• CPA & bookkeeping support
  • QuickBooks setup and cleanup
  • Monthly reporting
  • Tax planning
  • CFO advisory
  • Virtual and local support

Serving

  • Small businesses
  • Nonprofits
  • Real estate investors
  • Restaurants
  • Contractors
  • Healthcare practices
  • Eco & green businesses

Chicago, IL · Quarterly Tax Services

Find Quarterly Tax Services in Chicago, IL

Get help calculating and paying quarterly estimated taxes — for the self-employed, 1099 contractors, and business owners who don't have taxes withheld from a paycheck. Serving Chicago, IL and the surrounding region — Chicago accountants serve professional services, manufacturing, logistics, and the Midwest's largest corporate base.

Why Chicago clients hire quarterly tax

Local context for quarterly tax services in Chicago, IL

Dominant local industries

  • Manufacturing & industrial
  • Logistics & transportation
  • Professional services
  • Financial services & trading
  • Restaurants & hospitality

Illinois tax climate

Illinois has a flat 4.95% personal income tax and a 9.5% combined corporate income tax (including the personal property replacement tax). Chicago adds local employer-side payroll considerations. The state's PTET election is commonly used for partnerships and S-corps.

Key local deadline

Mar 15

IL pass-through entity tax (PTET) and partnership / S-corp (IL-1065 / IL-1120-ST) returns due.

When to hire

  • You're self-employed, freelance, or a 1099 contractor with no tax withholding
  • You underpaid last year and got hit with an estimated tax penalty
  • Your income varies significantly from quarter to quarter
  • You started a business or side income and aren't sure how much to set aside
  • You want your estimates recalculated as the year's income changes

What they do

  • Calculate quarterly estimated tax payments based on projected annual income
  • Recalculate estimates mid-year as actual income comes in
  • File federal (Form 1040-ES) and state estimated payment vouchers
  • Advise on how much to set aside from each payment received
  • Help avoid or minimize underpayment penalties

Typical fees

What it costs

Low end

$300

per year

High end

$1,200

per year

Notes

Basic quarterly calculation service: $300–$600/yr (four estimates). Bundled with bookkeeping or full tax planning: $600–$1,200/yr, often included in a broader monthly retainer.

Compare

Managed Quarterly Estimates vs Self-Calculated Estimates

FactorManaged Quarterly EstimatesSelf-Calculated Estimates
AccuracyAdjusted as income actually comes inOften a rough guess, set once
Penalty riskMinimized via safe harbor calculationsHigher if income is underestimated
Deadline trackingReminders sent proactivelyYour responsibility to remember
State complianceBoth federal and state handledState estimates often forgotten
Typical annual cost$300–$1,200$0, but higher penalty risk

Questions to ask

  1. How do you calculate my quarterly estimate — safe harbor or projected income?
  2. Will you adjust my estimates if my income changes mid-year?
  3. Do you send reminders before each quarterly deadline?
  4. How do you handle both federal and state estimated payments?
  5. What percentage of income should I be setting aside?
  6. Can you review last year's return to see if I underpaid?

Red flags

  • Doesn't mention the safe harbor rule (paying 100%–110% of last year's tax)
  • Sets a flat estimate and never revisits it during the year
  • No reminder system — you're expected to remember four separate deadlines
  • Doesn't ask about income changes mid-year
  • Ignores state estimated tax obligations entirely

Documents to prepare

  • Prior-year tax return
  • Year-to-date income and expense records
  • 1099s received so far this year, if applicable
  • Any withholding from a W-2 job, if you also have one
  • Bank statements showing income deposits

Verified directory

Quarterly Tax Services serving Chicago, IL

As quarterly tax in Chicago claim profiles, they will appear here. Be among the first listed.

FAQ

Quarterly Tax Services in Chicago — common questions

How much does quarterly tax services cost in Chicago?+

Chicago quarterly tax services typically charge $300–$1,200 per year. Basic quarterly calculation service: $300–$600/yr (four estimates). Bundled with bookkeeping or full tax planning: $600–$1,200/yr, often included in a broader monthly retainer.

Do I need a Illinois-licensed CPA to work with a quarterly tax services in Chicago?+

For Illinois state filings, your preparer should hold a CPA license from the Illinois Board of Accountancy or be an Enrolled Agent. Out-of-state pros can prepare your federal return but should not sign as a CPA on Illinois returns. Illinois has a flat 4.95% personal income tax and a 9.5% combined corporate income tax (including the personal property replacement tax).

When are quarterly estimated taxes due?+

Generally April 15, June 15, September 15, and January 15 of the following year, though exact dates shift slightly when they fall on a weekend or holiday.

How do I know how much to pay each quarter?+

A common approach is the safe harbor rule: pay at least 100% of last year's total tax (110% if your prior-year income was over $150,000), split into four equal payments, which protects you from underpayment penalties regardless of this year's actual result.

What happens if I miss a quarterly payment?+

The IRS charges an underpayment penalty calculated on a quarter-by-quarter basis, similar to interest. Paying late but within the same year still reduces the penalty compared to not paying at all until filing.

Do I need to pay state quarterly taxes too?+

Most states with income tax require their own separate quarterly estimated payments, calculated independently from your federal estimate — an easy thing to forget if you're only tracking one.

Can my estimated payments change during the year?+

Yes, and they should if your income shifts meaningfully. A service that recalculates each quarter based on actual year-to-date income avoids both overpaying (tying up cash) and underpaying (risking penalties).

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