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Best Taxfix Alternative in Spain

Updated June 2026 · Autonomo.help

Taxfix is an online tax advisor for freelancers, businesses and individuals in Spain. It combines professional tax support with quarterly tax filings, annual income tax returns, autónomo registration and bookkeeping services.

But not every freelancer needs an online gestoría or a dedicated tax advisor—especially if you mainly work with foreign clients and only issue one or two invoices per month.

If your main goal is simply preparing Modelo 130 and Modelo 303 yourself, a pay-per-filing solution may be enough.

Quick summary

  • Taxfix combines software with professional tax advisors.
  • It may help with autónomo registration, quarterly filings, bookkeeping and annual Renta.
  • autonomo.help is not a gestoría and does not assign a tax advisor.
  • autonomo.help helps you prepare Modelo 130 and Modelo 303 yourself.
  • autonomo.help costs €19 per filing, with no monthly subscription.

Best for

Taxfix is best suited to freelancers who want a professional tax advisor or online gestoría-style service to manage their taxes.

autonomo.help is best suited to freelancers who understand their basic numbers and want a simple way to prepare Modelo 130 and Modelo 303 themselves.

What Is Taxfix?

Taxfix is an online tax advisory platform that combines software with professional tax support. Depending on the service, users may receive help with autónomo registration, quarterly tax filings, annual income tax returns, bookkeeping and tax questions.

For freelancers who want someone else to manage tax deadlines, review their situation and handle filings, Taxfix can be an excellent choice.

However, if your business is straightforward and you simply want to prepare Modelo 130 and Modelo 303 yourself, a full tax advisory service may provide more than you actually need.

Why Do Freelancers Look for Taxfix Alternatives?

Most freelancers looking for a Taxfix alternative are usually not asking whether tax advisors are useful. They are asking a more practical question:

“Do I really need an online tax advisor if I can prepare my quarterly tax forms myself?”

Many freelancers simply have straightforward businesses.

  • Some issue only a few invoices every quarter.
  • Some mostly work with foreign clients.
  • Some have no employees, inventory or complex structure.
  • Some already keep their invoices and expenses organized.
  • Some simply want to prepare Modelo 130 and Modelo 303 themselves.

For these freelancers, the challenge is often not whether a gestoría could help. It is whether they really need a managed tax service for a simple quarterly filing workflow.

Tax Advisor vs Self Filing

Taxfix is designed for freelancers who prefer having a professional handle their taxes.

autonomo.help is designed for freelancers who want to understand their own numbers, prepare Modelo 130 and Modelo 303 themselves and submit them through AEAT.

This is the key difference. Taxfix is closer to an online tax advisor or gestoría-style service. autonomo.help is a focused preparation tool for self-filers.

How autonomo.help Is Different

autonomo.help is built around a different idea.

Instead of replacing a gestoría, it helps you prepare your own quarterly tax forms.

The autonomo.help process

  1. Enter your income for the quarter.
  2. Add your deductible business-related expenses.
  3. The system calculates your estimated tax values.
  4. The values are assigned to the correct boxes in Modelo 130 and Modelo 303.
  5. You copy the numbers into the official AEAT forms and submit them yourself.

This is why autonomo.help is not a direct replacement for every Taxfix user. It is a lighter option for freelancers who want to stay in control and only need help preparing quarterly tax forms instead of using a managed tax advisory service.

Taxfix vs autonomo.help

Both products help freelancers in Spain, but they are built for different needs. Taxfix focuses on managed tax support, while autonomo.help focuses on helping you prepare your quarterly tax forms yourself.

FeatureTaxfixautonomo.help
Best forOnline tax advisorQuarterly self-filing
Professional tax advisorYesNo
Gestoría serviceYesNo
Autónomo registrationYesNo
Annual RentaYesNo
BookkeepingYesNo
Monthly subscriptionUsuallyNo
Pay per filingNo€19 per filing
Modelo 130YesYes
Modelo 303YesYes

Example: Annual Cost for a Simple Freelancer

Imagine you're a digital nomad or freelancer who:

  • issues one or two invoices per month;
  • works mainly with clients outside Spain;
  • has no employees;
  • has straightforward quarterly tax obligations;
  • only needs to prepare Modelo 130 and Modelo 303.
OptionApprox. annual cost
Taxfix Pro≈ €579/year*
autonomo.help€76/year
Potential savings≈ €503/year

*Based on Taxfix Pro pricing at the time of writing. The example assumes four quarterly filings per year. autonomo.help charges €19 per quarterly filing, covering both Modelo 130 and Modelo 303. If you also need annual Renta preparation, bookkeeping, autónomo registration or ongoing tax advice, Taxfix may provide additional value that is not reflected in this comparison.

Pricing: Managed Tax Service vs Pay Per Filing

One of the biggest differences is what you are paying for.

Taxfix is designed as a managed tax advisory service. That can make sense if you want professional support, help with deadlines, annual Renta, autónomo registration or broader tax questions.

autonomo.help uses a pay-per-filing model. You pay only when you prepare a quarterly filing.

If you only file quarterly

If you only issue a few invoices each month and mainly need help preparing Modelo 130 and Modelo 303, paying for a managed tax advisory service may not always be necessary.

That is the situation autonomo.help was built for.

Choose Taxfix If...

Taxfix may be the better option if you want professional tax support rather than a simple tax filing assistant.

  • You want a professional tax advisor.
  • You do not want to submit tax forms yourself.
  • You need help registering as autónomo.
  • You want support with your annual income tax return.
  • You want bookkeeping or ongoing tax management.
  • You prefer a managed tax service.

In these cases, a service with professional advisors can save time and reduce stress.

Choose autonomo.help If...

autonomo.help may be a better fit if your needs are narrower.

  • You issue only a few invoices each month.
  • You mostly work with foreign clients.
  • You have no employees.
  • You already know your income and expenses.
  • You want to understand your own tax numbers.
  • You are comfortable submitting forms through AEAT yourself.
  • You do not want a monthly subscription.
  • You only need help preparing Modelo 130 and Modelo 303.

This is especially common for digital nomads, consultants, designers, developers, marketers and other freelancers with straightforward quarterly tax situations.

Need to prepare Modelo 130 or Modelo 303 yourself?

Enter your income and deductible expenses, let autonomo.help calculate your taxes, automatically assign the numbers to the correct tax form boxes, and copy the values into AEAT.

No monthly subscription. €19 per filing.

Start Now

The Important Difference: Tax Advisor vs Filing Support

The simplest way to compare the two products is this:

Taxfix

An online tax advisory service that can help freelancers with tax filings, registration, annual Renta, bookkeeping and broader tax support.

autonomo.help

A focused tool that helps you prepare quarterly tax form values for Modelo 130 and Modelo 303 yourself.

This distinction matters. If you want a professional to manage your taxes, Taxfix may be the better choice. But if you simply need to prepare the numbers for your quarterly tax returns, managed tax support may offer more than you actually need.

Is autonomo.help a Gestoría?

No. autonomo.help is not a gestoría and does not act as your tax representative.

This is an important difference. A gestoría or online tax advisor normally handles tax filings for you. autonomo.help helps you prepare the numbers so you can file yourself.

If you want someone else to take responsibility for filings, deadlines and communications with Hacienda, you may prefer a gestoría, accountant or managed tax service such as Taxfix.

But if you want to stay in control and understand what you are submitting, autonomo.help gives you a simpler workflow.

What About Digital Nomads?

Digital nomads in Spain often work alone, invoice foreign clients and have no employees, inventory or complex business structure.

For them, the main challenge is usually not full tax management. It is preparing Modelo 130 and Modelo 303 correctly every quarter.

If that sounds like your situation, you may also want to read:

When You Should Not Use autonomo.help

autonomo.help is not for every case.

You should consider a gestoría, accountant or managed tax service if:

  • You have employees.
  • You operate through a company.
  • You need help registering as autónomo.
  • You need help with your annual declaración de la renta.
  • You have complex VAT rules.
  • You sell physical goods across multiple countries.
  • You need legal or tax advice.
  • You have received a formal request from Hacienda.
  • You do not want to submit AEAT forms yourself.

In these cases, paying for professional help is usually worth it.

Related Guides

Comparing Different Tools?

Every platform solves a different problem. You may also find these comparisons helpful:

FAQ

Is Taxfix worth it for autónomos in Spain?

Taxfix may be worth it if you want a professional tax advisor or managed tax service to help with filings, registration, Renta or ongoing tax questions. If you only need help preparing quarterly tax forms, a lighter pay-per-filing option may be enough.

Is there a cheaper alternative to Taxfix?

If you do not need a managed tax advisory service, autonomo.help offers a simpler model: €19 per filing, with no monthly subscription.

Can I file Modelo 130 myself?

Yes, many autónomos file Modelo 130 themselves. The important part is understanding your income, deductible expenses, previous payments and the correct boxes in the form.

Can I file Modelo 303 myself?

Yes, but VAT can be confusing, especially if you invoice clients outside Spain or have reverse charge operations. autonomo.help is designed to make the preparation process easier for simple cases.

Does autonomo.help give tax advice?

No. autonomo.help is a preparation tool, not a tax advisor or gestoría. If your case is complex, you should speak with a professional.

Final Thoughts

If your priority is having a professional manage your taxes, Taxfix may be the better choice.

But if your priority is preparing Modelo 130 and Modelo 303 yourself, autonomo.help is designed specifically for that workflow.

Taxfix focuses on managed tax services, while autonomo.help helps freelancers understand their taxes and file quarterly forms independently.

Prepare your quarterly tax forms yourself

autonomo.help helps freelancers in Spain calculate quarterly tax values and prepare Modelo 130 and Modelo 303 step by step.

Enter your income and expenses, get the right values for the official AEAT boxes, and submit the forms yourself.

No monthly subscription. €19 per filing.

Start Now