aid plans.
Tax lawyers in Ontario: frequently asked questions
Which tax lawyer has the highest LFR Score in Ontario?
By LFR Score, the highest-ranked tax lawyer in Ontario, CA is Optima Tax Relief with an LFR Score of 63/100. It has 4.3★ from 5,753 Google reviews. It is open Saturdays until 12 PM. Choice Tax Relief (#2) and Mike Habib, EA (#3) follow. We ranked 143 tax lawyers on nine factors, last updated November 9, 2026.
How many tax lawyers are there in Ontario?
LawFirmsRanked ranks 143 tax lawyers serving Ontario, CA. Another 20 within 40 mi are listed but not ranked yet. Counts are as of November 2026.
Which tax lawyers in Ontario are open 24/7?
11 ranked tax lawyers in Ontario post 24/7 hours. The highest-ranked are Choice Tax Relief (#2), J. David Tax Law LLC (#5) and SWITCH: CPA & Tax Attorney Newport Beach (#10). Hours come from each law firm's Google listing as of November 2026, so call to confirm.
Which tax lawyers in Ontario work on weekends?
48 of 143 ranked tax lawyers post Saturday hours and 25 post Sunday hours. The highest-ranked open Saturdays are Optima Tax Relief (#1), Choice Tax Relief (#2) and Mike Habib, EA (#3). Posted hours are office hours; many firms meet clients by appointment outside them.
What Google rating do Ontario tax lawyers have?
The median Google rating among 143 rated tax lawyers in Ontario is 4.9★, with a median of 17 reviews. Optima Tax Relief has the most, 5,753 reviews, and ranks #1. We adjust ratings for review count, so a few five-star reviews cannot top the list.
How does LawFirmsRanked rank tax lawyers?
Each tax lawyer gets a 0–100 LFR Score from nine published factors, led by reputation (25%), practice focus (15%), review volume (10%) and recency (10%). A law firm with no Google reviews scores zero on rating, review volume and recency; other factors we cannot measure are left out. Only law firms with a confirmed practice area and 3 or more reviews, or a claimed profile, are ranked.
Do tax lawyers outside Ontario count in this ranking?
Yes, if they are within 40 mi of the Ontario city center, our service radius for tax lawyers. Each listing shows where the law firm is based and how far away it is. Proximity is 5% of the LFR Score, so a nearby law firm gets a small edge.
Can tax lawyers pay to rank higher on LawFirmsRanked?
No. The LFR Score never reads payment status, and this ranking has 0 paid placements. Up to 3 Featured law firms may appear above the list, labelled Attorney advertising and showing their honest rank.
How do tax lawyers in Ontario, CA charge?
Tax lawyers usually bill hourly; some offer flat fees for defined work such as an offer in compromise. Lawyers using Clio billed an average of $446 an hour in this area (Clio Legal Trends data, October 2026; all areas $362). Ask for the fee arrangement in writing before you agree.
Should I hire a tax lawyer, a CPA or an enrolled agent?
All three can represent taxpayers before the IRS (Treasury Circular 230). A tax lawyer adds legal privilege for advice and can represent you in Tax Court and in criminal tax matters. This is general information, not legal advice.
How is this list of tax lawyers in Ontario, CA ranked?
By LFR Score only, from public data on reviews, practice focus, office location and hours. Firms labelled “Attorney advertising” paid for that placement; payment never changes a rank, and a rank is not an endorsement.
Does a lawyer need an office in Ontario?
No, but the lawyer must be licensed in your state (or, for federal matters such as immigration, in some state). A local office makes meetings and court appearances easier, so proximity is one of our factors.
Update log for Ontario
- November 2026: LFR Scores recalculated for 143 tax lawyers serving Ontario.
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