Is Streamlined Sales Tax Registration Always the Best Option?

What Is Streamlined Sales Tax Registration?

The Streamlined Sales Tax Registration System (SSTRS) provides businesses with a central registration system for participating Streamlined Sales Tax states.  For an ecommerce business discovering that it needs to register in several states, the appeal is obvious.  Instead of navigating numerous separate registration systems, SST can make the initial process considerably more convenient.

For some businesses, particularly those with obligations across many SST member states, that can be a major advantage.  But there is an important distinction: A convenient way to register is not necessarily the same as the best registration strategy.

Before deciding how to register, a business should first establish where it actually has sales tax obligations.  SST registration can be a convenient way to register in participating states, but individual state registration may provide businesses with greater control over where and when they register. The better option depends on the company’s nexus, historical exposure and ongoing compliance requirements.

Why Businesses Choose Streamlined Sales Tax Registration

There are good reasons businesses use SST.  The system was designed to simplify sales tax administration and can reduce some of the complexity associated with registering across multiple participating states.

For a business that genuinely needs to register broadly, advantages can include:

• A central registration process
• Access to participating SST states
• Simplified administration
• Compatibility with Certified Service Providers
• Potential SST-specific benefits in qualifying circumstances

Those are meaningful benefits.

The question businesses should ask isn’t whether SST is useful.  Does the convenience of SST fit our actual sales tax position?

Why SST Registration Isn’t Always the Best Option

The issue arises when a business chooses a registration method before determining exactly where it needs to register.  An ecommerce company might sell into 40 states but that doesn’t necessarily mean it needs 40 sales tax registrations.  Its actual obligations might exist in only six, ten or fifteen states depending on its nexus and business activities.

Before choosing SST or individual registration, the business should understand:

• Where economic nexus has been created
• Whether physical nexus exists
• When each nexus obligation began
• How marketplace sales affect thresholds
• Whether products are taxable
• Whether historical liabilities exist

Only then should registration begin.

Why Individual State Registration Can Provide More Control

1. Register Only Where You Actually Need To

One of the biggest advantages of individual registration is the ability to approach compliance state by state. Instead of asking: “Which states can we register in?”  The better question is: “Which states are we actually required to register in?”  That distinction matters.

If a business only has nexus in seven states, registering individually in those seven states may provide a more focused compliance footprint.  States where thresholds haven’t yet been crossed can simply be monitored.

2. Control When Each Registration Happens

Nexus doesn’t necessarily arise everywhere at the same time.

For example, a rapidly growing Shopify store could create:

• Florida nexus in February
• Washington nexus in May
• Georgia nexus in August

while remaining below the threshold elsewhere.

Individual registration allows each obligation to be handled according to its own circumstances rather than treating every state as part of one broad registration exercise.  That can make your compliance position easier to understand and manage.

3. Review Historical Exposure Before Registering

This is particularly important when a business discovers nexus late.  Suppose you realise today that your business should have registered in a state 18 months ago. Registering now doesn’t automatically resolve those previous 18 months.

There may already be:

• Uncollected sales tax
• Missing returns
• Interest
• Penalties

Before registering, you should establish when nexus actually began and calculate the potential exposure.  That allows you to determine the best route into compliance rather than simply opening an account and dealing with the consequences afterwards.

4. Consider Voluntary Disclosure Before Registration

If significant historical exposure exists, a Voluntary Disclosure Agreement (VDA) may sometimes be appropriate.

Depending on the state and circumstances, voluntary disclosure can potentially provide:

• Reduced or waived penalties
• A limited historical lookback period
• A structured path into compliance

Eligibility varies by state.  Importantly, registering first, or waiting until the state contacts you, can affect the options available.  This is one of the strongest reasons for completing a state-by-state review before registration.

5. Avoid Unnecessary Ongoing Filing Obligations

A sales tax registration creates an ongoing relationship with the state.

Once registered, businesses will generally be expected to:

• File sales tax returns
• Remit collected tax
• Maintain records
• Respond to correspondence
• File zero returns where required

So unnecessary registration can create unnecessary administration.

Imagine a business registers in 15 states when analysis shows it currently only needs registrations in nine.  That could mean six additional state accounts requiring ongoing management without a current nexus requirement driving the registration. More registrations do not automatically mean better compliance.  The objective should be the correct registrations.

6. Individual Registration Can Make Your Compliance Position Clearer

A state-by-state strategy creates a clear compliance record.

For example:

State	Nexus Position	Registration	Historical Exposure	Action
Florida	Nexus created	Required	None	Register
Texas	Below threshold	Not currently required	None	Monitor
Tennessee	Historical nexus	Review required	Possible	Assess options
California	Nexus created	Required	Possible	Review then register

This gives the business something more useful than a collection of permits.  It gives it a documented sales tax strategy.

What About States Outside SST?

Another important consideration is that Streamlined Sales Tax does not include every state.  A business selling nationwide may therefore still require direct registrations in non-SST states.

That means its eventual compliance structure could involve:

• SST registrations
• Individual state registrations
• Marketplace facilitator considerations
• Different filing schedules

For some businesses, handling registrations individually provides a more consistent approach across their entire US sales tax footprint.

SST Registration vs Individual State Registration

Consideration	SST Registration	Individual Registration
Convenient central registration	Strong advantage	Registration handled separately
State-by-state control	Available, but more centralised	Strong advantage
Suitable for widespread multi-state obligations	Often	Yes
Suitable for a small number of nexus states	Not really	Often attractive
Historical exposure requires separate review	Yes	Yes
VDA analysis required before late registration	Yes	Yes
Covers every sales tax state	No	Direct registration available state-by-state
Allows targeted compliance strategy	Yes	Particularly well suited
Potential SST-specific benefits	Yes	Generally not

Neither approach is automatically better.  The correct choice depends on the facts.

When Is SST Registration a Good Option?

SST can make considerable sense when a business:

• Has nexus across numerous participating states
• Intends to register broadly
• Wants a centralised registration process
• Plans to use a Certified Service Provider
• Qualifies for a particular SST benefit or program

In those circumstances, the convenience SST provides can be extremely useful.

RJM Tax Exemption isn’t suggesting businesses should avoid SST.  Instead, businesses should avoid assuming SST must be the best option simply because it makes registration easier.

When Might Individual Registration Be Better?

Individual registration can be particularly attractive when:

• You only have nexus in selected states
• Different states have different nexus dates
• You want to avoid unnecessary registrations
• Historical liabilities need reviewing
• You may need a VDA
• Your marketplace sales complicate nexus calculations
• You want greater control over the timing of each registration

This is especially relevant for Shopify, Amazon and other ecommerce businesses whose sales tax footprint changes rapidly as they grow.

Worked Examples

Worked Example 1: Growing Shopify Store

A Shopify business sells nationwide but has only crossed nexus thresholds in six states.  Rather than treating nationwide sales as a reason for widespread registration, the company performs a nexus analysis.

It identifies:

• Six states requiring registration now
• Four states approaching thresholds
• Remaining states with no current economic nexus requirement

Individual approach:  Register in the six states where required and monitor the others.

This creates a targeted compliance footprint that can expand as the business grows.

Worked Example 2: Business That Discovered Nexus Late

An ecommerce seller discovers it crossed nexus thresholds in several states during 2024.  Instead of immediately submitting registrations, its historical sales are reviewed first.

The review identifies:

• One state with minimal exposure
• Two states with substantial historical liability
• One state where marketplace facilitator activity significantly changes the position

The appropriate registration or disclosure strategy can then be selected separately for each state.

The lesson is analyse first, register second.

Worked Example 3: Business With Widespread Nexus

A larger ecommerce company already has nexus across numerous SST member states and needs to become compliant going forward.  There is no significant unresolved historical exposure, and the company wants a centralised solution.

In this case: SST registration may be the more convenient and efficient choice.  This illustrates why there is no universal answer.

Common Sales Tax Registration Mistakes

• Choosing a registration method before completing a nexus analysis
• Registering everywhere simply because the business sells nationwide
• Assuming more registrations mean better compliance
• Ignoring historical exposure before registering
• Missing potential VDA opportunities
• Forgetting that registration creates ongoing filing obligations
• Assuming SST is always better because the initial registration process is easier

FAQs

Final Thoughts

The Streamlined Sales Tax Registration System exists for a good reason as it can make multi-state sales tax registration more convenient.  For the right business, that convenience can be extremely valuable.  But convenience should not replace strategy.

The key takeaway is SST registration is convenient, but individual state registration can provide more control and may be better for businesses that only have nexus in selected states, have historical exposure to review, or want a more targeted compliance strategy.

Before choosing either route, understand where your business has nexus, when those obligations began, and what historical issues need resolving.  That allows you to choose the registration method that fits your business, not simply the method that is easiest to start.

Need help deciding between SST and individual state registration?

RJM Tax Exemption can review your sales tax nexus state by state, identify where you actually need to register, assess any historical exposure, and complete individual state registrations on your behalf. Schedule a meeting with RJM Tax Exemption today to build a registration strategy around your business. For businesses with a small or evolving multi-state footprint, this can provide far greater visibility over their US sales tax position.