SOS Filing Number Washington: Everything You Should Know



What Is SOS Filing Number

The SOS filing number (also known as SIN) is a unique identification number assigned to each business entity in Singapore. Every company, organization, association, etc., is given a unique number upon registration with the Accounting & Corporate Regulatory Authority (ACRA).

The number consists of two parts – the first three digits indicate the entity type, while the last four digits represent its serial number. In addition, there is a special code for the following types of entities:

1) The Federal Government (FEDGOV) has an 8-digit number starting with 9999.

2) State and Local Governments (STLGOV) have a 7-digit number starting with 9988.

3) Nonprofit Organizations (NPO), which have a 6-digit number starting with

For example, if you have a company registered under the Companies Act 1965, then its SOS filing number would look something like this:


Where X represents any digit between 1 and 9.

What Is the importance of SOS Filing Number

SOS filing number is a unique identification number assigned to each business entity under the Companies Act 2013. A company’s name, address, contact details, registered office, principal place of business, nature of business, etc., are mentioned in the application along with its registration number. The information provided in the application forms the basis of the registration certificate issued by the Registrar of Companies (ROC).

The purpose of providing the SOS filing number is to ensure that the ROC is able to identify the applicant at any time. In case of any dispute regarding ownership of the company, the SOS filing number helps the ROC to trace back the original document filed by the applicant.

In order to obtain a valid SOS filing number, the following documents should be submitted to the ROC:

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• Application Form

• Memorandum of Association/Articles of Association

• Registered Address

• Principal Place of Business

• Nature of Business

• Name of Directors

• Details of Shareholders

• Details of Company Secretary

• Details of Accountants

• Details of Auditors

• Details of Bankers


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How To Get SOS Filing Number in Washington

1. You need to get a Washington State Driver’s License

You’ll need a valid driver’s license to apply for an SOS filing number. You can get one at any DMV office if you don’t have one yet.

2. Fill out the application

The application asks you to provide information about yourself and your business. Make sure to answer honestly and completely. Be prepared to show proof of your identity and address if necessary.

3. Pay the fee

Once you’ve filled out the application, pay the $25 fee.

4. Wait for approval

After paying the fee, wait for the state to approve your application. Once they do, you’ll receive a letter confirming your SOS filing number.

What Is The Benefits SOS Filing Number in Washington for business

SOS filing number is a unique identification number assigned to each business entity in Washington State. It is issued by the Department of Revenue (DOR) to businesses who file their annual tax returns electronically using the state’s e-file system. The DOR issues these numbers to taxpayers who have filed their taxes online via the department’s website. The taxpayer may use the same number for any subsequent years they file their return.

The SOS filing number is not a Social Security Number, nor does it serve as a Taxpayer Identification Number. However, if you are looking for a unique identifier for your business, then the SOS filing number is what you need.

Benefits of having a SOS filing number:

• You get a unique number that identifies your company.

• Your business name appears on the top right corner of your W-9 forms.

• If you are audited, the IRS uses the SOS filing number instead of your social security number.

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• You can easily track your sales and income tax payments online.

• You can access your tax information at anytime.

• You can save time and money by avoiding delays caused by mail.

What Is The Cost of Getting SOS Filing Number in Washington

The cost of getting an SOS filling number in Washington varies depending on where you reside. You may have to spend $25 if you live inside Spokane County. If you reside in Pierce County, you’ll need to pay $50; in King County, the fee’s $75; in Thurston County, the amount is $100. Finally, if you reside in Snohomish Count, you’d need to pay $125.



Frequently Asked Questions

What taxes does an LLC pay in Washington State?

1. Sales tax

Sales tax is paid at the time of sale. You do not have to collect sales tax unless you sell goods out-of-state. If you’re selling products online, you may need to charge sales tax if you live in WA state.

2. Use Tax

Use tax is charged based on how much product was used. In Washington, use tax is calculated using a formula where 50% of the retail price is multiplied by the number of units sold.

3. Gross Receipts Tax (GRT)

Gross receipts tax is a flat rate of 6%. GRT is collected on gross income before deductions.

4. Franchise Tax

Franchise tax is a flat rate per $10,000 of net taxable income. Net taxable income is defined as total business income minus allowable expenses.

5. Income Tax

Income tax is a flat rate on net taxable income. There is no personal exemption.

What is the difference between a Washington LLC and a professional LLC?

Washington State does not have any legal requirements for what type of business entity should be formed. However, if you plan on doing business in the state, then you need to know the differences between different types of businesses. There are two basic forms of business entities that you may choose to use; either a Washington LLC or a Professional LLC. A Washington LLC is a company that is registered under the Washington Business Corporation Act (WBCA). A Professional LLC is a company that operates under the Limited Liability Company Law (LLC) of the District of Columbia. Both types of companies offer similar advantages and disadvantages.

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The first thing to consider is whether you want to operate your business out-of-state or in-state. If you are planning on operating your business out-of state, then you would benefit from forming a Washington LLC. You will only need to file taxes once per year, regardless of where you do business. In addition, you will be able to deduct expenses related to running your business. On the other hand, if you are planning on operating in-state, then you would benefit more from forming a Professional LLC. You will be taxed twice per year, depending on how much money you make. Additionally, you will be responsible for paying sales tax on all income earned.

Another factor to consider is whether you plan on having employees or contractors working for you. If you plan on hiring employees, then you will need to register them as independent contractors. Independent contractors are not eligible for unemployment insurance or workers’ compensation. Also, they cannot receive Social Security or Medicare benefits. If you hire contractors, then you will need a DBA (Doing Business As) registration. Doing Business As means filing paperwork with the Secretary of State’s office to establish a trade name. Once you obtain a trade name, then you can start using it to conduct business.

Finally, you need to decide whether you want to incorporate or not. Incorporating means that you will own 100% of the company. Therefore, you will be personally liable for any debts incurred by the company. If you do not incorporate, then you will still be liable for any debts incurred, but you will not lose ownership of the company.

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