Business Tax Preparation

S-Corp, C-Corp, and partnership returns, prepared from books that actually reconcile.

Form 1120-S, 1120, and 1065 preparation built on reconciled bookkeeping, not a shoebox of receipts in April. Flat-rate pricing and a written accuracy guarantee on every return.

Form 1120-S, Filing Status
Business Tax Preparation

Corporate, partnership, and S-Corp returns built on clean books, not guesswork

A business return is only as accurate as the bookkeeping behind it. Hasco Tax Advisors prepares Form 1120-S for S-Corporations, Form 1065 for partnerships and multi-member LLCs, and Form 1120 for C-Corporations, with every return reconciled against actual books before a single number is filed. What gets reported to the IRS matches what actually happened in your business all year, not just what fits neatly on a form in April.

You work with one advisor who understands your entity type, your industry, and your financial history from engagement to engagement. Pricing is flat-rate and quoted before work begins, and every return comes with a written accuracy guarantee.

By Entity Type

The right return for how your business is actually structured

S-Corporation (Form 1120-S)

S-Corp returns require reconciling reasonable officer compensation against payroll records, preparing Schedule K-1s for each shareholder, and tracking basis correctly year over year. We review whether your S-Corp election is still producing real tax savings, since the benefit only holds up when the reasonable-salary requirement is met and payroll is actually run correctly.

Partnership & Multi-Member LLC (Form 1065)

Partnership returns hinge on getting capital accounts, guaranteed payments, and profit and loss allocations right for every partner. We prepare Schedule K-1s for each member and reconcile Schedule L, M-1, and M-2 so the balance sheet, the books, and the return all agree with each other.

C-Corporation (Form 1120)

C-Corp returns involve their own set of considerations: corporate tax rate calculations, potential double taxation on distributions, and corporate-level estimated tax payments. We prepare the return alongside a clear picture of how corporate profit flows through to you personally, so there are no surprises at the shareholder level.

Single-Member LLC (Schedule C)

If your LLC has not elected S-Corp or C-Corp taxation, it is treated as a disregarded entity and reported directly on your personal Form 1040 through Schedule C. We prepare this alongside your individual return so both are handled as one coordinated filing.

One quote, no surprises once work begins
Business return pricing depends on entity type, transaction volume, and whether bookkeeping is included. You get an exact flat-rate number during your free consultation.
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What's Included

Every business return is reconciled, not just filled in

Books Reconciled First

Your return is prepared from reconciled books, not a shoebox of receipts handed over in March. Every account is checked against actual statements before the return is built.

Reasonable Salary Review

For S-Corp owners, we review whether officer compensation is set correctly, protecting the tax savings the election was meant to create in the first place.

Schedule K-1 Preparation

Every shareholder or partner receives a correctly prepared K-1, with allocations reconciled to your books rather than approximated at year-end.

Deduction Review

A full pass through your books for legitimate business deductions, equipment, software, professional fees, vehicle use, home office, and more.

How It Works

From books to filed return, without the back-and-forth

1
Free Consultation
Tell us your entity type and current bookkeeping situation. You get a clear price quote before anything is signed.
2
Books Reviewed
If bookkeeping is included, your books are reconciled first. If not, we work from what you provide and flag anything that needs cleanup.
3
Return Prepared
Your return is built from reconciled numbers and reviewed line by line before it reaches you for approval.
4
Approval & E-File
Once approved, your return is e-filed directly with the IRS, with confirmation sent the moment it is accepted.
Frequently Asked Questions

Business tax preparation, answered directly

An LLC is a legal structure; S-Corp is a tax election. A single-member LLC is taxed as a sole proprietorship by default. Electing S-Corp status changes how you pay yourself, splitting income into salary and distributions, which can reduce self-employment tax once your profit clears a meaningful threshold, typically in the $45,000 to $60,000 range.
Both are available. Many clients have their monthly bookkeeping and annual tax return handled by the same advisor, which means the numbers on your return always match your actual books. If you already have a bookkeeper, we can also prepare your return from books you provide.
This is common, and it is handled through a catch-up bookkeeping engagement before the return is prepared. Trying to file from unreconciled books usually means missed deductions and a return that does not hold up if it is ever reviewed.
Yes. Many clients own more than one entity, an operating company and a separate holding LLC, for example. Each entity's return is prepared individually, with intercompany transactions reconciled correctly across all of them.
We prepare late and multi-year catch-up filings and can request penalty abatement where reasonable cause applies. The sooner this is addressed, the more options are typically available.
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