Verification Status: This article is an explanation based on publicly available information (the editorial team has not personally used or traded the services described).
"Should I incorporate instead of staying a sole proprietor to increase my take-home pay?" – This thought has grown stronger for Ken Tanaka (35), an active IT freelancer, every year during tax filing season. Although his revenue has stabilized, the burden of taxes and social insurance premiums remains heavy, and his concerns about the future persist. That's when he stumbled upon a service online called the "Lowest-Cost Micro Corporation Package (Tax Advisory)."
Conclusion: This service is best suited for sole proprietors who have a certain level of revenue and want to verify the tax-saving effects with numbers. Why? Because it allows you to clearly assess the pros and cons through a free tax-saving simulation before signing up, and with a low monthly fee starting from ¥10,000 and year-end settlement fees from ¥0, you can start operating a micro corporation with minimal risk.
The "Tax Wall" Facing Sole Proprietors – When to Incorporate
Mr. Tanaka, now in his fifth year as an independent systems engineer, had seen his annual income grow to around 8 million yen. Yet his take-home pay hadn't increased as much as he had hoped. With the burden of income tax, residence tax, and personal business tax growing heavier each year, he found himself harboring a vague unease: "If I keep working like this, will I be able to save enough for the future?"
The tax rate structures for sole proprietors and corporations differ. Generally, sole proprietors are subject to progressive income tax rates, meaning the more you earn, the higher your tax rate. For corporations, on the other hand, a corporate tax rate is applied based on income, and there is also room to control the tax burden—for example, by recording executive compensation as an expense. Once annual income exceeds a certain threshold, this difference begins to have a significant impact on take-home pay.
Mr. Tanaka had heard that "incorporating can save you on taxes." However, he had been hesitant for a couple of reasons. One was that the process of setting up a corporation seemed cumbersome. The other was the concern that the consulting fees paid to a tax accountant would become a new fixed cost, potentially offsetting any tax savings. For sole proprietors like Mr. Tanaka, the option of a "micro-corporation"—which can be started at a low cost—is now attracting attention.
The "Cheapest Micro Corporation Package (Tax Advisor)" – What Is It? A Detailed Look at Services and Pricing
The "Cheapest Micro Corporation Package (Tax Advisor)" is a tax advisory service offered by Kikuchi Accounting Firm, designed specifically for sole proprietors and freelancers. Its biggest selling point is that it provides full support for setting up and running a micro corporation at a low cost—starting from ¥10,000 per month and ¥0 for annual closing fees.
The pricing structure is very straightforward: from ¥10,000 per month, and annual closing fees from ¥0. Multiple review sites describe it as "less than half the price of other firms," making it highly attractive for small business owners looking to keep costs down. Tanaka also learned about this low pricing and began to feel, "Maybe this is within reach."
The service covers a wide range of back-office tasks essential for running a corporation, including bookkeeping, preparing tax returns, tax consultations, and handling tax office correspondence. In addition, it also offers support for financing and subsidy applications, providing assistance tailored to each stage of business growth. The fact that it is described as "fully hands-off" is also reassuring for business owners who want to focus on their core operations.
Since the service is fully online and available nationwide, even those living in rural areas can access high-quality tax services. Before signing up, the firm offers a free tax-saving simulation based on your most recent tax return. This allows you to see in numbers exactly how much you could save in taxes and whether the service is truly worthwhile after deducting fees. For the latest pricing plans and details on covered services, please check the official website.
Real Pros and Cons as Seen in User Reviews
The feedback from people who have actually used the service provides valuable insight for someone like Tanaka who is still considering it. Across multiple review sites, three main points of praise and two key cautions stand out.
First, many users highly value the ability to check tax-saving effects in advance. Since a free simulation is available before signing a contract, users have shared comments like:
I was able to confirm with actual numbers whether it would really be worth it. (Source: Multiple review sites)
It's easy to predict monthly costs. (Source: Multiple review sites)
Second, the clarity of pricing is also well received. The simple structure—starting at ¥10,000 per month with no year-end filing fee—makes it easy to forecast fixed costs.
Third, the convenience of nationwide online support is a major plus. Users in regional areas have noted they can use the service even without a local expert nearby.
On the other hand, there are also points to be cautious about. One is that the micro-corporation system itself can feel complicated. This stems from the inherent complexity of the system, and is more of a learning cost associated with incorporating rather than a flaw in the service itself.
Another, more essential caution is that the amount of tax savings varies greatly from person to person. This is because the break-even point for incorporation depends on factors such as sales volume, profit level, and family structure.
The pros and cons from these reviews can be summarized as follows:
| Pros | Cons |
|---|---|
| Low cost starting from ¥10,000/month and ¥0 year-end fee, keeping expenses down | If sales/profits are low, it could actually increase the financial burden |
| Free simulation allows you to check the cost-benefit in advance | Requires understanding of the micro-corporation system itself |
| Nationwide online support, usable from anywhere | Tax-saving effects vary greatly by individual and are not uniform |
| Covers everything from bookkeeping to tax filing and loan consultation | May not be usable in some cases, such as for salaried employees with side businesses |
As Tanaka read through these reviews, he felt both anticipation and the need for a calm judgment: "Maybe with my income level, I could enjoy the benefits. But what's the reality?"
Thorough Comparison with Competitors: Is the "Cheapest Micro Corporation Package" Really a Good Deal?
There are numerous tax advisory services for corporations. Here, we compare the "Cheapest Micro Corporation Package" with representative competing services to clarify their respective features.
| Service Name | Monthly Fee (Tax Included) | Settlement Fee | Scope of Services | Online Support | Free Simulation | Loan & Subsidy Consultation |
|---|---|---|---|---|---|---|
| Cheapest Micro Corporation Package | From ¥10,000 | From ¥0 | Bookkeeping, filing, tax consultation, tax office correspondence, etc. | Nationwide | Available | Available |
| YFP Kurei Certified Public Tax Accountant Firm "One-Person Company Support" | From ¥6,000 | — | — | — | — | — |
| SoVa Accounting Firm | From ¥29,800 | — | Bookkeeping outsourcing, social insurance procedures, subsidy advice, etc. | — | — | — |
| General Tax Accounting Firm | Quote required | Quote required | Varies by firm | Varies by firm | Varies by firm | Varies by firm |
YFP Kurei's "One-Person Company Support" is even more affordable, starting at ¥6,000 per month, but it comes with conditions such as annual sales under ¥5 million and fewer than 30 journal entries per month. SoVa Accounting Firm offers comprehensive support including social insurance procedures and subsidy advice, but its monthly fee starts at a higher ¥29,800.
The standout features of the "Cheapest Micro Corporation Package" are that settlement fees start from ¥0 and that you can check the cost-benefit with a free tax-saving simulation before signing a contract. These two points significantly reduce the risk of "cost overrun," the biggest concern when incorporating. Considering Mr. Tanaka's case with an annual income of ¥8 million, you can first understand the specific tax savings through the free simulation, then compare them with the advisory fee starting at ¥10,000 per month, allowing for a very rational decision.
Why not start with the free simulation to find out the specific break-even point in your case? There is absolutely no cost involved. The features and conditions of each service may change. Please be sure to check the latest information on the official website.
How It Works: 4 Steps from Free Simulation to Contract
"Let's just hear what they have to say first." Tanaka decided to apply for the free simulation. The process to get started is surprisingly simple.
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Apply for a Free Estimate Visit the official website, prepare your most recent tax return, and submit your application. Based on this document, a simulation of tax savings tailored to your business will be conducted.
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Review the Simulation Results Check the presented simulation results to see whether the tax savings exceed the advisor fees. At this stage, there is absolutely no obligation to sign a contract. For Tanaka, this was the first time he saw the specific break-even point for his own situation in numbers, finally clearing up years of uncertainty.
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Sign the Contract Once Satisfied If you are satisfied with the simulation results, proceed to the formal contract. Since the entire process is handled online nationwide, there is no need to visit an office.
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Establish Your Micro Corporation and Start Tax Advisory Services After signing, support begins with the incorporation process. Once the company is established, services such as bookkeeping outsourcing, year-end closing, tax filing, and tax consultation are provided continuously, giving you a setup where you can "outsource" all the tedious back-office tasks.
The free simulation is a risk-free first step that expands your future options at zero cost to you. By taking this step, Tanaka was able to free himself from vague anxieties and focus on planning the future of his business.
Summary: Who the "Cheapest Micro Corporation Package" Is Really For
Kenta Tanaka, after going through the free simulation, decided to establish a micro corporation and use the tax advisory service. The biggest takeaway he gained was breaking free from a vague sense of unease and obtaining a clear future outlook based on numbers.
The "Cheapest Micro Corporation Package (Tax Advisory)" is best suited for the following people:
- Sole proprietors and freelancers with an annual income of 5 million yen or more who want to see the tax-saving effects confirmed in numbers.
- Those who want to focus on their main business and outsource all the hassle of accounting and tax procedures.
- People living in rural areas who don't have reliable experts nearby.
On the other hand, the following people should be cautious, as using this service could actually increase their burden:
- Those whose sales and profits are still low, making the increase in fixed costs like social insurance premiums a heavy burden.
- Those considering incorporating as a side business while being a company employee.
- Those who want to prioritize tax benefits, such as households exempt from residence tax.
Incorporating is one powerful option for growing your business. However, its profitability varies greatly depending on individual circumstances. The greatest value of the "Cheapest Micro Corporation Package" is that it allows you to clearly identify this break-even point for free, starting from a monthly fee of 10,000 yen and an annual closing fee of 0 yen. If you want to minimize risk and take a step forward based on solid information, why not start with a free simulation?
Note: The content of this article is based on publicly available information as of July 2026. Please be sure to consult a professional for individual tax decisions and procedures. This does not guarantee the amount of tax savings or the results of incorporation.
Methodology and Disclosure
Verification Method: This article was prepared based on publicly available information as of -07-29. The editorial team has not personally subscribed to or used the services discussed. This content is an explanation based on publicly available information (official websites, third-party reviews, and user feedback). As services, fees, and promotions are subject to change, please be sure to check the official information before applying.
Publisher Information: Our editorial policy and evaluation criteria are described in the Editorial Policy, and the verification process is detailed in the Evaluation Methodology. If you find any errors, please report them to our contact desk.
Affiliate Disclosure: This article contains affiliate links, and our site may receive compensation without any additional cost to readers. This compensation does not affect the content of our evaluations.
Frequently Asked Questions
What is a micro corporation and how is it different from a sole proprietorship?
A micro corporation is a small-scale corporate entity. Unlike a sole proprietorship, it is subject to corporate tax rates and allows you to deduct executive compensation as an expense, giving you more control over your tax burden. However, if your sales or profits are low, it could actually increase your costs.
Is the cheapest micro corporation package really just ¥10,000 per month? Are there any additional fees?
The basic plan starts at ¥10,000 per month with ¥0 annual closing fee (conditions apply). Reviews indicate it is about half the cost of other firms, but additional services or optional features may change the total price. Always check the official website for the latest plan details.
What does the free tax-saving simulation check?
Using your most recent tax return, the simulation calculates the tax savings and net benefit after deducting service fees if you incorporate. This helps you decide in advance whether incorporation is truly advantageous for you.
Can I use this service for a side business while employed full-time?
Reviews note that some cases, such as side businesses for salaried employees, may not be eligible. You need to check the specific terms and conditions individually.
Is there a cancellation fee if I want to terminate the contract?
The article does not mention any cancellation fees. You should confirm the cancellation terms at the time of contract.
What documents and procedures are required to establish a micro corporation?
The article does not detail the specific documents or procedures. The service primarily supports post-incorporation operations, so please check the official website for the scope of incorporation support.
Will you handle a tax audit if one occurs?
Yes, the service includes support for tax audits, so you will receive assistance if an audit happens.
Can I use this service if I live in a rural area?
Yes, the service is nationwide and fully online, so even those in rural areas can receive high-quality tax services. Reviews praise it as "usable even without a local expert."
Sources
This article is based on publicly available information as of 2026-07-29.
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