TaxDown

TaxDown lets people prepare and submit Spanish income tax returns online from a phone or computer, using Android, iOS, or web access. It can import tax details through Cl@ve PIN, a digital certificate, or a reference number. Its Rita engine selects relevant questions and checks more than 250 deductions and allowances, and a tax expert reviews each return before submission. The service covers employment income, self-employment, rental income, investments, tax notices, and other procedures. For rental income, it calculates income and expenses and identifies deductible costs and exemptions; for investments, it calculates gains and losses and integrates investment platforms. The Free plan calculates a result, but expert review and filing require a paid plan. PRO costs €35 a year and includes one return, review, filing, and basic tax support. LIVE adds advisers through chat or WhatsApp, while FULL includes a personal adviser and review of the last four returns. FULL excludes traceability and second residence-procedure filings and is unavailable under the regional tax regime. TaxDown says it does not submit a return without confirmation.

TaxDown combines online tax preparation with expert review and support for several income types. The free tier is limited to calculating a result; review and submission require a paid plan.

TaxDown suits individuals and self-employed users preparing Spanish income tax returns, including those with rental or investment income. People who want expert review and filing need a paid plan.

TaxDown is an online Spanish tax-preparation service for individuals and self-employed filers with income beyond a straightforward salary. It is a strong fit for people who want deductions checked and a tax expert to review their return, though filing and review are not part of the free tier.

Overview

TaxDown combines online preparation and filing with automated calculations and human review. It imports tax data using Cl@ve PIN, a digital certificate or a reference number, then its Rita engine selects relevant questions and checks more than 250 deductions and benefits. That can be useful when a return includes multiple income types, but it still requires the filer to review and confirm before anything is sent to Hacienda.

The service supports self-employment, rental and investment income, as well as tax notices and other procedures. Rental calculations include income, expenses, deductible costs and exemptions; investment calculations cover gains and losses and integrate investment platforms. For notices, its AI identifies the type, year and deadline, and a team member prepares a response. TaxDown says it has filed more than two million returns and employs over 150 tax experts.

Key features

Expert review and filing

Paid return plans include expert review before submission and state filing. That human check is the main distinction from a free calculation tool, particularly for filers who want help assessing deductions. The free plan shows a calculated result without requiring a card, but it does not include review or submission.

Support and security

Support ranges from chat, email or phone with a response under 24 hours to WhatsApp and dedicated advice on higher tiers. A virtual assistant is available around the clock. TaxDown says its connection to the tax agency uses Cl@ve, data is encrypted, and it does not submit a return without confirmation. It also says it does not sell or share customer data and uses it only for the return.

Pricing

TaxDown uses a freemium model. The Free plan costs nothing and provides a simulation and calculated result; it is useful for checking an outcome, not completing a filing.

PRO costs €35 a year and includes one income tax return, calculation and optimization, expert review, filing with Hacienda, covered notifications and fiscal support with a response under 24 hours. It is the most economical paid fit for someone filing one return who does not need faster access to an adviser. LIVE costs €45 a year and adds chat or WhatsApp advisers with responses in minutes, making the extra cost relevant for users who value quicker answers.

FULL costs €65 a year. It includes LIVE, a personal adviser, review of the last four returns, and models 149, 151 and 210. It does not include traceability or second residence procedures and is unavailable under the foral tax regime, so those limitations matter for users whose cases rely on those services.

For autónomos, STANDARD costs €2,990 a month with a three-month minimum stay. It includes autónomo registration, quarterly IRPF and IVA filings, an income tax return, a 24-hour AI assistant and chat support under 24 hours. PREMIUM costs €5,990 a month, also with a three-month minimum; it adds a personal manager, priority WhatsApp, help with tax-agency requirements and tax planning. These monthly plans are aimed at ongoing self-employment needs rather than a single annual return. Subscriptions taken from March 15 through December 31 renew between February and March; cancellation is available on the website, with service continuing to the end of the cycle.

Platforms

TaxDown is available on the web, Android and iOS, so users can prepare a return from a computer or phone. Its mobile apps are present in the App Store and Google Play.

Who it's for

TaxDown suits individuals and autónomos with rental, investment or self-employment income who want expert review, plus filers seeking help with tax notices. It is less compelling for someone who only wants to calculate a result and does not need to file, since that is the main task covered by Free.

Pros and cons

• Pros: Expert review and state filing are included in the paid return plans, not sold as separate add-ons.
• Pros: Rental, investment and self-employment support makes it relevant to returns beyond basic wage income.
• Pros: The free calculation requires no card, giving filers a way to see a result before paying.
• Cons: Free does not include expert review or submission, so users must upgrade to file.
• Cons: FULL excludes traceability and second residence procedures and is not available under the foral regime.
• Cons: The autónomo plans require a minimum three-month commitment, which is a substantial commitment for short-term needs.

Alternatives

For a broader comparison, see Personal Tax Software. Choose H&R Block Online instead for a free, simple Form 1040 return, with its free plan billed per state filed. CloudTax is a better fit for Canadian users seeking a self-guided free plan capped at two returns, with a Plus tier also offered. TurboTax Canada is another free option for simple tax situations. H&R Block Tax Software Canada may suit Canadian filers seeking free return optimizations and support for T-slip and RL-slip income. WISO Steuer lets users test its functions and pay only when submitting a return. PITax is a free option for preparing Polish PIT declarations and submitting them. CHECK24 Steuer offers free online preparation and digital submission through the official ELSTER interface. SARS eFiling is a free route for submitting returns and declarations and managing tax services with SARS.

Verdict

TaxDown is best for Spanish filers with more than a simple salary return who want deduction checks, expert review and help across income types in one service. Its strongest reason to choose it is the blend of online filing and human fiscal support; look elsewhere if a free filing is essential or if FULL's exclusions conflict with the case.