Your tax returns, filed by experts, with precision.

Expert tax professionals + smart workflows. Our tax filing service ensures your federal and state filings are accurate, compliant, and on time.

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Don’t waste hours figuring out forms or deadlines. We’ve got the people, process, and tech to handle it.

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Smart workflows, auto-fill forms, and e-sign reduce hours of work.

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Your own tax expert and tax preparer, always within reach.

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AI checks + tax expert validation = bulletproof filings.

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Guaranteed compliance with IRS and state laws.

File your taxes in 3 easy steps

1
Provide information
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We’ll auto-fetch the right financial data.
2
A tax expert, just for you
They review your info, clarify deductions, and prepare filings.
3
Review and approve
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You review, approve, and sign. That’s it—you're done!

We don’t just file, we help you stay ahead

Whether you're a US-based startup or a foreign-owned Delaware C-Corp, Inkle takes the complexity out of compliance.

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Tax professionals on chat keep your books investor-ready.

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Stay ahead with quarterly reviews, payment planning, and year-round strategy.

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Built for Global Founders

Foreign-owned C-Corp? Non-resident? We specialize in international compliance.

Proactive Tax Planning

Ask, share, sign right from your dashboard, like messaging a teammate.

Nothing comes close to what Inkle offers for US Taxes and Compliance. Their product has a simple and easy-to-use UI with streamlined processes.

Nikolay Bonev

Co-Founder & CTO at Shelf

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FAQs

Do I need to file a Form 7004?

Only if you need more time. Form 7004 is optional, and filing it gives most business returns an automatic extension of up to six months.

There is no downside to filing one as a precaution, and no explanation is required. It extends the filing date, not the payment date.

When is the deadline to file Form 7004 for C Corporations?

On or before the original due date of the return, which is 15 April for a calendar-year C-Corp. Filed on time, it extends the return to October.

Form 7004 extends filing only. Tax owed is still due in April, so estimate and pay with the extension.

What are the penalties for filing Form 7004 late?

There is no penalty for the extension itself. The consequence is that the extension is not granted, so the underlying return becomes late and its own penalties start accruing.

That is why the extension has to be in on or before the original due date. More on Form 7004.

What is Delaware franchise tax and who has to pay it?

An annual fee every Delaware corporation owes to keep its entity in good standing. It is not a tax on income, so it is owed whether or not the company trades or makes a profit.

Corporations file an annual report with it, by 1 March. Miss it and the state can void the charter, which blocks financings until it is reinstated.

What is a Form 1120 in Delaware?

The same federal return every US C-Corp files. There is no Delaware-specific version of Form 1120.

What Delaware adds is franchise tax and an annual report, which are state obligations separate from the federal return. Companies often conflate the two and miss one of them.

What is a Delaware C-corp?

A corporation incorporated in Delaware and taxed under subchapter C, meaning it pays tax at the entity level and can have unlimited shareholders, including foreign ones, across multiple stock classes.

It is the structure US investors expect. Our Delaware C-Corp guide covers what it involves.

What happens if I don't pay Delaware franchise tax?

Interest and penalties accrue, the company loses good standing, and after prolonged non-payment Delaware can void the charter.

A voided entity cannot get a certificate of good standing, which blocks financings and bank account changes. Reinstatement means paying everything owed plus fees. More on franchise tax.

What is Form 926?

It reports transfers of property, including cash above a threshold, from a US person to a foreign corporation.

Funding your Indian subsidiary from the US parent can trigger it. The penalty is a percentage of the transferred value, so it is worth checking before the wire goes out. Our Form 926 guide.

How do I issue a Form 1099?

If you are issuing one, you file it through an electronic provider rather than printing the IRS copy, which is scannable and cannot be downloaded and submitted.

If you are expecting to receive one, it comes from whoever paid you. Our 1099 guide covers both sides.

Do I have to e-file Form 1099?

Yes, through the IRS IRIS or FIRE systems, or via a filing provider. For most businesses it is now mandatory rather than optional.

If you file 10 or more information returns in total across all types, electronic filing is required. Our 1099 guide covers the process.

Who has to file Form 1120?

Every domestic C-Corp, every year, including companies with no revenue and no activity. Some other entities elect corporate treatment and file it too.

The zero-revenue case is the one founders get wrong. Our Form 1120 page covers who files and what the return needs.

What is the difference between Form 1040 and Form 1120?

Form 1040 is your personal return. Form 1120 is your company's corporate return, filed by the C-Corp as a separate taxpayer.

Owning a C-Corp does not merge the two. The company files its own return and pays its own tax, and you file personally on salary or dividends you receive.

Which organizations are exempt?

Charitable organisations, social welfare organisations, social clubs, trade associations, labour organisations, veterans' organisations, and political organisations, among others the IRS lists.

Exempt status does not mean no filing. Most still submit an annual information return on Form 990 or one of its variants. More on US tax obligations.

What if I make a mistake on Form 1120?

You file an amended return correcting the error. Small arithmetic mistakes are often caught and adjusted by the IRS, which sends a notice rather than requiring an amendment.

Errors that change taxable income need fixing properly. Our Form 1120 page covers what the return requires.

What is the penalty for not e-filing IRS forms?

The IRS treats a paper return filed when e-filing was required as a failure to file, charged per return and increasing with delay.

Penalties stack across forms, so one administrative decision across 15 returns becomes a meaningful bill. Our guide to late filing penalties covers how they are calculated.

How will your company adapt its processes for managing and filing 1099-NEC forms to comply with the new requirements?

Collect W-9s as contractors are onboarded rather than in January, keep contractor payments separate from payroll in your books, and use a provider that transmits to the IRS electronically.

The threshold counts all information returns together, so 1099s plus W-2s reaching 10 makes e-filing mandatory. Our 1099-NEC guide covers the detail.

Ready to stop chasing your taxes?