Self-employed10 Schedule C Deductions Most Preparers Miss
The most-overlooked write-offs on Schedule C, with line-by-line examples and IRC citations.
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SCHEDULE C (FORM 1040) · 2024
Profit or Loss From Business
(Sole Proprietorship)
OMB 1545-0074
A · Principal business or professionCONSULTING SERVICES
B · Code541990
C · Business nameRIVERA CONSULTING LLC
D · Employer ID number (EIN)87-2841933
E · Business addressSEE FORM
Part I · Income
1Gross receipts or sales________
2Returns and allowances________
4Cost of goods sold (Part III)________
8Advertising________
Part II · Expenses
9Car and truck expenses________
15Insurance (other than health)________
17Legal and professional services________
22Supplies________
24aTravel________
FORM 1040 · DEPT. OF THE TREASURY · IRS
U.S. Individual Income Tax Return
For the year Jan. 1 – Dec. 31, 2024
OMB No.
1545-0074
Your first name and middle initial · Last name
MARIA L · RIVERA
SSN
•••-••-4471
Filing status
Married filing jointly
Income
1aTotal amount from Form(s) W-2, box 1142,800
2bTaxable interest1,247
3bOrdinary dividends3,892
4bIRA distributions — taxable0
5bPensions and annuities — taxable0
7Capital gain or (loss). Attach Sch. D8,540
8Other income from Schedule 1, line 1024,180
9Add lines 1z, 2b, 3b, 4b, 5b, 6b, 7, and 8180,659
10Adjustments to income from Schedule 16,250
11Subtract line 10 from line 9. AGI174,409
12Standard deduction or itemized (Sch. A)29,200
13Qualified business income deduction4,836
Your signature
Date
1 finding · $8,540.00
12,400
Past Returns Reviewed
Across 50 states · 2024–2026
4,100
Refunds identified
In missed deductions and credits
94%
Findings confirmed by human review
CPA / EA validation rate
50
States supported
Federal + state code coverage
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A real finding
Every deduction comes with the receipts.
Title, severity, audit-risk, dollar impact, IRC citation, plain-English explanation, and the next step. This is what every line in your report looks like.
- Cited to IRC, Pub 17, Pub 334, or Circular 230
- Conservative dollar-impact estimate
- Severity flag: low / medium / high
- Audit-risk flag separately scored
- Recommended action — file Form X, attach Form Y
Sample finding
FND-A4F2-9931High severityLow audit risk
Missed §199A QBI deduction on Schedule C income
CitationIRC § 199A(b)(2)
Estimated impact$3,847.00
Your Schedule C consulting income qualifies for the Qualified Business Income (QBI) deduction, but it was not claimed. For tax year 2024, eligible self-employed taxpayers under the income threshold can deduct up to 20% of qualified business income. Based on the $54,200 of net SE income reported, this is a sizable miss.
Generated by Claude · CPA-reviewed
Outcomes
Real returns. Real refunds. Real reviewers.
Every dollar figure below is a refund our clients recovered after a TaxScan finding was reviewed by a licensed CPA or EA and filed via Form 1040-X.
$8,400recovered
Refund I would have left on the table. Two missed Schedule C deductions and an EITC bracket recalc — TaxScan caught all three on a return TurboTax had already filed.
CP
Connie P.
Independent contractor
Year 2 client · 2024 + 2023 amended
$5,180recovered
Found three deductions my CPA missed across two years of returns. The home-office calculation alone was worth the scan. The IRC citations made it easy for my preparer to amend.
KP
Kevin P.
Small business owner
S-Corp · 2 years scanned
$11,920recovered
Audit-defensible documentation on every finding. That's the part I didn't expect — every dollar comes with the IRC section and the supporting Pub. My EA signed off and we filed in a week.
DS
Daniel S.
Real estate investor
Schedule E · K-1 holdings
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