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Best Contasimple Alternative in Spain

Updated June 2026 · Autonomo.help

Contasimple is one of Spain's best-known invoicing and accounting tools for freelancers and small businesses. It helps users create invoices, track expenses, manage VAT and organize their accounting throughout the year.

But not every freelancer needs invoicing software or a monthly subscription.

But not every freelancer needs a full accounting platform or a monthly subscription—especially if you mainly work with foreign clients and only issue one or two invoices per month.

Quick summary

  • Contasimple focuses on invoicing, VAT management and simple accounting.
  • autonomo.help is not invoicing software and does not submit tax forms for you.
  • autonomo.help helps you calculate your quarterly taxes and shows which values go into Modelo 130 and Modelo 303.
  • You then copy the numbers into AEAT and submit the forms yourself.
  • autonomo.help costs €19 per filing, with no monthly subscription.

Best for

Contasimple is best suited to freelancers who invoice clients regularly and want simple software for invoices, VAT tracking and accounting records.

autonomo.help is best suited to freelancers who already manage their invoices but want a simple way to prepare Modelo 130 and Modelo 303.

What Is Contasimple?

Contasimple is invoicing and accounting software designed for freelancers and small businesses in Spain. It helps users create invoices, track expenses, manage VAT and organize accounting records throughout the year.

For freelancers who invoice clients regularly and want an easy invoicing solution, Contasimple can be an excellent choice.

However, if you only issue a few invoices every quarter and mainly need to prepare Modelo 130 and Modelo 303, a complete invoicing platform may provide more functionality than you actually use.

Why Do Freelancers Look for Contasimple Alternatives?

Most freelancers looking for a Contasimple alternative are not necessarily unhappy with Contasimple. They are usually asking a simpler question:

“Do I really need invoicing software if I only prepare quarterly tax returns?”

Many freelancers simply have straightforward businesses.

  • Some issue only a few invoices every quarter.
  • Some already create invoices manually or with another tool.
  • Some have only a handful of deductible expenses.
  • Some work mostly with foreign clients.
  • Some simply want to prepare Modelo 130 and Modelo 303 themselves.

For these freelancers, the challenge is often not creating invoices. It is preparing the quarterly tax forms correctly.

Invoicing vs Quarterly Tax Preparation

Contasimple is designed to help freelancers invoice clients, keep accounting records and manage VAT throughout the year.

But many freelancers already have another way to create invoices, or only issue a few invoices every quarter.

In those situations, preparing quarterly tax forms may be the only task they actually need help with.

How autonomo.help Is Different

autonomo.help is built around a different idea.

Instead of replacing invoicing software, 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 Contasimple 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 invoicing software throughout the year.

Contasimple vs autonomo.help

Both products help freelancers in Spain, but they are built for different needs. Contasimple focuses on invoicing, VAT and simple accounting, while autonomo.help focuses on helping you prepare your quarterly tax forms yourself.

FeatureContasimpleautonomo.help
Best forInvoicing and VAT trackingSimple quarterly filings
PricingSubscription plans€19 per filing
Monthly subscriptionYesNo
InvoicingYesNo
VAT trackingYesManual input
Expense trackingYesManual input
AccountingYesNo
Filing methodThrough the platformSelf-file via AEAT
Modelo 130YesYes
Modelo 303YesYes

Pricing: Subscription Software vs Pay Per Filing

One of the biggest differences is pricing structure.

Contasimple uses subscription plans because it is designed for freelancers who create invoices and manage accounting throughout the year.

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 quarter and mainly need help preparing Modelo 130 and Modelo 303, paying every month for invoicing and accounting software may not always be necessary.

That is the situation autonomo.help was built for.

Choose Contasimple If...

Contasimple may be the better option if you want invoicing software rather than a simple tax filing assistant.

  • You invoice clients regularly.
  • You want invoice templates.
  • You need VAT tracking.
  • You want accounting records throughout the year.
  • You want invoices, expenses and accounting in one place.
  • You do not mind paying a subscription.

In these cases, invoicing software can save time and help keep your records organized.

Choose autonomo.help If...

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

  • You already use another invoicing tool.
  • You issue only a few invoices each quarter.
  • You mostly work with foreign clients.
  • 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: Invoicing Software vs Filing Support

The simplest way to compare the two products is this:

Contasimple

Invoicing and accounting software that helps freelancers create invoices, manage VAT and keep accounting records throughout the year.

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 need invoicing software to manage your business throughout the year, Contasimple may be the better choice. But if you simply need to prepare the numbers for your quarterly tax returns, invoicing software may offer more features 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 normally handles your 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 or full bookkeeping service.

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 accounting. 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 full-service platform if:

  • You have employees.
  • You operate through a company.
  • 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 Contasimple worth it for autónomos in Spain?

Contasimple may be worth it if you want invoicing software to create invoices, manage VAT and keep accounting records throughout the year. If you only need help preparing quarterly tax forms, a lighter pay-per-filing option may be enough.

Is there a cheaper alternative to Contasimple?

If you do not need full invoicing and accounting software, 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 creating invoices and managing VAT throughout the year, Contasimple may be the better choice.

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

Contasimple focuses on day-to-day invoicing and accounting, while autonomo.help focuses on helping freelancers prepare quarterly Spanish tax forms accurately and simply.

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