Averkamp CPA Resource
Self-Employed Tax Guide
Self-employed taxpayers need to plan for both income tax and self-employment tax while keeping records that support deductions and estimated payments.
Self-employed taxpayers generally calculate net earnings, pay self-employment tax, make estimated tax payments when required, and keep business records that support deductions.
What This Resource Covers
Use these points to move from a general tax question to the facts, records, forms, and deadlines that matter.
Compensation base
Owner contributions often depend on W-2 wages, self-employment earnings, or eligible plan compensation.
Plan design
SEP IRA, SIMPLE IRA, solo 401(k), profit sharing, Roth, and after-tax features solve different problems.
Employee impact
Eligibility, testing, employer contributions, and notices can affect the owner strategy.
Payroll timing
Deferrals and some elections generally need to happen before payroll or plan deadlines pass.
Key Rules and Review Areas
These are the technical areas that typically drive the answer for this topic.
- Self-employment tax includes Social Security and Medicare tax on net earnings from self-employment.
- Additional Medicare Tax can apply above income thresholds.
- Estimated payments are often needed for income tax and self-employment tax.
- Retirement plans can reduce taxable income while supporting long-term savings.
- Clean bookkeeping makes deductions and tax projections more reliable.
Forms, IRS Guidance, and Filing Triggers
When a form or IRS publication applies, review the trigger and the supporting records before filing.
| Form or guidance | What it controls | When to review |
|---|---|---|
| IRS Schedule SE | Self-employment tax computation for net earnings from self-employment. | Net self-employment earnings need Social Security and Medicare tax calculation. |
| IRS Publication 334 | Small business income, expenses, records, and self-employed tax concepts. | A sole proprietor or small business needs income, expense, and recordkeeping guidance. |
| IRS Publication 560 | Retirement plan setup, contribution limits, and plan rules for small business owners. | Business retirement plan contributions, limits, or eligibility need modeling. |
| IRS Publication 15 | Employer payroll tax withholding, Social Security wage base, and employment tax rules. | Payroll, W-2 wages, or employment tax rules affect the answer. |
Documents To Gather
Good tax work starts with clean source records. Save these items before the return, election, calculation, or notice response is prepared.
- Monthly profit and loss reports.
- Estimated tax payment confirmations.
- Business mileage and expense support.
- Retirement plan contributions.
- Health insurance and HSA records where applicable.
Quality Checks Before Filing
These checks help prevent avoidable notices, amended returns, duplicate reporting, and unsupported positions.
- Contribution limits are updated for the tax year.
- Eligible compensation is confirmed.
- Employee census and testing needs are reviewed.
- Payroll deposits and plan reports reconcile.
- Roth, pre-tax, and employer amounts are separated.
Practical Planning Workflow
Follow this order so the tax answer is built from the facts rather than from a last-minute filing scramble.
- Create a tax reserve based on projected profit.
- Review quarterly estimated payments.
- Track expenses consistently.
- Model retirement plan options before year-end.
- Evaluate entity structure when profits become consistent.
Common Mistakes To Avoid
These are the issues that most often create tax surprises, penalties, or extra cleanup work.
- Saving only for income tax and forgetting self-employment tax.
- Missing quarterly estimates.
- Using gross receipts instead of net profit for planning.
- Waiting until December to choose a retirement plan.
- Not reconciling bank accounts monthly.
Frequently Asked Questions
Concise answers for the questions business owners, shareholders, partners, and self-employed taxpayers commonly ask before filing or planning.
What is the 2026 Social Security wage base?
IRS Publication 15 lists the 2026 Social Security wage base as $184,500.
What is the self-employment tax net earnings factor?
Schedule SE generally uses 92.35% of net self-employment profit to compute net earnings.
Can self-employed people deduct retirement contributions?
Potentially, yes, depending on the plan type, income, and contribution limits.
Can self-employed health insurance be deducted?
It may be deductible if the taxpayer qualifies and follows the applicable rules.
Related Averkamp CPA Group Services
These service pages are the most relevant next step when the resource applies to your facts.
Official IRS References
Current IRS and government resources should control when there is a discrepancy or when a filing position needs confirmation.
This resource is general information and should not be treated as tax, legal, payroll, employee benefits, or accounting advice for your specific situation. Consult a qualified professional before acting.