Skip to main content
Diana Stelmakh Tax Services LLC
Home Services Contact
ENRUES
← Back to services

Services

Form 1040 tax return preparation

Form 1040 preparation covering personal income and applicable deductions and credits.

Next step

Describe what you have: W-2, 1099, Schedule C, income outside the U.S., foreign accounts, an IRS letter, or another question. We will then suggest the next step.

Start with a short message

Build my document list Calculate fee

Who this service is for

For clients who need Form 1040 preparation with wages, interest, dividends, or retirement distributions. Household circumstances and applicable credits are reviewed as part of the return.

Common situations

  • Employee income reported on W-2 forms.
  • A household with children or other dependents.
  • Interest, dividends, retirement distributions, or other additional income forms.
  • Marketplace health insurance and Form 1095-A.

What to prepare

The general checklist covers basic documents and supporting records. This page lists only the documents relevant to this service.

  • W-2s and other income forms received for the year.
  • 1099-INT, 1099-DIV, retirement forms, and other tax statements when applicable.
  • Records related to children or dependents and documents supporting credits or deductions that apply.
  • Form 1095-A if health insurance was obtained through the Marketplace.

General document checklist

What we review

We review the income documents together and make sure household facts and other information support the items reported on the return. If the same return also includes self-employment, foreign income, or multiple states, those areas are added to the overall filing with their own review.

Helpful resources

W-2, 1099, and Schedule C: what is the difference?

These forms may look similar to a client, but they represent different types of income and require different tax treatment.

Children, dependents, and tax credits: documents that may be needed

If children, dependents, or credits are claimed, the facts of the year and supporting records should be reviewed before filing.

Form 1095-A and Marketplace health insurance

If you had health insurance through the Marketplace during the year, Form 1095-A is important for reviewing the return. Form 8962 is used when the Premium Tax Credit must be calculated or advance credit payments must be reconciled.

More Form 1040 resources

Tax filing extension: Form 4868

Form 4868 can provide additional time to file an individual federal tax return, but it does not extend the time to pay tax.

Rental income and Schedule E: records to prepare

Rental real estate usually requires separate records for income, expenses, depreciation, and any personal use. Collecting them before tax preparation makes the review more reliable.

Investment income, 1099 forms, and capital gains

Interest, dividends, and investment sales can arrive on several tax forms. Keep those forms together with cost-basis and transaction records so the return can be reviewed consistently.

Itemized deductions and Schedule A: records to prepare

Itemizing is not automatically better than taking the standard deduction. Schedule A is used when eligible itemized deductions are relevant, so the useful first step is to collect the records that allow both approaches to be compared.

Schedule K-1: what to provide with your tax return

Schedule K-1 can come from a partnership, S corporation, estate, or trust. The entity type matters because the boxes, codes, attached statements, and tax treatment are not identical.

Pensions, IRAs, and Form 1099-R: records to prepare

Retirement distributions and IRA transactions can look similar on an account statement but receive different tax treatment. Form 1099-R, rollover records, and IRA basis history help determine the correct reporting.

Form 1098-T and education tax credits

Form 1098-T is a useful starting point for education expenses, but it does not by itself determine the credit. Actual qualified expenses paid, scholarships, and student status also matter.

HSA: Form 8889, 1099-SA, and 5498-SA

A Health Savings Account can affect a tax return even when no money was withdrawn. Employer contributions, personal contributions, and HSA distributions may require Form 8889 and supporting records.

Cryptocurrency and other digital assets: records to prepare

Transactions involving cryptocurrency, stablecoins, and other digital assets can create taxable income or capital gain or loss. Tax preparation often requires transaction history, not just year-end totals.

How it works

The workflow and secure document transfer are described in “How it works.” View the workflow

Documents are transmitted only through a secure method after the initial contact.

Portal information

Common questions

Can W-2 and 1099 income be filed together?

Yes. W-2, 1099, and other income forms are reported within one individual return when they belong to the same taxpayer.

How do I choose a filing status?

Filing status depends on marital status, dependents, and the facts of the year. If there is uncertainty, it should be checked before calculating the return.

What if I had Marketplace health insurance?

Form 1095-A is required. A return with Marketplace coverage can be incorrect without it, especially if the advance premium tax credit was received.

Related services

U.S. tax return preparation

Self-employment / 1099 tax preparation

© 2026 Diana Stelmakh Tax Services LLC

Information on this website is general in nature and is not legal or tax advice. Results depend on your facts and documents.